of
OCEANOGRAPHY
1978
JUN
LIBRARY
Marine Science LaboratOr"
Oregon State University
A COMPILATION OF
OBSERVATIONS FROM MOORED
CURRENT METERS
VOLUME XII
WIND, CURRENTS AND
TEMPERATURE OVER THE
CONTINENTAL SHELF AND SLOPE
OFF PERU DURING JOINT II
March 1976 - May 1977
by
OREGON STATE UNIVERSITY
D. B. Enfleid
R. L. Smith
A. Huyer
Reference
Data Report 70
April 1978
National Science Foundation
OCE 76-00132
School of Oceanography
Oregon State University
Corvallis, Oregon 97331
A COMPILATION
OF OBSERVATIONS
FROM MOORED CURRENT METERS
VOLUME XII
WIND, CURRENTS AND TEMPERATURE
OVER THE CONTINENTAL SHELF AND SLOPE OFF PERU
DURING JOINT II
March 1976 — May 1977
by
D. B. Enfield
R. L. Smith
A. Huyer
Data Report 70
Reference 78-4
April 1978
National Science Foundation
Grant OCE 76-00132
Abstract
Oregon State University installed and recovered moorings
along the coast of Peru during the period late March 1976
through mid-May 1977.
A mid-shelf mooring near 15°S (MILA)
was maintained for the full duration of the experiment, through
five successive installations. This site was complemented
by six other moorings in the first half of 1976 and by nine
in the March-April-May 1977 period. These simultaneous
moorings were arranged in onshore—offshore arrays near 15°S
and in alongshore arrays at midshelf from lO°S to 15°30'S.
•
The data described in this report consists of the hourly
processed and filtered values of wind and current velocity,
air and water temperature, and pressure from the 1976-1977
Peru installations. We describe the data through installation
summaries, statistics tables, progressive vector diagrams,
speed and direction histograms, rotary spectra and time series
plots.
TABLE OF CONTENTS
Introduction
The JOINT II Aanderaa Current Meter Program
Instrument Recovery and Performance
Calibration
.
.
.
.
.
.
.
1
.
.
Processing and Description of the Data
7
•
.
•
.
•
•
•
.
8
•
•
•
.
.
.
10
Acknowledgments
13
References
14
Installations
Leg
I Moorings (MAM 76)
15
AGAVE
MILA
17
25
.
LOBI VIA
41
ISLAVA
59
SOUR .
71
Leg II Moorings
81
MILA .
LAGARTA
YUCA .
•
•
•
•
.
. .
•
. .
99
113
Leg III Mooring (JAS 76)
MILA .
123
Leg IV Mooring
MILA .
139
Leg V Moorings (MAM 77)
A GAVE
MILA
-
-
IRONWOOD
LAGARTA..
. .
S
•
•
S
•
215
LOBI VIA
•
.
S
•
S
S
•
229
•
245
EUPHORBIA
P ARODIA .
•
273
.
•
285
IMARPE Meteorological Installation
•
•
Appendix I
.
•
. .
•
•
•
•
331
.
.
•
S
•
S
5
337
YUCCATOO.
OPUNTIA .
.
PEYOTE
Appendix II
. . . .
.
. .
.
. .
.
315
•
Introduction
An interdisciplinary experiment called JOINT II was conducted in the
coastal upwelling region off the Peru coast from late March 1976 through
late May 1977.
This experiment was the culmination of a series of field
efforts carried out in various upwelling regions (Oregon, Baja California,
Northwest Africa) as part of the NSF International Decade of Ocean
Exploration Coastal Upwelling Ecosystems Analysis Program (CUEA).
The
Program goal is to understand the coastal upwelling ecosystem well enough
to predict its response far enough in advance to be useful to mankind.
The JOINT II effort contributes to this goal by extending the range of
natural conditions observed in coastal upwelling systems.
This report is concerned with data from the Aanderaa current meters
and meteorological data loggers installed during JOINT II by Oregon State
University (OSU, Corvallis).
Compilations of JOINT II hydrographic data for 1976
have been prepared by Codispoti et al. (1976), Barton (1977) and Huyer
et al. (1978). Compilations for 1977 are in preparation.
The JOINT II OSU Current Meter Program
The JOINT II Aanderaa moorings were set and recovered for five
contiguous periods:
Leg I:
late March to early May 1976
Leg II:
early May to late July 1976
Leg III:
late July to 30 September 1976
Leg IV:
30 September 1976 to 4 March 1977
Leg V:
early March to mid May 1977
2
The time and space distribution of the Aanderaa current meter data during
the first phase of JOINT II are shown graphically in Figure 1 for Legs I IV, and in Figures 2 and 3 for Leg V.
During Legs I, II and V moorings
were arranged in cross-shelf arrays from nearshore to the upper slope
and in alongshore arrays at midshelf from as far south as 15°30'S to as
far north as lO°S.
Intense coverage took place during Legs 1 and 2 from
late March through most of July; monitoring of currents at midshelf was
continued at l5°S (MILA) through February 1977; and the most intensive
measurements were taken during March, April and May, 1977.
Table 1 sunniiarizes the positions, water depths and accepted instrument
depths by legs for the JOINT II Aanderaa moorings (only instruments from
which data were obtained are included).
Several navigation charts were
used during JOINT II and their coastlines were found subsequently to be
mutually inconsistent.
Since most fixes were made by radar references to
coastline points, this has created some confusion and inconsistency in
geographically relating the moorings to each other, to the bathymetry
and to the station positions of research vessels. The problem is discussed
in greater detail in Appendix 1, and the charts used for the moorings are
noted in Table 1.
All of the moorings were subsurface taut-wire installations as
described (in principle) by Pillsbury, Smith and Tipper (1969).
Railroad
wheels were used for deadweight in conjunction with AMF acoustic releases
at the base of each vertical current meter string. Over the continental
shelf (250 m or less) flotation was provided by iF' diameter Viny floats
(above each instrument) and a 29" steel sphere (at the top of each mooring).
3
MAR
V
IMARPE
MET.
Figure 1.
Time—depth distributions of Aanderaa current meter data during JOINT—TI
from March 1976 to March 1977, and locations of current meter moorings
(inset). Lines are dashed where speed and/or direction data are missing0
Mooring location symbols are: A-Agave; M-Mila; L-Lobivia and Lagarta;
I—Islaya; S—Sour; Y—Yuca.
Figure 2.
Locations of JOINT II Aanderaa current meter moorings (a) at midshelf
in the alongshore directions and (b) near l5°S in the offshore
direction, from March through May 1977. Mooring location symbols
are: E-Euphorbia; M-Mila; V-Yucca Too; O-Opuntia; Pe-Peyote;
A-Agave; 1-Ironwood; Lo-Lobivia; La-Lagarta; Pa—Parodia.
5
OFFSHORE ARRAYS
ALONGSHORE ARRAYS
(tO°—16°S)
(15°S)
0-
MAR
-
25 -
50
-
75
-
f
APR
f
MAYI
464 Vt
-
I APR
025 —
I
-
50
-
75
-
1
I
MAYI
I
-I
£VPHOR8/A
100 -
-.
MILA ——-.4
I
25
I
0
50
25
75
75
25-
I
I
50-
I
Ia-
w
a
I
-
10025
IRON WOOD
-
175-
U
I
25
-
50
-
-
-
_) _____j
-
—
75
-
100
-
'I
--------
—--
too -
I
I,
200-
-
I-
— ——.4
-
400 -
L08/ V/A
8
-
-
500
-
600
-
OPt/NT/A
o_j____
25
GOC
i
-
r-
LAGAR TA
500-
-
—I-
I
—
300
400-
YUCCA Too
200 —
too —
300-
-
I-
H
I
I
-I
I—
-
-
I
ISO200
-
PARODIA
100
a,
I—-
--4
I
50
100
75
I
I—
-I
5075
I
PEYOTE
-
I
IMARPE
MET.
Figure 3.
Time-depth distributions of JOINT II Aanderaa current meter
data from March through May 1977.
Lines are dashed where
speed and/or direction data are missing.
6
Table 1.
Station
Summary of positions, water depths and instrument depths
for instrument arrays deployed by OSU in JOINT II. The
positions of the meteorological buoys (not listed) are
given in the installation summaries. Only instruments
from which data were obtained are listed.
M:
Meteorological buoy; T: Tide gauge
Position
Water
Depth (m)
Instrument Depths (m)
March — May 1976 (Leg I)'
Agave
Mjla—1
Lobivia
Islaya
Sour
15°02.6'S
15°05.PS
l5°1O.O's
l5°OO.O's
13°55.2'S
75°26.6'W
75°31.4'W
75°39.2'W
75°39.O'W
76°29.4'W
40
123
656
136
120
M,28,53,78
106,206,406,556,626
41,66,116
80,100
75°3O.5'W
75°39.5'W
77°21.7'W
128
465
120
M,33,62,84,109
115,212,312,412
80,100
123
28,53,79,104
119
23,48,73,99
75°30.8'W
121
75°32.g'w
75°34.3'W
205
580
620
123
124
620
117
117
M,19,39,59,80,100,l15
M,24,44,63,l05,155,l80,T
10,29
May — July 1976 (Leg 11)2
Mila—2
Lagarta
Yuca5
l5°07.2'S
15°08.7'S
l2°04.7'S
July — Sept. 1976 (Leg 111)3
Mila—3
l5°05.8'S
75°30.2'W
Oct. 1976 - March 1977 (Leg IV)3
Mila-4
15°06.O'S
75°30.2'W
March - May 1977 (Leg V)3
Mila-5
Ironwood
Lobivia
Lagarta
Euphorbia
Parodia
Qpuntia2
Yucca-Too5
Veyote6
15°06.O'S
15°09..9'S
15°11.5'S
l5°10.O'S
15°31.2'S
l4°55.7'S
l2°l4.2'S
12°04.6'S
9°57.8'S
75°36.O'W
75°0O.8'W
75°39.8'W
77°35.9'W
77019.5'W
78°24.3'W
58,83,183,283
M,92,115,214,512
M,25,63
M,24,64,104
129,224,324,524
37,57,97
37,56,96,T
March 1976 - May 1977 (Legs II - V)
IMARPE
12°03.9'S
1 Radar fixes and the German chart DHI
2
(Height:
77°O9.3'W
Satellite Navigator fixes
721
Radar fixes and the Peruvian chart DHNM 2200
Radar fixes and the Peruvian chart DHNM 2100
Radar fixes and U.S. chart H.O. 22173
6 Radar fixes and U.S. chart H.0. 22008
25 m above ground)
7
Moorings deeper than 250 m followed the Woods Hole Oceanographic Institution
mooring scheme for intermediate depths (Heinmiller and Walden, 1973) with
glass Corning floats for flotation and double acoustic releases.
All of the current meters moored were Aanderaa RCM4's.
They recorded
temperature, speed and direction at 15, 20, 30 and 60 minute intervals in
the manner described by Pillsbury et al. (1974).
Some current meters also
recorded pressure to monitor the mooring motion and the true mean depths
of the deployed instruments; a few of the instruments were equipped with
conductivity sensors as well.*
Meteorological buoys were moored at MILA during Leg I and Leg II,
and again at MILA, IRONWOOD, LAGARTA, EUPHORBIA and PARODIA during Leg V.
Each buoy consisted of a vertical tower with three toroids for flotation.
The buoys were tethered to concrete blocks and connected by ground lines
to the main anchors of the associated current meter arrays.
The buoys were
equipped with Aanderaa data loggers which recorded wind speed and direction,
air temperature, and water temperature three meters below the surface.
A meteorological tower with an Aanderaa data logger was installed
on the roof of the Instituto del Mar del Peru (IMARPE) from May 1976
through part of June, 1977.
were measured.
Wind speed and direction and air temperature
Data segments between servicings correspond approximately
to Legs II, III, IV, and V of the current meters.
Instrument Recovery and Performance
Twenty-three moorings with a total of 88 RCMts were set during
all the phases of JOINT II (Legs I - V).
In 1976 a shelf-break mooring
near 15°S (not shown) was completely lost (four RCM's), as was the deepest
* The conductivity data have not been fully processed and are not presented
in this report.
8
current meter at MILA (Leg 1).
In 1977 (Leg V) two moorings (not shown)
were completely lost (8 RCM's).
The 75 recovered RCM's successfully
recorded 95% of the possible water temperature data and 87% of the pos-
sible velocity data. The partial data records (no velocity) are indicated
by dashed time-lines in Figures 1 and 2.
losses due to
Table 2 summarizes the data
and causes of partial or complete instrument failures.
The data logger was replaced at the MILA meteorological buoy during
Leg I.
The first data logger recorded no data during a four week period,
and the second one recorded satisfactorily for the remaining 13 days of
the Leg I current meter mooring.
tether about mid-June 1976.*
The Leg II buoy tore free from its
Thirty-seven days of data were recorded
prior to breakaway (which was determined from the changed behavior of
the buoy orientation sensor).
Calibration
When Aanderaa instruments were first acquired by Oregon State
University, they were subjected to tests to evaluate sensor stabilities.
The initial results (Pillsbury et al., 1974) and subsequent experience
indicate that speed and direction sensors, if not obviously damaged, are
stable in time and adhere reasonably well to the manufacturer's specifications.
Current meter thermistors exhibit (at most) a slight linear
drift with time, correctable through successive calibration.
Pressure
and conductivity must be kept in calibration.
In-house calibration procedures have been developed by OSU (Pillsbury
et al., 1974) and the direction, temperature and pressure
* A Peruvian fisherman found it beached just south of the river mouth
at Rio Ica, northwest of Cabo Nazca (15°S).
Table 2.
Data losses due to instrument failures or fouling, and causes.
Affected
Station
Depth (m)
0
Days Lost
31
7
Channels
Cause
clock failure
II
100
46 3
compass malfunction
e
IV
23
20 0
speed sensor malfunction
S
IV
73
29 4
rotor fouled
S
V
0
64 0
data logger leaked
SW,
V
19
14 9
Ironwood
V
0
58 6
rotor fouled
orientation sensor failure
Lagarta
V
0
68 4
Lagarta
V
313
59 4
V
83
19 9
V
383
56 4
Euphorbia
V
103
51
Parodia
V
24
23 5
Parodia
V
24
54 5
tape transport failure
rotor fouled
pressure sensor failure
Opuntia
V
129
66 3
compass failure
o
Opuntia
V
324
17 7
battery failure
5,
Yucca Too
V
57
40 8
tape encoder malfunction
5, 0, T
Yuca
Mila
Mila
Mila
Mila
Lobivia
Lobivia
S, 0:
T, Ta:
P, C:
8
wind speed, direction
current speed, direction
water and air temperature
pressure, conductivity
compass, air temperature sensor failure
tape encoder malfunction
tape encoder malfunction
tape encoder malfunction
0W'
1,
Ta
1,
Ta
S
Ta
0, T
S, o, T, P,
S, 0, T
S, e, T
S,
S
P
e, I
C
10
sensors are usually calibrated between major experiments (i.e. at about
1-2 year intervals).
Undamaged and unfouled rotors are assumed to measure
speed correctly within the manufacturer's limits (calibration is considered
redundant and impractical).
Appendix 2 presents a discussion of the status
of water temperature calibrations for the JOINT II Aanderaa current meters
and buoys.
Processing and Description of the Data
The data described in this report were first read from the Aanderaa
magnetic tapes and preliminary plots and statistics generated to aid in
error detection.
The data recorded at 15, 20 or 30 minute intervals
(Legs I - III, V) were low passed so as to preserve information at tidal
and smaller frequencies, while reducing point-to—point scatter.
The low
passed data were then decimated to hourly values. The details of the
data processing are discussed by Pillsbury et al. (1974).
Due to the
long duration of the Leg IV mooring at MILA, the data were recorded at a
one hour sampling interval and were not filtered.
The descriptive materials in this report are ordered depthwise from
top to bottom in a separate section for each mooring; the mooring sections
are ordered by leg, offshore distance and south-to—north distance,
respectively.
The header page for each mooring section summarizes
information about the position, offshore distance, bottom depth, and
intervals for each mooring installation. A short table lists pertinent
information about the instruments with columns as follows:
Intended Depth:
based on mooring wire lengths and the intended bottom depth.
11
Accepted Depth:
based on mooring wire lengths and the mean depth(s)
of one or more instruments as given by pressure sensors.
Serial/Tape Number:
serial number assigned by the manufacturer and
the sequence number of the magnetic tape recorded by the
instrument (thus, 485/10 is the tenth tape recorded by
machine #485).
Measured variables:
S, 0 = current speed and direction;
ow = wind
speed and direction; 1, Ta = water and air temperature;
I', C = pressure and conductivity
A section for comments provides specific information (if any) about
malfunctions and/or the duration, kind and quality of data subsets.
Following the header page is a figure with the progressive vector
diagrams (PVD's) -for the current meters in the mooring.
Each current
meter in turn is described by a statistics table; a figure with histograms of speed and direction and the rotary spectrum; and a figure with
time series of onshore (u) and alongshore (v) velocity components,
temperature and pressure (if any).
The PVDts represent pseudo-trajectories referred to East-West and
North—South axes, in kilometers.
on the corresponding day.
Each dot on a PVD refers to 0000 GMT
Information given in the summary tables can be
used to assign dates to the dots, if necessary.
The statistics tables give the following types of information:
Header:
identification, time interval, filtering.
12
First/Last 5 Lines:
line image listing of first and last five lines of
the data file, to illustrate the format.*
Statistics for E-W (U) and N-S (V) velocity components:
velocities are
taken as positive toward the East (U) and North (V).
Vector mean speed and direction
Directional steadiness:
the ratio of the vector mean speed to the scalar
mean speed, i.e. the current stability of Neumann (1968).
Principle axis (of variation):
Statistics for rotated data:
given as a compass direction (°T).
the velocity components are rotated into
the onshore/alongshore coordinate system as defined by the
JOINT II hydrographic sections, and basic statistics are given
for scalar speed, onshore velocity (U), alongshore velocity
(V, positive toward NW), temperature (1), and pressure (P, if
any).
The rotary spectra were computed when the length of a time series
permitted, and are presented with the histograms.
The rotary spectrum
was generated from the hourly velocity components (E—W and N—S), typically
for a 2 or 3 month period.
The series were divided into detrended segments
(usually two), raw spectral estimates were computed for each segment, and
the results were hanned (once).
The procedure was modified according
to record length so as to consistently induce about 10 degrees of
freedom.
Rotary spectra and their interpretation are discussed by
Gonella (1972), Mooers (1973) and O'Brien and Pillsbury (1974).
* These normally give GMT hour, date, month, year, east-west velocity (U),
north-south velocity (V), cumulative velocities (Eu, Ev), water temperature (T). pressure (P) and conductivity (C). Units are: U, V (cm/sec
for currents, rn/sec for wind); T (°C); P (pascals); C (mrnhos). The
actual format will vary depending on the data channels recorded by the
instrument.
13
The time series plots are grouped by instruments. These figures
give the onshore and alongshore velocity components, temperature, and
pressure (if any) with time.
Abcissa tics are at 0000 GMT on each day
(the first day of each month is indicated).
AC KNOWLEDGMENTS
We gratefully acknowledge the support for this program which came
from the National Science Foundation grant OCE 76-00132.
program was managed by R. Still with
the aid of B.
The field
Moore; D. Baratow
and B. Moore were principally responsible for the calibration; mainten-
ance and preparation of the instruments; and J.
processed
the data.
Bottero and D. Root
Our special thanks and recognition go to these
people for their indispensable assistance.
14
References
Barstow, D. 1978. Calibration of the Aanderaa current meters for
temperature. Exposure. In press.
Barton, Eric D.
1977. JOINT II - R/V THOMAS G. THOMPSON Cruise 108,
Leg 1: CTD measurements off the coast of Peru near Cabo Nazca,
April—May 1976. IDOE Coastal Upwelling Ecosystems Analysis.
Data Report 39.
Codispoti, L. A., D. D. Bishop, M. A. Friebertshauser, and G. E. Friederich.
1976. JOINT II — R/V THOMAS G. THOMPSON Cruise 108: Bottle data,
April - June 1976. IDOE Coastal Upwelling Ecosystems Analysis.
Data Report 35.
Gonella, J. 1972. A rotary component method for analyzing meteorological and oceanographic vector time series. Deep-Sea Res.,
19:833-846.
Heinmiller, R. G. and R. G. Walden. 1973. Details of Woods Hole
moorings. Woods Hole Oceanographic Institution Technical Report
73—71.
19 pp.
Huyer, A., W. E. Gilbert, R. Schram, and 0. Barstow. 1978. Temperature
and Salinity Observations off the Coast of Peru, R/V EASTWARD.
23 July - 16 August 1976. School of Oceanography, Oregon State
Data Report 69. Reference 78-3.
University.
Mooers, C. N. K.
1973. A technique for the cross spectrum analysis
of pairs of complex-valued time series, with emphasis on properties
of polarized components and rotational invariants.
20:1129—1141.
Neumann, G.
Vol. 4.
1968.
Ocean Currents.
Deep-Sea Res.,
Elsevier Oceanography Series
Elsevier Scientific Publishing Company, New York.
O'Brien, J. J. and R. D. Pillsbury. 1974. Rotary wind spectra in a
sea breeze regime. J. App. Met., 13(7):820-825.
Pillsbury, R. D., R. L. Smith and R. C. Tipper.
1969.
A reliable
low cost mooring system for oceanographic instrumentation.
Limnol. Oceanogr.,, 14:307-311
Pillsbury, R. D., J. S. Bottero, R. E. Still, and W. E. Gilbert.
1974.
A Compilation of Observations from Moored Current Meters, Vol. VI,
Oregon Continental Shelf, April — October 1972. Oregon State
University, School of Oceanography, Corvallis. Data Report 57.
Reference 74-2.
Preller, R.
1977. Nearshore bathymetry map and contoured bottom
topography map. CUEA Newsletter, 6(4):48-50. Coastal Upwelling
Ecosystems Analysis Program, Duke University Marine Laboratory,
Beaufort, N.C.
15
INSTALLATIONS:
Leg I (MAM '76)
17
JOINT—Il 1976 Installation
AGAVE I
Posi tion*:
Distance Offshore:
Bottom Depth:
Set:
15°02.6'S, 75°26.6'W
1.5 km
40 m
Retrieved:
Longest Data Interval:
1854 GMT 23 March 1976 by R/V ALPHA HELIX
1651 GMT 7 May 1976 by R/V THOMPSON
0300 GMT 24 March to 0900 GMT 7 May
Longest Record Length:
44 days, 7 hours
Instrumentation
Accepted
Serial
Depth
Depth
Tape #
20 m
40 m
10 m
29 m
687/20
501/35
Intended
Sampling
Interval
30 mm
30 mm
Measured
Variables
S,o,T,P,C
S,O,T,P
Comments:
The mooring position (above) was determined when deck work started.
By the time of anchor release (set time) the R/V ALPHA HELIX had
drifted considerably shoreward but a new position was not logged.
Accounts of observers suggest that the ship was about one kilometer
offshore when the installation was completed.
* Navigation: radar fixes and German chart DHI—721.
300
25
50
75
100
180
120
—'5
—100
—240
—120
—60
60
—125
—150
10 METERS AT AQAVE.
44.8
DAYS
STARTINC. 2041 23 MAR 76.
2P METERS AT ACAVE.
44.8 DAYS STARTING 2011 23
76.
125
150
19
MGLVE
HOURLY
3
7
3 76
7b
23.7 —12.'.
26.3
500
bOO
—30.8
5 76 —18.3
5 7b
7.0
5
800
7
903
7
49.7
59.2
53.4
31.5
4.9
—5.9 —14.1
3 76 —21.8
7
—3.1
19.1
23.2
.31.9
13.97
.23.7
11.1
5 LINES OF JATA
7
5 7b —28.4 16.+
7
5 7o —16.6
LAST
FILTERING
LOW PASS
OF DATA:
3 76
2.,
24
24
INTERVAL
40
I
FIRST 5
30C
TAPE
JEPTH
LEG
STATION
—7.5
3.6
—13.'.
—18.5
-5522.9
—5539.5
—5570.3
—5588.6
—5581.5
13.97
13.97
13.97
13.94
7656.4
7651,4
7700.5
7723.7
16.OL.
7755.6
15.97
16.02
16.i4
15.99
99296
100690
101306
'+1.910
'+1.898
1U1276
101823
'+1.921
101711
131144
43.902
10i690
130875
100567
43.899
'+3.861
'+3.870
'+3.544
COMPONENTS
STATISTICS FOR E—W(U) AN)
AVG(U) AVG(V) VAR•(U) VAR(V) 513(0) STO(V) COV(UV)
22.1 —15J.2
318.5
N
41.914
g.e ciis, OIR =
VECIOP MEAN: 5P3 =
DIRECTIONAL ST!A3I4ESS 32.0
—.3813
—35
7.
DEGR€ES(T)
AXIS IS
FOR COOROINATES ROTATED '.5
135 OFGREES(T))
DIRECTION
LEG I
AGA'JF
•
N
(Cr1/5)
(DEfl C)
rD
1363
KURT
MAX
MIN
9.9
—.5
2.9
53.1
.8
15.9
—.1
2.6
'.1..2
-42.1
8.9
23.5
—.4
1.8
58.1
—43.5
15.5
.7
—.3
2.8
17.4
13.8
.3
3.6
11.1
9.3
1q63
U
V
MEAN
2
S
r
13.2
20
10 METERS Al ACAVE.
23 lIAR 76 TO 7 MAY 76.
0.16
TAPE
687/20.
,LIICAN
0.14
0.12
,.
0
0.10
0.08
II.
0.06
0.04
0.02
0.00
7.4
0
25.3
19.4
13.4
31.1
36.9
42.5
48.1
53.6
59.1
64.4
SPEED, Cr1/SEC
0.06
0.05
0.04
0.03
0.02
0.01
0.00
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
340
360
DIRECTION, DEGREES TRUE
10000
1000
100
10
—3
—2.5
—2
—1.5
—1
—0.5
0
0.5
FREOI.UICY, CYCLES PER DRY
1
1.5
2
2.5
3
21
50.00
30.00
iLk.
10.00
E
-10.00
-30.00
-50.00
60.00
50.00
30.00
10.00
>
-
—10.00
—30.00
17.50
17.00
16.00
U
CD
w
0
15.00
I14.00
12.00
0
I.
10.00
0.
I
I
I
IIIJ I
I
I
I
I 11111
I
I
I
I 11111
I APR
10 M AT AGAVE
44.0 DAYS STAR'rxNG
fil Ii
I MAY
LEG 1: HOURUESI
300 QMT 24
1876
22
STATION
CEPTH
LEG
1
TAPE
531/35
29
INTERVAL
HOURLY
FILTERING
LOW PASS
FIRST 5 LINES OF flATA:
24
4+Ou
2'+
500
7
—13.7
3 76 —10.0 —12.3
3
3
3
700 24
7t
3 76
2.2
16.u
8.5
11.5 —12.6
5 LINES OF DATAI
7
5 76 —10.8 13.4
LA ST
0
6U3
'U.
803
900
7
5 76
7
5
5
5
7
7t
—5.5
—7.2
—7.9
—8.2
16.8
17.6
—14.8
—24.8
—22.5
—6.5
4.9
—13.7
—22.9
3746.9
3741.4
3134.2
3726.3
3718.1
—2471.0
—2454.1
—2438.9
—2422.8
—24U5.3
STATISTICS FOR E—W(tJ)
AVG(U) AVG(
N
—2.3
1
VECTOR
135.5
—46.6
13.82
13.o7
13.51
13.46
15.59
15.57
15.60
294798
294785
294807
294796
294801
1
2
3
4
5
292931
292827
293344
29333k
293272
1059
1063
1061
1062
1063
AN:J
ST)(U) $10 CV) COV(UV) CRLTN
11.5
13.6
—79.0 —.4983
VAR
.2 GuS,
123 OEGREES(T)
STEADI4ESSt 23.5 Z
SPO =
AXIS IS 143.8 3€GREES(T)
STATISTICS FOR CGOROp'4ATES ROTATED
45 DEGREES
(EQUIVALENT ALONGSHORE
135 )EGREEStTJ)
LEG 1
MG AVE
29 M
N
S
Li
(CM/S)
P
SID
17.7
5.0
SKEW
—
163
"
T(DE(, C)
MEAN
4.1
163
1.
KURT
MAX
MIN
3.7
31.3
1.8
2.6
28.6
15.5
.5
1.7
30.2
—27.5
.6
—.6
2.9
16.5
13.4+
.2
.8
3.5
28.8
23
29 METERS AT AGAPE.
23 APR 76 TO 7 tIAT 76.
TAPE 501/35.
0.14
0.12
0.10
0.08
0.06
3
0.04
0.02
0.00
4.3
0
10.4
7.4
13.4
19.4
16.4
22.4
28.2
25.3
34.0
31.1
36.9
SPEED. CA/SEC
0.07
0.06
0.05
0.04
Iii
I''Iw
0.03
a
a
0.02
0.01
0.00
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
340
360
DIRECTION. DECREES TRUE
1000
100
10
—3
—2.5
—2
—1.5
—1
—0.5
0
•
0.S
CYCLES PER OAT
1.5
2
2.5
3
24
30.00
z
3
10.00
-10.00
-30.00
40.00
30.00
U)
10.00
I
C.)
—10.00
WI
-30.00
17.00
16.50
15.50
14.50
13.50
12.50
1I
i
APR
28 M R7 A6AVE
44.0 DAYS STARTXNC
AA
I MAY
LEC
1
HOURUES,
300 QMT 24 MAR 1876
25
JOINT—Il 1976 Installation
MILA I
Position*:
15°05.l'S, 75°31.4'W
Distance Offshore:
12.0 km
Bottom Depth:
Set:
123 m
Retrieved:
1533 GMT 9 May 1976 by R/V THOMPSON
Longest Record Length:
44 days, 21 hours
1351 GMT 25 March 1976 by R/V ALPHA HELIX
Longest Data Interval:
1700 GMT 25 March to 1300 GMT 9 May
Instrumentation
Intended
Accepted
Serial
Depth
Depth
Tape #
0m
25 m
50 m
75 m
0m
28 m
53 m
78 m
Dl 26/8
752/21
486/29
490/27
Sampling
Measured
Interval
Variables
20 mm
20 mm
30 mm
30 mm
Sw,Ow,Ta,T
S,e,T,P,C
S,o,T
S,O,T
Coments:
The met buoy at MILA was serviced on 26 April, data logger D129 being
replaced by D126. While the latter recorded satisfactorily for the
remaining 12½ days of the mooring, the data from D129 was unusable
due to a clock failure. The current meter near 100 meters was lost
on retrieval (fouled in the screw of the R/V THOMPSON).
RCM 490 was installed with the clock cycling every 30 minutes. When it
was recovered the instrument was cycling at 60 minute intervals. Processing
was done assuming that the interval changed from 30 to 60 minutes at a
single point and remained at 60 for the remainder of the record. This
timing change point was chosen so that the in situ period agrees with the
number of cycles on the data tape and occurs at 0521 2 April. The 30
minute section was decimated to every other point and combined with the
60 minute portion to create a single raw file with
= 60 minutes.
* Navigation: radar fixes and German chart DHI—721. The position of the
MILA I meteorological buoy was estimated to be within ½ n.m. of the
subsurface array.
26
5400
2200
1800
-5400
—4500
—3600
—1800
—900
—900
WIND AT tIILA.
13.0 DAYS STARTING 1342 26 APR ?6
27
)FPTH
LEG
STAT TO N
MILA
0
1.
FIRST 5 LINES OF DATA!
1.2
2000 26
2.0
—3.3
4
2100 26
6.0
4 76 —6.6
2200
5.8
4 7f..
—5.3
2300 26
3.8
—7.0
4
0 27
LINES OF DATAI
LAST
300
400
S
9
9
5 76
5 76
5QQ
9
9
9
5
600
700
5 76
_7•5
—7.8
—7.5
5.2
4.8
6.3
TAPE
INTERVAL
FILTERING
!)126/3
HO Ii RI V
LOW PASS
—4.0
—7.8
—19.7
—26.7
—1274.3
—1281.3
—1289.6
—1297.1
'.2 18.83
17.81
9.2
15.0
18.71
18.50
17.59
17.32
1381.2
17.64
1336.0
17.53
1.9
2
3
4
5
18.33
16.81
16.73
16.70
16.71
17.51
1392.2
1393.o
296
297
298
299
5 7E
N—S(V) COIPCNENTS
STATISTICS FOR E-W(U)
N
—-.3
3011
AVG(\/) VAR(U) VAR(V) 3T0(U) 510(V)
1.7
'.0
2.8
-,.7
4.0
=
VECTOR 4EANt
JIQECTIONML
=
COV(UV)
—.8
C9LTN
—.2419
—+2 CEGREES(T)
7.
JEGREES(T)
PRINCIPAL AXIS IS
STUCS ALONGSI4JRE
FOR COORDINATES ROTATED
DIRECTION = 136
MILA
)EGREES
I
GM
VARILY3IE.
N
MEAN
Sb
SKEW
KURT
5
303
6.6
2.0
—.6
3.0
U (MiS)
300
.2
1.6
.3
3.9
(M/S)
300
2.1
—.7
'I
'.W
A
(CEG)
MAX
MIN
.8
7.1
—4.0
10.3
—1.0
300
16.9
.5
—.1
2.7
18.1
15.7
300
1.1
.5
.1
2.1+
1.3
16.7
28
WIND AT
PIILA.
26 APR 76 10 9 MAY 76.
TAPE 0126/8
,I,IIERN
0.30
0.25
0.20
g
0.15
0.10
0.05
0.00
0
4
3
2
1
10
9
8
7
6
S
12
11
SPEED, N/SEC
0.22
0.20
0.18
0.16
0.14
U
0 •
12
0.10
0.08
Ii
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
180
200
220
DIRECTION, DEGREES TRUE
240
260
280
300
320
340
360
29
6.00 -r
4.00
T
3
4.
-4.00
12.00
10.00
I
U)
—2.00
16.50
16.00
17.00
CD
w
0
I-
16.00
15.00
IllIlIlIllIlD
19.50
19.00
(P
w
0
C
17.00
16.00
I..
I MAY
0 t4 AT P4ILA
13
LEG 1:
DAYS STARTING 2000 GP4T 26 APR 1976
125
375
SCO
425
750
125
-125
25 ft AT
44.p CAV$
1523 25
-'2$
53 11 AT ftILA.
75 ft AT AILS.
44.9 VATS
1421 25
74
44.5
25
74
31
TAPE NO
752/21
LEG
tIILA
28
1
FIRST 5 LINES OF DATA:
220C 25
25
C 26
2o
26
LAST
5
20C
300
9
9
3
3
3
3
3
75
76
75
75
76
20.5
16.1
15.4
14.7
14.6
20.5
9
76
SuJ
9
5 76
6CC
9
5
1.6
3.Li
2.3
—12.6
—27.5
-69.5
289350
287996
281487
278340
278109
18105.9 —10961.5
18105.0
181ub.6 —10919.7
10. 99.5
19109.6
18112.0
15.95
15.9C
15.31
15.35
15.33
278670
279760
279825
230613
36.7
52.1
66.8
81.4
23.b
20.2
FILTERING
LOW PASS
14.45
14.32
14.23
14.28
14.38
—14.9
—13.2
—13.2
-15.5
LINEs OF DATA:
5 76 —2.5
22.9
5 76 —0.9
21.2
INTERVAL
HOURLY
2822.42
'+2.576
42.390
42.286
42.325
42.413
43.9C3
'+3.812
43.829
'+3.908
STATISTICS FOR E—W(U) AN) N—S(V) COMPONENTS
VARCU)
AVG(U)
N
17.C
1065
—10.2
V4R(V)
191.3
86.1
9.3
19.8 CM/S,
VECTOR MEAM SPO =
DIR
STO(V) COV(U\I)
—67.5
13.8
CRtTN
—.5253
= 121
OIRECTIONAL STEADINESS: 82.C X
PRINCIPAL
IS 154.3 OEGREES(T)
DEGREES
STATISTICS FOR COORDINATES ROTATED
135 £EGRE€S(T1)
(EDUI'JALENT
LEG
H IL A
1.
28 M
VARIA3LE
N
MEAN
STO
SKEW
KURT
MAX
MIN
.6
2.9
50.3
1.7
2.7
27.2
—19.0
S
(CM/S)
i.065
9.3
Li
(Cr/S)
lGbS
8.4
V
1065
—19.2
.4
T(0E6 C)
tC6S
15.5
.7
icss
23.3
.5
—50.3
—.3
2.6
17.2
3C.i+
13.5
32
28 P1 AT PIILA.
76.
76 TO P
25
Tf%PE
752/21
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
6.5
11.7
16.8
21.9
26.9
31.9
36.0
41.?
51.2
46.5
55.9
SPEED, CM/SEC
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
340
360
DIRECTION. DECREES TRUE
1000
100
10
0.1
—3
—2.5
—2
—1.5
—1
—0.5
0
0.5
FREQUENCY. CYCLES PER DAY
1.5
2
2.5
3
33
30.00 -
20.00-
, F,
—20.00
lu-I
30.00
20.00
0.00
-20.00
> -40.00
-60.00
17.50
17.00
16.00
U
Ui
C
15.00
I14.00
31.00
30.00
C
9
L
L8.00
26.00
I APR
28 N AT MILA
LEG 1: HOURLIES1
44.0 DAYS STARTING 2200 GP4T 25 MAR 1976
I
MAY
34
STATION
LEG
IIILA
53
FIRST 5 LINES OF DuTA
25
3 7
21.R 18.0
376 18.6 —18.8
0 2b
100 26 3 76 19.6 —13.3
26
3 76 16.t —16.3
303 26
3 76 17.8 —i.L+.1-
4u3
LINES OF DATAZ
5 76 17.8 28.6
5 76 15.9 29.9
9
5 76
17.3
27.7
b3u
9
9
LAST
5
20J
9
9
50j
5 76
5 76
FILTERING
LOW PASS
.
—18.0
—36.8
—50.2
13.38
13.36
13.37
13.40
13.51
1
18082.3 —15)94.7
13098.2 —15064.8
—15Q37.0
18133.0
15.16
15.15
15.18
15.14
1060
1061
10€2
1063
13149.'.
15.11
1064
21.8
60.0
76.1
93.8
—80.6
2
3
4
5
.
17.5
16.i+
INTERVAL
TAPE NO
1+36/29
OE°TH
1
22.2
1L+969.1
STATISTICS FOR E—W(U) ANJ N-S(V) COMPONENTS
AVG(J)
N
1C6'+
17.1
66.6
VAR(V) STO(U) 510(V) GOV(UV)
CRLTN
8.2
93.9
9.7
—28.9 —.3651
VECTOR lEAN: SPO =
22.1. CMIS,
UIRECTIONAL
OEGREES(T)
OIR =
92.3
PRT'%JGIDAL AXIS IS j'+7.7 JEGREES(T)
ROTATEO
MILA
LEG
53
VARIP3LE
1.
MAX
NUN
2.7
51.1
1.2
.3
4.5
32.8
—15.1+
.3
3.5
1.4.0
2.8
15.9
313
S$(EW
lCo4
2s.0
8.7
.3
U
1C61+
2.1
7.2
V (CM/S)
lOoL.e
.4
C)
1C6.+
S
(Cl/S)
DEGREES
'1
MEMN
N
1+5
135 DEGREESCI))
(EQUIVALENT
13.3
35
25 ?V(R Pd TO 9 (lAY 76.
