School of
OCEANOGRAPHY
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OREGON
ER
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j, 335
A Compilation of
Observations from
Moored Current Meters
Volume XIV
Part B
Current, Temperature and Pressure
In the Drake Passage
During Drake 79
January 1979-January 1980
by
R. D. Pillsbury
J. S. Bottsro
OREGON STATE UNIVERSITY
R. E. Still
Data Report 91
Reference 81-17
December 1981
National Science Foundation
Grant No OCE-7823579
School of Oceanography
Oregon State University
Corvallis OR 97331
C-
A COMPILATION
OF OBSERVATIONS
FROM MOORED CURRENT METERS
VOLUME XIV
PART B
CURRENTS, TEMPERATURE AND PRESSURE
IN THE DRAKE PASSAGE
DURING DRAKE 79
January 1979 - January 1980
by
R. D. Pillsbury
J. S. Bottero
R. E. Still
Data Report 91
Reference 81-17
December 1981
National Science Foundation
Grant
No. OCE-7823579
TABLE OF CONTENTS
Introduction
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1
The Current Meter Program.
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Description of Processed Data.
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Acknowledgments .
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References
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43
Installations
MS-1
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MS-2
MS-3.
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MS-4 .
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MS-5 .
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MS-6 .
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145
MS-7.
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177
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211
Appendix
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ABSTRACT
Internally recording instruments were installed in the
Drake Passage in January 1979 and recovered in January
1980.
Additional instruments were installed at this time
for the first experiment in the Pilot Ocean Monitoring
Experiment. These are to be recovered in March of 1981.
The array consisted of seventy current meters on
twenty-four moorings. In addition there were twenty-eight
temperture/pressure recorders and four thermistor chains
installed on these same moorings.
The data were taken at
one hour intervals.
In this report, some of the current meter measurements
are summarized through pertinent statistics, progressive
vector diagrams, real time plots, stick figures, rotary
spectra, and conventional power spectra.
1
Introduction
DRAKE 79 was the major experiment of the International
Southern Ocean Studies (ISOS) program. It followed
of preparatory experiments called
FDRAKE,
a series
and like them was
designed to study circulation and transport processes in the
region of the Drake Passage. FDRAKE began in January of
1975 with extensive hydrographic and chemical data
collection (Anon., 1976 and Nowlin et al., 1977)
supplemented by an array of both short and long term current
meter moorings (Pillsbury et
al.,
1976, 1977).
This
experiment was continued in January of 1976 (FDRAKE 76) with
the collection of additional hydrographic data and the
setting of a second long term current meter array by the R/V
T. G.
THOMPSON.
The current meter array was recovered by
the R/V MELVILLE in January of 1977 as a part of FDRAKE 77
(Sciremammano et al., 1978).
The R/V MELVILLE deployed
a cluster array in January 1977 which was recovered on the
AGS YELCHO in December 1977.
set at that
time and recovered
A single
mooring,
Yelcho, was
by the R/V MELVILE
in January
The data from the cluster array and the Yelcho mooring
1979.
are presented in Pillsbury et
al.,
1980.
DRAKE 79 was designed to study the time and space scales
of flow variations near the Drake Passage, and to expand our
knowledge of the distribution of water mass properties and
their dynamics in this important region of the world's
ocean.
In this report a compilation of the data from some of
2
the DRAKE 79 current meters is presented. The data from the
thermistor chains, temperature/pressure recorders,
conductivity cells on the Aanderaa meters and remaining
current meters will be presented in a data report to be
issued by Texas A&M University. The complementary
hydrographic data are presented in a report (Worley and
Nowlin, 1979). The hydrographic data from the recovery
cruise aboard the R/V ATLANTIS II will be in a data report
to be issued by Texas A&M University.
The pressure
measurements made to complement the hydrographic and current
meter data will be presented in a report to be issued by the
University of Washington.
The Current Meter Program
Figure 1 shows the Main Line (ML) array consisting of 48
current meters on 17 moorings; and the Mapping and
Statistics (MS) array with 22 current meters on 7 moorings
deployed upstream in the Antarctic Circumpolar Current.
Figures 2 and 3 show the duration of data for each meter.
The data from the ML array
report.
are presented
in Part A of this
The data from the MS array are presented in Part B.
The general calibration techniques for the Aanderaa
meters used have been previously discussed (Pillsbury et
al., 1974, 1980).
All of the current meter moorings were subsurface,
taut-wire moorings.
Their design followed in large part the
Woods Hole Oceanographic Institution intermediate mooring
3
Figure 1, The configuration of the cureent
installed in the Drake Passage in 19790
7 0°
65° W
DRAKE 79
54° S
56°
58°
60°
O PRESSURE GAUGE MOORING
0 CURRENT METER MOORING
0 Aonderoo
6 2°
A
current
meter
Geodyne current meter
Temperature /pressure
recorder
meter moorings installed
60°
11
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6
scheme (Heinmiller and Walden, 1973).
Description of the Processed Data
Data from each installation are presented separately.
The header page gives information about the mooring
location, instrumentation, data interval and a statement
describing the kind of data collected at that point and the
quality of the record.
For a discussion of the depths
assigned to the meters see the appendix.
Each meter has a serial number assigned to it by the
manufacturer.
Each successive tape recorded by that machine
is numbered with the serial number and the tape number.
Thus, 485/10 indicates the tenth tape recorded by machine
485.
The table of statistics following the header page gives
the arithmetic mean, standard deviation, skewness, kurtosis,
maximum value, minimum value and the number of hourly values
of the record length for each variable measured.
U is the
true east-west velocity component and V is the true
north-south velocity component.
Progressive vector diagrams, real time plots, stick
figure plots, rotary spectra, and conventional power spectra
follow the table of statistics.
Data were taken every hour.
Plots which show each point are too long to be easily
included in this report.
To reduce the plots and still
present the important low frequency fluctuations, the data
were filtered with a 60 + 1 + 60 point, Cosine Lanczos
filter with a half-amplitude at 34.3 hours and a half-power
The data were then resampled at 6 hour
at 40 hours.
intervals.
This filter was designed to remove both tidal
and inertial oscillations. The conventional power spectra
are calculated from unfiltered data.
ACKNOWLEDGMENTS
The funds for the program came from the National
Science Foundation grant OCE - 7823579 which is gratefully
acknowledged.
Appreciation is also expressed to B. Moore,
J. Simpkins, E. Seifert and D. Barstow for calibration and
preparation of the instruments.
Special appreciation to D.
Root. for his careful and extensive data processing and to G.
Pittock who assembled this report.
REFERENCES
Anon.
FDRAKE:
CONRAD 18-01 February 2 to March 12, 1975.
a component of ISOS. Data Report. Lamont-Doherty
1976.
Geological Observatory unpublished technical report,
Palisades, New York, 10964.
Heinmiller, R.G. and R.G.Walden. 1973. Details of Woods
Hole Moorings. Woods hole Oceanographic Institution
Technical Report 73-71.
Nowlin, W. D., T. Whitworth, L. I. Gordon and G. Anderson.
Oceanographic station data collected aboard R/V
MELVILLE during FDRAKE 75. Texas A&M University, Department
of Oceanography, College Station, Texas. Reference 77-2-D.
1977