53 M AT (lILA.
TAPE 486/29
lEAN
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
11.7
6.5
0
27.0
21.9
16.8
36.9
31.9
41.7
46.5
51.3
56.0
SPEED, Cr1/SEC
0.24
0.22
0.20
0.18
0.16
Id
a
0.14
0.12
I.-
0.10
0.08
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
140
180
160
200
220
240
260
280
300
320
340
360
DIRECTION. DECREES TRUE
1000
100
10
0.1
—3
—2.5
—2
—1.5
—1
—0.5
0
•
0.5
CICLES PER OAT
1
1.5
2
2.5
3
______
36
40.00
!
r'
V
20.00
0.00
-20.00
-40.00
—60.00
16.00
15.50
6
0
14.50
13.50
12.50
I
—
APR
53 N AT MILA
LEG 1: I4OURLIES,
44.0 DAYS STARTING 2300 GMT 25 MAR 1976
MAY
37
STATION
TAPE
DEPTH
LEG
MILA
INTERVAI_
'10
1+93/27
78
I
5 LINES OF OATA*
1700 ?5 3 76 17.0 —17.3
3 76 j9•i+
25
3 76 17.5 —15.5
1900 25
17.0
30.1+
—17.3
76
11.7 —1'j.9
65.6
0b.7
3 76
13.3 —19.8
78.9
—86.5
25
2130 25
LAST
S
9uJ
9
1_000
9
1200
3
18 • 0
q
76
76
76
76
9
5
76
15.3
15.5
12.6
15087.0 —13718.3
—13715.6
—13709.8
15128.L+
2.2
2.3
5. 8
7.
lk.84
14.32
14.31
1+ •
37
14.36
STATISTICS FOR E—W(U)
3
1+
5
Ar'4i)
1073
1074
1075
1376
1077
N-3(V) COMPCNENTS
VAR(U) VARW) 310(U) STD('1) COV(t!V)
—31.9
8.3
68.7
6'.0
AVG(U)
N
•
1
2
OF
5
5
5
5
•
53.9
13.30
13.30
13.30
13.33
13.33
1u77
fUR = 13? OEGREES(T)
SPO
VECTOR
CRLTN
—.1+642
DIRECTIONAL
7.
OEGREES(T)
AXIS IS
COORDINATES ROTATED '+5 DEGREES
IRECTION = 135 JEGREESCT))
LF
N
S
1Z•77
U (CM/S)
1077
'I
(CNI/S)
T(DEG &)
1.0
—13.9
1077
STO
SKEW
KURT
MAX
MIN
7.9
.3
3.'+
'+6.9
2.9
6.1
.0
2.9
17.6
—14.9
.2
3.9
14.7
—(.6.9
—.7
2.9
15.5
13.3
lu
.5
38
78 fl AT
fuR.
25 liAR 76 10 9 my 76.
TaPE 490/V
0.09
0.08
0.07
0.06
0.05
IS.
0.04
0.03
0.02
0.01
0.00
5.7
o
10.0
14.3
22.8
18.6
27.0
31.2
35.3
39.3
43.4
47.4
51.3
SPEED, Cf/SEC
0.24
0.22
0.20
0.18
0.16
U
0
0.14
0.12
$1.
0.10
d
0.08
o .os
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
340
360
DIRECIII*1, 0EC8Et5 TRUE
1000
100
10
0.1
..3
—2.5
—2
—1.5
—1
—0.5
FREQUENCY
0
•
0.5
CYCLES PER OAT
1
1.5
2
2.5
3
39
20.00
0.00
L
L..
L
Ldi.
\t
—20.00
20.00
10.00
—10.00
;-30.00
-50.00
15.50
14.50
w
U
I-
13.50
12.50
111111,11111111111)1111111 111111 I
I
I APR
78 M AT MILA
LEG 1: HOURUES,
44.0 DAYS STARTING 1700 CV4T 25 MAR 1876
I
MAY
41
JOINT-Il 1976 Installation
LOBI VIA I
Posi tion*:
Distance Offshore:
15°lO.O'S, 75°39.2'W
Bottom Depth
656 m
28.5 km
Set:
Retrieved:
2140 GMT 24 March 1976 by R/V ALPHA HELIX
2122 GMT 7 May 1976 by R/V THOMPSON
1000 GMT 25 March to 1400 GMT 7 May
Longest Record Length:
43 days, 10 hours
Longest Data Interval:
Instrumentation
Accepted
Serial
Depth
Depth
50 m
150 m
350 m
500 m
570 m
106 m
206 m
406 m
556 m
626 m
Intended
Sampling
Measured
Tape #
Interval
Variables
684/28
749/23
452/32
500/37
488/23
20 mm
20 mm
30 mm
30 mm
30 mm
S,O,T,P,C
S,e,T,C
* Navigation: Radar fixes and German chart DHI—721
S,o,T
S,e,T
S,e,T
-too
—e
206 IETORS AT LORLYtA.
NT L(SIVIR.
104
43.9 DOTS STARTING 2229 24
43.9 OATS STARTING 2224 24 OAR .'d.
-U
12
—24
-d
-40
—I.
—100
•'?S
—50
—25
—DP
—25
626 0 NT LONIVIA.
—24
404 Il AT LOBIVIA.
43.9 DAYS STARlING 2243 24
74
504 N AT lAILVIA.
43.9 OATS STaRTING 2341 24
IV& 74
43
LEG
OEPTH
I
106
LOBIVIA
S
25
bCG 25
700 25
800 25
90u
LINES OF OAIA
76
20.5
3 76
3 76
3 76
21.7
22.2
21.7
21.b
3
7€
LAST
IC3U
5
11.00
120ü
1330
7
7
.
7
7
20.5
-16.2
—17.2
—13.4
—2u.1
LINES OF DATA:
—3.3
5 76
33.6
3 76 31.6 —2.6
—3.1
5 76 33.2
35.8 —1.9
5 76
5 76
38.8
INTERVAL
TAPE rio
—13.8
13.14
1071855
'#1.355
41.313
13.d5
1077422
1082701
'+2.2
6L+.'+
FILTERING
LOW PASS
1.385776
86.2
107.8
—8o.7
13.U7
1086121
41.289
14239.8 —10981.0
14.72
1'+271.'+ —10983.6
14.68
14.68
14.71
14.74
1059381
1058940
1058331
1059293
1062775
'+2.763
'+2.727
1
1
42.711
42.714
42.732
1
14304.5
14340.'. —i0988.b
1'+373.2 —10989.5
STATISTICS FOR E—W(U) AN) N—S(V) COMPONENTS
STOCU) STO(V) COV(UV)
—66.5
8.6
11.)
A\/G(V1
—10.5
121.7
MEAN: SOD =
73.3
17.'. C'1fS,
DIR
STEAOINESS'
CPLTN
—.7U'+1
= 127 OEGREES(T)
V.
AXIS IS 125.)
'+5 DEGREES
STATISTICS FOR COJROI'4ATES ROTATED
= 135 OEGREESCTI)
(EOUIdALThT ALONGSHORE
LEG 1
I
VARIAaLE
S
(CM/S)
106
U
V
(CM/a)
T(JEG C)*
MIN
19.7
lu.5
2.3
5.6
.5
5.?
2.8.3
—17.2
12.8
.2
2.8
23.2
—48.2
2.2
14.8
12.9
1'..3
11'+.C
13.8
1.2
* No post-calibration
MAX
SKEW
N
142
M
1.3
2.3
Temperature data were processed using
available.
the pre-calibration of 27 November 1973. See discussion in Appendix 2.
1
1
44
106 tEIERS AT LOBIVIA.
24 APR 36 10 7 APt 76.
TAPE
604/28.
36.8
41.1
0.08
0.06
0.05
0.04
0.03
0.02
0.01
0.00
5.0
0
10.4
14.9
19.4
23.0
20.2
32.5
45.3
49.5
53.6
SPEED. WI/SEC
0.26
0.24
0.22
0.20
0.18
0.16
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
340
360
DIRECTION, DECREES TRIM
1000
100
10
0.1
-3
—2.5
—2
-1.5
—1
—0.3
0
0.5
PREO(RNCT, CYCLES PER OAT
1
1.5
2
2.5
3
45
30.00
20.00
'S
-20.00
30.00
tn
10.00
'S
—10.00
> -30.00
—50.00
15.00
14.00
0
13.00
12.00
114.00
112.00
2C
0
110.00
108.00
106.00
104.00
IAPR
106 N AT LOBXVIA
43.0 DAYS STARTING
MAY
LEG lz HOURLXES1
500 GM? 25 MAR 1976
46
STATION
LEG
206
1
FIRST 5 LINES
50!3 25 3 76
3 76
600 25
3
3
TAPE
INTERVAL
FILTERING
71.9/23
HOURLY
LOW
OF OA'A:
1.6.6
12.81
—3.9
16.6
—9.9
5
7
I1JO
7
7
0
76
12.85
LINES OF DATA:
14.7 —4.9
5 76
5 7
10.3 —4.5
S
7o
8.1.
7
7.6
7
5
7
5 76
7.8
2774.7
27R5.0
2793.'.
'+.8
—5.2
MVG(U)
2.7
N
—1.6
-166?.2
—168o.7
—1691.5
—1b96.7
—1701.9
13.25
13.19
13.16
13.16
13.18
3
40.979
0
41.353
41.293
41.259
1
i+1.262
'.1.282
I
0
0
0
ANO N—S(J) COMPONENTS
STATISTICS FOR
1042
43.946
0
17.9 -11.7
3 76
lAST
1000
PASS
VAR(U) VAR(V) STD(L) STO(V) COV(UV)
9.8 —112.5
12.6
95.9
159.8
3.2 CM/S,
VECIOR MEAN: SPO
jIRECTIONAL
CRLTN
—. 9C 84
121 DEGREES(T)
23.3
7.
AXIS Is 1.27.1. DEGR€ES(T)
COORDINATES ROTATED
= 135 JFGREESCTI)
ALONGSHORE
LEG
JA RIABLE
N
lu 42
S
U (N/S)
V
(CM/S)
T()EG C)
1C42
.5 DEGREES
1.
MEAN
510
S<EW
13.5
9.1
1.
.8
3.9
.3
15.5
.2
'(URT
MAX
45.6
.3
2.7
12.8
—10.3
1.1
4.0
45.6
—23.1.
.5
2.9
13.6
1.2.6
1
1
1
47
206 PETERS AT LOSIVIA.
76.
76 TO 7
24
TAPE 749/23.
0.10
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
5.8
0
14.9
10.4
23.8
19.4
25.2
32.5
36.8
41.1
45.3
49.5
SPEED. Cfl/SEC
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
180
200 220
240
260
280
300
320
340
360
DIRECTION, DEGREES TRUE
10000
1000
I100
10
0.1
—3
—2.5
—2
-1.5
-I
-0.5
FREQUENCY
0
•
0.9
CYCLES PER DAT
1
1.5
2
2.5
3
48
2C.OU
0.00
h-'..
—
-20.00
50.00
U)
10.00
> -10.00
-30.00
14.00
0
w
13.00
I-
IAPR
206 14 Al' LOBIVIA
43.0 DAYS STARTIN6
IMAY
1:
HOURLIES
500 GMT 25 MAR 1576
49
STATION
LEG
DEPTH
LOB IVIA
1
1+36
FIRST 5 LINES OF DATA:
500 25 3 76 11.5 —8.6
600 25 3 76 10.3
-9.6
703 25 3 76
8.3
—9.1+
8u0 25 3 76 10.6 —7.1.
3 76 12.7 —4.2
25
LAST
900
1000
5
7
7
1100
1200
1300
7
7
7
LINES OF OATAS
5 76 —0.3
.0.6
5 76 —0.2
0.7
5 76 —0.6
1.5
5 76 —0.1
1.1+
5 76
C.'+
1..
TAPE NO
11.60
53.3
—8.6
—18.3
—27.7
—34.8
—38.9
—2216.1
—2216.3
—2216.9
—2217.0
—2216.6
1229.1
1229.8
1231.3
1232.7
1234.t
11.05
10.94
10.60
10.52
16.68
11.5
21.7
30.0
1+0.6
STATISTICS FOR E-WW)
N
101+1
AVG(U) AVG(V)
—2.1.
1.2
AND
FILTERING
LOW PASS
INTERVAL
HOURLY
1+52/32
1
2
3
4
5
11.56
11.60
11.61
1037
1038
1039
101+0
1041.
N—Sty) COMPONENTS
STD(U) 510(V) COV(UV)
63.8
20.2
8.0
-24.3
4.5
VECTOR MEANt SPO
2.1+ GuS,
DIR =
DIRECTIONAL STEADINESS: 32.C 7
CRLTN
—.6762
OEGREES(T)
AXIS IS 114.0 OEGREES(T)
STATISTICS FOR COORDINATES ROTATED 45 DEGREES
(EQUIVALENT ALONGSHORE DIRECTION = 135 DEGREES(TJ)
LEG 1
LOBI VIA
'406
VARIA3LE
N
MEAN
STO
SKEW
KURT
MAX
MIN
5.7
1.1.
4.0
27.7
.1
.1
4.2
20.2
—14.6
8.1
.2
3.3
26.1+
-22.0
.8
—.0
2.4
12.1
8.1,
S (CM/SI
i041
7. 6
U (CM/S)
101+1
—.7
V (CM/S)
T(DEG C)
2.3
1G'+i
50
76 TO 7 P8W 76.
24
406 II AT 1081V1A.
TAPE
452/32
0.1s
0.16
0.1%
0.12
0.10
0.08
0.06
0.04
0.02
0.00
3.9
6.5
9.1
11.?
14.3
16.8
19.4
21.9
24.5
27.0
29.5
SPEED. 01/SEC
0.10
0.09
0.08
0.07
0.05
0.04
0.03
0.02
0.01
0.00
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
340
360
DIRECTION. DECREES TRUE
1000
100
10
0.1
-3
—2.3
—2
—1.5
—1
—0.5
FREQUENCY
0
•
0.5
CYCLES PER DAY
1.5
2
2.3
3
51
30.00
20.00
-
&AiL..
!,.r"t
—20.00 I_i-
30.00
z
C.)
30.00
,
II
—10.00
-30.00
C,
y
10.50
w
I-
9.50
9.50
7.50
MAY
406 N AT LOBIVIA
43.0 OATS STARTING
LEG 1: )4OURLIES,
500 GNT 25 MAR 1976
52
FIRST 5 LINES
25
7G0 25
8u3 25
93C 25
25
LAST
LEG
JEPTH
I
556
OF
3 76
i6
3 76
3
3 76
DATA:
—7.7
4.9
4.3
—6.1
1.9 —6.0
—4.9
2.5
3 76
3.5
INTER44L
TAPE '10
500/37
—7.7
FILTERING
PASS
7.46
1
11.1.
—13.8
—19.8
7.57
7.66
13.6
—24.7
7.79
3
4
8.1C
S
7.55
1036
9.2
—5.3
2
5 LINES OF
7
5 7
7
5
7
5.1 —15.7
76
7.0 —1!J.l
653.6
660.6
2.8
669.9
—.342.3
—3,2.4
7
5
7
5
76
1010
STATISTICS FUR E—W(U) AND N—S(il)
AVG(tJ)
.6
N
13.9
MEAN:
VARtV) 310(U) STO(V) COV(UV)
3.7
5.9
.7
=
CRLTN
—.
3376
JIR = 123
12.7 X
C'1/3,
DIRECTIONAL
PRINCIPAL AXIS 13 1o2.i DEGREES(T)
STATISTICS FOR CCORCINATES ROTATED 45 OEGREES
(EQUIVALENT ALONGSHORE DIRECTION = 135
LOBIVIA
LEG 1
556
1
MAX
uN
22.6
.2
3.3
13.8
—15.3
—.1
4.0
16.3
—21.5
.6
3.3
8.7
6.6
MEAN
STO
SKEW
(CM/S)
5.9
3.8
1.4
U (CM/S)
.2
4.1
(Cti/S)
—.7
5.6
.3
N
V
T(JEç, C)
7.
KURT
hi
C,
hi
hi
hi
hi
hi
0
DENSITY
0
8
C,
a
0
hi
0
a
CO
In 0
0
CO
8
a
0
0
.4
a
0
—
0
0
CO
0
0
0
hi
0
0
a
—
RELRTXVE FREOUENCT
0
0
hi
0
0
a
'4
0
0
a
hi
a
hi
a
a
hi
a
a
hi
hi
0
o
•O
o
0
0
—
0
0
0
w
0
0
a
0
REIRTIVE
0
0
hi
0
0
a
0
p
0
0
a
0
'0
0
0
0-
'a
hi
a
54
20.00
0.00
iii
.
•i •
_&_I_•&_•
&
-Z0.00
20.00
&
r
-
I
6.00
6.00
0
0
I-
7.00
6.00
556 N AT LOBIVIA
43.0 DAYS STARTZNG
LEC t:
HOURLZES
600 6MT 25 MAR
55
STATION
DEPTH
LEG
I
LOW
FIRST E LINES OF OATA*
500 25
3 76
25
70u 25
8u0
3 76
3 76
900 25
3 76
3
—1.0
2.1
2.5
76
IDuG
1200
1300
.'
5 76
6.85
6.63
1
—1.8
—2.1
6.71
3
3.5
—ie.9
6.69
,
—203.0
—206.2
—1293.8
—1334.6
—1312.6
—1323.8
—1337.9
6.52
6.68
6.42
1037
1U38
1039
—1.0
1.1
3.6
2.2
—0.3
S LINES OF DATA
—8.9
5 76 —0.2
7
—3.1 —10.7
7
5 76
7
5 76
—1.7 —8.1
LAST
900
—3.2 —11.2
—208 .1
—i'+.1
—2u9.7
7
VAR(tJ)
AVG(U)
N
—.2
-1.3
VECIOR
1040
6.63
5.8
DIR =
Z
STATISTICS FOR COORDINATES ROTATE.D
= 135
(FIUIVALENT ALONGSHORE
M
KURT
MAX
MIN
MEAN
STO
SKEW
1341
S. 4
3.3
1.0
'
1041
—1.1
4.8
—.7
2.9
11.7
—18.5
.5
8.5
16.3
—13.4
.6
3.6
7.9
5.9
N
U
DEGREES
LEG 1
LO3IVIA
(CM/S)
CRLTN
. 2729
6.7 OEGREES(T)
PRINCIPAL AXIS IS
626
3.5
OEGREES(T)
DIRECTIONAL STFAOI'4ESS* 21+.2
S
1041
COMPONENTS
2.2
1.3 CI'S,
SPO
2
VAR(V) STI(U) STD(V) COV(tJV)
33.7
PASS
k
STATISTICS FOR E—W(U) AND N—S(V)
1C+1
FILTERING
INTERVAL
TAPE NO
b26
V (CM/S)
—.8
C)
6.6
.3
.1
56
626 M AT LORIVIA.
my 76.
24 1118 76 TO 7
TAPE 488/22
J,.tnw
0.12
0.10
0.08
0.06
0.04
0.02
0.00
3.4
S.d
18.5
16.4
14.3
20.7
22.8
SPEED. CM/SEC
0.12
0.10
0.08
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
340
360
DIRECTION • DECREES TRUE
100
10
0.1
-3
—2.5
-2
-1.5
-1
-0.5
rREOUENCT •
0
0.5
CTcLES PER OAT
*
1.5
2
2.5
3
57
20.00
hi.
0.00
-
I
r"r9'
.I
-20.00
20.00
0
•
0.00
—20.00
7.00
0
5.00
IMAY
IAPR
62S '4 AT LO8IVXR
43.4 DAYS STARTING
LEG 1: HOURLIES,
500 GMI 25 MAR 197S
59
JOINT—Il 1976 Installation
ISLAYA I
Posi tion*:
Distance Offshore:
15°OO.O'S, 75°39.O'W
17.0 km
Bottom Depth:
Set:
136 m
1838 GMT 25 March 1976 by R/V ALPHA HELIX
1345 GMT 7 May 1976 by R/V THOMPSON
0200 GMT 26 March to 0500 GMT 7 May
Retrieved:
Longest Data Interval:
Longest Record Length:
42 days, 4 hours
Instrumentation
Accepted
Serial
Depth
Depth
Tape #
25 m
50 m
100 m
41 m
66 m
116 m
682/31
Intended
489/30
686/29
Sampling
Interval
20 mm
30 mm
20 mm
* Navigation: Radar fixes and German chart DHI—721
Measured
Variables
S,o,T,P,C
S,O,T
S,O,T,P,C
60
125
575
500
625
70
75
—75
040
210
280
-70
—040
41 P1 RI I$IRYA.
42.7 0013
1953 25 IVUR
—210
-280
400
500
-550
-420
-490
016 Ii Al
-500
-600
66 N AT ISL.RYR.
42.7 0013 310#TIW
1940 25
76
150.010.
42.7 0015
1957 25
76
61
ION
ISLAYA
'+dJ 26
SJC 26
600 26
5
20u
7
3LC
7
682/3i.
1
LINES OF OATA
S
2CC 26
300 26
LAST
iCC
TAPE .40
DEPTH
LEG
3
7
3
3
3
3
76
76
76
76
7
7
13.814
—32.7
—37.b
—45.1
13.93
—13326.2
—13015.3
15.35
b14.2
81.3
LINES OF DATAI
1.2.8
5 76 12.9
10.9
11.9
5 76
11.8
6
5
Q.9
12.1
5 7
9.6
lu.4
5 76
7
—12.6
16.7
31.8
1€.7 —12.6
15.1 —12.3
15.5 —7.8
16.9 —14.0
17.1 —7.6
HOURLY
—12994.9
—12.8
MEAN
405712
141.998
405586
405948
43.367
43.392
43.457
43.462
43.4414
N—S(V)
10.9
151..3
12.3
—L#9.9
CRITN
—.3729
= 133
20.0 Ci/.S,
SPC
41.932
42.144
'+04257
'+05208
VAR(Va STO(U) 510(V) COV(UV)
11.5.4
'+1.838
141.739
15.48
15546.8
AVGU)
1012
13.98
15.51
FOR E-W(U)
N
114.15
FILTERING
LOW PASS
OHECTIONAL STEAOINESS'
Z
AXIS IS 144.1.
'+5 DEGREES
COORDINATES
STATISTICS
1.35
CEGREES(TI)
(EOIJj'IALENT ALONGSHJRE DIRECTION =
t.EG 1
'+1
VAkIABLE
N
'1
dEAN
STO
SKEW
KURT
lAX
MIN
S
1.012
23.7
10.4
.7
2.8
55.6
3.9
U
1.012
1.8
9.2
.1.
2.8
26.0
—21.4
13.6
—.1
2.7
15.3
—55.4
16.8
13.6
'1
(C 1/5)
T(JEG 1)
1S.1
.7
—.2
2.5
(05Ak.)
4.3.6
.3
1.1
4.2
F
40.3
S
'a
(a
((I
(a
0
a
;-
-
DENSITY
g
0
0
p4
0
0
0
p0
g
0
0
0
M
0
0
0
0
0
0
0
RELATIVE FREOUENCT
0
0
0
0
0
0
(a
-D
'4
0.
'4
C'
a
C'
a
0.
.s
p.,
'4
a
0
'4
'I
0
0
0
0
0
RELATIVE FREQUENCY
0
0
4-
0
'-I
p.,
a
63
30.00
I
10.00
-10.00
-30.00
20.00
0.00
> -40.00
-60.00
17.00
0
0
14.00
23.00
43.00
C
0
43.00
•
I APR
43 N
42.0
MAY
ISLA'rA
STARTINC
LEC 3.
HQURL.lESa
200 GMT 26
1876
64
10 N
ISLAY
TAPE NO
DEPTH
LEG
A
LINES OF DATA:
3 76
8.5 —16.7
3 76
8.7 -16.2
400
7b
7.7
530 26 3 76
9.5 —15.3
6CC 26
3 76
12.6 —14.6
FIRST
I NT ER AL
FILTER ING
HOURLY
LOW PASS
\l
66
I
5
26
300 26
—16.7
—32.8
13.34
17.2
2i+ .9
—t0.3
34.4
—65.6
—80.2
13.43
13.47
13.64
8 .5
.3
47 .0
1
13.39
2
3
4
5
5 LINES OF DATA:
LAST
76
7
5
0
7
5 76
300
7
5
76
5 76
7
5
76
8.0
3.6
11.5
11.4
l31+Q3
i4720.6
13426.9 —14721.6
—14721.1
713.7
13S'9.6
.4
—1.0
11.3
11
•
2.3
4
STATISTICS
N
13.3
1012
1008
15.19
15.11
.0
1009
1010
1011
1012
15.37
15.
E-W(U) AND t4—S(V) COMPONENTS
AVGU) VAR(tJ) VAR(V) 510(U) STO(V) COV(UV) GRLTN
7.3
—14.5
61.5
98.3
9.9
—33.6 -.4324
PRINCIPAL
OEGREES(T)
JLk =
1.9.7 CIfS,
SPC
90.5
DIRECTIONAL
AXIS IS
X
DEGREES(T)
STATISTICS FOR
'.5 DEGREES
ROTATED
(EQUIVALENT ALONGSHOR€ DIRECTIJN
135 QEGREESCTI)
LEG 1
ISLAVA
66
VAPIA3LE
N
S
U (CM/S)
STO
M
SKEW
KURT
MAX
MIN
21.8
.6
2.7
50.1
3.7
—. y
.2
2.5
.1
3.2
12.6
—49.9
2.7
is.a
13.3
MEAN
V .CI/S)
1012
—19.?
.7
C)
1J12
1+.5
.5
—17.0
U
'S
'9
U
2?
'a
p0
N
'A
'9
0
—
0
—
SPECTRAL DENSITY
0
—
0
0
0
0
0
0
0
4.
N
4.
0
0
C4
0
0
'4
00
I,
—
0—
N
P
P
P
4.-
P
0
0,
'A
.4
'I'
'4
'I
a
CA
0
a
Cli
'4
a
0
4.
0
'4
•0
a
4.
a
0
-I
a
.4
CA
'4
4.
Cii
r
4.
0
2
a
0
a
0
a
0
0
RELATIVE FREOUENCY
0
0
2
000000000???
RELATIVE FREQUENCY
66
y
-20.00
'V 'PWV
1•
20_Do
10_DO
-30.0O
-50.00
C,
14.50
0
-p
I-
13.50
2.2.50
IAPR
66 N A7 XSLA'YA
42.0 DAY$ ETARTZNO
IMAY
LEC lx HOUMUES.
zoo OMY 26 MAR 1876
67
STATION
ISLAVA
LEG
DEPTH
1
116
FIRSI S LINES OF OATA:
9.14 —13.1
3 76
200 26
26
9.9 -11.8
3 76
4u0
5u0 26
26
LAST
lOu
5
200
7
7
500
3 76
6.5 —11.1
3 76
3 76
14.2 -15.2
19.3
25.8
29.7
33.9
.3.9 —13.6
LINES OF OATA
5 76
0.2 —13.0
5 76
3.9 —11.6
7
S
7€.
'+.6 —10.9
7
5 76
5 76
5.0 —10.1
7
9.1+
—13.1
—25.0
—36.u
—64.8
5977.6
5981.4 —12151.7
5986.1 —12162.6
5991.1 —12172.7
5996.2
—9.9
STATISTICS FOR E—W(U)
FILTERING
LOW PASS
INTERVAL
HOURLY
TAPE NO
13.19
13.19
13.19
13.21
13.23
1158814
1158100
1156858
1157717
1158693
41.112
41.111
41.115
41.141
14.63
1161481
.42.494
42.1+88
1+1.154
116i5•1+7
42.483
1161383
1162086
1162050
14.6k
14.63
14.63
1+2.510
42.506
N—S(V) COMPONENTS
AVt,(U) AVG(V) VMR(U) VAR(V) STO(U) STO(V) COV(UV) CRLTN
—314.1
—.5680
10.0
6.0
99.3
5.9
36.3
—12.0
N
1j12
j7,4
OIR =
VECTOR MEANS SPO
OIRECTIONAL STEADINESS: 85.5 Z
PRINCIPAL
OEGREES(T)
Is 156.4 DEGREESCI)
STATISTICS FOR COORDINATES ROTATED 45 DEGREES
ALONGSHORE JIRECTION = 135 OEGREEStTI)
LEG I
ISLAVA
116 M
MEAN
STO
SKEW
KURT
MAX
MIN
15.7
8.3
.6
2.7
42.4
1.8
U (CM/S)
—L•3
5.8
.0
2.9
114.1
—22.5
(CM/S)
—12.7
10.1
.2
2.9
—.2
2.3
14.9
13.2
.2
6.2
117.0
115.7
N
S
(CM/S)
1u12
TLDE(, C)
P
(OEAR)
1
1012
116.2
.2
—39.5
68
ISL.AYA.
116 II AT
76 10 7
25
26.
TAPE 686/29
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
5.1
9.1
13.0
16.8
24.4
20.6
28.2
31.9
35.6
39.3
42.9
46.5
SPEED, CM/SEC
0.20
0.18
0.16
0.14
0.12
0.10
Is.
0.08
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
180 200
220
240
260
280
300
320
340
360
DIRECTION, DECREES TRUE
1000
too
10
0.1
—3
—2.5
—2
—1.5
—I
—0.5
0
0.5
CTCLES PER 0441
1
1.5
2
2.5
3
______
69
20.00
3.0.00
-30.00
I.
-
n.
L
H
.t
.
.
-
20.00
x
0.00
—40.00
15.00
14.50
C,
w
13.50
12.50
— 117.00
116.00
9
a. 3.14.00 1.11
liii
1111111
IMAY
IAPR
316 14 AT ISLAYA
42.0 DAYS STARTING
LEG
HOURLIES,
200 GM? 26 MAR 3.B76
71
JOINT—lI 1976 Installation
SOUR I
Position*:
13°55.2'S, 76°29.4'W
Distance Offshore:
10.8 km
Bottom Depth:
Set:
120 m
Retrieved:
1855 GMT 12 May 1976 by R/V THOMPSON
1302 GMT 26 March 1976 by R/V ALPHA HELIX
Longest Data Interval:
2100 GMT 26 March to 1100 GMT 12 May
Longest Record Length:
46 days, 15 hours
Instrumentation
Accepted
Serial
Depth
Depth
Tape #
80 m
100 m
80 m
100 m
453/38
Intended
498/31
Sampling
Measured
Interval
Variables
30 mm
30 mm
* Navigation: radar fixes and German chart DHI-72l.
S,O,T
S,o,T
t25
450
600
125
—125
250
¼
—
—?50
—625
—P00
—750
—1050
50 METERS AT SOUR.
47.2 DAYS STARTING 1404 26 MAR 76.
IIETERS AT SOUR.
4.1 DAYS STARTING 1608 26 MAR ?6.
—
73
TAPE
DEPTH
LEG
I
SOUR
FIRST 5 LINES OF DATA!
6.7 —28.4
210u 26 3 76
INTERVAL
FILTERING
HOURLY
LOW PASS
26
26
1.2 —2e.2
8.9
3.7 —24.0
6.7
7.9
16.9
20.6
—56.6
—31.4
0 27
3 76
3 76
3 76
iOU 27
3 76
4.2 —21.7
24.8
—127.1
LAST
S
LINES OF DATA:
12
12
5 76
5 76
12
12
12
5
76
S
7b
5 7.
12421.8 —26211.6
12437.7 —26255.5
—26fl5.4
12485.9 —26336.1
12495.7
23.1 —36.+
15.9 -43.8
27.0 —40.)
21.2
9.7 —39.3
13.71
13.65
1
2
13.7C
.3
13.67
4
5
14.74
14.76
14.86
1115
1116
1117
1113
1119
STATISTICS FOR E-W(U) AN) N—S(V) COMPONENTS
AVG(U) AVG(\I) VAR(U) VAR(V) 310(U) STO(V) COV(CV) CRLTN
—67.9 —.5456
8.8
14.1
77.5
11.2
N
iliq
DIR = 155 DEGREES(T)
26.1
VECTOR MEAN: $PO =
DIRECTIONAL STEADINESS! 93.5 X
PRINCIPAL AXIS IS
OEGREES(T)
30 DEGREES
COORDINATES ROTATED
STATISTICS
(FQUTVALENT ALONGSHOPE
150 CEGREESCTI)
LEG 1
SOUR
80 M
MAX
3.1
73.9
3.1
23.2
—24.1
—.2
3.0
12.2
—73.8
—.8
3.2
15.7
13.5
MEAN
310
L11
27.9
13.4
U (CM/S)
1119
—2.1
7.0
.3
V
1119
—26..
15.1
.4
S
(CM/S)
C)
1119
MIN
KURT
SKEW
N
74
80 PETERS AT SOUR.
26 IffiR 761012 P811 76.
453138.
TAPE
0.12
0.10
0.08
3-
0.06
0.04
0.02
0.00
8.?
23.2
16.0
30.3
44.1
37.3
50.9
57.5
64.0
70.4
76.?
82.9
SPEED, CD/SEC
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0
20
40
60
80
100
120
140
160
180
200
220
240
260
250
300
320
340
360
DIRECTION • DECREES TRUE
1000
100
10
—3
—2.5
—2
—1.5
—1
—0.8
0
0.5
FREQUENCY, CYCLES PER DAY
1
1.5
2
2.5
3
75
30.00
T
10.00
—10.00
—30.00
20.00
0.00
x
-20.00
—40.00
—60.00
-80.00
16.00
15.50
14.50
C,
w
I-
13.50
I
APR
I MAY
90 M AT SOUR
LEG 1: HOURUES,
46.0 DAYS STARTING 2100 GMT 26 MAR 1976
76
LEG
SOUR
OEPIH
1.
FIRST 5 LINES OF DATAZ
26
27
IOC 27
3 76
3 76
3 76
3
3u0 27
LASt
700
800
903
luuO
1100
5
12
12
12
12
12
TAPE
Tb
3.7
1.2
0.2
—1.b
3 76
3.7
6.2
LOW PASS
13.56
13.59
1
2
3
—5o.k
—71.2
13.59
13.60
'.
—20581.7
—20613.9
6866.8 —20649.3
14.41.
11+.51
1113
tc.8
5.2
—14.6
—29.1
—14.8
3.6
4.3
LINES OF 0414:
6.u —25.1
5 76
5 76
5.5 —32.2
5 76 15.3 —35.4
5 7. 17.9 37.5
5 76
16.7 —32.5
AVG(tJ)
N
FILTER ING
4.9
1+1.9
1L4..b2
6901.4 —213719.1+
AVG(V) VAR(U) VAR(V)
—18.S
158.7
VECTOR MEANZ SPO =
19.6
DIRECTIONAL
14.61
5
111'.
1115
1116
1117
COMPONENTS
STATISTICS FOR E—W(U) ANJ
1117
INTERVAL
HOURLY
CRLTN
510(U) STO(V)
o.7
C1I3,
12.6
—1+1.2
—.4905
DIR = 162 OEGREES(T)
92.0 Z
F-RINCIPAL AXIS IS 162.1 OEGREES(T)
STATISTICS
COORDINATES ROTATED 33 DEGREES
(EDUIVALENT ALONGSHORE DIRECTION = 15C )EGREES(T])
LEG 1
103
N
IJ
(CM/S)
1117
(CM/S)
1117
'I
1117
T(DEG C)
1117
21.2
M
STO
SKEW
KURT
MAX
MIN
11.6
1.2
4.9
70.0
1.3
3.5
19.2
—22.4
—
4.4
19.6
—69.i
—.5
2.5
15.5
13.4
6.1
—19.2
12.9
.'+
77
100 METERSATSOUR.
26 MAR 76 TO 12 MAT 76. TAPE 498/31.
IN
0.12
0.10
0.08
0.06
0.04
0.02
0.00
8.2
21.9
15.1
28.6
35.2
41.7
48.1
54.4
60.6
66.?
72.?
78.5
SPEED. CA/SEC
0.24
0.22
0.20
0.18
0.16
0.14
0.12
0.08
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
180
200 220
240
260
280
300 320
340
360
DIRECT IDA, DECREES TRUE
1000
100
10
0.1
—3
-2.5
-2
-1.5
-1
-0.5
0
0.5
FREQUENCI • CYCLES PER DAY
1
1.5
2
2.5
3
78
20.00
3.0.00
.
Ikiia
-10.00
-30.00
20.00
3.0.00
—10.00
-30.00
> —50.00
—70.00
15.50
C,
14.50
U
Ui
0
3.2.50
I III
1111111111111111 iii iti
MAY
1 APR
100 14 AT SOUR
LEG 3.:
HOURI.IES,
46.0 DAYS STARTING 2300 6147 26 MAR 1376
79
INSTALLATIONS:
Leg II
81
JOINT—lI 1976 Installation
MILA II
Position*:
15°07.2'S, 75°30.5'W
Distance Offshore:
12.0 km
Bottom Depth:
Set:
128 m
1416 GMT 10 May 1976 by R/V THOMPSON
Retrieved:
1353 GMT 27 July 1976 by R/V EASTWARD
Longest Record Length:
81 days, 14 hours
Longest Data Interval:
2100 GMT 10 May to 0600 GMT 27 July
Instrumentation
Accepted
Serial
Depth
Depth
Tape #
0m
25 m
50 m
75 m
100 m
0 in
33 m
62 in
84 m
109 in
0124/12
682/32
749/24
489/31
686/30
Intended
Sampling
Interval
20 mm
20 mm
20 mm
30 mm
20 mm
Measured
Variables
Sw,Ow,Ta,T
S,o,T,P,C
S,O,T,P,C
S,e,T
S,e,T,P,C
Coments:
MILA II was equipped with a meteorological buoy (0124) which apparently
tore loose from its mooring during a period of strong winds. A local
fisherman discovered the buoy on the beach just south of the Ica River
mouth, and personnel from the Pisco fisheries (IMARPE) laboratory
recovered it. The data from the buoy orientation sensor clearly
indicated when the buoy began to drift, therefore 37 days of data
were salvaged. The mean direction for the MILA II wind record was more
onshore than for the shorter MILA I record, but the vector mean directions
are similar for the several-day periods before and after the buoy was
serviced (see the PVDts). The MILA II water temperature (3 m) did not
agree with the pre-calibration and is about 1.1°C cooler than the
hydrographic (CTD) observations at the beginning, and about 1.9°C
cooler at the end of the record. The data were not corrected. The CTD
values are included on the time series plot for comparison.
* Navigation: Satellite navigator. The position of the MILA II
meteorological buoy was estimated to be within ½ n.m. of the subsurface
array.
82
RT MILR
2.
76.
76 — 16
10
TAPE 0124/12.
0.20
0.18
0.16
0.14
0.12
!
E
0.04
0.02
0.00
0
1
3
2
5
4
6
7
8
9
10
11
12
14
15
16
320
340
360
91'€ED.
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
180
200
220
OIRECTtON, OEGREE3 TRUE
240
260 280
300
83
20000
17300
15000
12500
10000
7500
5000
2500
—12500
—10000
—7500
—5000
2500
-2500
-2500
AT MILA 2.
10 MAY 76 — 16
TAPE 0124/12.
84
STATION
LEG
MILA
DEPTH
?
0124/12
FIRST S LINES OF DATA:
2200 10 5 76 —4.3
7.2
5 76 —4.1
2300 tO
7.1
5 76
0 11
5.1
100 11 5
—5.1
5.3
230 ii
5 7c
—3.9
5.7
LAST
1130
1200
1300
1400
1530
.2
—8.4
LINES DF DATA:
6 76.
—4.0
6 76
—2.5
14.1
6 76 —3.6
3.1+
4•7
6 76
6
7.2
5
16
16
16
16
16
INTERVAL
H3UFLY
TAPE
0
114.3
19.'+
FILTERING
LOW PASS
17.5€
17.46
15.51+
15.1+9
1
17.1+0
15.49
3
2
—19.9
—23.7
24.7
30.4
17.28
17.24
15.1+5
5
—2776.4
—2775.9
—2782.5
5261.1
52o5.2
5268.6
5273.3
5280.o
15.83
15.36
15.94
16.00
16.12
13.80
13.80
13.80
13.00
13.85
878
879
880
881
—2785.5
STATISTICS FOR E—W(U) AND N—Sly) COMPONENTS
AVG(U) AVG(V)
—3.2
6.0
N
882
VCC'OF..
i4..3
.5
313(U) STO(V) COV(UV)
2.1
2.1
—1.2
—.2730
SPC =
6..8 uS,
DIR = —27 DEGREES(1)
DIRECTIONAL ST5AOINESS*
X
PRINCIPAL AXIS IS 137.0 DEGREES(T)
COIROINATES ROTATED
= 135
At.ONGSHOP!
'+5 DEGREES
11)
LEG 2
MILA
OM
N
S
U (M/S)
V
382
* Post-
uN
13.3
.9
STJ
SKEW
7,fl
2.3
—.2
3.3
.3
2.3
—.1
2.3
12.9
-1.3
15.6
2.6
17.3
13.0
17.2
2.7
13.7
15.7
2.0
(M/S)
TA
MAX
MEAN
,.',
.,
,
and pre-calibrations do not agree and data do not agree with
See coments on installation sumary and in Appendix 2.
CTD values are plotted with the time series for comparison.
do casts.
85
6.00
—'
I
4.00
U)
S..
—.
0.00
—4.00
14.00
10.00
6.00
>
2.00
•I.
—2.00
II
III
17.50
16.50
15.50
0
14.50
CTD TEMPERATURE OBS
13.50
12.50
15.00
-
18.00
(p
9
17.00
16.00
15.00
JUN
LEG 2:
O M AT MILA
DAYS STARTING 2200 CMI 10 MAY 1976
125
-175
—125
33 11 AT MILA
175
-250
-350
—375
-525
II.
77.9 0015 S1ARTING *453 10 ARl 76
62 II AT NIL
II.
350
77.9 OATS STARTING 1439 ID ART 76
co
100
175
&
-300
-?00
$4 1* AT IIILA II.
-400
77.9 OATS STARTING 1510 *0 ART 76
109 N AT NILA
II.
77.9 OATS STARTING 1427 *0 ART 76
87
STATION
BEPIW
LEG
MILE
TAPE
69,2/32
33
2
FIRST 5 LINES OF OATA:
2103 lu
22u8 lu
5 76
5 76
9.t+
23u3
5
76
11.3
5
76
0 11
100 11
LAST 5
2J3 27
300 27
27
27
27
5 7b
11.8
11.8
7.6
7.u
13.1
17.0
9.4
20.1
11.8
23.6
39.8
46.0
36.7
53.1
72.1
15.83
15.35
15.89
15.87
15.86
LOW
PASS
338193
43.774
338057
338178
337+87
333599
43.850
43.818
43.831
LINES OF BAlM
7 76 —19.9
7 76 —19.2
7 76 -20.7
7
—15.3
7 76 —14.2
9.1
12.9
13.9
16.3
15.3
AVG(U)
14842.9
14823.6
—4276.3
1'+8u3.0
—4249.5
—4233.2
—4217.4
—4263.L.
14737.6
14773.4
STATISTICS
N
dOURLY
E-W(U
VAR(U)
VECTOR MEANS
VAR(V)
3.32026
311995
329905
329500
510(U) STD(V) CO'I(UV)
19.3
8.3 CM/S,
=
312668
43.7C3
43.719
43.727
ANO N—S(V) COMPONENTS
—2.3
1.
16.71
16.75
16.7€
16.75
16.75
CRLTN
—.7677
19.6
hR = 136 OEGREES(T)
OIRECTIUNAL STEAOHESS' 31.3
PRINCIPAL AXIS IS
7.
DEGREES(T)
FOR COOPUINATES R3TATEB 45 BEGREES
= 135
LEG 2
MI LM
.33
N
S
MEAN
SIB
SKEW
25.'+
12.2
.9
U
9.5
,,
V
C)
c
i
1853
KURT
MAX
M IN
73.7
2.1
2.7
32.7
—28.4
2.1
59.C
—71.6
16.7
.9
..4
3.3
19.2
33.6
.5
1.5
4.9
35.9
32.9
88
33
A AT lILA II.
?4 TO V JIL
10
TAPE 682/32
0.12
0.10
d
0.04
0.02
0.00
8.4
0
22.5
15.5
42.9
36.2
29.4
49.5
55.9
62.3
68.5
74.7
80.7
SPEED, CA/SEC
0.12
0.10
0.08
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
180 200
220
240
260
280
300
320
340
360
DIRECTION, DECREES TRUE
10000
1000
100
10
—3
—2.5
-2
—1.5
—1
-0.5
0
0.5
FREOUENCT. CYCLES PER DAT
1.5
2
2.5
3
89
40.00
30.00
10.00
—10.00
—30.00
60.00
40.00
20.00
I
0.00
—20.00
—40.00
-60.00
-60.08
13.50
18.50
17.50
0
0
16.50
I15.50
14.50
13.50
36.00
35.00
a
33.00
31.00
IJUL
IJUN
33 M AT MXLA
77.0
LEG 2:
HOURLXES
2100 ONT 10 MAY 1976
90
LEG
?IILA
62
2
LINES OF DATA:
5 76
12.6
5 76
10.8
15.i)
23i0 1L
5 76
7.8
0 11
5
6.b
17.1
11
5 76
6.1
2u.9
FIRST
TA°E NO
I NI E R VA L
71+9/2..
HOURLY
FILTERING
LOW PASS
5
i
LINES OF DATAX
7 76 —2.8
10.5
27
7 76
—2.7 11.1+
27
7 76
—4.6 11.9
15.28
15.29
617408
617397
617 390
43.2Th
33.1
15.3C
15.25
15.22
617457
43.235
23367.8 —12553.3
16.62
16.6C
16.61
16.4t
16.17
618028
616872
615925
615669
1+4.711+
21365.1 —1281+1.9
2336u.5
2.3361.3 —12815.2
12.6
23.4
31.2
37.8
16.0
31.0
45.1
1+3.9
02.2
43.310
43.323
'3.334
5
27
27
7
6
7
76
u.S
4.8
2336o.1 —12797.7
17.5
STATISTICS
E—W(U)
AVG(U) AVb(V)
12.6
—6.9
251.5
N
44.695
1+4.726
4+ .5 16
611+697
AN) N—SU) COMPONENTS
VAR(V) STO((J) STO(V) COV(UV)
CRLTN
316.1
17.8 —229.9 —.8156
VECTOR MEAN: 3P3 =
CIR = 119 DEGREES(T)
1'.3
JIRECTIONAL STEADINESS: 58.0 Z
AXIS IS 119.3 JEGREESW
(E)UIVALENI
CC1ROINATES ROTATED
DEGREES
JIRECTION = 135 OEGREES(TJ)
LEG 2
1
VARIABLE
S
N
(CM/s)
U (CM /)
MEAN
SID
24.7
12.7
1853
SKEW
KURT
MAX
MIN
2.8
67.1
.9
7.3
.1
2.6
23.5
—18.5
—13.8
22 7
.1
2.0
Ls0.3
—65.1
T(1E(,
ii. 9
.7
2.1.
17.7
1'..1
P
61.9
5.5
63.6
61.1
V
1.6
91
62 II AT fILM it.
to lifT
76.
76 TO 27
TAPE
719/24
0.12
0.10
0.06
0.06
0.04
0.02
0.00
7.8
20.6
14.2
26.9
33.1
39.3
45.3
51.2
57.1
62.9
68.5
74.1
320 340
360
SPEED. CM/SEC
0.18
0.16
0.14
0.12
0.02
0.00
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
DIRECTION. DECREES TRUE
10000
1000
I-
100
10
-3
-2.5
-2
-1.5
-1
-0.5
0
•
0.5
CTC*13 PER OAT
1
1.5
2
2.5
3
30.00
20.00
0.00•
1' '
•11
1?
-
—20.00
50.00
30.00
10.00
—10.00
>
—30.00
—50.00
—70.00
18.00
17.50
N)
16.50
0
0
15.50
I.-
14.50
13.50
64.00
I
U.
62.00
60.00
IJUN
62 P4 AT MILA
LEG
HOURLIES,
77.0 OAYS STARTING 2100 CMI 10 MAY 1976
IJUL
93
TAPE
DEPTH
LEG
INTERVAL
HOURLY
NO
MILA
FIRST
LINES OF
5 76
23C0 1C
5
12.9
C)
5 76
11
5
Tb
10.b
11
5 76 12.1
11
S
1?
.t.
13.9
26.8
37.6
5.3
5.5
J.c_
9.6
14.35
5.3
11.6
1
.14.87
2
3
I
IA+.95
'p3.3
6G.4
LINES OF OATAI
27
7 76
12.0
7 76 —2.3
'uu 27
LAST
FILTERING
LOW PASS
14.96
4
5
15.35
1854
16.36
1855
15.76
15.63
1857
5
27
7
730 27
7
7
76
7€
—7.0
—2.6
230C0.3 —17371.8
22952.1 —17335.2
22979.5 —17324.0
11.6
11.2
1.858
FJR £—W(U) AN') N—StV)
AVG(U)
12.L
N
VAR(V)
237.5
15.5
V6C)P MEAN: SPO =
3T')(U) STO(V) COV(UV)
14.2
15.4 —166.3
DIR
C'1/i,
=
66.3
DIRECTIONAL
CRLTN
—. 7611
127 OEGREES(T)
Y.
AXIS IS 138.1 JEGREES(T)
SIA'ISTICS
COORDINATES ROTATED
+5 DEGREES
135 ')EGREESCT3)
DIRECTION
LEG 2
MILA
8t+
STD
N
23.+
S
'I
11.5
.7
o (CM/S)
1853
2.2
V
1q58
—15.3
19.6
.2
i.S.3
.6
.3
t)
2.7
62.5
1.7
25.u
—21.8
30.7
2.6
16.9
13.9
94
84
II AT NILA II.
10 hAY 76 TO 27 JUL 76.
TAPE 489/31
0.12
0.10
0.08
0.06
0.04
0.02
0.00
13.4
19.4
25.3
31.1
36.9
42.5
48.1
53.6
59.1
280
300 320
64.4
69.7
SPEED. CM/SEC
0.22
0.20
0.18
0.16
1
0.14
0.12
0.10
I
0.08
0.06
0.04
0.02
0.00
0
20
40
60
00
100
120
140
160
180
200 220
240
260
340 360
DIRECTION. DECOCES TRIE
10000
1000
100
10
-3
-2.5
-2
-1.5
-1
-0.5
FREOUENCY.
0
CYCLES
0.5
PER OPT
1.5
2
2.5
3
30.00
10.00 -10.00
-
..
ILL
"r
—v!Fiw'I.rr vrr W -
-
—30.00
10.00
—10.00
-30.00
-50.00
—70.00
17.00
16.00
10.00
14.00
I
I
JUN
I
LEO 2* HOURLIES,
64 14 AT 14ILA
77.0 DAYS STARTINO 2200 ONT 10 MAY 1976
JUL
96
STATION
MILA
LEG
DE?Tt-4
2
109
FIRST 5 LINES OF DATA:
2130 10
5 76
2G.6 —12.9
2200
5 76
20.5 —9.5
S 76 19.6
—6.5
0 11
TAPE NO
20.6
1.1.1
60.7
7E
20.'+
—.3
7€
la.8
—2.7
—32.1
—34.9
lINES OF DATAt
7 76
3.5
300 27 7 76
—5.1
27 7 7€
4.le
503 27 7 76
2.7 —4.1
27
7 76
'+.3
3.2
12515.3
12516.2 —13u89.6
10.0 11
LAST
5
FILTERING
LOW PASS
HOURLY
14.53
14.53
14.5C
1094930
42.430
14.41.
1095088
42.331.
42.1.32
14.37
42.275
5
27
13u
12519.j
14.82
14.97
14.99
1097600
1097600
1097600
2.1.65
42.463
42.602
1097680
'+2.629
STATISTICS FJR E-W(U) ANI
AVGCI)
N
13J.9
VAR(V
lu.3
510(v) COV(UV)
12.0
'91.4
.75o1
MEAN: SPO
9.3 C'1/3,
= 136
UIRECTIONAL STEADINESS: 61.C
AXIS IS 11+1.7 OEGREES(T)
STATISTICS FOR COJRUINATES ROTATED '+5 DEGREES
DIRECTION = 135 JFGREES(TJ)
LEG 2
M
109
VARIA3LF
N
ST)
16.)
S
U (CM/S)
(CM/S
T(lEr
i3Ei9
—.2
9.3
5.6
—9.7
14.6
.6
C
jjg,q
.1
'I
SKEW
—.1
.1
KURT
MAX
3.6
51.7
2.9
16.5
—19.3
2.6
32.2
—51.3
3.0
16.6
13.2
5.6
MIN
97
109
to nay
II AT IIILR ix.
JUL 76.
TAPE 606/30
0.12
0.10
0.00
0.06
0.04
0.02
0.00
6.5
11.?
21.9
16.8
26.9
31.9
36.0
41.7
46.5
51.2
55.9
SPEED, CM/SEC
0.16
0.14
0.12
3-
0.10
Iii
0
a
3-
0.08
0.06
-J
'Ii
0.04
0.02
0.00
0
20
40
60
00
100
120
140
160
180
200 220
240
260
200 300
320 340 360
DIRECTION, DECREES TRUE
1000
100
z
10
0.1
—3
-2.5
-2
—1.5
—1
—0.5
0
0.5
FREOUENCT, CICLES PER OIlY
1.5
2
2,5
3
20.00
0.00
r
- .1L.iL AL
'ywiTu
-JJLZ'i&
.
9
'r
40.00
20.00
0.00
—20.00
>
—40.00
—60.00
17.00
16.60
a
15.50
(p
14.60
13.50
_n
111.00
a. 108.00
IJUN
109 14 AT MILA
IJUL
LEQ 2* HOURLXES1
77.0 OAY8 STARTXN6 2100 CMI 10 14A'r 1978
99
JOINT—Il 1976 Installation
LAGARTA II
Posi tion*:
Distance Offshore:
15°08.7'S, 75°39.5'W
Bottom Depth:
Set:
465 m
2235 GMT 9 May 1976 by R/V THOMPSON
Retrieved:
27.3 km
Longest Data Interval:
1334 GMT 31 July 1976 by R/V EASTWARD
0600 GMT 10 May to 0500 GMT 31 July
Longest Record Length:
82 days, 0 hours
Instrumentation
Intended
Accepted
Serial
Depth
Depth
Tape #
100 m
200 m
300 m
400 m
115 m
212 m
312 m
412 m
684/29
495/34
452/33
488/24
* Navigation: Satellite navigator
Sampling
Interval
20 mm
30 mm
30 mm
30 mm
Measured
Variables
S,O,T,P,C
S,o,T,P
S,e,T
S,o,T
200
125
800
1000
—125
500
625
-600
—3,5
115 11 AT LACARTA.
82.5 DAYS STARTING 2355 9
SlAY
-J
76
70
212 11 AT LACARTA.
-?0
280
350
00
82.5 DAYS STARTING 2329 9 SlAY 76
420
—45
312 II AT tACARTA.
82.5 DAYS STARTING 2323 P
76
412 SI AT LAGARTA.
15
82.5
DAYS
STARTING 23299
76
101
LEG
LAG ARIA
TAPE
INTERVAL
115
2
F400RLV
FILTERING
LOW PASS
FIRST 5 LINES OF DATA:
60ü IC
5 76
31.2
7.U
5 76
5.6
5 76 36.u
3.3
90u 10
5 76
36.9
5.9
5
1000 10
35.2
8.2
6L+.!+
12.7
100.4
137.2
172.4
15.9
21.8
30.1
14.61+
14.73
14.76
1154792
1158651
1164661
1163617
LAST 5 LINES OF DATA:
7 76 32.1 —37.3
100 31
200 31
7 76 39.1 —35.4
7 76
35.9 —37.2
7 76 38.9 —34.8
31
E?GC 31
7 76 41.2 -35.5
28871.6
23910.7
28946.7
28985.6
29026.7
—16242.6
—16273.1
—16315.3
—16350.1
—16385.7
15.60
14.81
14.51
15.07
15.42
1206600
1210260
1209325
1215072
1209471
31.2
7.0
STATISTICS FOR E—W(U)
14.75
14.77
1+2.796
1+2.783
42.657
42.744
42.779
43.500
42.722
1+2.408
42.998
43.361
N—S(V) COMPONENTS
AVG(V) VAR(U) VAR(V) STD(U) STO(V) COV(UV) CRLTN
22+.6 233.3
15.C
15.3 —172.3
—.7526
N
1968
VECTOR
16.9 Cl/S,
=
DIR
= 119 OEGREES(T)
71.7
PRINCIPAL AXIS IS 135.7 JEGREES(T)
sTATIsTICs
COORDINATES ROTATED 45 DEGREES
fEQtJIVALENT ALONGSHORE OIR€CTION = 135 OEGREESCTI)
LAGARTA
115
VARILE
S
(CM/S)
U
.V
(CM/S)
(DEAR)
LEG 2
MEAN
STO
SKEW
KURT
MAX
tIIN
1968
23.6
13.7
.5
2.5
70.1
.2
1968
4.5
7.5
.9
5.3
20.0
.4
3.3
41.3
—70.1
1 +. 6
.5
—.1
2.7
16.1
13.3
115.9
2.0
5.0
37.4
136.7
114.9
N
1963
1968
—18.9
102
115 II AT
9
TO 31 JIL 36.
TRPZ 684/29
0.09
0.08
0.0?
0.06
0.05
0.04
0.03
0.02
0.01
0.00
0
8.4
15.5
22.5
29.4
36.2
42,9
49.5
55.9
62.3
68.5
?4.?
SPEED. Eli/SEC
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
100
20Q
DIRECTI06. DECREES
220
240
260
280
300
320
340
360
TRUE
10000
1000
3-
100
10
0.1
—3
—2.5
-2
—1.0
—1
—0.5
FREQUENCY •
0
0.5
CTCIIS PER SliT
1
1.5
2
2.5
3
103
50.00
40.00
20.00
> —40.00
-80.00
-80.00
1E.50
15.50
C,
w
14.50
0
I-
12.50
137.00
135.00
129.00
1.27.00
C
125.00
123.00
121.00
119.00
117.00
115.00
113.00
IJUL
IJUN
115 M AT LAGARTA
82 DAYS STARTING
LEG 2
600 GMT
HOURLES,
ID MAY1 1976
104
STATION
LAGART4
FIRST 5 LINES
IC
it
830
900 10
1J00 10
LAST
5
S
5
5
5
76
76
76
76
76
LEG
DEPTH
2
212
495/34
HOURLY
LOW PASS
OF
2.2
3.1
—v.6
4.+
—..+
8.2
10.3
b.2
—3.6
LINES OF DATA:
7 7e
26.3 —22.2
200
7 76 24.9 —22.5
31
7 76
25.3
31
7 76 24.5 —21.5
31
7 76 21.1 —24.5
2.2
5.3
9.7
17.9
28.3
—0.6
—'.7
—7.2
—13.3
—17.3
12.85
12.87
12.94
12.98
13.OC
2135386
2135037
2135509
2137721
213624k
5
1.77
2172011
2177465
2179396
2182722
1964
1965
1966
1967
1
2
3
4
5
31
15051.3
15076.2
13.71
13.51+
13.58
STATISTICS FOR E—W(U) AND N—S(V) COMPONENTS
AVG(U)
N
7.7
1
513(U) STO(V) COV(UV)
VAR(lJ)
—'+.9
123.9
VECTOR 'lEAN:
DIRECTIONAL
52.0
9.3
11.1.
7.2
—58.7
CRLTN
—.7315
DIR = 122 DEGREES(T)
65.7 Z
CM/S,
PRINCIPAL AXIS IS 119.3 OEGREES(T)
STATIsTICS
COORDINATES ROTATED 45 DEGREES
(EQUIVALENT ALONGSHORE DIRECTION
135
LAGARTA
212
N
LEG 2
'1
MEAN
STO
SKEW
KURT
MAX
tlIN
(CM/S)
163
13.9
8.3
.9
3.2
U (CM/S)
1369
2.1
5."
.1
3.3
22.9
—18.0
V (CM/S
1969
—8.9
12.1
.3
3.0
28.?
—'+2.6
T(DEG C)
1q68
12.9
.4
.+
4.3
S
1968
1.6
.3
11.6
229.9
212.3
105
212 11 AT LAC,PRTA
TV'E 495/34
76 10 31 JUL 76.
9
,LRErVI
0.09
0.08
0.07
0.06
0.03
0.02
0.01
0.00
10.0
5.6
0
14.3
31.1
27.0
22.8
18.5
35.2
39.3
43.3
SPEED. Cr1/SEC
0.18
0.16
0.14
0.12
0.10
0.08
I-C
ii
C
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
340
360
DIRECTION. DECREES TRUE
1000
100
10
I!
0.1
—3
—2.5
—2
-1.5
—1
—0.5
0
0.5
FREOUENCT, CYCLES PER OAT
1
1.5
2
2.5
3
106
30.00
20.00
a
v-VT. V
•
I.
I
'
1
- -v
—20.00
30.00
—
10.00
In
—10.00
> -30.00
—50.00
14.50
14.00
(I
13.00
w
II
0
12.00
11.00
230.00
225.00
227.00
225.00
223.00
221.00
0.
219.00
217.00
215.00
213.00
211.00
IJUL
IJUN
212 P4 AT LAGARTA
92.0 OATS STARTING
LEG 2:
600 GP47 10 MAY 1976
107
LEG
312
LAGARTA
7.
5
76
5
7b
5 76
10
1GGO
5
5 7.
IL
31
LOW PASS
—6.5
15.6
'-5.1
31.6
•
—5.6
1
2C • 7
'-9.
MVG(U)
'.1
—2.2
91.7
.6
—4273.0
—427 2
12.22
12.06
7
.4
91.16
912b .9
91i9
-6.9
'7
12.15
12.18
12.19
I
20.3 —11.3
12.16
—11.6
—17.2
—26.8
—38.1
•
I
2
3
4
5
12.2k
11.97
12.30
—4285.6
.8
17
.i3
.1.
1964
1965
1966
1967
—.
F—W(U) A'l) N—S(V) COMPONENTS
STMTISTICS
N
FILTERING
HOURLY
16.
LuST 5 LINES OF OATA
106 31 7 76 13.3 —6. 1
7 76 10 • U —5.2
200 31
7 76 IC • 2
31
_.J. 0
12 • 9
7 76
333£
INTERVAL
'+52/33
OF OATA
FIRST S LI NE
9u4J
TAPE NO
'1AR(U) VAR(V) 570(0) STO(V) COV(UV) CRLTN
—34.2 —.6734
25.L+
10.1
5.1
MEANI 5P)
DIRECTIONAL
C'4/3,
= 115 OEGREES(T)
50.4 7.
IS jjo.q
PRINCIPAL
COORDINATES ROTATED
45 DEGREES
ION = 135 DEGREESCI))
LEG 2
LAGARTA
312
MAX
1.3
3.7
41.3
5.4
.3
3.0
21.1
-.8
9.9
—.2
2.8
21.8
—37.1
11.7
.+
—.1
3.3
13.0
10.3
STU
(CM!..,)
1J.2
7.0
U (CM/S)
1.7
V (CM/S)
S
c)
1Q68
MIN
KURT
rIEAN
N
'1
108
312 tl RT
76 10 31 AL 74. TRPE 452/33
P
JMEAN
0.12
0.10
0.0$
0
z
0.06
0.04
0.02
0.00
5.2
0
13.0
9.1
16.8
24.5
20.7
28.2
35.6
31.9
39.3
42.9
4d.5
SPEED. Cf/SEC
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
0
20
40
40
80
100
120
140
180
160
200
220
240
260
280
300
320
340
360
DIRECTION. DECREES
1000
100
I-
I4,
z'a
0
10
U
0.1
—3
—2.5
-2
—1.5
—i
—0.5
FREQUENCY
0
•
0.5
CTCLE3 PER DRY
1.5
2
2.S
3
U)
30.00
20.00
xC)
0.00
Li,
D -20.00
Ai.
1'!!
30.00
20.00
x0
0.00
—20.00
—40.00
0
C,
U
a
I-
IJUN
312 N AT LAGARTA
82.0 DAYS STARTING
IJUL
LEG 2: HOURLIES,
600 GMT 10 MAY 1976
110
STATION
LAGARTA
FIRST 5
600
700 10
OF
5 76
5 76
10
5 7b
5 76
5 76
LAST
S
100 31
200 31
31
31
500 31.
412
2
90C 10
1080 1L
DEPTH
LEG
—3.5
—3.7
—3.6
—3.U
—0.1
6.2
0.5
—0.3
—3.2
LINES OF DATA:
3.5 —6.5
7
6
—2.7
7 76
7 76
).6
0.9
1.1.
7 '6
—1.9
1.1
7 76 —2.7
TAPE NO
INTERVAL
L+88,'2L+
HOURLY
9.7
lu.2
10.64
10.4
10.61
9.9
10.62
6.7
10.73
5
10.66
lu.23
1964
—482.8
—481.7
9.97
1967
—'+83.5
10.07
1968
6.2
—3.5
—7.2
—10.8
—13.8
—13.9
—348.6
—345.2
—L+83.+
—346.2
—349.0
FILTERING
LOW PASS
1
2
3
1965
1966
STATISTICS FOR E—W(U) AN) N—S(V) COMPONENTS
AVG(U)
—.2
N
44R(U)
—.'
31.7
VAR(\I)
21.2
CRLTN
STJ(U) STO(V) COV(UV)
—17.9
—.6907
4.6
5.6
VECTJP MEAN:
.3 GuS, !)IR = 216 OEGRE€S(T)
+.9
DIRECTIONAL STEADINESS:
7.
IS 126.8 OEGREES(T)
PRINCIPAL
STATISTICS
COORDINATES ROTATED
(EOUIVALENT ALONGSHORE
LAGARTA
N
S
(N!/S)
'+5 DEGREES
= 135 JEGREES(TJ)
LEG 2
MEAN
STD
SKEW
6. 2
3.8
1.1
—.
U
1968
—.3
2.9
V (CM/S)
1968
—.0
b.7
T(DEG C)
1968
9.9
.7
KURT
MAX
uN
21.9
.1
8
3.3
9.5
—12.1
.2
3.0
21.1
—20.1
3.5
12.3
8.1
111
9 AR'! 76 TO 31 JUL. 76.
412 II (IT LAGARTA.
TAPE
488/24
J,FICAN
0.10
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
3.4
7.8
5.6
12.1
10.0
14.3
16,4
200 220
210
18.5
20.7
22.8
24.9
320 340
360
SPEED. Gil/SEC
0.07
0.06
0.05
w
0.04
II.
'U
0.03
0.02
0.01
0.00
O
20
40
60
80
100
120
j4•J
150
180
260
280 300
DIRECTION. DEGREES TRUE
— 100
to
'U
C
0.1
—3
—2.5
—2
—1.5
—l
—0.5
0
0.5
FREQUENCY. CYCLES PER DAY
1.5
2
2.5
3
p.
0
w
C,
0
>
I
9.50
10.50
11.50
12.50
—30.00
-10.00
10.00
30.00 T
— —20.00
0
10.00
0.00
__________________
•1.I.
-
-
.
"rp
'
412 14 AT LAGARTA
92.0 DAYS STARTING
JUN
--Tv--.
.
-
•
LJ
'- ii'j.
LEG 2: HOURLIES,
600 GNT 10 MAY 1976
-
- .1.1.1.
r
-
-
...
I •U•"
-
-
-i
113
JOINT—lI 1976 Installation
VUCA II
Posi tion*:
Distance Offshore:
12°04.7'S, 77°21.7'W
12.2 km (from San Lorenzo Island)
Bottom Depth:
Set:
Retrieved:
Longest Data Interval:
120 m
1311 GMT 13 May 1976 by R/V THOMPSON
1500 GMT 2 August 1976 by R/V EASTWARD
2000 GMT 13 May to 0800 GMT 2 August
Longest Record Length:
80 days,
13 hours
Instrumentation
Accepted
Serial
Depth
Depth
Tape #
80 m
100 m
80 m
100 m
921/3
442/29
Intended
Sampling
Interval
20 mm
30 mm
Measured
Variables
S,O,T,P
S,O,T
Corrrnents:
No good direction data were recorded by current meter 442 (100 m)
prior to 2233 GMT, 28 June. The filtered hourly current data covers
the interval from 0433 GMT, 29 June through 0833 GMT, 2 August;
temperature data is available for the entire mooring period.
* Navigation: radar fixes and U.S. chart H.0. 22173 (Callao and approaches).
150
300
40
—40
450
600
80
-J
-750
-900
—280
100
AT YUCA.
34.7 DAYS STARTING 2233 28 JUN 'o
80 ii AT YUCA.
81.0 DAYS STARTING 1342 13 MAY 76
115
STATION
IUCA
FIRST
5
13
13
13
2
5
5
76
7
5 76
5
5ü3
2
2
8k..
LOW
—21.7
—41.3
5.9
17.8
3*.b
5.9 —21.7
11.8 —19.5
16,8 —17.9
799706
803653
16.65
16.6C
1
2
3
16.62
16.6k
801257
80132.3
4
5
17167.1 —25375.2
17189.9 —25400.2
16.45
16.31
332311
1929
1722'+.9
16.26
502839
1932
1933
—82.1
5.1 —23.9
LINES OF )ATAI
8 76 21.9 —2€.3
8 76 22.8
PASS
831.437
7.
5 76
LAST
q21/3
LINE3 OF JATA:
5
3
FILTERING
INTERVAL
TAPE NO
CEPTH
LEG
8
2
8
76
14.2 —24.8
5.9 —24.7
17230.9
STATISTICS FOR E—W(U) AN) '4—3(V) COMPCNENTS
AVG(U) AVGU)
N
-13.'
VAR(V) 310(U) STO(V) COV(UV) CRLTN
—.566A
—82.0
15.9
9.1
253.7
82.'+
OIR = 146 JEGREES(T)
15.3
=
72.9
AXIS IS 158.1
PRINCIPAL
Y.
JEGREES(T)
3TuTISTICS cUR COORJINATES
ALONGSHORE JIRECTION =
DEGREES
15C
LEG 2
VU C A
I
N
MEAN
1933
21.8
13.6
U
1933
1.1
7.4
•1
',
1933
—15.9
16 • 8
.6
T(jEt, C)
1q33
1.5. 9
-.2
,.i
P
1
.1
<tJRT
MAX
2.2
51.1
MIN
1 •
2
3C.14
—79.6
3.2
38.3
—51.1
3.2
13.9
1.5.6
17.9
80.6
79.8
116
TAPt92I/3
8OIIRTYUGR.
1.iiolw
0.09
o .oa
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
ii.?
6.5
26.9
21.9
16.8
36.3
31.9
41.7
46.5
51.2
200
320 340
DF'I.LU, Cf/SEC
0.13
0.16
0.14
0.12
0.10
0.0$
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
180
200
220 240
260
230
360
DEGREES TRUE
1000
100
to
0.!
-3
—2.5
—2
-
-1.5
—1
—'T.S
0
0.5
FREO!J!NCT. CTCLES PER DRY
1
1.5
2
2.5
3
40.00
30.00
10.00
—10.00
—30.00
40.00
20.00
I
0.00
-20.00
—40.00
—60.00
-J
-z
19.00
-.4
18.00
C)
C,
17.00
I16.00
15.00
91.00'
80.00
79.00
1111111,,
ttII,II,IIIIIIIu,I,,tttI,,,,II,IIII,,,I1IIIIIl,I,,IIII
IJUN
IJUL
LEG 23 HOURUES,
90 t4 AT YUCA
80.0 DAIS STARTING 2000 CMI *3 MAY 1976
I
AUG
118
STATION
LEG
YUCA
FIRST 5 LINES
13
5
OF
2333 13
LAST
5
'+33
2
2
533
733
2
u.0
0.0
u.0
0.0
0.3
31u7.6
—7535.7
0.0
3.u
OF QATA
—5.5
5.8
—3.3
5.8 —3.7
8
—2.7
7b
8
—2.2.
1.8
8 76
2
3113.0
—7512.7
AVGU)
3.M
821
—9.2
I
3
1+
5
15.99
15.91
15.84
15.82
15.77
1929
1931
1933
'IAR('I) 310(U) 510(V) CQV(UV)
5.j.
—2.0
3.9
CRLTN
—.221+1
OIR = 157 DEGREES(T)
9.9 CM/S,
EPJ =
VECTOR MEAN
16.28
16.37
16.41
N—S(V) COMPONENTS
FOR E—W(U)
N
LOW PASS
0.0
3.0
3.0
0.3
C.u
O.u
8 76
8 76
2
FILTERING
HOURLY
0.u
U.Q
5 76
33
INTERVAL
OATA!
7€
5 7o
5 76
5 76
2133 13
TA°E
ilL
2
OFECTIONAL
X
AXIS IS 1)9.5 OEGREES(T)
STATISTICS
DEGREES
JEGREESCI))
COOPOINATES
=
LEG 2
Y U CA
N
S
1.2
3.9
U
—i.3
..+
(Cd/S)
3 .8
L)
.5
SKE4
KURT
.1.
2.6
.1
MAX
MIN
.9
3.3
5..;
—8.8
2.6
—.6
—19.9
2.3
17.7
15.3
119
200 N RT 'rUCA.
13 MAY 76 10 2
76.
TAPE
442/29
,IMERN
0.10
0.09
0.08
0.07
0.05
0.04
0.03
0.02
0.01
0.00
0
4.3
7.4
10.4
13.4
16,4
SPEED
•
19.4
22.4
25.3
28.2
31.1
34.0
CM/SEC
0.30
0.25
0.20
0
z
0
0.15
II.
'-4
ICt
-J
0.10
0.05
0.00
0
20
40
60
80
100
120
140
160
180
200
220
DIRECTION. DEGREES TRUE
240
260
280
300
320
340
360
:: i÷÷
0
——I
• IA.I.
IT
—
10.00
0.00
18.00
17.50
C,
-I
16.50
0
w
0
I.-
15.50
14.50
I-
IJUN
100 M AT YUCA
IJUL
LEG 2: HOUPLIES,
80.0 DAYS STARTING 2000 GIlT 13 MAY 1976
I I I I I I
I 1111111 I
I
I
I
I AUG
121
INSTALLATIONS:
Leg III (JAS '76)
123
JOINT—Il 1976 Installation
MILA III
Posi tion*:
Distance Offshore:
l5°05.8'S, 75°30.2'W
Bottom Depth:
Set:
123 m
1726 GMT 27 July 1976 by R/V EASTWARD
1145 GMT 30 September 1976 by R/V EASTWARD
0100 GMT 28 July to 0400 GMT 30 September
Retrieved:
Longest Data Interval:
Longest Record Length:
10.0 km
64 days, 4 hours
Ins trumentation
Intended
Accepted
Serial
Depth
Depth
Tape #
25 m
50 m
75 m
100 m
28 m
53 m
79 m
104 m
747/23
689/23
746/22
748/20
Sampling
Interval
20 mm
20 mm
20 mm
20 mm
* Navigation: radar fixes and Peru chart DHNM 2200.
Measured
Variables
S,e,T,P,C
S,O,T,P,C
S,O,T,P,C
S,o,T,P,C
124
270
1*0
220
—110
135
'0
—135
53 N AT
121.
64? DAYS
1520 27
—45
—90
NU.A III.
64.? DAYS STARTING 1813 27
2*0
210
-70
2* P1 AT
J%A_ N
76
—140
-125
—210
-280
-350
104 II
-579
79 II RI PlILA III.
64.7 DAYS STARTING 1327 27 JUt. 76
AT PPILA
III.
64.7
DAYS STARTING
1324 27
JIll. N
125
STATION
7 L17123
MILA
FIRST 5 LINES OF
28
7
7t
—
28
7
7
7
7
76
76
76
76
—2.9
—u.3
—2.2
—p.8
300 28
L4j3 28
SuO
LAST
5
12.3
—..8
—7.7
12.3
12.9
FILTERING
LOW PASS
INTERVAL
HOURLY
TAPE 40
'JEPTI1
i€.89
16.92
281772
25032'+
L+Q.3
15.6
16.5
—lu.1
—16.3
72.'+
279992
279922
LINES OF DATA
9 76 10.5 —9.3
'+1+&.4
5'+37.k
279'+69
16.97
'+5.1+15
S
3u
283930
9
9 76
9 76
'+30
—1.1
—3.9
9
3.?
5'+22.1
3.'+
5425.5
42.006
293670
1'+.32
STATISTICS FOR E—W(U) AND N—S(li) COMPONENTS
AVG(V) VAR(U) VAR(4) 510(U) ST0(V)
15.6 —221.1
17.3
2'+2.1
299.3
3.5
—.3
VECTOR MEAN
5P)
3.5
DIRECTIONAL
CIR
16.8
C'1/:S,
+
CRLTN
—.8218
OEGRE€S(T)
V.
IS 131.3 JEGREES(T)
STATISTICS
CUORDINATES ROTATED '+5
DIRECTION = 135 JEGREESCI])
LEG 3
MILA
'4
STJ
VARIASLF
S
(CM/S)
C)
KURT
21.1
10.5
3.3
.3
7.0
2.7
15'e3
2.7
22.2
2.2
jS'+j
z+. 9
1.2
1SL+O
'J
V
SKEW
.3
MAX
MIN
.2
25.1
—19.0
2.9
17.9
12.b
2.8
29.6
27.8
126
III.
28 A AT AILA
37 JUL 7, (0 30 SEP
76.
TAPE
747123
0.12
0.10
0.08
I-
2
0.06
'a.
'a
C
-I
'a
C
0.04
0.02
0.00
0
7.1
24.4
18.7
13.0
30.1
35.6
43.1
46.5
51.8
57.1
62.3
SPEED, cnis'c
0.10
0.09
0.08
0.07
t
0.06
0.05
:1::
0.02
0.01
0.00
0
20
40
60
80
100
120
340
180
160
DIRECTION.
200
220
240
260
280 300
320 340
360
2.5
3
DEOSEES TRUE
10000
1000
I-
100
2:
'a
10
0.1
-3
—2.5
-2
—1.5
—1
—0.5
FREOUENCT.
0
0.5
CTCLES PER OAT
I
1.5
2
30.00
20.00
I,
—.
—20.00
60.00
50.00
30.00
>
—10.00
—30.00
—80.00
16.50
18.00
17.00
I')
-4
16.00
a
15.00
14.00
13.00
12.00
30.00 -
Al ii
'I
0.
-I
ISEP
IAUG
29 P4 AT MILA
64.0 DAYS STARTING
LEG
HOURLIES,
100 GP4T 28 JUL 1976
128
53
3
OF DATA:
FIRST S
lUG 28
LIt'IES
29
29
7 76
7 76
3.2
L+3G 28
76
—2.'+
500 2%
7 7€
—7.1
LAST
17..
7 76
19.u
19.4
19.6
17.4
36.4
12.2
9
.
9
9
73.5
93.1
'+6.3C9
46.4C4
'+6.359
4o.297
lb.79
75
lu.8
Tb
12.4
15.8
0.9
—2.4
—5.5
—9.0
—3.1
IL+98z..9
2257.8
2255.4
14995.7
22'+9.8
2237.7
216.4
1%.6
13.79
533193
43.047
CO P4 PC N EN I S
1'..0
9.9
OIR =
STEAOINESS
PRINCIPAL AXIS
STATISTICS
(EQUIVALENT
42.702
42.71o
510(0) STDU) COV(UV)
AVG(U) 4JG(I)
1.5
13.46
13.47
530332
p31633
532023
224).8
cIATISTICS FOR E—W(U) AN) N—S(V)
N
529102
529102
p29100
529100
16.79
16.39
16.36
.
9 76
3Ju
—0.5
2.7
4.7
2.3
—4.8
OF
5
3
FILTERING
LOW PASS
INTERVAL
HOURLY
TAPE
DEPTH
LEG
MILA
82
—169.2
CRLTN
—.8205
OEGREES(T)
L7,.L4
133.3 OEGREES(T)
COORDINATES ROTATED '+5 DEGREES
DIRECTION = 135 CFGREEStTJ)
LEG 3
ri 114
53 1
N
MEAN
STO
SKEW
KURT
(CM/S)
6.1.
—5.9
.r(OEG c)
P (0e4)
MIN
32.2
S (Ci/S)
Ii
MAX
1S'+3
53.2
3.7
25.1
—19.5
19.'.
.1
E.2
'+6.3
—51.8
1.1
.9
3.1
17.3
12.4
Q.2
53.9
32.7
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129
53 ?1 AT IIILA
TAPt 689/23
27 JUL 74 10 30 SEP 76.
III.
0.14
0.12
0.10
0.0$
0.06
0.04
0.02
0.00
6.5
16.6
01.?
31.9
21.9
36.8
41.?
46.5
60.6
55.9
51.2
SPEED. CA/SEC
0.12
0.10
0.08
'a
0
0.06
0.04
0.02
0.00
20
0
40
60
60
100
140
120
160
200
180
220
260
240
280
320
300
340
360
DT.6€CTICR4, DECREE-a TRUE
00000
1000
too
to
—3
—2.5
—2
—1.5
-1
-0.5
0
0.5
CYCILS POR 001
i
1.5
2
2.3
3
30.
20.
-
..,
•
1'•
—20.00
5.
4.
20.00
iA.
0.00
—20.00
—40.00
—60.00
17.50
16.50
—I
(.4
15.50
14.50
13.50
12.80
11.50
54.00
A_I *
53.0051.00
ISEP
IAUG
53 14 AT MILA
STARTINQ
64.0
LEG 3s HOURLIES,
1876
100 CMT 28
131
MILA
FIRST 5
28
2CC 28
OF DATa!
2j.5 —6.8
76
28
7 76
7 76
SuD 28
20.5
36.0
—5.9
—3.3
7
23
LAST
79
3
7 76
iNTERVAL
HOURLY
TAPE NO
DEPTH
STATION
789902
-1.9.6
1.5.79
789691+
—23.3
15.80
£48.2
71.5
lINES OF QATA:
5
9
9
9
9
C
3L
30
76
76
76
7
11.4
15.7
13.09
16445.5
16461.3
—d.Le
—861.7
—7.1
16436.0
9.8 -13.2
'.3.656
15.55
15.79
15.82
—12.7
.6
12.2
11.2
FILTERING
LOW PASS
13.)t
13.33
43.902
43.913
£41.025
CRLTN
STO(UJ STU(V) GOV(UV)
1..?
143.5
VECTOR IEANZ SPO
12.'
11.9 Ci/S,
=
41.094
41.046
795684
795729
795589
COMPONENTS
STATISTICS FOR E—W(U) AN)
N
1+3.9C3
12.3
—115.C
OIR = 116 OEGREES(T)
61.7
7.
AUS IS 1.35.3
DEGREES
COOPOINATES ROTATED
JIRECTION
=
135
JEGREES(T3)
ALONGSHORE
LEG 3
IL A
7° M
VARIABLE
STD
N
1).
S
U (CM/S)
8
1.0
5 .9
—.2
(CM/S)
—11.3
lo.3
T(r)EG C)
13.7
1.1.
V
P
(flbAP)
SKEW
.2
—1.2
PUN
KURT
2.8
7.u
51.7
1.7
18.0
—15.0
3Li.9
—51.7
30.1
79.0
132
PP A AT AIIM III.
27 UI. 76 ID 30 SEP 76.
TAPE 746/22
0.16
0.14
0.12
0.10
0.00
0.06
0.04
0.02
0.00
6.5
21.9
16.0
11.7
26.9
36.0
31.9
41.7
46.5
51.2
55.9
SPEED. CM/SEC
0.15
0.16
0.14
0.12
§
0.10
0.00
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
160 100 200 220 240
DIRECTION. DECREES TRUE
140
260
285 300
320
310
SdO
10000
1000
z
100
-J
10
0.1
—3
—2.5
—2
—1.5
-1
-0.5
FREOIJITNCT,
0
0.5
000113 PER
1
OAT
1.5
2
2.5
3
20.00
0.00
1
lpy
.-
.-
.
'l
—20.00
40.00
20.00
0.00
—20.00
—40.00
—60.00
17.00
16.50
15.50
0 14.50
0
I.-
13.50
12.90
11.50
81.00
79.00
lit I I III
77.00
I SEP
AUG
79 14 AT I4ILA
64.0 DAYS STARTING
LEC 3z
100
HOURLIES,
20 .JUL. 1970
1
ST A TI U
MILA
134
3
TAPE
IMTEf<V4L
7L&3/2j
HOURLY
FIRST 5 LINES OF .JAtA:
100 28
7 76
7 76
—0.9
—3.2
28
23
28
7 76
7 76
—3.5
LAST
100 30
3uJ
1941298
—16.5
14.32 1040444
'+2.819
—26.'.
14.93
15.ul
15.U9
'+2.938
'.3.016
6
9 71
4.?
6.7
—5.9
—+.9
95'.3.3
1+.S
7.b
7.3
—8593.0
—8603.6
955U.0
9557.3
—b.3
—9.0
8619.5
STATISTICS FOR E—W(U) AN)
AVG(U) AVG(4)
N
14.70
PASS
1039271
103834?
43.116
OF OATA*
9 76
9 76
9 7o
9
'+30 30
—7.7
—0.9
—4.1
—7.6
—10.1
—10.7
—8.7
7
S
8 38
—7.7
—3.3
FILTERING
c.2
12.93
12.92
12.91
12.92
12.93
40.891
1048940
1048770
10L+9'.56
'+0.890
'+0.377
1050436
kC.88u
'+0.899
COMPONENTS
VARU) STO(U) STDfll) COV(UV)
92.3
1G.?
6s.8
CRLTN
—.6280
132 OEGREES(T)
iIEANt SPC =
Gus, r)IR
DIRECTIONAL STE#OINE3S' 36.'+
AXIS IS 139.3 JEGREES(T)
STATISTICS FOR COJROINAIES ROTATEO '.5 iJEGREES
= 135 CEGRFESCTI)
(EQUIVALENT ALO.4GSHORE
LEG 3
114
NI
N
MEAN
S
tj
(CM/)
'!
(Cs/S)
T(OEG C)
P
STD
SKEW
7.6
1.1
6.2
—.3
1541
13•
'3
1.0
1.5
KURT
MAX
MIN
1.8
3.2
16.2
—23.4
2.8
35.1
—41.8
L..8
11.9
135
104 11 RT IIILA
Dli.
27 .JIX. 76 TO 30 SEP 76.
TAPE 748/20
0.12
0.10
0.08
o .o6
I
0.04
0.02
o .oo
5.1
o
13.0
9.1
20.6
16.8
24,4
26.2
31.9
35.6
39.3
42.9
46.5
SPEED, CA/SEC
0.12
0.10
0.08
0.06
0.04
0.02
0.00
o
20
40
60
80
100
120
140
160
160
200 220
240
260
280
300
320
340
360
DIRECT ION • DEGREES TRUE
1000
100
10
0.1
—3
—2.5
-2
—1.5
-1
0.5
0
rREOUEwcv, CYCLES PER DAY
1
1.5
2
2.5
3
20.00
10.00
1
LkI(t.
—30.00
JLPJILLIiMgIi.
''
—10.00
'
.
-
40.00
30.00
10.00
—10.00
—30.00
—50.00
16.50
16.00
-a
15.00
a
14.00
13.00
12.00
11.00
106.00
104.00
102.00
I SEP
I AUG
104 14 AT MILA
04.0 DAYS STARTINO
3; HOURLIES,
100 CMT 29 .JIJL 1S76
137
INSTALLATIONS:
Leg IV
139
JOINT—lI 1976 Installation
MILA IV
Position*:
15°06.O'S, 75°30.2'W
Distance Offshore:
11.5 km
Bottom Depth:
Set:
119 m
1433 GMT 30 September 1976 by R/V EASTWARD
1046 GMT 4 March 1977 by R/V MELVILLE
1700 GMT 30 September to 0800 GMT 4 March
Retrieved:
Longest Data Interval:
Longest Record Length:
154 days, 16 hours
Instrumentation
Intended
Accepted
Serial
Depth
Depth
Tape #
Interval
25 m
50 m
75 m
100 m
23 m
48 m
73 m
99 m
751/20
1962/3
1964/3
503/34
60 mm
60 mm
60 mm
60 mm
Sampling
Measured
Variables
S,O,T,P
S,O,T
S,O,T
S,O,T,P
Coments:
Due to a sensor malfunction on current meter 751 (23 m), speed and
velocity components were zeroed out of the data record in two places.
The two periods for which current data exist are from 1700 GMT
30 September 1976 through 1000 GMT 4 January 1977 (95 days, 18 hours)
and from 0900 GMT 23 January through 0600 GMT 3 March 1977 (38 days,
22 hours).
Due to fouling of the savonius rotor, data for speed and velocity
components don't exist for current meter 1964 (73 m) after 2300 GMT
2 February 1977.
* Navigation: radar fixes and Peru chart DHNM 2200.
100
I00
-100
-l00
300
ISO
300
200
400
500
400
-too
-200
23 II AT lillA.
1702 30 SEP 74
—
1002 4
JAN 77.
1APE
-300
751/20.
-100
—400
—000
73
—200
AT flILA 4.
30 SEP 74
—
2 Itu
77.
I$0! $944/I.
100
23 N AT IIILA.
0902 23 JAN 77 — 0402
3
77.
TAPE
751/20.
ISO
-$00
730
900
$020
-100
-300
40 $*TERS AT IIILA 4.
30 SrP 74 - 4
77.
TVWE 1942/3.
99 IETERS AT liltA 4.
30 SEP 74 — 4
17.
TAPE 503/34.
700
000
141
STATION
tIILA
FIRST 5 LINES OF OATAI
17C2 30
1802 30
1902 30
2Q02 30
2102 30
9 7.6
.
76
9 76
9 76
9 76
5
702
4
3 77
3 77
802
4
3 77
'.
£
—11.3
—13.0
—21.1
—23.1
—2.0 —14..
LINES OF DATAs
0.0
3 77
0.0
0.0
3 77
0.0
LAST
402
532
602
4
—4.4 —16.3
—6.9 —16.2
—1.7 —16.6
—8.1 —12.9
0.0
0.0
3.0
0.0
0.3
11909.7
11909.7
11909.7
11909.7
11909.7
FILTERING
UNFILTEREO
INTERVAL
HOURLY
TAPE NO
751/20
DEPTH
23
LEG
4
—16.3
—32.5
—49.1
—62.0
—76..
—5402.7
—5402.7
—5402.7
—5402.1
13.15
13.72
13.75
13.80
13.75
226500
228100
226500
226500
226500
15.74
16.25
16.11
16.28
15.50
1
2
3
4
5
3708
3709
3710
231600
236000
237600
3111.
3712
STATISTICS FOR E—W(U) AN) N—S(V) COMPONENTS
N
3232
CRLTN
AVG(U) AVG(V) VAR(U) VARtV) STDCU) STD(V) COV(UV)
—88.3
12.5
11.9
—1.7 140.8 156.6
3.7
VECTOR
DIR = 11'.
4.0
MEANI SPC =
DIRECTIONAL STEAOIN€SSS
.59k5
DEGREES(T)
7.
PRINCIPAL AXIS IS 137.6 OEGREES(T)
STATISTICS FOR COORDINATES ROTATED '.5 DEGREES
135 DEGREES(T1)
(EQUIVALENT ALONGSHORE DIRECTION
MILA
LEG '+
23 N
VARIABLE
N
MEAN
510
SKEW
KURT
MAX
tiIN
S (CM/S)
3232
16.8
5.8
1.1
4.5
41.1
6.2
U (CM/S)
3232
7.8
—.2
2.6
24.7
—29.6
V (CM/S)
3232
—3.8
15.4
.5
2.3
40.9
—43.5
T(DEG C)
3712
15.4
.8
—.3
2.5
17.8
13.2
P (D3AR)
3712
22.9
.5
1.1.
4.2
24.7
21.7
142
4.
23 ILTERS AT
0.12
30 SEP
76 - 3 tRW 77.
TAPE 751/20.
.&IIERN
0.10
0.08
0.06
0.04
0.02
0.00
5.3
9.0
12.8
20.4
16.6
24.2
27.9
31.7
35.5
39.3
43.1
SPEED. CM/SEC
0.0I
0.07
0.06
0.04
0.01
0.00
0
20
40
60
80
100
120
140
160
ieo
200
220
240
260
280
300
320
340
360
DIRECTION. DECREES TRUE
MI 23 N, NILA 4.
92 DAYS STARTING 1802 1 OCT 76.
1000
100
10
—3
—2.3
—2
—1.5
—1
-0.5
FREOUENCY •
0
0.5
CYCLES PER DAY
1
1.3
2
2.3
3
fl-1
II
14•44
I
lfl.OO
17.50
ar,.!0
U
19.50
•
C,
14.50
1-14
C-3-I I
I
'It-I,
I
I
114-4
24.00
w
22.00
IL
ZO.00
14 I 14
I
I
I 1441
LI-P I
I-I-I
Cl AT
tl-t I-Cl
I I-Ill
LSC
1!I1.7 DAYS STflRIIUS 1700 CIII
1101..
S47' 1979
C-IP-?I tI Cl 41 C
I
II II
144
MILA
48
FIRST 5 LINES OF DATA:
9 76 13.6 —12.6
1733
1803 30
9 76 12.2 —11.8
9 76 15.4 —6.9
1903 30
9.4 -13.5
9 76
2003 30
9.8 —14.0
2103 30 9 76
LAST
403
503
633
703
803
LINES OF DATA)
5.7
2.4
3 77
.4
6.9
3 17
5.8
.1
3 77
o.0
3 77
2.8
3.6 7.3
3 77
5
1
4
4
4
4
INTERVAL
HOURLY
TAPE NO
1962/3
DEPTH
LEG
STATION
—12.6
—24.4
—31.3
—44.8
—58.8
13.25
13.22
13.30
13.41
13.39
24157.1 —13232.5
24157.5 —13225.6
24158.2 —13219.8
13213.8
24161.0
—13206.5
14.91.
13.6
25.8
41.2
50.6
60.4
15.16
14.94
14.97
14.99
FILTERING
UNFILTERED
1.
2
3
4
5
3708
3109
3710
3711
3712
STATISTICS FOR E—W(U) AND N—Sly) COMPONENTS
AVG(U) AV&(V) VAR(U) VAR(V) STD(U) 510(V) COV(UV)
—.70 83
—78.3
11.1+
9.7
94.3
—3.6 129.6
6.5
N
3712
7.1
119 OEGREES(T)
DIR
OTRECTIONAt. STEADINESS' L.8.0 Z
VECTOR MEAN) SPO =
PRINCIPAL AXIS IS 128.6 DEGREES(T)
STATISTICS FOR COORDINATES ROTATED 45 OEGREES
(EQUIVALENT ALONGSI4ORE DIRECTION = 135 OEGREEStT3)
LEG
MILA
p4
N
MEAN
STO
SKEW
KURT
MAX
MIN
3712
15.5
6.3
.6
3.1
40.2
3.9
U
3712
2.1
5.8
—.1
2.9
19.8
—20.6
V (CM/S)
3712
—7.1
i3.8
.5
2.4
38.5
—38.5
T(OEG C)
3712
.6
—.4
2.7
16.3
12.8
VARIABLE
S
(CM/S)
145
48 UET[RS AT MILA 4.
77.
30 SEP 76 — 4
TAPE 1962/3.
,IMEPN
0.10
0.09
0.08
0.07
'-
0.06
0.03
0.04
0.03
0.02
0.01
0.00
5.8
5.1
16.0
12.4
23.3
19.7
27.0
30.6
34.2
41.5
37.9
SPECS, CM/SEC
0.16
0.14
0.12
0.10
0.08
I..
0.06
0.04
0.02
0.00
20
0
40
60
80
100
120
140 160 180 200 220 240
OIRECTIQN. OEOREES TRUE
AT 48 N. NILA 4.
100
10
I
1
-3
—2.5
—2
-1.5
—1
-0.3
250
300
130 OATS 3TPRTINC 1803 1 OCT 76.
1000
0.1
260
0
0.5
FREGUENCT • CTCLES PER DAY
320
340
360
--30.00
40.00
0
14.00
13.00
02.00
I-P-I -4-4-I -I-.--I-44-I-f44-4-4--I-I-I-I-I4--I-4-4-4-14 41-44-4-I-f
LEG 4. JIOURLIES,
40 N AT NILA
154.7 DAYS StARTING 1700 CMI 30 SEP
1-4-4-4-4-4 4—I-I-I--I-I- 4-4-4- 4-44-4--I-4-I--I-4-I-4-I-1 4—I-4--I -1-4-4-44 4-4 -I-I-I-I--I-4-I.4-4-4-4-I-I4-I--P-I--4--I-I-4-4--4--I-4- II
147
STATION
LEG
DEPTH
4
73
NIL A
2.9614/3
FIRST S LINES OF DATAT
9
9
9
9
9
1705 30
30
30
2005 30
2105 30
LAST
S
1405
14
505
605
705
805
76
76
76
76
76
j•14
—1.3
5.7
14
Z.
14
36.1
53.3
68.6
80.9
3.7
-1.7
VECTOR MEAN
.6
—10.1
FILl ERING
UNFILTERED
13.33
12.98
13.13
13.18
13.25
1
2
3
114.71
3708
114.71
114.68
3709
3110
14.71
14.71
.3711
14
5
3712
AND N—S(V) COMPONENTS
VAR(V) STO(U) 510(V) COV(UV) CRLTN
—88.3 —.59145
12.5
11.9
2.56.6
AVG(U) AVG(V)
3232
5.0
20327.8
20327.8 —t1012.0
20327.8 —11012.0
—11012.0
—11012.0
20327.8
STATISTICS FOR E—W(U)
N
—1.3
18.14
11.7
.6
17.2
-14.14
15.3
12.3 —10.7
LINES OF OATA*
0.0
0.0
3 77
0.0
0.0
3 77
0.0
0.0
3 77
3.3
0.0
3 77
0.0
0.0
3 77
INTERVAL
HOURLY
TAPE NO
1140.8
DIR = 1114 DEGREESCI)
CM/S,
SPO
DIRECTIONAL STEADINESSt 214.2 7.
AXIS IS 137.6 OEGREES(T)
FOR COORDINATES ROTATED 145 DEGREES
(EQUIVALENT ALONGSP4ORE DIRECTION = 135 OEGRE•ES(T))
LEG 4
MILA
21
VARIA9LE
N
MEAN
Sb
SKEW
KURT
MA X
NIH
S (CM/S)
3232
16.8
5.8
1.1.
k.5
1.1
6.2
U (CM/S)
3232
1.4
7.8
—.2
2.6
214.7
—29.6
(CtI/S)
3232
-3.8
.5
2.3
40.9
—40.5
T(OEG C)
3712
114.3
—.3
2.o
15.6
12.5
V
.6
148
73
AT
30 SEP 76 — 2 FEB 7?.
AILA 4.
TAPE
1964/3.
,I.IIEAN
0.10
0.09
0.08
0.0?
0.06
I-
0.05
0.04
0.03
0.02
0.01
0.00
4.6
0
7.6
10.7
12.8
16.9
20.0
23.0
26.1
29.2
32.5
35.4
38.4
300
320 340
360
SPEED,
0.14
0.12
0.10
I
::
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
DECREES TRUE
AT 73 II • uCLA 4,
120 DAYS 3TARIIND 1805 1 OCT 76.
1000
100
10
0.1
—3
—2.5
—2
—1.5
—1
—0.5
FREQUENCY •
0
0.5
CYCLES PER DAY
1.5
2
2.5
3
14114
40M0
III II I14 I_4-t4
U;
—40.00
I 1+1-14
I
4-14-I-I I
LEC 4,
73 H AT MhIfl
154.7 OATS STARTING 1700 GMI 30
1915
.I—)-I 1-41
150
STATION
MILA
INTERVAL
HOURLY
TAPE NO
DEPTH
LEG
503/31+
99
FIRST 5 LINES OF DATA
9 76 12.4
173'. 30
6.7
1804 30
9 76 10.8
.8
1904 30
9 76 11.5
9.3 —6.1
2004 30
9 76
30
9 76
9.8 —4.5
12.4
23.2
34.1
.1.
7.1
7.9
'+4.0
1.8
53.8
—2.7
14103.8
1k106.7
14108.2
14110.8
14113.6
—11187.4
—11190.5
FILTERING
UNFILTERED
12.96
12.94
12.91
12.94
12.96
992500
992500
992500
992500
5
14.39
14.42
14.47
14.44
14.47
992500
988900
988900
988900
988900
3108
3709
I
2
3
992500
5 LINES OF DATAI
LA ST
40
1$.
531+
601+
1.
1+
704
804
1.
4
3
77
3
3
3
3
77
77
17
77
4.2
2.9
1.5
2.6
2.8
.7
—3.1
—3.1
—2.0
—3.3
—1119 .3.6
—11195.6
—11198.9
3710
3111
3712
STATISTICS FOR E—W(U) AND N-S(V) COMFONENIS
AVG(U) AVG(V) VAR(U) VAR(V) STO(U) STO(V) COV(UV) CRLTN
—32.7 —.5202
7.2
8.7
51.8
—3.0
76.3
3.8
N
3712
VECTOR MEAN
4.9 CM/S, DIR = 128 DEGREES(T)
SPO
OIRECTIONAL STEADINESS: 1.2.9
PRINCIPAL AXIS IS 124.3 OEGREES(T)
STATISTICS FOR COORDINATES ROTATED 45 DEGREES
(EQUIVALENT ALONGSHORE DIRECTION = 135 DECREESET])
MILA
VARIABLE
N
MEAN
LEG 1+
STD
SKEW
KURT
MAX
MIN
1.3
3.8
30.9
2.6
(CM/S)
3712
11.3
U (CM/S)
3712
.6
5.6
-.2
.2.7
17.5
—20.6
V (CM/S)
3712
—4.8
9.8
.4
2.7
30.1.
—30.3
T(OEG C)*
3712
2.6
15.1.
12.3
P (DBAR)
3712
2.3
99.6
98.9
S
.6
99.1
* No post-calibration available.
.2
.3
Temperature data were processed using
the pre-calibration of 4 February 1976. See discussion in Appendix 2.
1 51
30 SEP 74-4 lIAR 77.
AT NILA 4.
99
0.12
TaPE 503/34.
.l.1IERN
0.10
0.00
0.06
0.04
0.02
0.00
7.0
4.1
0
9.0
20.9
10.2
15.4
12.6
23.7
26.4
3t.0
29.1
34.4
SPEED, CA/SEC
0.12
0.10
0.00
I-
U
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
180
200
220
240
260
200 300
320
340
360
DIRECTION, DECREES TRUE
CURRENT
AT 99 A, AU.A 4.
ISO DAYS 3TARTINC 1804 1 OCT 76.
thOO
100
10
0.1
-3
-2.5
—2
-1.5
-1
-0.5
0
0.5
FREOUENCY, CTCLES PER DAY
1
(.5
2
2.5
3
—30.00
40.00
—
20.00
0.1)0
, -20.00
—40.00
11.00
.
I.,
L__
97.00 -1-4-1-4-4-4-1-1-14
444-I-144-4-H+1414-4)4-l)lIi t
-- -
-I+4-I-I--14-l-4-4-)4-I-I4-)
14-
I-S
44-4 -I-S
4-I-I-I 444-1-14-4-4-44 I-I-4-$-1-I--I-I-4-++-I-I-4-1--I-4-I-I-I--4-4l 4-4-4 1-4-I-I--I- 54-I-I-Il-1-14-4-4-4-1-1-4-U
jJj
54-4-44-1-4-f-I-I-
-4-4-4-14±
H—I-4-4-I--I++-I S-I-I--I-I-I-I- H-I-I-f 4-1-4-I +5—I--I-f -I--I-H44-I-f +4-I-fI-F-I±H+++++4+f -5-1-1-14-44 14-1-5-44-I-f 4-141 +5-4-1-44-I- 144 HI
L9C 41
99 II AT MILA
154.1 01519 SThJ1)TINO 4709 CMI 35) S9P 1979
153
INSTALLATIONS:
Leg V (MAM '77)
155
JOINT—lI 1977 Installation
AGAVE V
Posi tion*:
Distance Offshore:
15°04.O'S, 75°27.8'W
4.0 km
- 86 m
Bottom Depth:
1909 GMT 4 March 1977 by R/V MELVILLE
Set:
1138 GMT 14 May 1977 by R/V ISELIN
Retrieved:
Longest Data Interval: 0200 GMT 5 March to 0400 GMT 14 May
Longest Record Length: 70 days, 3 hours
Instrumentation
Accepted
Serial
Depth
Depth
Tape #
20 m
40 m
60 m
70 m
26 m
46 m
67 m
77 m
682/36
489/35
684/33
497/32
Intended
Sampling
Interval
20 mm
15 mm
20 mm
15 mm
* Navigation: radar fixes and Peru chart DHNM 2200.
Measured
Variables
S,o,T,P,C
S,o,T
S,e,T,P,C
S,e,T
'5
24 rf€TERS
PIT
P3flVE.
4
77 - t4
432fld.
77.
44
lIt ACmE.
77 - t4
4
77.
459fl5.
50
-J
(TI
200
-150
—200
—200
—250
7?
M
4
77 — 14 $IT 7).
TAPE
4
FIFIR 77—14 uIqY 77.
250
300
350
157
STATION
AGAVE
DEPTH
LEG
5
2.
FIRSI 5 LINES OF OATA.
—3.6
3 77 10.0
200
5
2.2
11.1
3 77
14.9
3 77
5
400
3 77
1,.3
530 5
0.2
15.1
3 77
LAST
5
2
5 77
3u3 14
5 77
5 7,
14.9
12.9
10.1
It4TEP VAL
FILTERING
632/36
HOURLY
LOW PASS
—5.9
265180
263189
43.633
43.767
43.692
15.46
260839
43.524
15.90
15.74
15.70
15.77
2617½1
257575
256874
260344
15.56
15.69
36.1
—3.6
—6.5
—1.1
6b.5
2.6
7954.2
7969.0
7981.9
1992.0
1216.1
1210.2
1003.8
991.1
21.2
LINES OF DATA'
12.9 —la.6
5 77
100 14
200 14
TAPE NO
15.61
42.548
'+2.364
42.500
STATISTICS FOR E—W(U) AND N—S(V) COMPON€NTS
AVG(U) AVG(V) VAR(U) VAR(V) STD(U) STO(V) COV(UV)
—72.8
10.7
11.2
113.6
125.5
.6
N
1681
CRLTN
—.6097
83 OEGRE€S(T)
DIR
4.3
VECTOR MEAN: SPO
DIRECTIONAL STEADINESS: 31.1
7.
PRINCIPAL AXIS IS 132.7 OEGREES(T)
STATISTICS
(EQUIVALENT
COORDINATES ROTATED 45 DEGREES
= 135 L3EGREES(T))
LEG 5
AGAVE
26 M
N
MEAN
STO
SKEW
4.9
.2
(CM/S)
1683
U (CM/S)
1683
3.8
V (CM/S)
1683
—3.3
13.9
T(DFG
1631
15.5
.2
165.3
26.2
.3
S
.2
.6
KURT
lAX
tIIN
39.0
1.2
2.9
26.4
1.8
26.9
3.3
jo.6
3.2
27.4
—37.8
25.5
158
26 SIETERS AT ACAVE.
4 lIAR 37 - 14 ART 77.
TAPE 682/56.
0.20
0.18
0.16
0.14
4.12
0.10
0.08
0.06
0.04
0.02
0.00
#.i
5.1
15.0
i6.8
20.6
24.4
28.2
51.9
55.6
39.3
42.9
SPEED. CIt/SEC
0.08
0.07
0.06
0.05
0.04
0.05
0.02
3.0.1
0.00
o
20
40
60
80
100
123
143
160
180
200
DIRECTIIIi, DEGREES
220
240
263
280
323
320
340
360
TRUE
1000
too
-I
C
C'
'Si
23
to
—3
—2.5
—2
—1.5
—1
—0.5
C
0.5
PER OAT
1
1.5
2
2.5
3
30.00 20.00
0.00_
—20.00
30.0
20.0
U,
z
1-,
0.00
—20.00
—40.00
17.00
0,
'.0
j
14.00
I MAY
I APR
26 14 AT ACAVE
70.1 OATS STARTING
LEG St
200 GHT
HOURLIES,
5 MAR 1911
160
'+89/35
'+6
5
FIRST 5 LINES OF DATA:
14.6 —9.1
3 77
5
200
3 77 9.7 —11.5
5
300
'+00
5
3. 77
SOC
5
3 77
3 77
5
—9.1
—20.7
—33.1
14.94
I
2
3
—'+7.3
14.93
14.95
4
16926.4
—4128.1
16941.'.
—'.139.6
—'.152.5
15.32
15.30
15.31
—4163.8
—4173.1
15.34
1679
1680
1681
1682
1683
—63.6
5
0 14
FILTERING
LOW PASS
14.6
24.3
33.1
41.5
48.1
8.9 —12.5
8.4 —14.1
6.6 —16.4
LINES OF DATA
5 77 15.2 —12.3
5 77 15.0 —11.4
100 1'.
—lt.9
5 77
14
jL4
5 77 14.3 —11.3
1'. 5 77 15.9 —9.3
LAST
INTERVAL
HOURLY
TAPE NO
DEPTH
LEG
STATION
16954.9
16969.2
16985.1
5
STATISTICS FOR E—W(tJ) AND N—S(V) COMPONENTS
AVG(U) AVG(V)
—2.5
N
VAR(U) VAR(V) STOCU) STD(V) COV(UV)
107.8
9.9
l(.L.
—68.'.
CR LT N
—.665 8
10.4 CMIS, DIR = 104 DEGREES(T)
VECTOR MEAN* SPO =
DIRECTIONAL STEAOINESS 61.3 7.
PRINCIPAL AXIS IS 137.0 OEGREES(T)
ROTATED
STATISTICS FOR
(EQUIVALENT
45 DEGREES
DIRECTION = 135 )EGREES(T])
LEG 5
AGAVE
46 'I
VARIABLE
N
MEAN
Sb
—.1
SKEW
KURT
MAX
PUN
7.0
.2.7
.6
22.2
—14.5
23.4
—42.5
16.0
14.9
(CM/S)
16R3
16.9
U (CM/S)
1683
5.4
5.2
5.9
(CM/S)
1683
—8.9
13.1
.6
2.9
2.6
T(OEG C)
1683
15.3
.2
.1
2.6
S
V
161
46 1ETERS AT ACAVE.
77.
77 — 14
4
TAPE 489/35.
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
o .oo
9.9
5.5
0
18.5
14.2
22.7
26.9
43.3
39.2
35.2
31.1
47.3
SPEED • CA/SEC
0.12
0.10
0.05
0.06
0.04
0.02
0.00
20
0
40
60
80
100
120
140
160
180
200 220
240
260 280
300 320 340
340
DIRECTION. CECREES TRUE
1000
too
V.,
z
0
'SI
10
0.1
—3
—2.5
—2
—1.5
—1
0.5
0
—0.5
FREOUENCT, CYClES PER 0111
1
1.5
2
2.5
3
30.00
20.00
F..
wr
—20.00
30.00
10.00
—10.00
-J
—30.00
N)
—50.00
16.50
16.00
C,
C,
w
0
15.00
I-
14.00
IIHIJIII II Illi 111111
lilt, 11111111111111111111
MAY
I APR
46 H AT AGAVE
70.1 DAYS STARTING
I
I
LEG 5:
200 Gt4T
HOURLIES,
5 MAR 1977
163
STATION
684/33
67
5
AGAVE
FIRST 5 LINES OF DMTA:
10.6 —7.7
3 77
200
300
5
400
5
5
5
600
3 77
7.9
3 77
3 77
3 77
5.9
5.4
6.3
10.6
18.5
—17.1
24.4
29.8
36.1
—26.0
—33.7
—42.5
9402.5
9412.3
9421.5
—6188.3
—6195.2
—6201.b
—6207.2
—9.5
—8.9
—7.7
—3.3
5 LINES OF DATA:
LAST
9.7 —9.1
0 14 5 77
—6.9
9.8
100 14 5 77
9.2 —6.4
14
5 77
9.5 —5.6
300 14 5 77
4.2
5 77 11.5
400 11.
INTERVAL
HOURLY
TAPE NO
DEPTH
LEG
931.0
—7.7
14.79
1.30
FILTERING
LOW PASS
43.110
670129
667621
43.143
14.31
14.80
14.81
666505
665987
664987
1+3.158
15.27
15.28
15.28
15.26
15.26
673228
670301
668403
667903
667844
43.354
43.375
43.377
43.364
43.131
43.134
1+3.371
STATISTICS FOR E—W(U) AND N—SfV) COMPONENTS
AVG(U) AVG(V) VAR(U) VAR(V) STOCU) STO(V) COV(UV) CRLTN
7,5
—33.5 —.6C18
7.4
—'.7
55.C
56.3
5.6
N
1683
VECTOR
SP!J
MEAN
6.7
=
C1/S,
!)IR
= 123 DEGREES(T)
57.8 X
DIRECTIONAL
PRINCIPAL AXIS IS 134.4 3EGREES(T)
ROTATED
45 DEGREES
STATISTICS FOR
135 OEGREES(T3)
(EQUIVALENT ALOMGSHORE DIRECTION
LEG 5
AG AVE
67 1
VARIABLE
STO
N
1(URT
MAX
MIN
5.5
3k.2
.9
(CM/S)
1683
11.6
U (Cs/S)
1683
1.4
4.7
3.1
15.5
—15.3
(CM/S)
1683
—6.6
9.1+
2.6
20.1.
—34.2
1683
15.2
.2
.0
2.2
15.6
14.7
1o83
66.9
.3
1.1
3.8
o7.9
66.4
S
V
T(OEG
P
(D8AR)
1.4
164
4 lIAR 77 — 14 OAT 77.
67 IIETERS AT AGAVE.
TAPE
684/77.
0.18
0.16
0.14
0.12
o:io
0.08
0.06
0.04
0.02
0.00
7.8
4.0
0
11.0
22.0
20.6
17.5
14.2
26.9
30.1
36.2
33.1
SPEED. CA/SEC
0.16
0.14
0.12
0.10
I-,
0.08
I
0.06
0.04
0.02
C .00
0
20
40
60
80
100
120
140
162
180
200
220
240 260
280
303
322
343
363
D:RCCTICN, DECREES TRUE
1000
.100
0
z
C
10
Ar
0.1
—3
—2.5
—2
-1.5
—1
—0.5
C
PREOUI.401 • CTCI.ES
0.3
PER DAT
1
1.3
2
2.5
3
20.00
0.00
—20.00
—40.00
III liii
1111111 111111 111111 III
liii 1)111 III
%MAY
IAPR
H AT
70.1 DAYS STARTING
LEG
HOURLIES,
200 GMT
5 MAR 1977
166
STATION
AGAVE
OEPTW
LEG
FIRST 5 LINES OF OATA
200
3 77
5
5.2
—6.0
300
5
3 77
2.8
—7.4
400 5
3 77
2.1
—6.2
500
5
3 77
0.8
—6.2
600 5
3 77
0.6
—7.8
LAST
LINES OF DATA
5 77
7.8
5 77
100 1'.
8.1
2J8 1'+
5 77
8.6
330 14 5 .7
8.8
5 77
14
9.7
5
0 14
5.2
8.0
10.1
10.9
11.5
N
AVG(U)
3.2
—3.7
VECTOR MEANT
FILTERING
LOW PASS
14.76
14.78
-13.3
—19.5
—25.7
—33.5
1
14.79
14.79
2
3
4
5
15.26
15.27
15.27
15.27
15.26
1679
1680
1681
1682
1683
14.79
S
5409.8
5417.8
5426.5
5435.3
—7.6
—5.3
—4.3
—3.2
—3.8
—6230.2
—6235.2
—6239.5
—6242.8
—6246.6
STATISTICS FOR E—W(U)
1683
INTERVAL
HOURLY
TAPE MO
497/32
77
5
N—S(V)
VAR(U) IIAR(V) STO(U) 510(V) COV(UV)
37.7
4.9
SPO
6.1
5.4
—18.8
CRLTN
—.5648
OIR = 139 OEGREES(T)
C1/S,
DIRECTIONAL STEAOHESS
56.6 X
PRINCIPAL AXIS IS 141.2 OEGREES(T)
STATISTICS FOR COOROINATES ROTATED
5 OEGREES
ALONGSf4ORE
= 135 CEGREESCTI)
AGAVE
LEG S
77 M
VARIABLE
N
MEAN
STO
SKEW
KURT
MAX
MIN
5.5
28.7
.8
S (CM/S)
1683
8.7
4.0
1.3
U (CM/S)
1683
—.3
3.8
—.2
3.6
13.4
—16.5
" (CM/S)
1683
—'4.9
7.2
.'
2.8
13.9
—28.6
T(OEG C)
1683
15.1
.2
.0
2.7
15.5
14.6
•
fl
167
I1ETEAS At ACAVE.
4 11RA 7) — 14 hAY
TAPE 497/33.
7?.
J,tEAN
0.12
0.10
0.03
b.o6
0.04
0.02
0.00
3.8
0
9.0
6.4
il.6
14.2
16.8
24.4
21.9
19.3
26.9
29.4
31.9
34.3
SPEED, Cr1/SEC
0.14
0.12
0.10
IL'
o .oe
C
U-
ILl
a-
0.66
I0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
180
200
220
240
240
280
300
320
340
DIRECTION • DECREES TRUE
0000
100
to
0.1
—3
—2.5
—2
—1.5
—1
—0.5
0
0.0
FREOLJENCY, CYCLES PER DAY
1
1.5
2
2.5
:3
20.00
;
20.00
10.00
I
-10.00
•
t i
s
u
i
.L
,
.A
•
kIM1
•
-
> —30.00
16.00 T
0
w
15.00
a
Illil
I-
14.00
I
I
77 N AT AGAVE
70.1 DAYS STARTING
LEG 5:
200 GMT
HOURLIES,
5 MAR 1977
MAY
i
169
JOINT—Il 1977 Installation
MILA V
Posi tion*:
Distance Offshore:
15°06.O'S, 75°30.8tW
12.0 km
Bottom Depth:
Set:
121 m
1825 GMT 5 March 1977 by R/V MELVILLE
2022 GMT 14 May 1977 by R/V ISELIN
0100 GMT 6 March to 1300 GMT 14 May
Retrieved:
Longest Data Interval:
Longest Record Length:
69 days, 13 hours
Ins trumentati on
Accepted
Serial
Depth
Depth
Tape #
Om
0m
19 m
39 m
59 m
80 m
100 m
115 m
Dl67/5
687/24
488/27
752/25
490/30
686/34
1241/8
Intended
20 m
40 m
60 m
80 m
100 m
115 m
Sampling
Interval
20 mm
20 mm
15 mm
20 mm
15 mm
20 mm
15 mm
Measured
Variables
Sw,Ow,Ta,T
S,o,T,P,C
S,o,T
S,O,T,P,C
S,O,T
S,O,T,P,C
Comments:
The meteorological buoy data logger (0167) leaked after the first
six days of the installation and the subsequent record was not usable.
Slowing of the rotor on RCM 687 (19 m) due to heavy fouling was apparent
by 1 May 1977. Speed and component velocities were accepted through
00 GMT 30 April, and zeroed out of the record thereafter. The gearbox
and speeds were such that 1/3 - 1/2 of the remaining speed observations
had to be linearly interpolated.
* Navigation: radar fixes and Peru chart DHNM 2200. The position of the MILA V
meteorological buoy was estimated to be 15°05.5'S 75°29.7'W.
170
1750
1400
1050
?00
—1?5O
—1400
WIND AT tIILA V.
—1050
-700
-350
6.0 DAYS STARTING 1358 5 rIAR 7?
350
171
5
FIRST 5
2000
2100
5
6
2300
5
0
6
LAST
5
3 77
3 77
3 77
3 77
3 77
TAPE
DEPTH
LEG
MILA
OF DATAt
—3.0
—3.8
—6.0
—6.7
—6.9
5.5
3.6
3.9
—3.0
—6.7
5.9
—26.1+
LINES OF DATA I
3 77
3 77
3 77
300 11
1490 11.
500 11
600 11
700 11
3 77
3
—'+.L+
2.1+
—3.6
—2.7
—1.9
—3.3
'+,1
—1+39.0
3.0
1.7
—'+43.7
—1.47.0
4.6
18.68
16.77
lo.86
2
16.68
1+
9.0
12.9
17.1
23.0
18.31
417.1+
17.21
128
'+26.1
19.02
18.96
19.39
17.16
4.30.8
18.72
17.35
130
131
132
P4—5(V)
COMPONENTS
429.1
STATISTICS FOR E—W(U) ANO
PASS
HOURLY
5.5
—12.8
—19.5
z+.2
INTERVAL
NO
0167/5
0
18.74
19.25
19.43
5
AVG(U) AVGU) VARCU) VAR(V) 510(U) 510(V) COV(UV) CRLTN
—1.6 —.5613
1.5
2.0
2.1
1.9
3.3
N
132
14.7
VECTOR MEAN: SF0 =
1/5,
DIR =
95.5 7.
OTRECTIONAL STEADINESS
PRINCIPAL AXIS IS
120.7
145 CEGREES(T)
DEGREES(T)
DEGREES
STATISTICS FOR COOROINA?ES POTATED
135 DEGREESCTI)
(EQUIVALENT ALONGSHORE DIRECTION
LEG 5
MILA
0',
VARW3LE
N
MEAN
STO
SKEW
KURT
MIN
2 .0
—.6
2.6
.6
S
(M/5)
132
Li
(MIS)
132
—.1
1.2
—.2
2.7
2.5
—3.7
V
(M/S)
132
4.
2.2
—.7
2.9
9.1
—1.3
.7
2.3
17.4
15.4
20.9
16.8
1W
(flEi)
7
13'
132
1.S.4
.7
172
hIND AT MILA V.
5 MAR 77 - 11 MAR 77.
TAPE 0167/5
.1. MEAN
0.24
0.22
0.20
0.18
0.16
0.14
0.08
0.06
0.04
0.02
0.00
0
2
1
4
3
5
6
7
8
9
10
11
12
SPEED, ti/SEC
0.20
0 • 18
0.16
0.14
0.12
0.10
I
0.08
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
140 160 180 200 220 240
DIRECTION, DECREES TRUE
260
280
300
320 340 360
43
225
-100
00 II AT HILA V.
70.0 OATS $Tf*TINO
5 OAR 77
-225
200
19 5 AT IIfl.A V.
250
500
70.0 OATS SIASTING 190* 5 005 77
—I
500
—125
-.4
625
—250
-200
—275
29 H AT ASIA V.
70.0 OATS STARTING 1554 5 lIAR 77
750
—12$
$9 II AT IIILA V.
70.0 0575 31551190 1*42 5 lIAR 77
115 N AT 5115 5.
70.0 OATS STASTIN$ 1547 5
70.0 0513 STARTING 1547 5 00$ 77
77
174
MILA
19
5
FIRST 5 LINES OF DATAt
13.2 —23.7
3 77
206
7.9 —16.9
3 77
330
6
7.3
—9.0
kuu €' 3 77
2.6
3 77
6
500
600 6 3 77 —4.3 —16.1
LAST
900
1000
1106
120U
LINES OF DATA1
0.0
5 77
6.0
5 77
0.0
5 77
0.0
5 77
0.0
5 77
5
14
14
14
14
130u 1'+
INTERJAL
HOURLY
TAPE NO
DEPTH
LEG
STATION
3.0
0.0
0.0
O.i
FILTERING
LOW PASS
13.2
21.1
28.4
30.9
26.7
—20.7
—37.6
—46.6
—6U.7
—76.8
15.69
15.71
15.81
16.37
16.33
193412
0.0
0.0
0.0
3.0
u.0
0.0
0.0
0.6
0.0
16.11
16.35
16.46
16.22
16.19
195493
197019
196026
fl.6
'+3.756
43.758
43.854
190297
187795
186415
'+4.107
44.021
'+2.123
'+2.069
42.429
42.244
42.247
192997
STATISTICS FOR E-W(lJ) AND N—S(V) COMPONENTS
AVG(U)
3.5
N
1311
VAR(V) STOCU) STO(V) CO'1(UV)
—60.7
11.7
12.8
137.7
—2.3
CRLTN
—.4028
DIR = 123 DEGREES(T)
CM/S,
1ECTOR MEANS SPO =
DIRECTIONAL STFADINESS* 24.5 7.
PRINCIPAL AXIS IS 128.7 3EGREES(T)
STATISTICS FOR COORDINATES ROTATED 45 DEGREES
(EDUPJuLENT ALONGSHORE OIREt.TION = 135 OEGREES(T1)
LEG 5
fIILA
19
N
MEAN
(Cr415)
1311
17.1
U (CM/3)
1311
.8
(CM/S)
1311
T(!)EG C)
1668
P (DEAR)
1668
S
\I
510
SKEW
MAX
MIN
38.1
1.2
2.3
23.9
—21.8
KURT
.5
9.5
14.6
.1.
1.7
23.6
—38.0
16.3
.3
.7
3.3
17.3
15.2
18.9
.4
•.
2.6
19.8
17.6
175
19 0 AT lILA V. 5 liaR 77 — 29 APR 77.
TAPE 657/24
1.16
0.14
0.12
o . to
o .oe
0.06
I
0.04
0.02
0.00
35.6
28.2
24.4
9.1
5.1
0
42.9
59.3
SPEED, Cl/SEC
0.07
0.06
0.05
0.04
o .os
0.02
0.01
0.00
o
20
40
60
80
tOO
120
140
161
180
230
220
240
260
280
300
220
210
360
3E.3YEES TRUE
1010
too
a01
2
Ill
'a
-I
C
C
Ui
4-
4)
to
-3
-2.3
—2
-1.5
-1
-0.3
0
0.5
313' ES 4E8 DAY
1
1.5
2
2.1
3
30.00
x
L
10.00
—10.00
.
..
A
IV
-
—30.00
30.00
20.00
U)
0.00
—20.00
—40.00
17.50
C,
16.50
C,
w
0
I.-
15.50
14.50
20.00
I. LAJIAIIIAilgAnJ.*iA A —
I i& I
I
A
I
18.00
0.
16.00
I APR
19 H AT MILA
69.5 OATS STARTING
I
LEG Si
200 CMT
HOURLIES,
6 MAR 1977
MAY
177
STATION
MILA
TAPE
DEPTH
39
LEG
5
INTER
HOURLY
NO
'+88/27
FIRST 5 LINES OF OATA$
3 77 14.7 —16.6
130 6
16.2 —14.7
3
6
200
18.0 —14.7
3 77
6
300
15.6 —11.3
3 77
b
400
11.6 —12.7
500 6 3 77
14.7
30.8
48.8
64.4
76.0
—16.b
—3i.3
LINES OF DATA:
11+
5 77 17.8 —3.4
9u0 14 5 77 17.1 —8.0
—9.'+
5 77 15.3
14
—8.7
5 77 12.5
1103
5 77 lu.1 —10.7
14
15517.3
15534.4
i55k9.5
15562.0
—5675.2
—5683.3
—5692.7
—5101.4
—5712.2
LAST
—'+6.1
—57..
—70.1
5
FILT€RING
LOW
15.16
15.12
15.06
15.19
15.31
1
2
3
4
5
15.53
15.58
1664
1665
1666
1667
1668
15.47
15.52
PASS
STATISTICS FOR E-W(U) AN.') N—S(V) COMPONENTS
AVG(U)
N
9.3
1668
—3.4
VARIU) VAR(V) STJ(U) STD(V) COV(UV) CRLTN
—50.4 —.4841
10.6
9.8
111.3
96.9
9.9 GuS, DIR = 113 OEGREES(T)
VECTOR MEANt SPO =
DIRECTIONAL STEADINESS' 60.0 Z
PRINCIPAL AXIS IS 139.2 O€GREES(T)
'+5 DEGREES
STATISTICS FOR COOROINATES ROTATED
ALONGSHORE DIRECTION = 135
LEG 5
MILA
MEAN
STJ
SKEW
KURT
MAX
(CM/S)
16.6
5.7
1.5
7.7
42.3
U (CM/S)
..2
7.3
—.1
2.5
21.7
—9.0
12.4
.4
2.7
19,8
.2
.'+
3.4
16.4
VARIABLE
S
V
(CM/S)
T(JEG
N
166S
1663
IIN
-42.2
178
39 II AT MXI.A V.
5 MAR 7? — 14 fIAT 7?.
TAPE 488/27
.l,IIEAN
0.18
0.16
0.14
0.12
d
0.06
0.04
0.02
0.00
5.5
0
9.9
18.5
14.2
22.?
26.9
31.1
35.2
39.2
43.3
47.3
SPEED, CM/SEC
0.12
0.08
1-
U
C
'a
0.06
Ii.
'a
0.04
0.02
0.00
0
20
40
6C
80
100
120
160 150 200 220 240
DIRECTION, DECM!E5 TRUE
140
300
260
320
340
360
69 OATS SYNC 100 6 MAR 77
LP CURRENT AT 39 II, NItA V.
10CC
100
0
10
U
U
a.
4,
0.1
—3
—2.5
—2
—1.5
—1
—0.5
FREOUENCT •
3
0.5
CTCI.LS PER OAT
1.5
2
2.5
3
30.00 20.00
z
C)
0.00
1
I
I
I
20.00
10.00
—10.00
—30.00
-50.00
16.50
16.00
C)
C.,
Iii
0
15.00
I14.00
II iiItiIiII 111111 III 11111 IlIttlIllI
IAPR
39 N AT MILA
69.5 DAYS STARTING
II
IMAY
LEG 5:
100 GMT
HOtIRLIES,
6 MAR 1977
180
MILA
5
lOU
200
6
6
6
6
303
1+30
6
LAST
5
900 14
1130 14
1230 14
1300 11+
FILTERING
LOW PASS
TAPE NO
DEPTH
LEG
ST A 110 N
5
LINES OF DATA:
3 77
3 77
3 77
3 77
3 77
5 77
5 77
5 77
14.76
14.79
14.84
14.80
14.83
593607
592643
591905
590880
590901
17177.6
-5359.5
15.24
595406
43.415
17194.9
17211.5
17225.4
17233.8
—5378.0
—5393.3
15.22
15.16
15.14
15.12
596492
596540
594393
592750
43.393
43.334
38.1.
59.0
76.5
88.9
LINES OF DATA
5 77 22.5 —17.0
17.3
5 77
16.6
13.9 —13.3
8.4
42.906
42.942
42.998
42.958
42.979
—23.3
—39.9
—54.1
—67.6
18.5
18.5 —10.6
19.8 —12.7
20.7 —16.6
17.5 —14.2
12.3 —13.4
—5420.2
'+3.299
43.278
STATISTICS FOR E—W(U) AND N—S(V) COMPONENTS
AVG(U) AVG(VI VARCU) VAR(V)
99.7
1C.3
89.5
N
1669
9.5
510(V) COV(UV) CRLTN
—55.6 —.5888
IC.u
DIR = 107 OEGREES(T)
VECTOR MEAN:
=
jO.8
DIRECTIONAL STEADINESS' 65.4 Z
PRINCIPAL AXIS IS 137.6 OEGREES(T)
+5 DEGREES
STA1ISTICS FOR COORDINATES ROTATED
(EQUIVALENT ALONGSHORE DIRECTION = 135 DEGREES(TJ)
LEG 5
MILA
59
P
MIN
STO
SKEW
KURT
1669
16.6
5.7
1.5
7.5
.7
1669
5.
6.2
—.2
2.6
—13.9
(CM/S)
1669
—9.6
12.3
.4
2.8
19.3
—1.3.8
C)
1669
15.2
.2
.C
2.8
15.9
14.7
(OBAR)
1669
.1
1.5
6.0
59.8
(CM/S)
U
V
MAX
MEAN
VARIABLF
S
'1
N
181
59 1 TEES Al IIILA.
77 - 14
5
77.
TAPE
752/25.
AN
0.22
0.20
0.18
0.16
0.14
:
0.05
0.06
0.04
0.02
0.00
5.8
0
10.4
19.4
14.9
32.5
25.2
23.5
45.3
41.1
36.8
49.5
SPEED. Cu/SEC
0.14
0.12
0.10
0.05
.0.06
I
0.04
0.02
0.00
20
0
40
60
80
100
120
140
190
160
200
220
240
260
260
300
320
340
360
DIRECTION, DECREES TRUE
1000
100
10
0.1
—3
—2.5
—2
—1.5
—0.5
FREQUENCY •
0
0.5
CYCLES PER DAT
1.0
2
2.5
3
P_
30.00
16.00
C,
18.00
14.00
I-I 4
I I I I I I I I
I
I I
I
I I
I
I I
I 1111111 I
I I I I I I I I I
I
I I I I I
I III I I I II I
IMAY
I.APR
59 14 AT NILA
69.5 DAYS STARTING
I I I I
LEG 5*
100 GIlT 6 MAR 1977
I II I I III It
183
MILA
5
FIRST 5 LINES OF OATA$
3 77 16.9 —1.2.6
6
100
—8.5
19.9
3 Ti
6
200
3 77
LAST
5
900 11+
14
1130 14
12u3 14
1303 14
16.9
36.8
58.2
73.8
81.7
21.3
3
6
INTERVAL
HOURLY
TAPE MO
DEPTH
LEG
STATION
3 77
—9.3
15.6 —11.7
7.9 —10.6
—12.6
—21.2
—30.2
—'+1.9
—52.5
LOW PASS
11+.??
i'+.76
1.
2
3
4
5
14.77
14.76
14.76
LINES OF DATA:
5 ii
21.0 —1'+.9
5
5
5
5
17.6 —15.3
77
77
77
77
12.0 —13.9
13679.1
13692.2
13704.2
12.6 —12.'+
t3fl.6.8
1.3.2 —15.3
—6651.2
—6667.0
—6682.0
—6696.0
15.01
15.02
15.05
15.03
15.30
1.665
1666
1667
1668
1669
STATISTICS FOR E—W(U) AND N—S(V) COMPONENTS
AVG(tJ) AVG(V) VAR(U) VAR(V) 510(U) STO(V) COV(UV)
N
—.)
1669
78.2
1C.1
8.8
—'+3.0
CRLTN
—.4843
DIR = 116 OEGREES(T)
59.1 7.
9.1.
VECTOR MEANt SPO =
DIRECTIONAL
AXIS IS 127.6 DEGREESCI)
STATISTICS FOR COORDINATES ROTATED 45 DEGREES
= 135 DEGREESCI))
CEOULIALENT ALIJNGSHORE
LEG
MILA
80 M
VARIABLE
N
(CM/S)
MEAN
SKEW
KURT
MAX
6.8
tlIN
1.2
1.4
15.5
1669
U
510
2.4
i7.E
—15.8
(CM/S)
16b9
—8.7
11.5
.6
2.8
2fJ.2
—41.9
T(DEG C)
1669
13.C
.2
—.1
2.9
15.5
14.5
\I
184
5 lIAR ?? - 14 ART 77.
eo A AT lILA V.
O.n
TAPE 490/30
1.I1EAN
0.20
0.18
0.16
0.14
0.12
I
0.10
0.08
0.06
•O.04
0.02
0.00
9.9
5.5
le.5
14.2
26.9
22.?
35.2
31.1
39.2
43.3
47.3
SPEED. CA/SEC
0.12
0.10
0.08
0.06
0.04
0.02
0.00
0
20
40
60
60
100
120
140 160 180 200 220
DIRECTION. DECREES TRUE
240
260
280
300
320
340
360
69 SAYS SYNC 100 6 MAR fl
LP CIJROENT AT 80 r, MUM V.
1010
100
r
(0
z
ID
0.1
t
—3
—2.5
—2
-1.5
-1
—3.5
-——-——• —
0
CYCLES
0.5
I
1.5
2
2.5
3
30.00
J
> -30.00
-J
—50.00
U,
IMAY
90 H AT NILA
69.5 DAYS STARTING
LEO 5z
100 CHT
I4OURLIES,
6 MAR 1977
186
STATION
DEPTH
LEG
MILA
FIRST S LINES OF DATA:
6
3 77
9.7
3 77
6
13.5 —8.3
3uu 6 3 77 11.9 —2.8
1+00
3 77
6
1.2
—5.2
50')
3 77
6
4.9
—8.3
23.1
35.C
36.2
41.0
LAST 5 LINES OF DATA
9C3 14 5 77 11.2 —12.5
1000 14 5 77
8.7 —12.2
11+
5 77
—11.1
1200 14 5 77 12.1
—6..)
5 77
13C0 14
13.2 —3.9
7281.6
7290.4
7299.8
7311.9
7325.1
9.7
FILTERING
LOW PASS
INTERVAL
MOURLY
TARE
5
—14.9
—23.2
26.O
—32.2
-1+0.5
—5736.8
—5760.1
—5766.1
—5769.9
j4.71,
1005008
1004992
1005004
14.74
14.75
14.75
14.74
42.707
42.720
42.715
42.714
1005000
1008006
1008197
1009472
1008640
1007628
14.87
14.87
14.89
14.88
14.56
42.859
1+2.844
42.885
42.876
42.854
STATISTICS FOR E—W(U) AND N—S(V) COMPONENT
N
1669
uVG(U) AVG(V) VAR(U) VAR(V) STD(U) STO(V) COV(UV) CRLTN
L.4
—.1+227
—26.0
7.5
—3.5
56.7
VECTOR MEAN: SPa
5.6 Ci/S, DIR = 128 DEGREES(T)
DIRECTIONAL STEAOINESS 1+8.2
7.
PRINCIPAL AXIS IS 129.6 OEGREES(T)
STATISTICS FOR COrROINATES ROTATED 1+5 DEGREES
135 CFGREEStII)
(EQUIVALENT
LEG 5
MILA
VARIABLE
S (C4/S)
N
1669
MEAN
STD
11.6
SKEW
KURT
MAX
MIN
1.6
8.0
1+2.5
.3
2.+
U (CM/S)
.7
6.0
.1
V (CM/S)
—5.5
9.1+
.7
1669
.2
—.2
1669
.1
.1
T(OEG C)
—16.9
iq.o
—40.8
3.5
15.4
1'..2
3.0
101.0
100.3
187
lOOflAItItLflV. SMPRfl-14M9Y77. 1RPE606/34
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
5.1
9.1
13.0
24.4
20.6
16.8
28.2
31.9
35.6
39.3
42.9
46.5
SPEED. WI/SEC
0.09
0.08
0.0?
0.06
2
0.05
0.04
0.03
0.02
0.01
0.00
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320 340
360
DIRECTION, DECREES TRUE
IP CURRENT 51 100 P. lILA V.
69 0912 SING 100 6 lIAR 2?
1000
100
I0
10
0.1
—3
—2.3
-l
-1.3
—1
—0.3
0
TItLES
0.3
051
1
1.3
2
2.3
3
20.00
kki AM
V 1! V
V
1'
"
P
iW
-20.00
20.00
10.00
—10.00
— —30.00
—50.00
-J
15.50
co
U
14.50
0
I.-
13.50
101.00
99.00
I MAY
APR
100 M AT NIL.A
69.5 DAYS STARTING
Si
100 CMT
HOURLIES.
6 MAR 1977
189
STATION
'lILA
LEG
DEPTH
5
115
FIRST 5 LINES OF DATA:
6.3 —10.8
3 77
6
100
8.8 —7.1
200 6 3 77
9.3 —3.6
3 77
6
300
—5.6
+.3
403 6 3 77
2.7 —5.5
3 77
503 6
LAST
933
5
1000 14
5 77
5
1200 14
13u0
6.3
15.0
77
5 77
5 77
5.6
14.73
1
—17.9
2
3
1665
—21.6
31.4
—27.2
—32.7
1298.8
—5535.8
14.61
—5534.8
14.79 1667
14.79 1668
14.81 1669
1296.9
.1298.8
7.6
—10.8
24.4
i297.2
—9.1
—0.3 —10.0
1.9 —9.9
—1.6
FILTERING
LOW PASS
14.75
14.74
14.73
14.73
28.7
LINES OF DATA:
5 77 —1.3 —10.7
INTERVAL
HOURLY
TAPE
124/13
5
STATISTICS FOR E—W(Ui AN) N—S(V) COMPONENTS
AVG(U) AVG(V) VAR(U) VAR(V) STO(U) STO4V) COV(UVP CRLTN
—9.2 —.2537
6.1
36.7
—3.3
35.4
.8
N
167 OEGREES(T)
=
3.4 C'lIS, DIR
VECTOR MEANI
JIRECTIONAL STEAJINESS: 40.9
7.
PRINCIPAL AXIS IS 137.3 OEGREES(T)
STATISTICS FOR COORDINATES ROTATED 45 DEGREES
135 OEGREES(T))
(EQUIVALENT ALONGSHORE
MILA
LEG .5
115
VARIABLE
N
'1
MEAN
3T3
SKEW
KURT
MAX
MIN
27.5
.8
(CM/S)
1669
.8.3
3.8
1.1
U (CM/)
1669
—1.8
5.2
.2
3.1
—16.0
(CM/S)
1669
-2.9
6.7
.1
3.1
—27.4
T(UEG C)
1669
1+.6
.3
—.1
3.0
c
V
15.4
13.7
190
115 A AT NOLA V.
77 — 14
S
my 77.
TAPE
1241/8
.LIIEAN
0.12
0.10
0.08
0.06
I
0.04
0.02
o co
3.8
9.0
6.4
11.6
14.2
16.8
21.9
19.3
24.4
26.9
29.4
31.9
34.3
SPEED. Cr1/SEC
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
0
20
40
60
80
100
120
140
160
DIRECTION.
180
200
220
240
260
280
300
320
340
360
DEGREES TRUE
LP CURRENT AT 115 0, PILA V.
69 OATS SING 100 6 PAR 7?
1001
100
I-
10
a!
U
0.1
—3
—2.3
—2
—1.3
—1
—0.5
0
FREOtIENCY. CYCLES
0.3
nAY
I
1.3
2
2.5
3
::::
> -30.00
15.50
15.00
C)
C.
14.00
I13.00
I APR
115 M AT MILA
69.5 DAYS STARTING
MAY
LEG 5*
100 GMT
HOURLIES)
6 MAR 1977
193
JOINT—lI 1977 Installation
IRONW000 V
Position*:
15°09.9'S, 75°32.9'W
Distance Offshore:
19.5 km
Bottom Depth:
Set:
205 m
Retrieved:
1546 GMT 16 March 1977 by R/V MELVILLE
1900 GMT 14 May 1977 by R/V ISELIN
2200 GMT 16 March to 1200 GMT 14 May
Longest Record Length:
58 days, 15 hours
Longest Data Interval:
Instrumentation
Accepted
Serial
Depth
Depth
Tape #
0m
20 m
40 m
60 m
100 m
150 m
175 m
0m
24 m
44 m
63 m
105 m
155 m
180 m
D124/13
746/25
Intended
Sampling
Interval
2124/5
689/26
688/35
1968/6
2130/6
20 mm
20 mm
20 mm
20 mm
15 mm
20 mm
20 mm
Measured
Variables
Sw,Ta,T
S,O,T,P,C
S,O,T
S,o,T,P,C
S,o,T,P,C
S,O,T
S,o,T
Comments
No acceptable direction data exist for the Ironwood meteorological
buoy (Dl24) due to failure of the buoy orientation sensor. The data
from the buoy water temperature sensor did not agree with pre- and
post—calibrations.
Temperatures from CTD casts (at 3 m) are drawn
on the time plots for comparison.
About 10% of the temperature data in the 1968/6 record were erroneous
and were replaced by linear interpolation.
* Navigation: radar fixes and Peru chart DHNM 2200. The position of
the meteorological buoy was estimated to be l5°09.O'S 75°32.9'W.
194
LEG
VAL
F1?S1 5
0 17
100 17
200 It
3 71
3 77
OF DAIAi
19.02 17.42
17.42
1.
17.52
5
15.68
15.68
15.69
1408
F IL 1' ER I N G
LOW PASS
H3U
U
2
3
77
17
3 77
5
5
11+
5 77
5
7
5
77
19.23
STATISTICS
IRONW000
LEG 5
OM
VARIMBLE
MEAN
STO
Ss(EW
KthkT
MAX
MIN
TW (OEG)*
16.0
1.0
.6
2.5
19.1
14.2
TA (DEG)
1. 8. 7
.8
.5
3.2
21.5
16.8
N
* Post- and pre-calibrations do not agree and data do not agree with
CTD casts.
See comments on installation sumary and in Appendix 2.
CTD values are plotted with the time series for comparison.
19.50
18.50
17.50
C)
CD
Iaj
0
16.50
a
15.50
14.50
OCTD TEMPERATURE OBS
13.50
-j
22.00
21.00
a
CD
19.00
1-
18.00
17.00
16.00
MAY
0
M AT IRONWOOD
58.7 DAYS STARTING
5: HOURLIES1
000 CMI 17 MAR 1977
—00
240
lAG
—210
—IRO
—200
-240
—550
—500
—420
—060
—1450
44 II AT 10040000.
24 II AT 200140000.
59.1 DAYS STARTING 1000 Id MA 55
65 0 AT IR000000.
19.2 OATS STARTING 2622 Id lIAR 55
50
-do
ISO
59.1 OATS STARTING 1625 10 21120 55
50
200
250
200
240
-50
-100
-250
-200
-250
-225
-200
—220
—3*5
155 II AT 155201000.
205 II lIT 100241000.
29.1 OATS STARTING 1600 Id lAIR 25
59.1 OATS STOAIING 2624 Id lAIR 55
$110 II fIT 10024*000.
59.1 OATS STARTING 26*6 *4 lIAR 55
-J
197
IRONW000
INTERVAL
HOURLY
TAPE P40
LEG
STATION
746/25
S
FIRST 5 LINES OF DMTA
23u0 16 3 7T 30.3 —22.2
2c.7
3 77 3C.u
0 17
3 77 30.7 —23.4
100 17
25.5 —21.4
3 77
200 17
300 17 3 77 21.2 —2+.3
30.3
60.3
91.0
llb.k
137.6
—22.2
48.9
—72.2
—93.7
—117.9
16.79
16.93
17.03
16.72
16.53
LAST 5 lINES OF DATAZ
13.6 —17.7
800 14 5 77
90011+ 5 77 21.5 —IC.7
24.8 —1.2
1u00 14 5 77
9.5
11u0 14 5 77 17.7
11.7 —13.2
1200 14 5 7
—530.9
—509.4
—4*4.6
466.9
—9291.7
—9302.3
—9303.5
—9312.9
—9326.1
16.18
16.35
16.64
16.49
16.48
—1+55.1
FILTERING
LOW PASS
243098
45.091
45.248
45.346
45.011
44.835
21+5489
44.198
242326
242085
243618
243672
44.528
k4.5t0
270452
262219
255130
24861+7
44.359
44.650
STATISTICS FOR E—W(U) AND N—S(V) COMPONENTS
CRLTN
AVG(UJ AVG(%I) VAR(U) VAR(V) STO(U) 510(V) COV(tJV)
—.5920
—110.4
12.1
15.4
—6.6 236.6 147.1
—.3
N
11+06
6.6 Cl/S, DIR = 183 OEGREES(T)
VECTOR MEANt SPO =
DIRECTIONAL STEAOINESS 34.8 7.
PRINCIPAL AXIS IS 124.0 OEGREES(T)
STATISTICS
45 DEGREES
COORDINATES ROTATED
O€GREES(Ti)
135
ALONGShORE JIRECTIOM
FOR
IRONW000 LEG
24
SKEW
KURT
lAX
HIM
7.9
1.5
6.6
5+.5
2.8
9.0
.1
2.5
20.6
—29.9
17.1+
-.2
2.5
31.7
—53.5
2.5
17.3
15.4
27.0
28.3
23.5
Sb
V
(CM/S)
T(OEG
P
C)
(OB4R)
1406
5
1
16.2
.6
+.6
198
24 II AT IRONI1000.
7? — 14 NAT 77.
16
TAPE
0.16
0.14
0.12
0.10
0.08
0.06
I
0.04
0.02
0.00
6.5
0
11.7
16.8
21.9
26.9
31.9
36,8
41.7
46.5
51.2
55.9
60.6
323 340
363
50E02,
0.0$
0.0?
0.06
0.05
C
0.04
0.03
0.02
0.01
o .oo
0
20
40
60
80
100
123
140 160 183 210 200
DIRECTION, lOCAlES
240
260
283
300
1000
100
0
10
0.1
—3
—2.5
—2
—1.5
—I
—0.5
0
0.2
FREQUENCY. CYCLES PER OAT
1
1.5
2
2.3
3
30.00
10.00
'— —10.00
—30.00
40.00
20.00
0.00
—40.00
—60.00
17.50
C,
16.50
C,
III
0
I-
15.50
14.50
29.00
28.00
26.00
a.
A
24.00
22.00
I..
g
i..'..
I APR
HOURLIES,
24 M AT IRONW000
58.6 DAYS STARTING 2300 GMT 16 MAR 1977
LII U.k A AIWb
MAY
200
STATION
OEPTH
LEG
IRON WOOJ
FIRST 5 LINES OF DATAt
2200 16 3 77 37.6 —27.6
32.1 —34.9
2300 16 3 77
0 IT
3 77
32.8 —32.6
100 17 3 77 36.2 —25.7
28.3 —24.8
200 17 3 17
LAST
5
14
900
10)0
1100
12)0
14
14
14
14
INTERVAL
HOURLY
TAPE NO
212/+5
5
37.6
69.7
138.b
166.9
LINES OF DATAI
17.3 —21.0
5 77
23.4 -21.9
5 77
5 77
23.3 —12.2
5 77
24.9 —4.9
—9.4
5 77
19.1
7104.2
7127.7
7151.0
1175.9
7195.0
FILTER ING
LOW PASS
1
2
3
4
—1'.5.'+
15.82
15.32
15.75
15.92
15.78
—8613.9
—8635.8
—8b48.J
—8o52.9
—8b62.3
15.46
15.53
15.63
15.3t
15.45
1403
1404
1405
1406
1407
—27.6
—62.5
—95.1
—120.6
5
STATISTICS FOR F—W(U) ANO N—S(V) COMPONENTS
AVG(U) AVG(V) VAR(U) VAR(V) 3TD(U) STO(V) COV(tJV)
—..'
IL..4
—129.6
13.1
N
VECTOR IEAN2
=
3.0 GuS,
OIRECTIONAL
CRLTN
—.6849
= 140 OEGREES(T)
2.1 Z
PRINCIPAL AXIS IS 131.0 OEGREES(T)
COORDINATES ROTATEO 45 OEGREES
STATISTICS
= 135 DEGREESCI])
(EQUIVALENT ALONGSHJRE
IRONW000 LEG S
VARIABLE
N
S
1407
U
1'+u7
(CMIS)
14u'
T(OEG C)
14C7
V
MEAN
—.7
15.6
STO
SKEW
KURT
MAX
FuN
9.1
1.6
6.0
62.0
2.3
7.3
—.0
2.6
t9.
—24.5
17.9
—Sc
2.6
.3.6
—61.8
.2
.5
2.9
16.6
15.0
201
41 II AT
16 1518 ?7 —
0.20
ii
lIllY ?7.
TAPE
2124/5
IMEAN
0.08
0.16
0.14
0.10
0.0!
0.06
0.04
0.02
0.1)2
•
?.3
f
12.2
*— —.
}
19.1
25.0
33.8
18.5
43.6
51.3
60.2
.,
I
66.1
I
'2.0
CF/SEC
0.02
0.10
0.08
U
C
a.
0.06
0.04
0.2
0
20
10
40
120
110
140
1811
222
211)
240
280 325
320
310
360
OF
1000
100
7
'U
U
10
I
0.1
—3
—2.3
—2
—1.3
-l
—0.5
F8LOUE'lCY
0
•
0.5
CTCLE3 DE! 010
1
1.3
2
2.3
3
20.00
10.00
—10.00
-
:1F
VI
'1,1
• II
—30.00
50.00
30.00
10.00
U)
—10.00
N)
> -30.00
—50.00
—70.00
17.00
1g.50
C.)
0
U
0
15.50
I.-
14.50
I APR
44 M AT IRONW000
LEG 5: HOURLIES,
58.6 OATS STARTING 2200 CMI 16 MAR 1977
I MAY
203
OEOTH
63
STATION
IRON WOOD
FIRST 5 LINES OF DATA:
16 3 77 39.4 —314.9
0 17 3 77 35.5
100 17
200 17
3 77
3 77
300 17
3 77
31.2 —34.3
900 14
lUuQ 14
1100 14
1200 114
5 77
5 77
655053
44.832
15.39
15.20
15.24
653b71
647450
641765
638345
44.832
44.827
44.653
44.693
10146.0 —10489.8
14.95
635905
44.344
10170.6 —10511.8
13193.4 —10531.9
10217.9
10245.2 —10553.1
14.87
637226
638010
637906
635614
44.251
44.371
44.387
44.190
106.0
136.7
164.6
30.7 —29.9
27.9 —28.6
24.5 —22.0
22.8 2C.1
24.6 —14.6
27.3 —6.7
FILTERING
LOW PASS
INTERVAL
HOURLY
NO
639/26
39.4
74.8
t.AST 5 LINES OF DATA:
800 11+ 5 77 21.8 —26.4
5 77
5 77
TAPE
—34.9
—70.2
—104.5
—134.4
—163.0
15.38
15.39
15.00
14.81
STATISTICS FOR E—W (U) APIO N—S(V) COMPONENTS
AVG(U) AVG(V) VAR(U) VARIV) STO(U) STD(V)
N
1
6
.3
-7.5
177.t
192.3
13.3
13.9
—jj9•1
CRLTN
—.6470
VECTOR MEANS SPC =
10.5
DIR = 136 OEGREES(T)
UIRECTIONAL STEADINESS: 53.1 Z
PRINCIPAL AXIS IS 136.8 O€GREES(T)
STATISTICS FOR COORDINATES ROTATED 45 DEGREES
(EQUIVALENT ALONGSHORE DIRECTION = 135 OEGREES(TJ)
IRONW000 LEG 5
63 1
VARIA3LE
S
N
(CM/S)
MEAN
7
STO
9,5
SKEW
KURT
MAX
MIN
1.8
6.9
62.6
1.5
U (CM/S)
14(6
—.2
8.1
.1
2.2
20.1
—19.1
(CH/S)
11+06
—10.5
17.4
—.2
2.7
26.2
—62.4
T(JEG C)
15.2
.2
.3
4.1
16.0
14.7
° (OBAR)
63.3
.5
5.0
3U.8
67.0
62.9
V
204
63 11 flT IRONU000.
0.le
TAPE dSP/3d
— 14 hAY 7?.
16 MAR
1.1IERN
0.16
0.14
0.12
0.10
0.0$
0.06
0.04
0.02
0.00
7.5
20.6
14.2
26.9
39.3
35.1
45.3
51.2
57.1
62.9
69.5
Cr/SEC
0.12
0.10
0.0$
0.06
0.04
0.02
-I---+-i-t
0.00
0
20
40
60
50
100
120
140
160
190
•
-,
-i
200
•-e—...-----.—.-.—.---,-—-.—t
220
240
260
250
300
320
340
360
TRUE
100
,-
10
I
0.1
—3
—2.5
—2
—1.5
—1
—0.5
0
•
0.5
CYCLES PER OAT
1
1.5
2
2.5
3
30.00
20.00 -
x
1.)
0.00
—20.00
:irv
30.00
10.00
—10.00
-30.00
-50.00
U,
—70.00
16.00
0
(p
15.00
I14.00
67.00
65.00
63.00
61.00
-.
I APR
63 N AT IRONU000
LEO
HOURLIES,
58.6 OATS STARTING 2300 GilT 16 MAR 1977
I MAY
206
STATION
IRONWOO!)
LEG
DEPTH
5
105
FIRST 5 LINES OF DATA!
2300 16 3 77 35.7 —35.6
0 17 3 77
33.1 —3e.8
100 17 3 77
3'+.9 —3C.7
200
3 77 32.5 —27.3
300 17 3 77 27.8 —32.1
TAPE
688f35
35.7
68.8
—35.6
14.56
—74•1
14.1.3
—105.1
—132.4
—164.5
14.54
14.55
14.47
9.3u5.0 —10352.7
14.42
14.36
136.2
164.1
LAST 5 LINES OF DATA:
800 14 5 77 26.3 —17.5
900 14 5 77 22.3 —22.0
1000 14 5 77
20.0 —18.3
1100
5 77
—15.8
120k, 14
5 77
—15.9
9327.4
9347.3
9366.8
9384.4
sTATIsTIcs FOR
AVG(U)
6.7
N
—10374.6
—10393.0
—10408.8
—10424.7
14.1.2
14.43
14.36
FILTERING
LOW PASS
1072159
1072023
1312021
1064954
1056400
1057467
1057123
1057095
1058072
45.288
1.5.200
45.329
45.346
45.270
45.239
45.162
1.5.223
45.231
45.156
AN) N—S(V) COMFONENTS
'IAR(U)
—7.L
INTERVAL
HOURLY
11.5.5
140.6
STOW) STOIV) COV(UV)
12.1
11.9
—99.2
CRLTN
—.6936
VECTOR MEAN!
=
10.0 CM/S, DIR = 138 OEGREES(T)
DIRECTIONAL STEADINESS! 58.2 Z
PRINCIPAL AXIS IS
DEGREES(T)
STATISTICS FOR
15 DEGREES
ROTATED
(EQUIVALENT ALONGSHORE OIRECTION
135 JEGREESCIJ)
IRONW000 LEG 5
1OSM
VARIABLE
N
MEAN
STO
SKEW
KURT
MAX
PuN
(CM/S)
14r6
17.1
9.6
2.0
7.6
58.9
1.2
U (CM/S)
1q06
—. 5
6.6
.1
2.2
19.0
—15.9
(CM/S)
1L+t6
—10.0
15.6
—.4
3.3
21.2
—58.9
.2
.0
2.8
15.2
14.2
.7
29.1
109.0
104.9
S
V
T(DEG C)
P
1.1
a
Ca
Ca
in
Ii'
0
0
(I
a
a
0
SPECNI1L. OENSITT
C.,
C,
4
(I
0
C
U
C,
0
t3
U
0
Ca
en
0
a
Ca
C)
Cl
I,
0
Ca
a
0
a
0
a
0
0
Ca
0
P
P
2
P
P
RELATIVE
0
0
0
0
C,
U
CI
a
0.
0
Cl
0.
U
U
0
a
en
Cl
CI
0.
U
In.
Pu —
0
a
U
U
0
o
0
0
0
14
o
0
a
0
0
b
0.
•0
0
0
0
14
0
0
a
RELATIVE FREGUENCY
0
0
0
..
o.
0
0
Ca
0
I
0
14
a
.4
a
0
0
U
20.00
0.00
—20.00
30.00
20.00
0.00
-20.00
>
—40.00
—60.00
N)
15.50
0
0
w
a
14.50
I-
13.50
-
109.00
107.00
-a-
w
a
105.00
a-
103.00
ii
1111111 IIIHIIIII 11)111111,,
IMAY
IAPR
105 14 AT IRONW000
LEG 5:
HOURLIESS
59.9 OATS STARTING 2300 C14T 19 MAR 1977
209
STATION
IRONW000
LEG
DEPTH
5
155
FIRST 5 LINES OF DATA:
2300 16 3 77
22.i. —31.6
0 17
3 77
luO 17
200 17
300 17
3 77
3 77
3 77
23.3
22.2
22.0
22.4
—28.2
—27.6
—25.0
—19.9
LAST 5 LINES OF DATA:
830 14 5 77 13.5 —19.1
900 1'.
5 77
15.5 —17.2
5 77
i5.o —18.0
1100 14 5 77 16.6 —17.1+
5 77
17.7 —12.9
TAPE NO
196/36
INTERVAL
HOURLY
22.1
45.4
67.5
89.5
111.9
—31.6
—59.8
—87..
—112.4
—132.3
13.82
13.8C
13.79
13.79
13.76
5552.7
—8277.0
5583.2
—8312.2
5617.5
—831+2.5
13.88
13.80
13.76
13.80
13.76
FILTERING
LOW PASS
1
2
3
4
5
1402
1403
1401+
11+05
1406
STATISTICS FOR E-W(U) AND N—S(V) COMPONENTS
N
AVG(U) AVG(V) VAR(U) VAR(V) STO(U) 510(V) COV(UV) CRLTN
.3
—5.9
71.5 114.3
8.5
10.7
—70.5
—.7 803
VECTOR MEAN: SPC =
7.2 CM/S, DIR = 1'+6 OEGREES(T)
OIRECIIONAL STEADINESS: 52.6 %
PRINCIPAL AXIS IS 143.5 )EGREES(T)
STATISTICS FOR COORDINATES ROTATED
(EQUIVALENT ALONGSHORE
45 DEGREES
1
N
S
1q06
U (CM/S)
1406
(CM/S)
T(DFc, 0)
11+06
MEAN
STO
SKEW
KURT
MAX
MIN
13.6
7.2
1.5
5.9
(+8.1+
.1
.3
2.8
14.8
—13.2
—'7.è
12.8
—.1
2.6
21.3
—48.2
13.9
.3
.0
3.3
14.9
12.9
210
155 N AT IRONU000.
16 lIAR
15.3
19.9
14
fIAT 7?.
24.5
29.1
—
TAPE 1968/6
0.15
0:16
0.14
0.12
0.10
U.
0.08
C
0.06
d
0.04
0.02
0.00
6.1
0
10.?
52.2
47.6
43.0
38.4
33.8
SPEED.
0.16
0.12
0.10
0.08
0.06
-J
x
0.04
0.02
0.00
20
0
40
80
60
100
120
180
140
200
OC(?001S
220
240
260
53 OPTS 3TNG 2300
LP CURRENT AT 155 N.
230
300
321
340
360
TRUE
16
77
1000
100
z
-I
C
10
U
a.
9,
1'
V
—3
—2.5
—2
—1.S
—1
—0.3
0
CYCLES
0.5
OPT
1
1.5
2
2.5
3
20.00
0.00
LA. JL..
.
. .
.
v9,.
.
. Lii. i.
it.
. .
'V
-20.00
30.00
10.00
U,
—10.00
N)
—30.00
—I
—50.00
15.00
14.00
C,
13.00
12.00
I APR
L.EC 5: HOURLIES,
155 N AT IRONW000
5R.6 OATS STARTING 2300 CMI 16 MAR 1977
I MAY
212
STATION
IRON WOOD
LEG
DEPTH
5
180
FIRST 5 LINES OF DATA:
2366 16 3 77. 17.1 —29.6
0 17
3 77
18.9 —25.5
130 17
3 77 19.7 —26.3
200 17
330 17
3 77
3 77
17.1
36.0
55.7
76.1
20.4 —23.9
16.3 —19.2
LINES OF DATA:
5 77 14.4 —11.0
14 5 77 10.4 —11.6
14
5 77
8.7
—9.0
14
5 77 10.8 —12.5
14
5 77
—10.7
LAST
INTERVAL
HOURLY
TAPE NO
213F06
—29.0
—54.6
—80.9
FILTERING
LOW PASS
13.TG
13.73
13.74
I
2
3
—104.7
13.71
—124.6
13.69
5
—7672.2
—7683.8
—7692.7
—7735.2
—7715.9
13.60
13.43
13.34
13.52
13.52
1402
1403
1404
1405
1406
4
5
800
900
1600
1106
1200
5410.7
5421.1
5429.8
5440.6
5455.3
STATISTICS FOR E-W(U) AND t4—S(V) COMPONENTS
AVG(U)
N
3..9
—5.5
VAR(U) VAR(V) STO(U) STO(V) COV(UV)
CRLTN
9.2.
—43.8 —.6810
83.6
VECTOR MEAN: SPO =
6.7 C'l/S, DIR = 145 OEGREES(T)
DIRECTIONAL STEADINESS: 57.6 7.
PRINCIPAL AXIS IS 145.6 OEGREES(T)
STATISTICS FOR COORDINATES ROTATED 45 DEGREES
(FQUIVALENT ALONGSHORE DIRECTION = 135 DEGREESET])
IRONW000 LEG 5
180 M
VARIA3LE
S
(CM/S)
N
1406
STO
SKEW
KURT
MAX
11.7
6.5
1.3
4.9
38.8
.8
.2
3.6
14.2
—15.6
16.5
—.1
2.6
16.4
—37.4
.5
—.0
2.6
—1.1
U
V
MEAN
—6.6
(CM/S)
T(OEG C)
1+u6
12.0
213
16 lIAR 77 - 14 PRY 77.
180 ii AT IRO'6U000.
TAPE 2130/6
.1 MEAN
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
9.0
5.2
12.8
16.6
SPEES,
27.9
24.1
20.7
Ill/SEE
71.7
35.5
39.2
42.0
300
7)1 340
360
2.3
3
0.14
0.12
0.10
0.08
0.06
I
0.04
0.02
0.00
0
20
40
60
50
100
123
143
160
183
200
DIRECTII). 001R515
lJ cURRENT AT 130 P. 100NIIOOD.
240
22C
260
280
TRUE
38 0RT3
CTN
2300 16 MAR 77
100
us
0.3
0
CYCLES PER DAT
1
1.5
2
20.00
-
-I
r
d hd1 I IAJia I L Ii.
-
-
nvv'y'v
r
u
•" .111.,TIvrrr
—20.00
20.00
0.00
-jN)
—20.00
—40.00
15.00
14.50
13.50
w
a
12.50
11.50
-r
IAPR
180 P4 AT IRONWOOD
LEG 5z HOURLIES,
80.8 OAVS STARTING 2300 0141 18 MAR 1977
I
IMAY
215
JOINT—lI 1977 Installation
LAGARTA V
POSition*:
Distance Offshore:
Bottom Depth:
Set:
Retrieved:
Longest Data Interval:
Longest Record Length:
15°1O.O'S, 75°36.O'W
24.0 km
620 m
1753 GMT 15 March 1977 by R/V MELVILLE
1804 GMT 14 May 1977 by R/V ISELIN
0100 GMT 16 March to 1000 GMT 14 May
59 days, 10 hours
Instrumentation
Intended
Depth
Serial
Sampling
Depth
Tape #
Interval
Om
0m
92 m
115 m
214 m
512 m
D128/7
756/21
755/23
500/41
1238/9
75 m
100 m
200 in
500 m
Accepted
20 mm
20 mm
Measured
Variables
Sw,T
20 ruin
15 ruin
S,O,T,P,C
S,O,T,P,C
S,O,T,P
15 mm
S,e,T,P
Coments:
The meteorological buoy at Lagarta (D128) was set 9 days earlier
than the current meters, on 6 March 1977. Speed and water temperature
were satisfactorily recorded for 69 days, but no acceptable data were
recorded for direction and air temperature. The data from the buoy
water temperature sensor did not agree with pre— and post-calibrations.
The data from D128/7 have been kept for possible future use but are not
considered reliable in their present form and are not described in this report.
Current meter 1242 was placed at an accepted depth of 313 m (intended
depth = 300 m) but no intelligible data could be read from the tape.
* Navigation: radar fixes and Peru chart DHNM 2200. The position of the
Lagarta V meteorological buoy was estimated to be 15°1O.8'S 75°35.2'W.
hOG
-100
-(00
200
400
-300
-400
-500
ItS METERS AT LACARTA.
P2 tW.TCRS AT LA041RTA.
-i
0•.
15 lIAR 77 - 14 IVIT 77.
TAPE 753122.
15 lIAR 7? - 14 ART 77. TAPE 754/21.
-50
214 IlflERg AT
15
ftAq 7? - 14 hAY 7?.
TAPE
500/41.
5(2 IIETERS hIT LACflRTR.
(5
—
(4 hAY 7?.
TAPE
217
STATION
DEPTH
LEG
92
5
FIRST 5 LINES OF DATA:
100 16 3 77
26.1 —24.5
200 16 3 77 25.5 —25.2.
300 16 3 77 26.8 —24.6
4Ju 16 3 77 28.3 —22.0
52u 16 3 77 26.9 —23.5
TAPE NO
756/21
—24.5
—49.6
—74.2
—96.3
—119.8
14.60
14.63
14.61
14.54
14.54
943988
937931
934189
933298
932373
37.515
37.542
37.521
37.455
37.452
11987.9 —13851.A4
12u.32.0 —13867.8
—13876.8
14.43
14.38
14.57
14.49
929008
935054
943349
947717
12074.5 —13885.9
14.L.4
91+7673
37.364
37.311
37.489
37.411
37.379
26.1
51.5
78.3
106.7
133.6
5 LINES OF OATA
5 77 18.4 -12.0
700 14 5 77 19.5 —9.1
800 11.
5 77
24.6 —7.3
90u 11+ 5 77 22.0
-9.u
1000 14 5 77 20.5 —9.1
FIITERING
LOW PASS
INTERVAL
HOURLY
LAST
600 11+
12007.4 —13860.5
STATISTICS FOR E—W(U) AND
AVG(U)
N
1426
8.5
—9.7
155.7
COMPONENTS
VAR(V) 510(U) STD(V) COV(UV) CRLTN
—93.9 —.7617
108.4
12.5
12.9 CM/3, DIR = 139 OEGREES(T)
DIRECTIONAL STEADINESS: 74.7 Z
MEANS SPO
PRINCIPAL AXIS IS 128.3
DEGREES
(EQUIVALENT ALONGSHORE DIRECTION = 135 DEGREEStI))
LAGARTA LEG 5
92 M
N
MEAN
STO
SKEW
KURT
MAX
MIN
(CM/S)
IL#26
17.3
11.5
1.'
4.5
U (CM/S)
1426
—.9
5.8
.1
2.7
16.8
—17.6
(CM/S)
1426
—12.9
15.2
—.5
3.0
17.0
—58.3
'(OEG
14..8
.2
—.5
2.9
15.3
14.0
P (OFAR)
92.0
3.2
4.0
1.5
114.4
90.4
S
V
.9
218
92 METERS RT LRGRRTR.
15 MAR 77 — 14 MAY 77.
TAPE 754/21.
0.13
0.0•9
0.18
0.07
2:
0.06
0 .C4
0.03
0.02
0.01
0.10
7.1
13.0
18.7
24.4
33.o
3S.6
41.1
46.5
'31.3
57.1
62.3
SPEED, CM/SEC
0.18
0.26
0.14
0.12
2:
0.10
0.08
C
d
C
0.06
0.04
0.02
3.00
3
20
40
60
83
103
120
143
160
180
230
223
240
241
280
300
323
340
260
DIROCTION, CECRZE5 TRUE
0000
100
2:
C.
a'
10
L9
—2.5
—2
—1.5
—1
—0.5
0
0.5
FREQUENCY. CYCO.E3 PER OAT
1
1.5
2
2.5
3
219
20.00
20.00
—
0.00
(a
-20.00
> -40.00
-60.00
3.5.50 1•
0
14.50
0
13.50
13.5.00
115.00
111.00
103.00
107.00
105.00
103.00
0
101.00
93.00
87.00
35.00
33.00
91.00
88.00
MAY
92 14
LAGAR?A
53.4 DAYS STARTING
LEG 5
HOURLIES,
3.00 SMY 16 MAR 1377
220
STATION
LEG
DEPTH
5
115
FIRST 5 LINES OF DATA:
16 3 77 32.6 —2'+.3
16 3 77 29.3 -19.8
300 16
3 77
27.1 —17.5
400 16 3 77 26.9 —17.9
5faU 16
3 77
25.8 —17.0
LAST
5
600
700 14
800 iLl
lIe
10'i0 it4
TAPE NO
755/23
INTERVAL
FILTERING
HOURLY
LOW PASS
.32.6
—24.3
61.9
89.1
1
116.0
141 • 8
14.06
14.00
14.03
-61.6
—79.5
—96.5
13.97
1181647
1175709
1173707
1173317
1172320
41.516
41.443
41.470
41.565
41.406
14.00
1169360
14.11
LINES OF DATA:
5 77
5 77
5
77
5 77
5
77
19.2 —15.1
20.6 —15.9
23.8
—1 0.
25.7
24.7
10487.1 —12333.6
IODOT.7 —12348.6
10531.5 —12358.5
10557.3 —12365.8
—12370..,
.0
—7.2
—4.6
14.00
14.18
14.14
14.12
1180601
41.134
41.139
41.334
118'. 614
41. 2 85
1185188
41.261
11 74874
FOR F—W(U) AN) N—Sty) COMPONENTS
M/G(U) AVG(V)
7.4
—8.7 153.1
N
VARfV) ST0(U) STO(V) COV(UV) CRLTN
12.1+
112.5
1.0.6 —lOli.3 —.7950
VECTOR MEAN: SPQ =
11.4 CM/S, DIR = 139 OEGREES(T)
DIRECTIONAL STEADINESS: 71.2 Z
PRINCIPAL AXIS IS 129.5 DEGR€ES(T)
STATISTICS
GOOROIWATE.3 ROTATL 0
'+5 DEGREES
(EDUIVALENT ALONGSHORE DIRECTION = 135 CEGREESCTI)
LAGARTA
LEG 5
115
VA4kIA9LE
S
N
(CM/S)
IIEAN
STO
16.0
11.8
5.3
U (CM/S)
1'+26
—.9
(CM/S)
1426
—11.'+
T(DEG C)
1426
P
.3
116.t.
2.9
KURT
MAX
MIN
4.9
61.8
.2
.3
3.2
16.2
—15.8
—.6
3.3
23.7
—61.7
—.2
2.7
15.2
13.7
18.8
136.2
114.1
SKEW
221
115
15
AT
77 - 14 tlAl 77.
755/23.
0.12
1
0.L0
0.08
0.06
0.04
0.02
0.00
81.8
46.5
41.1
18.7
a
07.1
62.3
47.4
5PE02, Ch/SEl
0.16
0.14
0.10
,_
1.,
C
8.15
H
0.16
-.3
0.04
1.82
0.00
0
20
40
60
80
100
120
180 233 220 240
DZRZITICN, OiIREES TRUE
140
260
280 300
820
340
360
1000
•
130
z
-.3
C
C,
0.1
—3
—2.5
—2
—1.5
—1
—0.0
0
1.5
IYCLE3 PER
OAT
1
1.8
2
2.5
3
222
U)
20.00 T
0.00
10.00
Ut —10.00
.-
wv
i
•lI•%
i if rr A11A1Pkl
i.
•
tiii i • 1111
it,iiii
Iii)
xa
-30.00
-50.00
-70.00
15.50
15.00
a
C,
14.00
I13.00
137.00
135.00
133.00
131.00
123.00
127.00
125.00
123.00
121.00
113.00
117.00
115.00
113.00
IAPR
115 N AT
53.4 DAYS STARTING
IMAY
LEG 5: HOURLXES1
100 GMT 16 MAR 1577
223
STATION
LAGARTA
LEG
DEPTH
5
21.4
FIRST 5 LINES OF
103 16 3 77
3.5
200 16 3 77
3.7
3CC 16 3 77
2.6
4CC 16 3 77
1.5
3 77
530 16
1.4
—8.7
—5.0
—8.5
—9.1
TAPE NO
500/41
3.5
7.1
9.7
11.2
12.6
LAST 5 LINES OF DATA!
600 14 5 77 19.1 —11.4
700 14 5 77 20.2 —15.1
5 77 21.1 —17.3
800 11+
5 77 22.1 —15.2
14
ICOC 14 5 77
23.3 —15.3
392.4
412.6
433.7
479.1
FILTERING
LOW PASS
INTER VAL
HOURLY
—8.7
—16.8
—25.6
12.53
12.56
12.54
12.45
2171+31+9
2167024
1
2
2161+119
3
—44.9
1.2.47
2161801
2160011
—1232.3
12.92
13.05
13.06
13.02
13.02
2154100
2160294
21E8196
2174109
2175324
—124.7.1+
—1264.4
—1279.6
—1295.0
1+
5
1422
1423
1424
11+25
1426
STATISTICS FOR E—W(1J) AND N—S(V) COMPONENTS
CRLTN
AVG(U) AVG(V) VAR(U) VAR(V) 310(U) STD(V) COV(UV)
—73.8
.3
8.9
79.6
—.9
N
1426
VECTOR MEAN$ SPC
1.0 Ci/S, DIR = 160 DEGREES(T)
OIRECTIONAL STEADINESS!
5.5
7.
°RINCIPAL. AXIS IS 130.0 DEGREES(T)
S1ATISTICS FOR COORDINATES ROTATED 45 DEGREES
(EQUIVALENT ALOMGSHORE
= 135 OEGREESETJ)
LAGARTA LEG 5
214 1
VARIA3LE
S
(CM/S)
N
1426
STO
SKEW
11.4
7.5
1.0
—.4
U
V
MEAN
(CM/S)
T(DEG C)
P (OBAR)
1426
—.9
.1
12.9
12.6
2.6
MAX
MIN
37.8
.2
2.8
1.2
—14.1
2.9
34.7
—37.8
3.1
13.5
11.5
20.5
233.5
213.8
KURT
224
214 IIETEAS AT i.A0ARTA.
0.09
15 TAR 7? — 14
rAT 7?.
TAPE 500/43.
LNEAN
0.38
0.0?
0.06
LI
z
a
U
.05
0.04
0.02
0.02
0.01
0.00
4.?
0
8.2
11.6
15.1
18.5
SPEED.
21.9
28.6
31.9
25.2
38.4
41.?
44.9
CTISEC
0.19
0.08
3.3?
0.06
LI
a
C
0.35
0.04
C
0.03
0.02
0.01
0.03
0
20
40
60
80
100
120
340
260
280
200
520
240
360
DIRECTION, DECREES TRUE
1000
4,
z
10
0.0
—2
—2.5
—2
—1.5
—z
—c.s
3
0.5
FEO'JENCT. CYCLES PER CAY
1.3
2
2.3
2
225
00
rA
I
.
-
L
..LL4aL
...
I
..a.
w vwr
-20.00
40.00
—
20.00
U)
0.00
> -20.00
—40.00
2.3.50
2.3.00
0
C,
12.00
2.1.00
Z34.00
232.00
Z30.00
228.00
226.00
224.00
" 222.00
0.
220.00
218.00
216.00
214.00
22.2.00
I MAY
214 N AT LAGARTA
59.4 DAYS STARTING
LEG 5
HOURUES1
100 ONT 16 MAR 1977
&i.d it
226
STATION
LAGARTA
LEG
DEPTH
5
512
FIRST 5 LINES OF DATAT
0.8
3 77 —5.1
100
0.9
-2.4
3 77
200 16
1.3
—0.3
3 77
0.2
—0.8
16 3 77
—1.1
500 16 3 77
—5.1.
—7.'+
—7.7
—8.5
—9.5
LAST 5 LINES OF OATAt
-3.6
k.3
600 14 5 77
—1.6
3.3
5 77
700 j1
6.2 —0.5
5 77
800
.7
.8.9
—1.1.
20*3.5
2046.8
2653.0
2061.8
5 77
8.3
0.1+
.2070.1
5
9C3 1'.
14
INTERVAL
HOURLY
TAPE NO
123/89
0.8
1.7
2.7
6.9k
6.94
6.79
FILTERING
LOW PASS
1
2
3
2.9
6.65
4
1.5
6.71
5
8.28
8.14
8.23
8.33
8.17
1422
1423
1424
1425
1426
—605.6
—606.7
—606.1.
STATISTICS FOR E-W(U) AND t4—S(V) COMPONENTS
CRLTN
AVG(U) AVG(4) !AR(U) \IARIV) STO(U) STO(V) COV(UV)
—.6192
—12.3
3.1
6.!
39.7
N
1.5
11.26
1.5 CM/S, DIR = 106 DEGREES(T)
VECTOR MEAN: SPO
DIRECTIONAL STE.AOINESS$ 27.1
7.
PRINCIPAL AXIS IS 109.7 OEGREES(T)
DEGREES
COORDINATES ROTATED
STATISTICS
CEGREES(fl)
(EQUIVALENT ALONGSHORE JIRECTION = 135
LAGARTA LEG 5
512 H
VARIABLE
N
tIEAN
STO
SKEW
KURT
MAX
MIN
1.1
3.6
22.0
.1
—12.2
S
(CM/S)
11.26
5.6
(CM/S)
11426
•7
3,5
.3
3.2
12.8
U
V
(CM/S)
11.26
—1.3
6.1
—.3
3.7
18.'+
3.2
8.4
T(OEG C)
7.3
6.5
227
512 ME1ERS Al LACflRTR.
15 MMR 77 — 14 MAY
77.
lAPE
1238/9.
.I.MEMN
0.30
0.25
0.20
0.15
IsZ
3.05
ii
0.00k
2.9
0
up uuuiiiii
6.4
4.7
8.2
9.9
nip
11.6
13.4
15.1
16.8
18.5
20.2
21.9
23.6 25.2
Cr/SEC
3.09-
0.08
ri
1
0.37
0.26
,-
0
0.05
1.3
1..
1.1
0.04
0.03
0.02
C.0t
0.00
0
23
40
60
30
100
120
143
160
180
200
223
240
260
283
300
320
340
36C
CCCREE5 TRUE
100
—3
—2.5
—2
—1.5
—1
—0.5
FRE1U!NCf •
0
0.3
PER
1
1.5
2
2.5
2
20.00
000
p
ii
—20.00
20.00
> —30.00
v.00
I LI 1111111 I IIII III U 111111111 I"""I I I
I I
I It I I (iii I UI I
IMAY
IAPR
512 M AT LAGARTA
59.4 DAYS STARTING
LEG 5: HOIJRUESS
100 CNT 16 MAR 1977
• lilt II
229
JOINT-Il 1977 Installation
LOBI VIA V
Posi tion*:
Distance Offshore:
15°1l.5'S, 75°34.3'W
Bottom Depth:
Set:
Longest Data Interval:
580 m
1951 GMT 15 March 1977 by R/V MELVILLE
1847 GMT 11 May 1977 by R/V ISELIN
0300 GMT 16 March to 1100 GMT 11 May
Longest Record Length:
56 days, 9 hours
Retrieved:
24.0 km
Instrumentation
Intended
Accepted
Serial
Depth
Depth
Tape #
25 m
50 m
150 m
250 m
58 m
83 m
183 m
283 m
748/28
749/28
1244/8
2284/4
Sampling
Interval
20 mm
20 mm
15 mm
15 mm
Measured
Variables
S,e,T,P,C
S,O,T,P,C
S,e,T
S,O,T
Coments:
The data from RCM 749 were of mixed quality, and three extensive
sections were eliminated, leaving the following four segments of data:
1.
2.
3.
4.
0300
0500
1200
1600
March through 1700 GMT 24 March (8 days, 15 hours)
March through 1200 GMT 28 March (1 day, 8 hours)
5 April through 0400 GMT 12 April (6 days, 17 hours)
21 April through 1100 GMT 11 May (19 days, 20 hours)
GMT 16
GMT 27
GMT
GMT
Current meter 1245 was placed at an accepted depth of 383 m (intended
depth = 350 m) but no intelltgible data could be read from the tape.
* Navigation: radar fixes and Peru chart DHNM 2200.
230
50
-50
100
150
200
-100
—150
-200
-250
83 M AT LOBIVIA.
2050 15 lIAR 77 - 2330 24 lIAR 77.
50
50
-50
50
-50
•3 11 AT LOBIVIR.
-50
50
50
— 1850 28 MAR
83 II AT LOBIVIA.
50
-50
—50
2210 26 MAR 7?
-50
0510 5 APR 7?
— 1010 12 APR
83 11 AT LOBIVIR.
1010 21 APR 7?
- 1750 11 MAY 7?.
231
200
5e
AT
—
11 flRT ??.
400
120
160
74$12$.
iLl
—75
—60
AT %.OBZYIA.
—45
2S3 tETERS At LCEY1A.
15
7?
- ii
rJW 7?.
—20
*5
7? -
21
7?.
22*414.
124412.
200
240
232
STATION
LOBIVIA
LEG
DEPTH
S
FIRST 5 LINES OF OATAI
300 16 3 77
—26.6
400 16
3 77 16.1 —21.3
500 16
3 77
600 16
700 16
3 77
3 77
LAST
18.4
1000
15.30
15.34
70.4
88.7
8751.7
8760.6
8770.7
8776.6
8779.5
—11227.8
—11243.7
—11256.8
—11266.8
—11279.4
15.12
15.06
15.03
15.33
51.9
17.3 —27.3
18.6 —27.9
18.2 —32.4
LINES OF OATAs
5 77
7.0 —18.8
Ii
5 77
8.9 -15.8
11
5 77 10.1 —13.1
11
5 77
5.9 —10.8
11 5 77
2.9 —12.5
LOW PASS
—26.6
—53.9
—80.9
—108.8
—141.2
34.5
15.32
15.33
5
616773
609756
601444
604363
614791
43.371
43.1+17
43.1+82
43.392
43.391
.
630 ii.
700
800
930
HOURLY
71+8/28
567081
567014
567502
566666
566389
43.166
43.114
1+3.079
43.072
43.057
STATISTICS FOR E-W(U) ANO N—S(V) COMPONENTS
AVG(U)
r4
1352
6.5
VARCU)
—8.3
151.1
VAR(V) 910(U) 510(V) COV(UV) CRLTN
12.3
12.1 —113.5 —.71+01
11+7.6
VECTOR MEAN: 5PC
10.6 C1/S, OIR = 142 OEGREES(1
DIRECTIONAL STEADINESS: 6'+.l Z
PRINCIPAL AXIS IS 134.5 DEGREES(T)
STATISTICS
(EQUIVALENT
COORDINATES ROTATED '+5 DEGREES
= 135 OEGRE€S(TI)
LO8IVIA LEG S
58 M
N
MEAN
$10
SKEW
KURT
MAX
PUN
5.6
6.2
.2
S (CM/S)
1352
16.5
11.8
U (CM/S)
1352
—1.3
6.2
.1
2.8
16.9
—20.8
—10.5
16.1
—.7
3.5
22.1
—68.9
15.3
.2
.2
3.9
16.0
14.1+
58.0
4.13
71.7
88.1
56.0
V
(CM/S)
T(OEG
P
C)
1352
233
58
AT
— 11 MAY
15
TA?E p48/28.
3.16
0.14
0.12
0.10
0.08
II.
hi
0.06
-J
U
0.04
0.02
8.4
15.5
22.5
29.4
36.2
42.9
49.5
55.9
62.3
68.5
896E0.
0.14
0.12
0.13
0.08
0.36
I0.04
0.02
0.00
0
20
40
60
80
103
120
163 185 203 220
DIREST1ON. 05086E5 TRUE
140
210 263
280
300
320
340
360
1000
too
hi
z
10
J.1
5.1.
—3
—2.5
—2
—1.5
—1
-
.
.
—0.5
0
0.5
STOLES TER OAT
1
1.5
2
2.5
3
234
Z0.00
10.00
I.
.!rr
-10.00
30.00
10.00
—10.00
>
—50.00
—70.00
16.50
14.50
13.50
83.00
87.00
85.00
83.00
81.00
79.00
77.00
75.00
73.00
C
71.00
65.00
67.00
65.00
63.00
61.00
53.00
57.00
55.00
I APR
58 P4 AT LOBIVIA
56.3 DAYS STARTING
LEG 5
HOORLIES,
300 GMT 16 MAR 1.377
235
STATION
DEPTH
LEG
TAPE NO
33
5
FIRST 5 LINES OF OATAt
300 16 3 77 24.3
430 16 3 17 23.0 —23.5
500 16 3 77
19.6 —24.5
600 16 3 77
21.7 —24.8
700 16 3 77
21.6 —21.9
24.3
47.3
66.9
88.7
110.3
LAST 5 LINES OF DATA:
700 11
5 77
4.1. —12.3
BoO 11 5 77
5.1 —11.5
900 11
5 77
2.9
1300 11
5 77
—17.7
1100 11
5 77
0.8 —16.9
—451.8
—446.6
—443.7
—439.6
—438.7
INTERVAL
FILTERING
HOURLY
LOW PASS
—46.4
—70.9
—95.7
—123.6
1063.7
ii)'+9.1
14.87
14.85
14.91
14.87
14.87
847799
845660
846995
850946
43.002
43.009
14.78
14.82
816513
817456
817234
817345
817236
42.902
42.952
42.876
43.056
14.76
1019.9
10t32.u
43.021
42.987
14.69
14.80
'+2.799
42.921
STATISTICS FOR E—W(U) AND N—S(V) COMPONENTS
AVG(U)
N
5.4
876
AVG(V) VAR(U) VAR(V) STO(U) STD(V) COV(UV)
—7.0
171.3
2C6.7
13.1
14.4
—147.1
CRLTN
—.7816
VECTOR MEANt SPO =
8.8 CM/S, DIR = 142
JIRECTIONAL STEADINESS: 51.9 Z
PRINCIPAL
AXIS IS 138.4
OEGREES(T)
STATISTICS
45 DEGREES
COORDINATES ROTATED
(EQUIVALENT ALONGSHORE DIRECTION = 135 OEGREES(T1$
LOBIVIA
LEG
83
5
'1
N
MEAN
$10
SKEW
KURT
MAX
MIN
S
876
17.G
12.9
1.7
5.4
71.3
.8
U (CM/S)
376
—1.2
6.5
.2
15.0
—19.5
(Ct'i/S)
876
—3.7
18.3
—.9
3.3
21.8
—70.1
.2
—.6
3.0
15.4
1.4.3
4.5
3..
1'+.6
112.1
80.8
V
T(OEG C)
P
876
83.1
236
ES IIETERS AT LOBIVIA.
15 SIAR fl — 11 (lAY fl
TRF'E ?49/28.
0.18
0 •
16
0.14
7.12
0.10
0.08
d
0.06
0.04
0.02
0.00
0
8.4
15.5
22.5
29.4
42.9
49.5
55.9
SPEEO, CM/SEC
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
68.5
?4.?
237
20.00
0.00
—20.00
30.00
20.00
0.00
—20.00
—40.00
—60.00
—80.00
15.50
0
C,
U)
14.50
13.50
113.00
111.00
109.00
107.00
105.00
103.00
101.00
99.00
97.00
95.00
0.
33.00
si-Do
89.00
87.00
85.00
83.00
81.00
LLA
79.00
IMAY
83 P4 AT LOBIVIA
56.4 DAYS STARTING
LEG 53
HOURLIESa
300 GMT 16 MAR 1977
238
STATION
LEG
DEPTH
1081 I A
5
193
TAPE NO
INTERVAL
HOURLY
FILTERING
LOW PASS
FIRST 5 LINES OF DATA:
3
3
3
3
3
77
77
77
77
—15.4
—16..
—16.6
—19.4
16.2
20.8
26.2
LAST 5 LINES OF DATA:
700 11
5 77 13.0 —14.3
800 11 5 77 12.9 —14.5
90J 11
5 77 14.8 —14.9
11
5 77 1.6 —14.2
1100 11
5 77
1'..4 —17.1
3768.4
3781.3
3796.2
3814.7
3829.1
5G0 lb
600 16
YOu 16
6.0
5.1
4.5
5.4
—30.3
—46.7
—63.3
—82.7
13.23
13.22
13.24
13.29
—4125.1
13.49
13.53
13.34
13.25
11.1.
—'+139.6
—4154.5
—4168.8
1
2
5
1350
1352
STATISTICS FOR E—W(U) AND N-S(V) COMPONENTS
AVG(u)
N
2.R
—3.1
MEAN:
VAR(I.J) VARtV) 510(U) STO(V) COV(tJV) CRLTN
112.8
110.8
1C.6
lt.5
—. 811+4
—91.0
4.2 CM/S,
=
OIR =
DIRECTIONAL STEADINESS: 32.9 Z
PRINCIPAL AXIS IS 134.7
DEGREESIT)
OEGREES(T)
STATISTICS FOR COORDINATES ROTATED
45 DEGREES
(FQUIVALENT ALONGSHORE DIRECTION = 135 OEGREES(TJ)
LOBIVIA
LEG S
183 M
VARIABLE
N
MEAN
STO
SKEW
KURT
MAX
MIN
S (CM/S)
151
12.7
8.9
1.4
4.9
1.8.2
.3
U
(C'4/S)
1353
—.2
.6
.4
3.1
17.1
—12.2
'I
(CM/S)
1353
—4.2
—.5
3.2
30.8
—48.0
T(OEG C)
135.3
13.3
—.3
3.4
14.4
12.G
239
183 PETERS AT LOBIVOR.
0.12
15 PAR 7? — 12 NAY 7?.
TAPE 1244/3.
JMEAN
0.10
0.03
0.06
w
0.04
0.02
0.00
5.5
9.9
14.2
18.5
22.7
26.9
31.1
35.2
39.2
4?.3
43.3
51.2
SPEED. CA/SEC
0.12
0.10
0.0$
,.
'ii
0.06
d
0.04
0.02
0.00
42
60
80
100
120
140
160
180
200
220
240
260
230
300
020
240
360
DIRECTION, CEOREES TRUE
1000
100
z
to
—2.5
—2
—1.5
—t
—0.5
0
0.5
CYCLES PER DAY
1
1.5
2
2.3
3
20.00
-r
w'
.i
I...
J14.h1&1.
.
MJ_A
—-
-
-20.00
40.00
30.00
G
10.00
a-
-
.
1.
—10.00
—30.00
-50.00
14.50
13.50
12.50
11.50
IMAY
IAPR
183 H AT LOBIVIA
56.4 OATS STARTING
LEG 5: HOURLIES,
300 GMT 16- MAR 1977
—
241
STATION
LEG
DEPTH
I!
5
283
TAPE NO
228/44
INT€RiIAL
HOURLY
FILTERING
LOW PASS
FIRST 5 LINES OF DATA?
a.?
2.5
2.1
0.3
—2.6
3.7
8.2
7.5
5.3
9.8
0.7
LAST 5 LINES OF DATA?
—2.8
700 ii
5 77
0.0
5 77
1.7 —1.6
800 11
5 77 —3.7
11
1000 11 5 77 —4.4
5 77 —3.6 —5.2
1100 11
—864.3
—862.6
—8b6.3
—870.7
—874.2
186.1
184.5
179.4
174.4
169.2
300 16
L+00 16
500 16
600 16
700 16
77
77
77
77
3.7
4.4
—0.7
3 77
14.6
3
3
3
3
—2.2
11.44
11.29
11.09
11.12
11.36
3.2
5.3
5.7
.0
11.97
11.98
12.26
12.33
12.2'.
1.
2
3
4
5
1349
1350
1351
1352
1353
STATISTICS FOR E—W(tJ) AND N—S(V) COMPONENTS
AVG(tJ)
N
1351
—.6
VECTOR
AVG(%I) VAR(U) VAR(V) STJ(L) STO(V) COV(UV) CRLTN
—28.6 —.6 872
5.7
.1.
53.1
32.6
SPO =
.7 CM/S, DIR = —78 OEGREES(T)
8.0
DIRECTIONAL STEADINESS?
PRINCIPAL AXIS IS 125.2
STATISTICS FOR COORDINATES ROTATED
*5 DEGREES
= 135 DEGREESCIJI
ALONGSHORE
LOBIVIA
LEG 5
283
N
MEAN
STO
SKEW
KURT
MAX
PUN
S
(CM/SI
1353
4.3
.8
3.5
25.5
.2
U
(CM/S)
1353
3.8
—.0
2.9
12.2
—14.1
V
(CM/S)
1353
.5
8.5
.1
2.1.
24.3
—22.8
TLOEG C)
1353
11.1+
.4
—.1
2.5
12.5
10.1
242
15 lIAR 27 — II MAY 77.
METERS Al LOBIVIA.
0.05
TAPE 2254/4.
JMEAM
o
0.06
0.05
0.04
0.03
-J
0.02
0.00
0.00
3.6
0
5.9
8.1
10.4
14.5
12.6
12.1
09.3
21.6
23.
280
300
26.0
28.3
SPEED, Oil/SEC
o .cs
0.06
0.05
0.04
0.03
0.02
0.01
0.00
20
0
40
60
80
100
120
-
160 180 200 220 240
DIMECTION, lOCAlES TRUE
140
263
320
340
360
1000
103
to
z
E
10
'3
'a
0.1
—3
—2.5
—2
—1.5
—t
—0.5
0
•
0.5
PER
1
A1
1.5
2
2.5
3
20.00
LL.
—.
&
—V."-.
-
L.iiuliLL
.
..
-
.
D —20.00
30.00
10.00
-
—10.00
I--'-- r
'yr'
'rpTy
(A)
—30.00 13.00
12.50
0
0
11.50
10.50
I MAY
283 M AT LOBIVIA
58.4
DAYS STARTINO
LEC 5* HOURL.IES
300 CMT 16 MAR 1977
245
JOINT—Il 1977 Installation
EUPHORBIA V
Position*:
15°31.2'S, 75°00.8'W
Distance Offshore:
7.0 km
Bottom Depth:
Set:
123 m
Retrieved:
1339 GMT 20 March 1977 by R/V MELVILLE
2226 GMT 11 May 1977 by R/V ISELIN
2000 GMT 20 March to 1500 GMT 11 May
Longest Record Length:
51 days, 20 hours
Longest Data Interval:
Instrumentation
Intended
Accepted
Serial
Depth
Depth
Tape #
0m
20 m
60 m
0m
26 m
63 m
Dl26/9
503/35
751/21
Sampling
Interval
20 mm
15 mm
15 mm
Measured
Variables
S,8,Ta,T
S,o,T,P
S,O,T,P
Comments:
Current meter 1964 was placed at an accepted depth of 103 m (intended
depth = 100 m) but the magnetic tape did not run.
* Navigation: radar fixes and Peru chart DHNM 2200. The position of the
EUPHORBIA meteorological buoy was estimated to be l5°31.5'S 75°00.8'W.
246
7500
6250
5000
2500
1250
-2500
—1250
WIND AT EUPHORBIA.
20 lIAR 72 -
11
hAT 7?.
TAPE 012619.
247
STATION
LEG
DEPTH
5
9
FIRST 5 LINES OF DATA:
0 21
3 77 —1.2
1.1
—0.9
lOU 21 3 77
1.9
200 21 3 77 —1.6
2.3
300 21
3 77
—1.9
1.5
400 21.
3 77 —1.7
1.6
LAST 5 LINES OF DATA:
1100 11
5 77
1.4
1.8
1200 11 5 77
1.9
1.2
1300 11
0.6
5 77
0.3
5 77
0.9 —t.7
11
1500 11
5 77
0.7
.0
INTERVAL
HOURLY
TARE MO
0126/9
FILTERING
LOW PASS
16.96
17.17
16.77
16.81
17.08
1
8.'..
27.29
27.30
27.29
26.81
26.97
2354.1
2355.3
2355.6
2354.9
2357.0
25.59
26.01
26.61
26.81
27.03
17.28
17.67
17.83
17.94
18.03
1236
1237
1238
1239
1240
—1.2
—2.1
—3.7
-5,7
—7.3
1.1
3.0
6.3
6.7
—1339.4
—1337.5
—1336.9
—1336.0
2
3
1
5
STATISTICS FOR E—W(U) ANO N-S(V) COMPCNENTS
AVG(ti)
N
.1.1
AVG(J) \FAR(U) VAR(V) 510(U) STD(V) COV(UV)
1.5
2.1
1.8
1.4
CRLTN
.1859
VECTOF MEANT SPC =
2.2 MIS, DIR = —29 OEGREES(1)
DIRECTIONAL STEADINESS: 79.5
7.
PRThCIPAL AXIS IS 123.7 OEGREES(T)
STATISTICS FOR
60 DEGREES
ROTATED
(EQUT'IALENT ALONGSHORE DISECTION = 120 CEGREEStI))
EUPHORBIA LEG 5
0
VARIABLE
S
(M/S)
MEAN
570
SKEW
KURT
MAX
uN
2.7
1.1
.3
2.8
6.2
.1
1.1
1.3
3.0
1.•3
—2.7
1240
1.9
1.5
—.2
2.8
6.0
—3.2
I2L4O
17.1
.8
.6
3.1
19.7
15.4
1240
26.5
1.2
.5
2.9
30.6
2..2
N
1240
U (M/S)
(M/S)
TW (CEG)
M
248
20 lIAR 77 - 11 NAT 77.
AT EIWHORBIA.
0.20
0.15
0.16
0.11
0.12
0.10
0.0e
I
0.06
0.04
0.02
0.00
3
3
4
7
6
5
SPEED, fl/SEC
0.12
0.10
0.00
'a
IC
-J
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
ISO
200
220
240 260
250 300
320 340
360
DIRECTION. DECREES TRUE
10
1-
0.1
0.01
-3
-2.5
-2
-1.5
—I
-0.5
0
0.5
FREQUENCY • CYCLES PER CRY
1
1.5
2
2.3
3
249
6.00
4.00
U)
0.00
—4.00
6.00
4.00
U)
0.00
—4.00
20-Do
19.50
18.50
C.)
17.50
16.50
15.50
14.50
31.00
30.50
w
0
27.50
C
26.50
25.50
24.50
23.50
I MAY
O 14 AT EUPI4ORBIA
51.7 DAYS STARTING
LEG 5
000 OMT 21 MAR 1977
250
75
50
—50
ti AT EUPHORBIA.
-25
20 MAR 77 — 11 MAY 77.
TAPE 50V35.
50
—100
—50
63 II AT EUPHORBIA.
200
20 MAR 2? — 11 MAY 7?.
TAPE 751/21.
250
251
STATION
EUFHORSIA
2o
5
INTERVAL
HOURLY
TAPE 40
503/35
OEPTH
LEG
FIRST 5 LINE3 OF DATAS
0.3
3 77 —18.3
2C30 2C
—3.0
3 77 —15.7
2100 20
0.1
3 77 —iL..5
2230 23
5.5
—14.1
3 77
23u3 20
2.2
u 21 3 77 —13.1
—18.0
—33.7
—48.2
—62.4
—75.5
3.3
—2.7
LAST 5 LINES OF OATAZ
1130 11 5 77 10.4 —9.1.
11.7 —10.0
1230 11 5 77
5 77 11.3 —9.7
13Cc 11.
5 77 11.1 —9.5
14CC ii
14.9 —9.1
5 77
1530 ii.
599.5
611.1
622.4
633.6
648.5
523.4
513.4
503.6
495.2
5.2
486.0
16.40
16.41
16.27
16.18
258811
259970
260769
260469
261379
1
2
3
1+
5
1240
257086
257108
257087
257081
121+1
1242
1243
121+1+
M—S(V) COMPONENTS
STATISTICS FOR E—W(U)
VAR(V) 510(U) STO(V) COV(LJV) CRLTN
—90.9 —.6409
9.3
14.5
96.3
AVG(U) AVG(V)
N
121.4
3.0
16.22
16.04
15.95
15.85
PASS
•5
hR = 53 OEGREEStT)
=
.7
VECTOR IEANI
DIRECTIONAL STEADINESS' 4.0 Z
PRINCIPAL AXIS IS 119.0 DEGREES(T)
FOR COORDINATES ROTATED 6) DEGREES
= 120 DEGREESETI)
ALONGSHORE
EUPHORBIA LEG S
26 1
N
S
tCM/S)
MEAN
STO
15.4
6.0
U (Cs/S)
1244
.6
6.8
(CM/S)
1244
—.3
16.1
T(tJEG C)
1244
1.5.7
..3
P
(O3AR)
.2
SKEW
.0
—.0
KURT
MAX
MIN
5.8
43.5
.1
2.7
20.2
—20.3
1.9
43.4
—36.1
2.6
16.6
14.8
26.8
25.3
252
26 METERS AT EUPHORBIA.
0.18
20 MAR 77 —
01
MAY 77.
TAPE 503/35
J. MEAN
0.16
0.14
0.12
ci
z
C
w
'S.
'Si
0.13
0.08
0
0.04
0.02
0.30
9.9
5.5
14.2
22.7
18.5
26.9
01.1
35.2
39.2
43.3
47.2
SPEEO, CM/SEC
o .o,
o .oe
o .0,
0.05
0.04
0.03
0.02
0.01
0.00
0
20
40
60
80
100
120
140
160
180
200 223
240 260
280
300
320
240
360
DIRECTION, OEOs3EES TRUE
100
'S.
z
U
a-
—3
—2.5
—2
—1.5
—1
-0.3
0
0.5
FREOVENC't, CYOLES PER DAY
1
1.3
2
2.3
0
253
50.00
40.00
20.00
0.00
> .-z0.00
—40.00
17.00
C,
16.00
C,
w
0
I-
15.00
14.00
27.00
26.00
A
I
&
.
.
.&fluaif i_
.
......iI.AJJULI
0
a.
1MAY
LEG 5:
AT EUPMORS2A
26
51.8 DATS STARTXNG 2000 GMT 20 MAR
254
STATION
EU°HORBIA
JEPTH
LEG
63
5
FIRST 5 LINES OF DATA:
3 77 —19.9
U.S
2&iOC 20
2C
3
22CC
23CJ
0 21
3 77
3 77
3 77
77 —12.1+
—C.7
9.1
—5u.5
i',.2'.
63038k
630460
633751
632537
637868
6202.?
6227.8
6254.7
6281.7
6310.1
14.81
14,76
14.82
14.33
14.75
639901
639901
639900
639904
639901
—19.9
—32.3
—32.9
8.1
16.1
12.6
12.5
5 LINES OF DATA:
5 ii
22.1 —13.7
5 77
12U0 11
25.0 —9.9
5 77 26.9 —11.7
1300 11
11
—11.5
5 77
FILTERING
LOW PASS
INTERVAL
HOURLY
TAPE
751/21
0.5
8.6
15.76
15.1+6
15.20
15.25
1
121+0
2
3
4
5
LAST
110i3 11
11
5 77
28.1+
—2916.4
—2928.2
2939.6
—2949.1
1241
121+2
121+3
1241+
STATISTICS FOR E—W(U) AN) N—S(V) COMPONENTS
AVr,(U) A'IGU) VAR(U) VARtV) STO(tJ) STD(V) COV(UV) CRLTN
77.1+
—.6821
8.0
'..1
—2.. 2C3.0
N
i2LiL+
VECTOR
=
MEAN: SPO =
5.6 CM/S,
DIRECTIONAL STEADINESS! 33.9 X
DEGREES(T)
AXIS IS IIL+.0 OEGREES(T)
STATISTICS FOR COORDINATES ROTATED 60 DEGREES
ALONGSHORE DIRECTION = 120 OEGREES(TI)
FUPHORBIA LEG S
63 M
VARIABLE
MIN
MEAN
STO
SKEW
KURT
lo.5
5.3
.9
5.3
.5
5.6
—.n
2.8
15.9
—14.9
V
—5.6
15.3
.6
2.1
36.7
—31.3
T(OEG C)
is. o
.2
63.7
.3
S
N
1241+
U (CM/!)
P
12L.L+
-.5
MAX
.3
Z3.3
1'+.3
3.3
62.8
255
25 tWA 77 - 11 tWY 77.
63 ti M
TAPE
o. 18
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.20
4.8
8.1
11.5
18.2
14.8
28.3
21.6
31.6
30.1
55
0.12
0.10
0.08
a
z
0.06
0,04
0.02
0.00
23
0
40
60
80
100
120
142
160
180
200
220
240
260
280
322
520
540
560
TRI1P
1000
100
z
10
C.
0.1
—3
—2.5
—2
—1.5
—t
—0.5
5
FqECJEJ6CY • CYCLES
0.3
CAY
1
1.5
2
2.5
3
20.00
0.ooi
—20.00
40.00
20.00
0.00
-20.00
—40.00
16.00
15.50
C.)
C,
w
0
Ui
14.50
I-
13.50
65.00
a.
61.00
I APR
63 N AT EUPHORRIA
LEC 5: HOURLIES,
OATS STARTING 2000 GMT 20 MAR 1977
I MAY
257
JOINT—lI 1977 Installation
PARODIA V
Posi tion*:
Distance Offshore:
14°55.7'S, 75°39.8'W
Bottom Depth:
Set:
124 m
1438 GMT 17 March 1977 by R/V MELVILLE
1617 GMT 11 May 1977 by R/V ISELIN
2200 GMT 17 March to 0900 GMT 11 May
Retrieved:
Longest Data Interval:
Longest Record Length:
10.5 km
54 days, 12 hours
Instrumentation
Accepted
Serial
Depth
Depth
0m
20 m
60 m
100 m
0m
24 m
64 m
104 m
Intended
Sampling
Measured
Tape #
Interval
Variables
D72/2l
438/24
452/37
485/35
20 mm
15 mm
15 mm
15 mm
S,O,Ta,T
S,O,T
S,O,T,P
S,O,T
Comen ts:
The rotor on RCM 438 (24 m) became heavily fouled. Data for speed and
velocity components exist only through 1900 GMT 17 April 1977. Refer
to Appendix 2 for information about the Parodia water temperature
calibrations.
* Navigation: radar fixes and Peru chart DHNM 2200. The position of the
PARODIA V meteorological buoy was estimated to be within ½ n.m. of the
subsurface array.
258
11200
p600
8000
6400
-6400
-4800
-1600
1600
—1600
WINO AT PARODIA.
55.0 OAY3 STARTING
17 NAR 2?.
259
TA°E NO
072/21
DEPTH
LEG
0
5
FIRST 5 LINFS OF DATA?
1.1+
2200 17 3 77
0.2
2300 17 3 7,
7.2
—1.7
3 77
0 18
7.7
—1.8
3 7
100 18
6.1+
—2.7
200 18 3
5 LINES OF DATA?
1.1+
—0.3
5 77
2.3
500 11 5 77 —1.4
2.7
600 11 5 77 —2.1
2.1
5 77 —2.0
700 11
5
800 11.
77
—1.9
1.8
19.98
19.86
19.78
19.63
LOW PASS
18.21
1.1+
5.1+
1.5
—0.2
—1.9
—14.7
10.7
17.9
25.7
32.1
—1793.1
3Q1414,L+
17.16
16.11+
—17914.6
301+6.7
17.11k
—1796.7
—1798.8
—1800.7
3051.5
3053.3
17.24
17.20
17.05
16.32
16.25
16.33
16.35
LAST
1.00 11
HOURLY
1
2
3
17.89
17.75
14
5
19.1+8
1303
1304
1305
1306
1307
STATISTICS FOR E—W(U) AND N—S(V) COMPONENTS
AVG(U) AVG(V)
—1.'
N
1307
VAR('I) STD(U) STD(V) COV(UV)
3.3
3.8
1.8
2.0
-1.9
CRLTN
—.5251
—30 OEGREES(1)
DIR
2.7 MIS,
DIRECTIONAL STEADINESS2 35.3 X
VECTOR MEANS SF')
PRINCIPAL AXIS IS 139.1 OEGREES(T)
DEGREES
STATISTICS FOR COORDINATES ROTATED
135
DEGREESITI)
(EQUIVAL!NT ALONGSHORE DIRECTION
PAROOIA
N
MEAN
OM
Sb
LEG 5
St(EW
KURT
MAX
MIN
10.1.
.1
('4/5)
1307
3.2
2.1
.8
2.8
U (M/S)
1307
.7
1.3
.2
'3.0
(M/S)
1307
2.6
2.3
.6
2.7
9.8
-2.6
.W (DEG)
130'
17.0
2.8
20.2
15.1+
(DEG)
1307
18.9
2.9
22.9
16.3
S
V
1.2
—4.7
260
AT PAPOOIA.
0.30
- 11 lilT 77.
17
TAPE
072/21
IMEf8I
0.25
0.20
0
2
3
5
4
7
6
9
S
10
12
11
13
REED. A/SEC
0.12
0.10
0 .0
0.04
0.02
0
0
40
20
60
80
100
120
140 160
180 200 220 240
OIRECTIGR, DEGREES TRUE
260
280
300
320
340
360
10
z
0.1
0.01
-3
—2.5
-
-2
-1.5
—1
-0.5
FRCOUENCT •
0
0.5
CTCLES PER 04T
I
1.5
2
2.5
3
261
6.00
LI)
x
2.00
r
-2.00
I
'r
—6.00
39.00
8.00
in
4.00
0.00
—4.00
20.50
18.50
18.50
0
17.50
P.
16.50
15.50
14.50
23.00
22.50
21.50
20.50
CD
w
19.50
C
P.
18.50
17.50
16.50
15.50
I APR
HOURLIES1
I..EG 5
54.5 DA'rs STARTINC 2200 GP4T 17 MAR 1977
0
P4 AT PARODIA
I MAY
75
-25
24 11
PMODIR.
.6 0013
250
104 II PT PUCOIP.
55.0 DAYS
1?
125
N)
fl
1454
—70
64 II AT PARODIA.
100
55.0
w
263
STATION
OEPTH
LEG
TAPE
L+38/24
24
FIRST 5 LINES OF OATAS
2166 17
3 77 18.8 —21.8
2200 17 3 77 20.3 -23.3
2360 17
0 18
100 18
3 77
3 77
3 77
20.7 —22.5
21.1 —19.5
19.6 —17.3
LAST 5 LINES OF DATA
400 11
5 77
0.0
500 11 5 77
0.0
11 5 77
700 11 5 77
3.u
860 11 5 77
0.0
18.8
39.0
59.7
80.8
INTERVAL
FILTERING
LOW PASS
—67.6
—87.2
16.07
15.79
15.90
15.91
—1J4.5
15.96
5
—21.8
1
2
3
4
0.0
0.0
0.0
15.91
1301.
0.0
15.81
3.U
0.0
u.u
15.77
0.0
0.u
0.0
0.0
3.6
3.0
15.84
15.77
1305
13Db
1307
1308
0.0
0.0
STATISTICS FOR E—W(U) AND N—S(1) COMPONENTS
AVG(U) AVG(V)
N
743
—2.L.
VAR(V) STOtU) STO(VI COV(UV)
141.7
99.6
11.9
10.0
—14.6
CRLTN
—.1180
VECTOR MEAN: SPO =
.8
DIR = 123 QEGREES(T)
DIRECTIONAL STEADINESS: 30.9 Z
PRINCIPAL
AXIS IS 106.9
DEGREES(T)
STATISTICS FOR COORDINATES ROTATED 1+3 OEGREES
ALONGSHORt DIRECTION = 135 DEGREESET))
PARODIA
LEG 5
24 M
RIABLF
S
*
1-.7
(Ce/S)
U (CM/S)
3
(CM/S)
74+3
T(DEG C)*
STO
MEAN
N
1.3
10.3
KURT
MAX
tlIN
.2
3.6
30.9
2.9
.6
2.3
24.7
—26.3
2.0
22.3
—30.8
3.2
17.0
15.2
11.6
1 5. 9
No recent calibration available.
in Appendix 2.
SKEW
.3
.6
See discussion of temperature calibrations
264
24 N AT
17 NAR 77 - It APR
77.
TAPE 435124
0.10
0.09
o .os
0.07
0.04
0.05
U.
0.04
0.03
0.02
0.01
0.00
3.5
9.0
6.4
11.6
14.2
14.5
24.4
19.3
24.9
29.4
31.9
34.3
SPEED, CN/3EC
0.06
0.05
0.04
0.03
U.
0.02
0.01
0.00
0
20
40
40
50
100
120
140
140
180
200
220
240
240
200
300
320
340
360
DIRECTION, DECREES TRUE
1000
100
'Ii
0
10
0.1
—3
—2.5
-2
—1.5
—1
-0.5
0
0.5
FREQUENCY. CYCLES PER OAT
1
1.5
2
2.5
3
30.00
10.00
—10.00
—
—30.00
30.00
20.00
U,
0.00
0
—20.00
—40.00
17.50
16.50
'I
15.50
14.50
-I—I-! ........... I ii ii
i
I—1—4—
iiiit'iilsiIItIiI
IAPR
AT PARODIA
5:
24
54.5 OAYS STARTING 2100 GP4T 17 MAR 1977
IMAY
266
STATION
PARODIA
1+52/37
FIRST 5 LINES OF DATAI
33.9 —11.2
2200 17 3 77
3 77 31.8 —9.3
2300 17
30.6 —9.1+
3 77
18
3 77 28.9 -12.1
1(0
27.2 —7.5
2J0 18 3 77
33.9
65.7
96.3
125.2
LAST 5 LINES OF OATA$
500 ii 5 77 14.3 —12.'+
5 77 12.7 —t1+.9
6C0 11
16.7 —13.6
5 77
Ii.
800 Ii 5 77 17.2 —11+.3
9151.0
9163.7
9180.4
9197.6
Ii
FILTERING
LOW PASS
INTERVAL
HOURLY
TAPE NO
DEPTH
LEG
—11.2
—20.5
—29.9
—1+2.0
152.1+
6501+44
651091+
15.33
15.35
15.35
15.33
15.37
—6777.7
—6789.5
2
3
65095k
651050
—6734.9
—6763.1+
1.
1+
61+9719
5
61+61+12
1304
1305
1306
1307
1308
647355
648034
15.05
15.16
15.04
15.16
61+7988
51+7989
STATISTICS FOR E—W(U) AND N—S(V) COMPONENTS
AVG(U) AVG(V) VAR(U)
N
-5.2
100.0
75.1k
CRLTN
STO(U) STD(V) COV(UV)
—34.5 —.3953
8.7
DIR =
8.7 C1/S,
DIRECTIONAL STEAOIPIESS1 57.1
OEGREES(T)
VECTOR MEANt SPJ
7.
OEGRE€S(T)
PRINCIPAL AXIS IS 125.6
DEGREES
STATISTICS FOR COORUINATES ROTATED
OEGREES(131
135
(EQUIVALENT ALONGSHORE DIRECTION =
LEG 5
PARODIA
VARIABLE
N
MEAN
STO
MAX
MIN
.3
1+.6
35.7
.6
7.3
.1
2.5
20.3
—17.6
—8.7
11.1
.8
2.5
T(OE( C)* 13L8
15.2
.2
.1+
2.6
15.8
P
6!.,. 7
.2
.6
3.5
65.3
S
1305
U (C1/S)
13C8
1.3
V
1308
—31.9
i..6
Temperature data were processed using
See discussion in Appendix 2.
1973.
the pre-calibration of 14 September
* No post-calibration available.
267
64
AT PARODIR.
17 nOR 7? - 11 ORY 7?.
452/37
0.14
0.52
0.10
I :::
0.04
0.02
0.00
4.7
0
21.9
18.5
15.1
11.6
8.2
31.9
28.6
25.2
38.4
35.2
SPEED, CS/SEC
0.12
0.10
O
.18
0.06
oi
0.04
0.02
0.00
0
40
20
60
80
100
120
140
160
180
200 220
240 260
280
300
320
340
360
DIRECTION. DECREES TRUE
1000
100
t0
—3
—2.5
—2
-1.5
—I
0
—0.5
FREOUENCT
•
0.3
CYCLES PER OAT
1
1.5
2
2.5
3
________________________
30.Q0 -
20.00 -
O.00•
... Wi
-20.00 -
1%.)
03
16.00
0
0
15.00
I14.00
66.00
i.LA.ALA — —-
65.00-
a
I
63.00
I APR
LEG 5: HOURLIES,
54.5 DAYS STARTING 2200 CMI 17 MAR 1977
64 M AT PAROOXA
I MAY
269
STATION
PARODIA
OEPIH
LEG
FIRST 5 tINES OF DATA!
2200 17 3 77 18.8
3 77 18.3 —21.7
17
3 1R 3 77 15.3 —21.9
12.6 —21.1.
3 77
100 18
2u0 18 3 77 10.4 —20.5
LAST 5
5u3 11
11
7u0 11
SOu 11
11
TAPE
INTERVAL
NO
'435/35
5
18.8
37.1
52.1+
65.0
75.'.
HOUFLY
—23.2
15.23
—kk.9
—66.7
15.24
FILTERING
LOW PASS
1
2
15.25
15.25
3
15.27
5
—3488.0
11e.51
130'.
—31.97.5
—3511.1+
14.50
14.53
14.51
14.52
1305
1306
1307
1308
—88.1
—108.6
LINES OF DATA!
5
5
5
5
5
77
77
77
77
77
12.3 —9.1
10.9 —9.5
12.3 —13.9
13.6 —IC.5
10.5 —12.6
3170.7
3181.6
3193.9
3207.6
3218.0
—3521.9
—3531..5
STATISTICS FOR E—W(U) AND N—S(V) COMPONENTS
AVG(U) 44G(V)
N
2.5
1388
—2.7
55.8
VAR(V) STJ(U) STO(V) COV(UV) CRLTN
—32.1 —.5673
7.6
7.5
7.2
3.7 Ci/S, DIR = 138 OEGREES(T)
VECTOR MEAN: SPO =
DIRECTIONAL STEADINESS! 34.9 7.
PRINCIPAL AXIS IS 135.6 OEGREES(T)
STATISTICS FOR COORDINATES ROTATED '.5 DEGREES
(EQUIVALENT ALONGSHOR.E OIRECTION = 135 OEGREES(T1)
LEG 5
101+ M
VARIABLE
S
N
MEAN
STO
(CM/Si
SKEW
KURT
MAX
MIN
1.1.
'+.5
29.9
1.2
U (CM/S)
1308
—. 2
'4.9
.2
3.0
18.4
—13.1
(CM/S)
1309
—3.7
9.1+
.3
2.1+
21.0
—29.7
2.8
15.5
14.2
V
T(OEG C)*
j3Q9
.3
* No post-calibration available. Temperature data were processed using
the pre-calibration of 4 February 1976. See discussion in Appendix 2.
270
104 A AT Pc1ROOIA.
?7 - 11 18W fl
1?
TIV( 485/35
0.16
0.14
0.12
0.10
0.08
I.-
hi
0.06
0.04
0.02
0.00
3.8
0
9.0
6.4
11.6
14.2
16.8
TEED, CM/SEC
19.3
21.9
24.4
26.9
29.4
31.9
0.12
0.10
0.08
0.06
0.04
0.02
0.00
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
340
360
DIRECTION, OECREES TRUE
1000
100
10
0.1
—3
—2.5
—2
—1.5
—i
—0.5
FREQUENCT •
0
0.5
CTCIIS PER OAT
1
1.5
2
2.5
3
-20.00
30.00
III
p:::
i3.50
I I
I
I I I I I I I I I I I
I
I
I I I I I I I I I I I I I I I I I I I I I I I I I I I
IAPR
LEG 5: HOURLIES,
54.5 DAYS STARTING 2200 GIlT 17 lIAR 1977
104 M AT PAROOIA
I I I I I I
IMAY
I I
I
II
273
JOINT—Il 1977 Installation
YUCCA TOO V
Position*:
12°04.6'W, 77°19.5'W
Distance Offshore:
8.2 km (from San Lorenzo Island)
Bottom Depth:
Set:
117 m
Retrieved:
1141 GMT 9 March 1977 by R/V MELVILLE
1152 GMT 18 May 1977 by R/V ISELIN
1900 GMT 9 March to 0500 GMT 18 May
Longest Record Length:
69 days, 11 hours
Longest Data Interval:
Instrumentation
Intended
Accepted
Serial
Depth
Depth
Tape #
40 m
60 m
100 m
37 m
57 m
97 m
921/7
493/29
1239/8
Sampling
Interval
20 mm
15 mm
15 mm
Measured
Variables
S,e,T,P
S,o,T
S,e,T
Commen ts:
All sensor channels from RCM 493 (57 m) were unintelligible for the
latter part of the installation. Data exists through 1100 GMT 7 April.
* Navigation: radar fixes and U.S. chart H.0. 22173 (Callao and approaches).
30
—20
50
30
60
Co
-50
50
*00
—3
-60
-P0
-*20
—150
—leo
5
—630
37 fl AT YUCCA 100.
fl AT YUCCA TOO.
2P.2 DAYS
1204 P lIAR 7
—350
70.0 DAYS 5TAATftiG *202 P lIAR 77
P7 H AT YUCCA 100.
70.0 DAYS STARTING *202 9 MAR 77
275
DEPTH
LEG
YUCCA
INTER4AL
HOURLY
TAPE r40
921/7
37
5
FIRST 5 LINES OF DATAt
1930 9
d.9
3 77
1.7
3 77
2000 9
6.7
6.5
9
3 77
5.1
9.1.
9
3 77
9.9
—d.b
2300
3 77 10.9
9
-0.2
1.7
3.2
17.3
10.7
16.6
16.iQ
16.05
15.95
16.12
16.04
2923.3 —16o38.7
2923.9 —16625.8
17.9k
17.58
17.25
16.29
16.34
8.9
15.6
2u.7
30.6
41.5
LAST 5 LINES OF DATA:
lOu 18 5 77
3.3
5 77
200 18
1'.9
0.6
300
5 77
3.3
10.9
3.13
'÷00 18
5 77
0.9
5 77
0.5
8.1
2927.2 —1661'4.9
2928.1 -16606.9
2928.6 —16598.8
FILTERING
LOW PASS
37001g.
I
369599
367493
36886k
368556
2
3
4
375303
373526
1663
1664
1665
1666
1667
3?131'+
370069
369547
5
STATISTICS FOR E—W(U) AN) N-Sly) COMPONENTS
AVG(U)
1.8
—10.0
N
1667
77.7
VAR(V) STO(U) STO(V1 COV(UV)
CRLTN
118.1
8.3
10.9
—.0550
VECTOR MEAN: SPO
DIR = 170 OEGREES(T)
10.1
DIRECTIONAL STEADINESS) 62.9
7.
AXIS IS 172.7 DEGREES(T)
STATISTICS FOR COORDINATES ROTATED 30 OEGREES
(EQUIVALENT ALONGSHOkE
= 150 DEGREESETI)
YUCCA TOO LEG S
37
N
MEAN
310
SKEW
KURT
MAX
.6
3.1
17.9
2.3
22.9
—25.1
MIN
S (CM/S)
1667
16.1
6.3
(CM/S)
1667
—3.5
9.1
V
1667
—9.5
10.6
.6
3.1.
23.7
—35.4
TIDEG C)
1o67
16.1
.2
.8
6.2
17.9
15.5
P
16ó7
37.2
.3
.5
3.0
33.3
36.6
U
2
C,
-4
'a
GA
'a
'a
I-A
IA
0
0
(ii
0
0-
Gd
0
0
'a
Gd
0
0
Gd
0
'a
S
P-1
S
'a
a
0
S
g
0
0
'a
0
0
0
0-
0a
0
I'I
0
'I
(A
(A
'a
'a
0
SPECTRa. DENSITY
o
0
0
0
0
0
0
RELATIVE FREQUENCY
0
b
0
-o
0
0
'0
'a
S
'O
Gd
0-
'4
U
'0
I-I
'a
a
'a
a
a
'a
0-
0
Gd
'0
'-4
0
0
0
0
0
0
RELATIVE FREDUENdT
0
0
0
A-
0
'0
=
—4
3000
—30 00
—40 00
10.00
17.00
-4
C,
—4
16.00
1
15.00
39.00
3700
,.u
35.00
+
A
I
A A—
-
I
IAPR
37 N AT YUCCA TOO
LEG
69 5 DAYS STARTING 1900 ONT
HOURLIES,
9 MAR 1977
278
STATION
LEG
YUCCA TOO
DEPTH
5
57
FIRST 5 LINES OF 0414$
1900 9
3 77 10.0 —5.2
2000
9
3 77 10.7 —5.5
?1•00
2200
2300
LAST
700
800
1100
9
9
9
3 77
3 77
3 77
8.5
7.2
—6.2
—9.3
—7.U
TAPE NO
INTERVAL
'+93/29
FILTERING
HOURLY
LOW PASS
10.0
15.66
15.62
29.1
—5.2
—10.7
—16.9
36.1+
1+5,9
—33.2
15.6
5
—1+560.0
16.15
16.15
16.15
16.1k
16.14
685
686
b87
688
689
20.7
1.
2
3
15.5k
15.57
5 LINES OF DATAI
7
7
7
7
7
77
77
77
5•9
4 77
4 77
3.6
3.1
1+
1+
7.0
8.1
3.6
0.2
—4.3
—6.6
—8.2
2035.7
2043.7
—4559.8
—'+561+.1
2053.3
—1+570.7
2C56.'+
—4578.9
STATISTICS FOR E—W(U) AN) N—S(V)
AVGIU) AVG(V) VAR(U) VARfl/) STO(U
—6.6
3+.2
181,9
5.8
N
COMPONENTS
STO(V) COV(UV)
1.5
—9.2
CRLTN
=
7.3 CMIS, DIR = 156 DEGREES(T)
DIRECTIONAL STEADINESS: '+7.1+ Z
VECTOR MEAN: SPC
PRINCIPAL
AXIS IS 176.1+ 0EGREES(T)
S1ATISTICS FOR COORDINATES ROTATED 33 DEGREES
(EQUIVALENT A1ONGSHORE DIRECTION = 150
YUCCA TOO LEG 5
57 M
VARIABLE
N
MEAN
STO
SKEW
KURT
MAX
PuN
5.8
1.3
4.3
37.0
3.2
.3
2.0
16.3
—15.5
2.4
22.6
—36.0
2.8
16.6
15.5
S
689
U (CM/S)
689
—.7
7.9
V ICM/S)
689
•—7.2
12.'.
T(DEG C)
68q
16.1
.1
—.3
C-4
Cl
(3
I-,
'A
(4
U.,
(a
0
-
8
—
8
0
I,
b
0
0
0
0.
P3
0
a
0
0
flI
m
U.,
CA
Ia
'0
'a
—
a
U-,
.3
a
'0
a
—
0.
—
SO
a
Si
a
a
0
Si
a
9.
b
(3
a
0
0
a
(-I
C?
0
3.
0
'4
0
U.,
C-a
o
C)
'a
0
C'
•3
a
0
I.,
U-'
An0
(I
0
'a
0
0
C,
a
0
a
0
0
9
REInT1VE FREOUrNCY
0
00
0
0
a
-
0.
c'
p
IIaATIVE FREOUENCY
b
0
0
0
0
C—
13
0
'0
U-,
'a
'0
a
'0
8
—I
a
0
.4
a
C
a
.-.
UI
20.O0•
0.00•
-20.00
30.00
20.00
0.00
N.)
U
—20.00
—40.00
17.00 T
a
16.00 4.
a
15.00 Iii, 1,1111111111 I
•
I APR
LEG 5: HOURLIES,
57 N AT YUCCA TOO
20.7 DAYS STARTING 1900 GMT 9 MAR 1977
281
STATION
YUCCA TOO
5
9
19CC
200u
9
9
2200
9
9
LINES
LEG
DEPTH
3 7i —lu.6
1.7
2.3
3 77 —10.1
3 7
—10.0
3 77
-5.7
3.2
5jQ 18
5 7,
3.7
77
4.2
5 77
5
FILTERING
LOW PASS
I MT ER V AL
HOURLY
OF
3 77 —10.A+
—1U.4
—21.0
—31.2
—41.2
—46.9
3. 5
•1
P
LAST 5 LINES OF DATA:
130 18 5 77 —11.3 —1Q.2
200 18 5 77 —3.7
0.3
18
13
TAPE NO
123/93
97
5
10.8
13.3
14.3
1.7
15 •
3.0
11.2
11.8
1683.9
1680.2
—9G17.6
—9017.3
1683.9
1687.4
1691.6
—8991.2
—8973.9
22
I
2
3
15.22
15.22
15.22
15.22
4
5
1663
1664
1665
1666
15. 53
15.19
15.13
15.12
15.13
1667
STATISTICS FOR E—W(1J) AND N—S(V) COMPONENTS
AVG(U)
N
1667
VARLU
29.7
1.[
VAR(V) 510(U)
9.7
9+.0
VECTOR MEAN: SPO =
5.5
DIR
DIRECTIONAL STEADINESS:
COV(UV)
—20.7
CRLTN
3917
—.
169 OEGREES(T)
7.
PRINCIPAL AXIS IS 163.6 DEGREES(T)
STATISTICS FOR COORDINATES ROTATED
(EDUIVALENT
DIRECTION =
DEGREES
IEGREEStTI1
YUCCA TOO LEG 5
97
V4PIABLE
S
(CM/S)
U
MEAN
srn
SKEW
KURT
MAX
tlIN
1667
11.1
5.5
1.?
4.2
14.6
.1
1667
—1.8
5.3
.3
2.7
15.4
.3
3.0
25.7
—33.5
—.2
2.8
16.1
14.4
N
(CM/S)
1667
T(OEG C)
1667
V
.1
-4
F
2
4(4
'4
0
0
(.0
4,q
'4
'0
'4
CA
Al
'4
44,
'U
0
(A
'S
'4
(4,
04
(-4
'0
'4
.5_ti
2
-
2
'4
4
Al
•
$-.*-4 ++4l4,
o
o
RELA1IVE rRD0UENCY
(A
(A
0
C
'4,
(A
(A
.4
14
0
$PECTKflL DENSITY
o
0
0
-
0
C,
Al
RELATIVE FREOUENCY
—
0
1)
0
z
S
m
'0—
*
—
44
a
'C
.4
0
-o
.4,
-4
S
-4
-z
0
Cl
S
'-C
S
'I
—
20.00
.A.. .
.
MV
UT- -.
I
.
MV
.i%..
.
.
yr
0.00
-20.00
—40.00
16.50
C,
15.50
0
w
a 14.50
I-
N)
03
CA)
i_i-tiIutii
13.50
IAPR
LEG 5: HOURLIES0
97 N AT YUCCA TOO
69.5 DAYS STARTING 1900 GMT 9 MAR 1977
tMAY
285
JOINT—Il 1977 Installation
OPUNTIA V
Posi tion*:
Distance Offshore:
Bottom Depth:
Set:
12°l4.2'S, 77°35.9'W
41.9 km (from San Lorenzo Island)
620 m
Retrieved:
Longest Data Interval:
Longest Record Length:
1823 GMT 12 March 1977 by R/V MELVILLE
1446 GMT 18 May 1977 by R/V ISELIN
0200 GMT 13 March to 0800 GMT 18 May
66 days, 7 hours
Instrumentation
Intended
Accepted
Serial
Depth
Depth
Tape #
100 m
200 m
300 m
500 m
129 m
224 m
324 m
524 m
501/39
495/38
1962/4
1243/8
Sampling
Interval
15 mm
15 mm
15 mm
15 mm
Measured
Variables
S,T,P
S,O,T,P
S,e,T
S,O,T
Comments:
Due to compass failure, no direction data exist for RCM 501 (129 m).
Due to battery failure, data for RCM 1962 (324 m) exists only through
1400 GMT 30 April.
* Navigation: radar fixes and Peru chart DHNM 2100.
286
15
75
100
—15
45
60
—125
-150
224 II RI OPUI11A.
dd.8 Oms
1906 12
77.
324 II
49.1 ORIS
1818 12 NAR 7?
12
-4
20
—4
—a
524 II AT OPU?411A.
66.8 DAYS START2NC 1919 12 MR 77
287
STATION
LEG
DEPTH
OP'JNTIA
5
129
FIRST 5 LINES OF DATA
200 13 3 77
14.90
300 13 3 77
IL+,90
400 13 3 77 14.91
500 13 3 77 14.90
600 13 3 77
14.90
LAST
400
500
600
700
800
5
18
IR
18
18
18
TAPE NO
501/39
1293079
1291459
1
2
12912.33
3
1291656
4
1290217
5
LINES OF OATA*
5 77
1288547
5 77 13.89 1288393
S 77 13.91 1288435
5 77 13.91 128o281
5 77
13.92 1289278
1587
1588
1589
1590
1591
INTERVAL
HOURLY
FILTERING
LOW PASS
STAT ISTCS
OPUNTIA
LEG 5
129 tl
VAPIABLE
T.(OE& C)
P
MEAN
1391
STO
14.2
129.3
.5
SKEW
KURT
MAX
MIN
.0
2.1
15.3
13.2
2.7
12.7
132.3
128.5
129 N AT OPUNTIA.
12 NAR 77 - 18 NAY 77.
TAPE
JItIEAN
0.08
0
z
td
0.04
L
Ui
—I
Ui
0.02
0.01
0.00
4.7
8.2
11.6
15.1
18.5
SPEED, ON/SEC
21.9
25.2
28.6
1.9
03
0
0
129.00
a-
127.00
MAY
I APR
129 H AT OPUNTIA
66.3 DAYS STARTING
LEG 5: HOURLIES,
200 GMT 13 MAR 1977
290
OPUNTIA
LEG
DEPTH
5
224
FILTERING
495/38
HOURLV
LOW PASS
FIRST 5 LINES OF DATA:
13
300 13
400 1.
560 13
603 13
3 77
—10.9
13.9
3 77 —i5.i+
—1U.9
8.7
—26.4
—39.9
—48.5
—58.3
3 77 —13.5
3
77
3 77
—8.6
—9.8
9.3
13.0
11.1
LAST 5 lINES OF DATA:
4JC 18
5 77 —5.6 —3.7
503 18
5 77
—6.2
0.2
18
5
77
—7.0
18
5 77 —7.2
L4.j
18
5 77 —6.1
2664.6
2658.4
22.6
31.9
44.9
56.0
—3634.5
—3634.2
—3629.9
2644.1
12.77
12.86
12.90
12.83
12.59
2249003
2249009
2248992
2249029
2248952
1
13.25
2245135
13.18
13.08
13.08
2243361
1587
1588
1589
1590
2
3
4
5
2245446
STATISTICS FOR EWIU) AND NS(V) COMPONENTS
N
15Q1
AVG(u) AVG(V) VAR(U) VAR(V) 510(U) STD(V) COV(tJV) CRLTN
1.7
—2.3
45.1
51.8
6.7
7.2
—33.6 —.6942
VECTOR MEAN:
=
2.8 CMIS, DIR
JIRECTIONAL STEADINESS: 31.8
OEGREES(T)
Z
PRINCIPAL AXIS IS 137.8 OEGREES(T)
STATISTICS FOR COORDINATES ROTATED 33 OEGREES
(EOUIVALEN'r ALONGSHORE
= 150 OEGREES(T1)
OPUNTIA
224
N
MEAN
STO
SKEW
KURT
MAX
5.1
.8
3.0
26.7
.2
.3
3.6
17.3
—12.3
8.9
.3
2.9
.3
—.1
3.4
.5
2.9
12.3
S
(CM/sI
1591
8.9
U
(CM/S)
1591
.3
V
T(DEG (.)
P
LEG 5
'1
1591
12.6
—26.2
14.1
11.7
223.9
(4
'4
(A
Ca
'4
(3
•3
'I
C,
SIECIRAL DENSITY
0
0
•o
0
8
0
0
0
0
0
0
'4
'0
0
0,
0
0
'a
0
&4
0
0
e
'4
a
'0
'(3
'a
'0
0
8
'(3
0
'3
0
0
'4
a
8
a
0
0
8
0
RE*.RTZVE
•°
0
o
•°
—
0
8
0
0
0
0
PREGUENCY
0
0
0
3
4-
0
a
a
(A
'0
a
I,
'a
3
3
3
-J
—
20.00 Jfl
—20.00 30.00
10.00
t
,
I
I
I
——
I
1
—10.00
—30.00
14.50
14.00
C,
13.00
lii
N)
a
12.00
11.00
229.00
0
224.00
0.
222.00
I MAY
224 P4 AT OPUNTIA
66.3 DAYS STARTING
LEG
HOURLIES,
200 GMT 13 MAR 1977
293
DEPTH
324
LEG
STATION
OPUNTIA
5
FIRST 5 LINES OF DATAI
—2.0
100 13 3 77 —4.3
-4.5
20U 13 3 77 —7.1
3 77 —lu.3 —6.5
3u0 13
—8.7
3 77 —iu.2
'+00 13
500 13 3 77 —4.0 —8.9
LINES OF DATA I
—8.4
6.3
4 77
—2.7
5.J
77
30
1.6
4 77
1.8
1200 3C
2..
4 77 —3.3
1300
3.6
5.7
71
LAST
INTERVAL
HOURLV
TAPE NO
196/24
—4.3
—11.4
—21.7
—31.8
—35.8
—2.0
—6.4
—12.9
1562.7
—2285.9
—2288.6
—2287.0
—2284.6
—2281.0
—21.6
—30.5
5
lCOu
1569.5
1566.2
1560.5
10.03
lb.07
10.14
10.33
10.65
11.29
FILTERING
LOW PASS
I
2
3
5
10.99
1162
1163
1164
10.59
10.55
1165
11.66
STATISTICS FOR E—W(U) AND N—S(V) COMPONENTS
N
1166
CRLTN
STO(U) STO(V) COV(UV)
—.4991
—13.0
6.8
5.3
AVG(U) AVG(4) VAR(U)
1.3
—2.0
28.5
146
2.4 CM/S, DIR
MEAN: SPO =
DIRECTIONAL STEADINESS: 31.6 X
PRINCIPAL AXIS IS 147.8 DEGREES(1)
STATISTICS FOR COORDINATES ROTATED 30 DEGREES
150 DEGREESC 11)
(EQUIVALENT ALONGShORE
LEG 5
OPUNTIA
324 M
VARIABLE
N
MEAN
STO
SKEW
KURT
MAX
MIN
4.8
.7
2.8
23.3
.2
S (CMfs)
1166
U (CM/S)
1166
.2
4.1
.0
2.9
12.0
—13.2
V (CM/S)
1166
—2.4
7.6
.1
3.1
21.1
—22.4
r(OEG C)
1166
2.6
11.7
8.3
.5
294
324 11 At OPUNTIA.
12 liAR 77 — 30 APR 7?.
TAPE
1962/4
0. Id
0.14
0.12
,.
0.10
o.oa
U.
w
0.06
0.04
0.02
0.00
3.6
5.9
8.1
10.4
12.6
14.8
17.1
19.3
21.6
23.8
26.0
SPEED, Cl/SEC
0.07
0.06
0.05
0.04
0.03
I,,
'C
0.02
0.01
3.00
0
20
60
80
100
120
140
160
180
200 223
240
260
283
300
320
341
360
DIRECTION. DEcRIES TRiE
1000
100
10
0.I
-3
—2.3
-2
—1.5
—l
—0.5
0
0.3
FREOIZRCY• CYCLES PER DAY
1.5
2
2.5
3
z0.00
0.00
D —20.00
30.00
x
10.00
'Li
I
1-!.LLL.L•
I
YI'P
—10.00
LU ..
.
-,
—30.00
12.00
C-,,
11.00
10.00
9.00
8.00
I APR
324 14 AT OPIJNTIA
48 6 DAYS STARTING
LEG 8z HOURLIES,
100 GMT 13 MAR 1977
296
STATION
OPUNTIA
LEG
DEPTH
S
52L.
FIRST 5 LINES OF DATA:
5.4
200 13 3 77 —1.1.
77
3
1.6
2.2
360 13
13
3 77
1.3
2.1
0.6
3 77
560 13
0.2
3
77
600 13
1.2
LAST
400
506
660
700
5
TAPE
HOURLY
1
2
3
9.o
9.7
6.56
6.49
b.48
6.48
6.51
256.7
256.8
257.5
258.6
258.3
8.18
8.18
8.09
8.16
8.12
1586
1587
1583
1589
1590
—1.1
0.6
2.7
3.1
4.3
5.4
7.7
297.4
298.6
298.3
296.5
295.2
9.u
4
5
LINES OF DATA:
1
5 77
18
18
18
18
5
5
—2.0
—1.3
3.1
0.7
0.5
0.3
77
Ti
5 77
5 77
—0.3
—1.8
—1.3
N—S(V) COMPONENTS
STATISTICS FOR E—W(U)
VAR(V) STO(U) STO(V) COV(tJV) CRLTN
2.9
—3.6 —.3730
3.3
AVG(U) A%IG(J)
N
FILTERING
LOW PASS
INTERVAL
NO
124/38
1590
.2
.2
MEAN:
DIR =
.2 CM'S,
SPO =
DIRECTIONAL STEADINESS:
OEGREES(T)
6.3
7.
PRINCIPAL AXIS IS 125.6 OEGREES(T)
30 DEGREES
STATISTICS FOR COORDINATES ROTATED
DIRECTION = 150 OEGREES( TI)
(EQUIVALENT
OFUNTIA
LEG 5
524
VARIABLE
N
MEAN
STO
SKEW
KURT
MAX
MIN
2.0
.7
3.6
12.3
.1
—.1.
2.8
8.1
-8.6
.1
2.9
11 • 7
—10.7
8.6
6.3
(CM/S)
1590
3.9
U (CM/S)
15Q0
.2
S
V
i
(CPuS)
(OE(
C)
.0
2.7
3.5
7.4
.4
.3
297
524 MAT DRUMlIn.
0.14
12 MAR
77—18 MAT??.
TAPE
1243/5
4. MEAN
0.12
0.10
U
z
0.08
U
I'
'a
0.06
0.04
0.02
0.00
2.3
0
3.5
4.7
5.8
7.0
8.2
P.3
11.5
11.6
220
240
SPEED, CM/SEC
0.045
0.040
0.035
0.030
U
'a
z
0.025
a
0.020
C
C
0.015
0.010
0.005
0.003
0
20
40
60
80
100
120
140
160
180
200
260
300
330
320
310
360
DIRECTION, DECREES TRUE
100
10
z
U
0.1
—3
—2.5
—2
—1.5
—1
—0.5
FREOVENCT
0
•
0.5
CTCLE5 PES CAY
1
1.5
2
2.5
2
x
10.00
i:
—, —10.00
-'
20.00 T
0.00
.f
.&..JI_
1
> -20.00
9.00
N.)
0
C,
'a
a
I-.
MAY
APR
524 t4 AT OPUN1IA
66.3
DAYS STARTING
LEG 5t
HOtJRLIES,
200 GMT 13 MAR 1977
299
JOINT—Il 1977 Installation
PEYOTE V
Posi tion*:
Distance Offshore:
9°57.8'S, 78°24.3'W
Bottom Depth:
Set:
117 m
1150 GMT 13 March 1977 by R/V MELVILLE
1322 GMT 19 May 1977 by R/V ISELIN
1900 GMT 13 March to 0600 GMT 19 May
Retrieved:
Longest Data Interval:
Longest Record Length:
19.7 km
66 days, 12 hours
Instrumentation
Accepted
Serial
Depth
Depth
Tape #
40 m
60 m
100 m
37 'ii
496/33
499/36
2278/5
Intended
56 m
96 m
Sampling
Interval
15 mm
15 mm
15 mm
* Navigation: radar fixes and U.S. chart H.O. 22008.
Meas ured
Variables
S,o,T,P
S,o,T,P
S,0
*50
125
-150
600
—750
-P00
AT
47.0 DAYS 3TARTING *202 13 MAR 77
Pd A AT PEYOTE.
54 II AT
0.0 OATS STARTING 1204 *3 MAR 7?
0.0 DAYS STARTING *219 13 MAR 77
301
STATION
TAPE NO
DEPTH
LEG
FIRST 5 lINES OF DATA:
3 77
3 77
15.1 —35.2
15.1.
1.4.5 —34.0
29.6
1.3
3 77
16.9 —31.3
46.5
1.3
3
77
9.1+ —34.0
55.9
13
2000 13
2330 13
LAST
5
200 19
3 77
10.6 -31.3
LINES OF DATA:
5 77
330 19
5 77
19
5 77
500 19
6J0 19
5 77
5 77
8.7
9.2
11.2
19.1+
5.3
2.3
3.0
6.9
6.8
29.6
INTERVAL
FILTERING
HOURLY
LOW PASS
—35.2
—69.2
—101.0
—135.u
—166.2
17626.1 —2631+0.9
17635.3 —26337.9
1761+6.5 —26331.0
17665.9
17671.2 —26294.6
16.48
371761.
16.50
16.48
371629
1
2
371806
3
16.1+6
16.1+2
369005
368436
4
17.30
370091
1592
16.'+3
370396
369775
369783
1593
1594
1595
1596
16.70
16.25
18.37
5
3691+77
STATISTICS FOR E—W(tJ) AND P1—5(V) COMPONENTS
CRLTN
AVG(U) AVG(V) VAR(tJ) VAR(V) STO(U) STO(V) COV(tJV)
—24.8 —.4013
11.1
5.6
1.23.5
31.0
—16.5
11.1
N
1596
19.9 CM/S, DIR = 11+6 OEGREES(T)
VECTOP MEAN: 5P0 =
DIRECTIONAL STEADIMESSI 89.1 V.
PRINCIPAL AXIS IS 165.9 OEGREES(T)
STATISTICS FOR COORDINATES ROTATED 33 DEGREES
(t.QUIVALENT ALONGSHORE DIRECTION = 150 CFiREES(TJ)
PEYOTE
37
VARIABLE
N
LEG 5
'1
MEAN
STO
SKEW
KURT
MAX
PUN
(CM/S)
1596
2!.3
7.2
.2
2.5
44.4
1.7
U (CM/SI
1.596
1.4
5.7
.4
2.9
20.2
—13.3
(CM/s)
1596
—19.8
Ii. .0
1.2
5.2
26.8
T(OEG CI
1596
16.8
.5
3.9
18.9
15.7
P
1595
36.9
.5
39.0
31.1
S
V
—5.5
302
A AT PEYOTE.
13 IRR
0.08
— 19 MAY 77.
TAPE 496/33
J. AlAN
0.06
0.05
Las
0
I..
LaS
>
C
LU
0.01
0.30
5.5
9.9
14.2
18.5
22.7
26.9
31.1
25.2
42.3
51.2
SPIED, IN/SEl
0.24
0.22
0.20
0.18
0.16
U
1
'as
0
0
LaS
0.14
0.12
LI.
Ill
C
-I
'U
x
0.10
0.08
0.06
0.14
3.02
0.00
0
20
40
60
80
100
120
140
toO
180
200
223
1000
too
40
C
10
I—
U
0.!
FREDUENIT. 111118 PER OAT
240
260
280
303
320
340
360
30.00
20.00
0.00
—20.00
30.00
—
U)
10.00
—10.00
—30.00
—50.00
19.00
18.00
(A)
C,
Iii
17.00
(A)
a
16.00
15.00
40.00
38.00
3soo
34.00
0.
3200
30.00
_,_.____.__I
uiiuItIIiII_
I APR
LEG 5: HOURLIES,
66.5 DAYS STARTING 1900 GMT 13 MAR 1977
37 H AT
I MAY
304
LEG
PEYOTE
5
DEPTH
56
TAPE NO
499/36
INTERVAL
HOURLY
FILTERING
LOW PASS
FIRST 5 LINES OF DATAt
19u3
13
3 77
14.j —28 • U
1.0
2000
2100
2200
23C0
13
13
13
13
3
3
3
3
17.6 -26.9
15.8 —27.7
.31.6
17.0 -27.8
11.6 —29.4
64.4
76.0
—54.9
—82.6
—110.5
—139.9
LAST 5 LINES OF DATA:
200 19 5 77
3.9
4.6
300 19 5 77
2.2
7.+
19 5 77
1.7
7.5
500 19
5 77
3.3
7.1
60u 19
5 77
10.1
18119.8
18122.0
18123.8
13127.1
18129.4
—30028.6
—30021.2
3Uo13.7
—30006.6
—29996.5
77
77
77
77
16.07
563217
563202
15.96
15.88
15.87
56320 1
56320 1
563201
5
15. 57
564701
564701
564701
564699
1592
1593
1594
1595
1596
15.40
15 • 63
15.34
16.80
5647.06
I
2
3
4
STATISTICS FOR E—W(U) AND N-S(V) COMPONENTS
AVG(U) AVG(V). VAR(U) VAR(V) STD(U)
11.4
91.6
5.1
N
1596
STO(V) COV(UV)
9.6
—19.0
CRLTN
—.3908
VECTOR MEAN: SPO =
22.c CM/S, DIR = 149 DEGREES(T)
OIRECTIONAL STEADINESS! 94.5
7.
PRINCIPAL AXIS IS 165.0
STATISTICS FOR COOROINATES ROTATED
DEGREES
(EQUIVALENT ALONGSHORE DIRECTION = 150
PEYOTE
LEG 5
56 M
N
MEAN
Sb
23.2
7.8
SKEW
KURT
MAX
MIN
2.6
L5,3
2.5
(CM/S)
1596
U (CM/S)
1596
5.1
.4
3.4
19.9
—14.4
(CM/S)
1596
9.6
.8
4.2
13.0
—45.0
T(QEG C)
1696
15.8
.3
.5
2.5
16.9
15.2
(DEAR)
1596
56.3
.2
1.1
6.3
57.1
55.8
S
305
TAPE 499/26
13 PAR 77 — 19 fIAT 77.
56 N AT PEYoTE.
.1.IIEAN
0.0$
0.07
0.06
0.05
C,
0.04
0.03
Ui
0.02
0.01
0.00
5.5
9.9
14.2
22.7
18.5
26.9
31.1
35.2
39.2
43.0
47.3
51.2
0.30
0.25
0.20
C,
0.15
Ui
0.10
0.05
0.00
20
0
43
eo
80
100
120
140
160
103
203
223
240
260
280
300
320
340
360
DECREES
1000
100
1-
Isi
10
0.1
—3
—2.5
—2
—1.5
—i
—0.5
0
0.5
FREOUO4CY, CYCLES PER DAY
1
1.3
2
2.5
3
20.00
0.00
—20.00 -
20.00
10.00
11111 1111 III tilt
U,
—10.00
'I'll
I
C.,
—50.00
17.00
16.50
(A)
a
CI
I,'
a
15.50
I—
4A
58.00
2
a
0.
56.0054.00
IIIII,pIttIIIii,iili,ii,,,,,ipi,,,,,,p,,,,i,itiih,,,,i,,.i.,
I APR
56 H AT PEYOTE
LEG 5: HOURLIES,
66.5 DAYS STARTING 1900 GMT 13 MAR 1977
I MAY
307
STATION
PEYOTE
227/95
96
5
FIRST 5 LINES OF OATA
190G 13
3 77 10.5 —19.2
2000 13 3 77 13.5 —17.7
3 77
21u0 13
10.1 —15.9
9.6 —13.9
2200 13 3 77
2300 13 3 77
10.0 —11.5
LAST
5
200 19
19
400 19
530 19
19
10.5
20.9
77
77
0.1
5
5
77
0.4
—19.2
—36.9
—52.8
FILTERING
LOW PASS
15.75
15.75
1.
2
15.74
15.73
3
—t6.8
—78.3
15.69
5
9637.9 —21073.1
9642.4 —21070.5
14.13
14.73
14.73
14.73
14.86
1592
1593
31.0
39.6
LINES OF DATA$
4.0
5 77
—2.9
5 77
I
5
INTERVAL
HOURLY
TAPE NO
LEG
3.7
4.8
9646.5 —21)b2.0
—1.7
96i+6.9 —21&d63.7
1591+
1595
1596
STATISTICS FOR E—W(U) AND N—S(V) COMPONENTS
AVG(U) AVG(4)
—13.2
N
1596
CRITN
2262
VAR(V) 510(U) STO(V) COV(UV)
13.8
58.2
1.7
7.6
—6.1+
—.
14.5 CM/S, OIR = 155 OEGRE€S(T)
DIRECTIONAL STEADINESS: 93.5 X
VECTOR MEAN: SPO =
PRINCIPAL AXIS IS 171.9 DEGREES(T)
STATISTICS FOR COORDINATES ROTATED 30 DEGREES
(EQUIVALENT ALONGSHDRE DIRECTION = 150 OEGREES(TJ)
LEG 5
PEYOTE
96 M
VARIABLE
N
MEAN
STO
SKEW
KURT
MAX
MIN
15.5
6.5
.2
2.3
32.9
1.0
2.6
12.4
—12.9
(CM/SI
1596
U (CM/S)
1596
V (CM/S)
1596
—14.5
7.3
.3
2.9
3.2
—31.9
T(JEG C)
1596
15.2
.3
.5
2.4
16.0
14.5
S
4.4
308
96 11 AT PE'rOTE.
13 LIAR 7? — 19 FlAY 7,•
0.08
TAPE 2220/5
.I.FIERN
0.07
0.06 -
0.05
C
0.04
C
0.03
-j
0.02
0.01
3.10
J.
I
5.3
0
I
I
9.2
I
I
13.2
I
21.0
17.1
24.9
20.8
32.8
36.7
40.6
44.5
SPEED. CF/SEC
0.26
0.24
0.22
0.20
0.
'—
0.16
0.14
Ia
C
0.12
o.to
0.0B
0.06
3.04
0.12
3.30
0
20
40
60
80
100
120
140
160
100
200
220
240
260
280
330
323
340
360
DILIECTION. ICOFEEC TRUE
100
10
C
C
0.1
-3
—2.5
—2
—1.5
—i
—0.5
0
•
0.3
I
1.5
2
2.5
5
20.00 1
0.00
-20.00
;
:
> —40.00
16.50
14.00
I I
I ......, I
I
I 1111 I
I I I I
I I I I I I I I I I I I I I I I I I
(APR
LEG 5:
96 H AT PEYOTE
66.5 DAYS STARTING 1900 GMT 13 MAR 1977
I
I
I
I
310
17 MiD 76 10 7 OCT 76.
UIPC fIT IMRRPE.
TIWE 0127/0
£IIEAN
0.22
0.20
0.10
0.16
0.14
0.12
8
0.10
(U
0.00
0.06
0.04
0.02
0.00
0
2
1
7
6
5
SPEED. A/SEC
4
3
10
9
0
Ii
13
12
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0
20
40
60
00
100
120
140
160
100
200
220
240
260
200
300
320
340
2d0
DIRECTION. DECREES TRUE
100
to
t
(U
z
(3
(a
II-
0.1
0.01
—3
—2.5
—2
—1.5
—1
—0.5
0
0.5
FREOUENCT • CTCI.E3 PER DAT
1
1.5
2
2.5
3
311
6.00
4.00
0.00
—4.00
1z.00
10.00
6.00
U)
2.00
>
—2.00•
—6.00
19.00
18.00
C,
17.00
a
16.00
15.00
14.00
ISEP
0
AT IMARPE
IOCT
3:
50.5 DAYS STARTING 2200 GMT 17 AUG 1976
313
IMARPE Meteorological Installation
315
JOINT—Il 1976/1977 Installations
Meteorological Tower
I MARP E
Location:
12°03.9'S, 77°09.3'W
On a guyed tower 3 m above the roof of a building
Sampling Interval:
20 minutes.
Position:
in Callao, Peru.
Measured Variables:
Speed, direction, air temperature.
Installation Periods:
Serial
II
III
IV
V
Tape #
Installation Time (GMT)
Recovery Time (GMT)
Record Length
Dl27/7
March 19 1976
D127/8
August 17 1976
October 7 1976
March 10 1977
August 17 1976 1415
October 7 1976 1515
1400
Feb. 27 1977
89 d, 7 h
50 d, 11 h
142 d, 16 h
69 d, 10 h
Dl27/9
Dl27/10
1830
1445
1545
1815
May 19 1977
1900
Comments:
The building used for the installation was that of the Instituto del Mar del
Peru (IMARPE), located in La Punta, a borough of Callao. The building is
about 80 m long, oriented east-west, and seven stories high, the highest
for at least a kilometer in any direction.
It is situated on a narrow
peninsula or spit about 200-300 meters across that extends to the west,
with a beach and open ocean to the south (windward) and Callao harbor to
the north (leeward). Only flat, open space lies to windward between
IMARPE and the south beach. Slightly to the east of windward and across
the street, lies a series of two—story buildings. Any distortions of the
wind field are probably limited to those produced by the IMARPE building
itself.
316
29750
25500
21250
12750
8500
4250
—21250
—17000
—12750
—8500
-4250
4250
-4250
SURFACE AT IfIARPE.
89.9 DAYS STARTING 1900 19 hAY 76
317
STATION
IMARPE
FIRST S
2u
20
20
L
OEPTN
LEG
2
INTERVAL
HOURLY
TAPE NO
0127/7
3
OF OATA*
3.4
—2.2
5 76 —2.8
3.1
5 76 —1 • 1
2.1
5 76 —1 • 1
5 76
—1.4
1.8
3,4k
—2.2
—5.0
—6.1
—7.2
—8.6
5
LAST 5 LINES OF DATAI
303 17
8 76 —4.8
5.1
17
8 76
—5.1
4.2
5u3 17
8 76
• 7
..2
76
17
8
—4.4
17
8 76
—.1
—5555.0
8.6
9.4
11.2
8121.1
8125.3
8129.5
8134.9
8138.3
FILTER ING
LOW PASS
19.87
19.85
19.75
19.72
19.58
I
2
15.99
2139
2140
2141
2142
2143
16. 00
16.IC
16.84
3
4
5
STATISTICS FOR E-W(U) AN) N—S(V) COMPONENTS
AVG(U) AVG(V) VAR(U) VAR(V) 510(1) 510(V) COV(UV) CRLTN
—2.6
2.1
3.1
1.5
1.8
—1.7 -.6 716
N
2143
VECTOR MEANS SPO =
4.6 C1/S,
DIRECTIONAL
DIR = —33 OEGREES(T)
96.6
7.
PRINCIPAL AXIS IS 143.2 DEGREES(T)
STATISTICS FOR COORDINATES ROTATED 33 DEGREES
(EQUIVALENT ALONGSHORE DIRECTION
150 OEGREES(TJ)
IMARPE
LEG 2
J
VARIABLE
N
MEAN
STD
SKEW
KURT
MAX
MIN
11.3
0.c
S
(MIS)
2141
1.9
.1
2.8
U
(MIS)
2143
.9
.1
'.9
V
(M/S)
2143
TA (OEG)
2143
4.
I
—
.
.9
—.2
—5.6
3.7
11.3
—3.7
3.3
22.2
15.7
318
hIND AT ItIARFE.
19 MAT 76 10 1? AUG 76.
0.22
IRPE 0127/?
J.IIERN
0.20
0.18
0.16
0.14
::::
0.06
0.04
0 .p2
0.00
0
2
3
4
5
7
5
8
9
10
11
12
SPEED. fl/SEC
13
0.35
0.30
0.25
U
z
0
0
'Si
0.20
0.05
60
80
100
120
140
160
180 200
220
240
260
280 300
320
340
360
DIRECTION, DECREES TRUE
100
10
is,
0
-I
I-
'.5
0.1
0.01
—3
—2.5
-2
-1.5
—t
—0.5
5
0.5
IREQIJENCY. CTCLE3 PER CRY
1.5
2
2.5
3
U)
I
U)
I
>
-J
C,
U,
0
18.00
I
15.00
I AUG
I JUL
OHAT tMARPE
89.3 DAYS STARTING
LEG2
HOURLIES,
100 GMT 20 MAY 1976
320
15750
1350Q
9000
6750
2250
—11250
—9000
—6750
-4500
-2250
2250
-2250
SURFACE AT IIIARPE.
51.0 DAYS STARTING 1520 17 AUG 76
321
STATION
IMARPV
3
u
FIRST 5 LINES OF DATA:
14.8
8 76 —3.7
2230 17
2300 17
8 76 —4.3
6.0
0 18
8 76 —4.8
6.3
18
8 76 —4.?
5.6
200 18
8 76 —4.3
5.2
LAST
INTERVAL
HOURLY
TAPE NO
LEG
FILTERING
LOW PASS
—3.7
+.8
17.01+
1
—8.1
lu.8
17.1
22.7
27.9
17.39
17.41
16.88
16.81
2
3
4
5
'+251.9
'+256.1
1+263.7
16.34
16.22
16.12
16.34
15.91
1207
1208
1209
1210
1211
—12.8
—17.6
—21.9
5 LINES OF DATA:
71
1+00
7
500
6CC
7 10 76
—3.5
—3.1
703
7
7
7r
2.9
10 76
76
—25L+9.7
5.4
4.2
4.7
4.9
3.8
—2553.2
—2556.3
4265.6
—25b2.3
STATISTICS FOR E—W(U)
AVG(UI AVG(V)
N
1211.
VAR(V)
3.5
'+.2
1+269.'+
N-S(V) COMPONENTS
310(U) 310(V)
1.9
2.1
CRLTN
COV(UV)
—3.2 —.8428
MEAN:
SP!) =
—30 OEGR€ES(T)
C'l/S,
OIR
DIRECTIONAL STEADINESS: 90.6 V.
AXIS IS 138.5 DEGREES(T)
STATISTICS FOR COORDINATES ROTATED 30 DEGREES
IEOUIVALENT ALONGSHORE
ON = 150
IMARPE
VARIABLE
N
MEAN
STD
SKEW
KURT
MAX
IIN
2.0
.3
2.6
10.7
.1
5.3
—3.6
(MIS)
1211
4.5
U (MIS)
1211
—.1
TA
(DES)
LEG 3
1211
2.6
—.7
3.8
10.7
—5.8
1211
.7
.7
3.7
19.0
14.6
322
22400
19200
16000
12800
9600
6400
3200
—16000
—12800
—9600
5200
-3200
SURFACE AT IIIARPE.
71.6 DAYS STARTING
7 OCT 76
323
23450
20100
16750
13400
10050
6700
—16750
—13400
-10050
—6700
-3350
-3350
SURFACE AT IMARPE.
71.6 DAYS STARTING 650 18 DEC 76
324
STATION
IMARPE
INTERVAL
HOURLY
TAPE NO
DEPTH
LEG
0127/9
C
FIRST 5 LINES OF DATA!
5.6
2300 7 IC 76 —2.6
4.9
8 IC 76 —2.8
0
3.7
100 8 10 76 —2.4
3.0
200
8 10 76 —1.9
3.2
10 76 —1.8
—11.5
1.7.2
20.1+
16.77
16.77
lc.l1
16.78
16.70
—7911.5
—1912.3
—7912.0
—7913.2
—7914.8
12589.2
12592.1
12594.9
12597.9
12601.1
20.60
20.59
20.68
21.17
21.56
—2.6
—5.5
—7.9
—9.7
5.6
10.5
14.2
FILTERING
PASS
I
3420
2
3
LI.
S
5 LINES OF DATA!
LAST
1300 27
1100 27
1300 27
27
2
77
2.O
2
2
2
2
77
77
77
77
—0.8
0.3
—1.1
—1.6
3.:1
2.8
2.8
3.1
3.2
3421.
3422
31+23
3424
STATISTICS FOR E-W(U) AND N-S(V) COMPONENTS
AVGIU) AVG(V) VAR(U) VARIV) STOtU) STO(V) COV(UV) CPLTN
—1.5 —.721+8
1.6
1.3
3.7
2.5
—2.3
N
342k
VECTOR
14,3 Cl/S. DIR = —31. OEGREES(T)
SPC =
DIRECTIONAL STEAOINESS! 95.9 X
AXIS IS 142.1. DEGR€ES(T)
DEGREES
OEGREESET])
STATISTICS FOR COORDINATES ROTATED
(EQUIVALENT ALONGSHORE DIRECTION =
IMARPE
VARIABLE
N
S (M/S)
3424
U
(M/S)
3424
V
(M/S)
TA (DEG)
3421+
3M
LEG 4
MEAN
STO
SKEW
KURT
MAX
MIN
4. 5
1.6
—.0
2.7
9.2
.2
.8
.6
3.9
4.5
—2.9
5.1
9.1
—4.7
2.0
24.9
15.2
4.3
1.9
23.0
1.9
—.2
325
lUND Al UIARPE.
7 OCT 76 TO 27 FEB 77.
0.24
TAPE 0127/9
J,I1EAN
0.22
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
O
2
1
3
4
5
6
7
9
B
10
12
11
SPEED, S/SEC
0.40
0.35
0.30
0.25
'a
'a
II.
0.20
'a
0.15
0.10
0.05
0.00
0
20
40
60
80
100
120
140
160
180 200 220 240
DIRECTION. DECREES TRUE
260
280
300
320
340
360
too
10
zbJ
a
-J
C
C
0.1
0.01
—3
—2.5
—2
—1.5
—1
—0,5
5
0.5
FREQUENCY, CYCLES PER OAT
1
1.S
2
2.5
3
1.frn
I
10.00
7.101
C.'.)
N.)
w
n
a
19.90
17.90
15.50
1990
11.51)- 4! H I I H
I
I
I
I
I—I-I
110-I H I--I H 11+1 I-I
I
I-I—I-I 4.! I-I 04-4
I I-I
I
II
I-I H 0-44-I
J
I-H H4-J I Ill--H 3-I-I
I
I
I
112.7 1)011)
0)01)1,96 2)1)1)
.9
64-4)
7 ocr
isic
I-I—I
4—04-I I—I
I
I
I
I
I
327
18550
15900
10600
7950
2650
—10600
—7950
—5300
2650
—2650
-2650
SURFACE AT IMARPE.
69.9 DAYS STARTINC 1901 10 MAR 27
328
ST4
I
LEG
AR P E
OE2TH
TAPE NO
0i27/iO
5
INTERVAL
FILTERING
HOURLY
LOW
FIRST S LIt1ES OF DATA:
11
11
Ii
Ii
11
LAST
S
3
3
77
77
7/
3 77
—3.7
—2.8
5.2
—3.3
—2.5
—3.7
—6.5
—9.9
—13.3
9.7
22.u
PASS
j
21.+4
21.27
21.2
21.J9
2
3
5
LINES UF flAlAt
19
5
19
5
19
19
5
5
5
77
77
77
77
—26.2.3
—2.7
—2.4
—1.9
—u.3
18.38
18.28
18.11
—2b0Z+.7
—26L&.7
1663
STATISTICS FOR E—W(U) AN) N—S(V) COrIPONENTS
—i.e
5.1
MEAN:
STJ(U)
2.2
3..+ OIlS,
=
CRLTN
—.8593
—26 JEGREES(T)
STEADINESS:
IS
COV(UV)
—3.4
DEGREES(T)
FOR COJROINATE3
CEGREES(T))
=
I.IARPE
5
(M/3)
1656
.9
U (MiSs
fM/5)
TA
1666
3.
1665
1J.9
LEG 5
STO
SKEW
KURT
1.8
.1
2.7
'i IN
9.
0
5.7
-2.9
—.9
3.6
—s.a
.1
2.2
.8
2.8
iAX
23.6
16.6
329
WIND AT IIIMRPE.
10 lIAR
77 - 19
MAY 77.
TAPE 0177/lO
MEAN
0.22
0.20
0.18
0.16
0.14
1-
U
0.12
0.10
.6
0.08
0.06
0.04
0.02
0.00
2
1
5
4
3
7
6
10
9
8
12
11
SPEED. A/SEC
0.35
0.30
0.25
U
z
0.20
C
U
0.15
0.10
0.05
0.00
20
0
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
340
360
DIRECTION. DECREES IRIJE
100
10
t4
zU
0.1
0.01
—3
—2.5
—2
—1.5
—l
—0.5
FR02UENCY •
0
0.5
CYCI.E3 PER flAY
1
1.5
2
2.5
3
In
x
D
—4.00
In
x
200
>
24.00
23.00
(A)
(A)
22.00
cD
21.00
Co
w
0
20.00
19.00
18.00
17.00
16.00
I APR
0 N AT IMARPE
69.4 DAyS STARTiNG
MAY
LEC
HOURLIES,
200 CMI 11 MAR 1977
I
331
APPENDIX I
JOINT II Navigation Charts
and Positions
333
JOINT II Navigation Charts and Positions
The lack of a single chart with a coastline and bathymetry in which
we could be confident plagued us throughout the JOINT II experiment
Although we operated from Chimbote (9°S) to south of San Juan (16°S), most
of the work was concentrated between Cabo Nazca and Punta Ana, near l5°S;
unfortunately, this is a strong candidate for being the worst charted part
of the coast.
The charts of the Pisco-San Juan area that we found and used all had
soundings based on an 1836 British survey, with some later additions A
German chart (DHI—721) was used to obtain positions for Leg 1 moorings
from radar fixes aboard the R/V ALPHA HELIX, in March 1976
The coastline
on DHI—721 seems to correspond fairly closely to that on the U S chart
(H.O. 1218), which cautions: "The coastline for about 10 miles to the southeastward of Pta del Infiernillo is reported to lie about 1¼ miles southwestward of its charted position"
For the rest of the experiment our navigators
mainly referenced their radar fixes to the Peruvian chart (DHNM 2200), though
occasionally satellite fixes were accepted While the soundings on DHNM 2200
and HO. 1218 are apparently based on the same source (i.e. the 1836 survey), the
coastline was based on a topographic chart of the Military Geographical
Institute of Peru (IGM).* This coastline does not agree well with that
of the German and US charts
Positions of prominent coastal navigation points from Infiernillo
(l4°40'S) to Pta. Lomas (15°33'S) are shown in Table Al.1, as they were
determined from each of the three charts. The same features on the German
and U.S. charts lie within ½ n.m. or less of each other; this suggests that
their coastlines are based on the same source (as were the soundings).
Features on the Peruvian chart lie l-1½ n.m. from those of DHI-72l and
H.O. 1218, in some instances to landward (Cabo Nazca, Pta. Santa Ana) and
in others to seaward (Pta. San Juan, Pta. Lomas). Near Infiernillo the
coastline on the Peruvian chart lies north and west of the one on the U.S.
and German charts, as opposed to the reports that the true coastline lies
to the southwest (seaward). This seems to confirm that the DHNM 2200 coastline was based on a different survey. The lack of agreement between surveys
is not surprising, considering the rugged, uninhabited nature of the area.
Before we were aware of the discrepancy between charts, we assumed
that mooring positions were known to within no less than a nautical mile
in order to avoid inconsistencies Now we feel it sensible to state
positions to the nearest 1/10 mile relative to the charts used to determine
them
Correcting for chart discrepancies usually makes the positions
mutually consistent with each other within the limits of typical coastal
navigation uncertainties (±0.2 n. miles).
* The 1GM Topographic charts we used for land work were based on aerial
photographs and geodetic control done by 1GM in collaboration with the
Inter-American Geodetic Survey in 1966.
334
Table Al.1
Positions of coastal features as determined
from three navigation charts used in the
JOINT II Experiment.
Coastal
Feature
D.H.I. 721
H.O. 1218
DHNM 2200
Infiernillo
14°40.4'S/75°55.O'w
14°39,8'S/75°55.O'W
14°38.2'S/75°55.8'w
Cerro Do?ia Maria
14°41.2'S/75°50.2'w
14°40.8'S/75°49.8'w
14°39.5'S/75°50.8'W
Pta. Olleros
14°46.7'5/75°43.l'w
14°46.O'S/75°43.l'w
14°46.7'S/75°44.O'W
C. Nazca
14°57.O'S/75°31.5'W
14°56.8'S/75°31.l'w
14°57.3'S/75°29.8'W
Pta. Sta. Ana
15°08.O'S/75°23.O'w
15°07.9'S/75°22.6'W
15°O8.7'S/75°21.9'W
Pta. San Juan
15°21.O'S/75°ll.tJ'w
15°21.2'S/75°1O.8'W
15°21.7'S/75°ll.3'W
Pta. Lomas
15°32.8'S/74°51.7'w
15°33.4'S/74°50.5'W
15°34.O'S/74°51.Q'W
335
A related problem concerns the bathymetric chart of the JOINT II
area produced by O'Brien and Preller, based on the R/V MELVILLE survey of
May 1977 (Preller, CUEA Newsletter
6f4]) Some investigators may have
noted (as we have) that stations plotted on this chart are shown to be
shallower in depth than was indicated by the ship's PDR when the station
was taken (or by pressure sensors, in the case of Aanderaa current meter
moorings).
Figure Al.l (redrawn from O'Brien and Preller) shows how this
inconsistency may be related to the coastline discrepancy The positions
of Cabo Nazca and Pta. Santa Ana as determined from DHI-721 and H.O. 1218
(not shown) plotted very close to the corresponding points on the O'Brien-
Preller chart The DHNM 2200 points plot considerably east of, and somewhat
south of the points on the other three charts (see triangles, Figure Al 1)
The Leg V (1977) current meter mooring positions, based on DHNM 2200,
appear too shallow relative to the isobaths (squares)
If they are re-plotted
using the same range-crossings, but relative to the O'Brien-Preller navigation
points, the depths become more reasonable (small circles)
Leg I mooring
positions (crosses) do not appear to be in serious conflict with the
O'Brien—Preller chart, consistent with the fact that those positions are
based on radar fixes on the DHI—72l chart.
In particular, the AGAVE depth
and offshore distance appear much more reasonable than on DHNM 2200,
where it shows up as being in 60-70 m of water, and 2.3 n m from shore,
AGAVE was in fact set about 3/4 n.m. from shore at a bottom depth of 40
m.
Which chart is more correct in an absolute sense is not certain.
The processed satellite positions from Scripps appear to lie consistently
seaward of the corresponding radar positions on DHNM 2200 (O'Brien,
personal communication)
The positions given in Table Al
and in the
1
installation summaries are the original coordinates determined from the
noted navigation charts, and uncorrected for discrepancies between charts
Users are hereby advised of these discrepancies, and if they wish to make
corrections, we recommend the above procedure.
336
Figure A1.1
Bathymetry and coastline from the O'Brien—Preller chart.
Leg I navigation
and moorings ( ÷ ) were
referenced
to
the
DHI
721
chart; Leg V
navigation points (
and moorings (0 ) were
referenced to the DI-INM 2200
charts. Leg V moorings were then
to account for the discrepancy
between navigation points (i,e,.. coastline) on the
two charts.
points (0)
)
(0)
337
APPENDIX 2
Calibration of the Aanderaa Temperature
Sensors Used in JOINT II
339
Calibration of the Aanderaa Temperature Sensors used in JOINT II
The temperature sensors of the Aanderaa current meters are calibrated
at OSU by immersing several current meters in a bath whose temperature is
measured by a quartz probe. The quartz probe is itself calibrated at least
once per year. Details of the calibration procedure have been described by
Barstow (1978).
All but one of the current meter and buoy temperature sensors used in
JOINT II were calibrated in this manner at least once. Most of the current
meters were calibrated both before and after their use in JOINT II. Some
of the current meters were new when the experiment began, and there was no
time to calibrate them before the experiment. Others were lost at sea,
either during the experiment, or very soon afterwards, and no post-JOINT II
calibration could be made.
Temperature Data from Current Meters
The resolution of the temperature sensors of the Aanderaa current
meters is about 0.02°C. For each current meter, we compared the post-
JOINT II calibration with the pre-JOINT II calibration, over the actual
temperature range observed by that current meter during JOINT II.
Current
meters for which the pre- and post-calibrations were essentially identical
(within ±2 bits, or ±0.04°C) are listed in Table A2.l (first column). For
some current meters, the post-calibration did not agree with the precalibration; this generally occurred only when there was a long time (two
or three years) between the two calibrations. For these current meters
(second column) we used the post—JOINT II calibration curves to process
the data. All but one of the current meters which had not been calibrated
prior to JOINT II were calibrated afterwards. The post-calibration information was used to process the temperature data from these instruments (third
column).
For all but one of the current meters lost before post—calibration
was possible (Table A2.2), we used the pre-calibration to process the
data. Our long—term calibration records indicate that the calibration of
each instrument generally changes by less than 0.1°C, but one change of
0.2°C has been observed. We estimate the accuracy of this group to be
well within 0.2°C.
The one remaining current meter (Parodia, 24 m) had no recent calibration, and was lost with Peyote II, a mooring that had been left on the
Peru shelf off Huarmey in May 1977, for recovery in November 1977. No
trace of this mooring was found during the recovery attempt. The data from
24 m, Parodia was processed using an average calibration curve for OSU
current meters.
Table A2.1
Locations and depths of current meters for which (a) pre—JOINT II
and post-JOINT II temperature calibrations changed by 0.04°C
or less; (b) pre-JOINT II and post-JOINT II temperature
calibrations did not agree (post—calibration curves were
used to process the data); (c) no pre—JOINT II calibrations
exist. The precision of the Aanderaa water temperature
channels is believed to be ±0.04°C.
(a)
Installation
Phase
Leg I:
Station
Name
Agave
Sour
Mila
Islaya
Lobivia
Leg II:
Mila
Lagarta
Pre- and postcalibrations agreed
29 m
80 m
(b)
(c)
Post—calibrations used
Not pre—calibrated;
Post—calibrations used
Pre- and post-calibrations disagreed;
28,53 m
10 m
100 m
78 m
206,556 m
41,66,116 m
406,626 m
62 m
33,84,109 m
312,412 m
Yuca
115,212 m
80,100 m
Leg III:
Mila
79,104 m
Leg IV:
Mila
23,48,73 m
Leg V:
Agave
26,67,77 m
39,59,80,100 m
24,44,63,105,155,180 m
92,115,214 m
58,83 m
46 m
19 m
Euphorbia
Opuntia
63 m
26 m
Yucca—Too
37 m
56 m
Mila
Ironwood
Lagarta
Lobivia
Peyote
28,53 m
115 m
512 m
183,283 m
129,324 m
224,524 m
57 m
97 m
37,96 m
341
Table A2.2
Locations and depths of current meters for which
there is no post-JOINT II calibration data, with
the serial/tape number and the date of last
calibration. For the current meters calibrated in
1976, the accuracy of the temperature data is
believed to be ±0.04. For the remainder, the
accuracy is believed to be within ±0.2°C.
Leg I
Lobivia
Leg IV
Mila
Leg
Parodia
Parodia
Parodia
V
106
m
(684/28)
27
Nov. 73
99
m
(503/34)
4
Feb. 76
24
64
104
m
(438/24)
(452/37)
(485/35)
no
14
m
m
4
recent calibration
Sept. 73
Feb. 76
342
Water Temperature Data from Meteorological Buoys
A similar study was made of the water temperature sensors on the
meteorological buoys. The sensors are made by Aanderaa, and the data is
recorded by Aanderaa data loggers. The resolution of the data is ±0.08°C.
The temperature data from the buoy temperature sensors is, therefore,
of lesser quality than the data from current meters. If the pre- and
post-calibrations agreed to within ±2 bits (±0.16°c), we deemed them to
be identical.
Some of these temperature sensors exhibited a drift, which was
apparently caused by a very small leak. All of the data was therefore
compared with 3 m temperature data from CTD casts whenever possible.
The results are summarized in Table A2.3.
343
Table A2.3
Post— and
Pre—Caljb.
Agree
Mooring
Mila lB
Summary of 3 m water temperature data
from meteorological buoys.
no
post—calib.
Agrees
Data
with CTD
Accepted as
Data
Good
yes
yes
Mila II
no
no
no
Mila V
yes
yes*
yes
Ironwood
no
no
no
Lagarta
no
no
no
Euphorbia
yes
yes*
yes
Parodia
yes
yes*
yes
* Very little CTD data available for comparison.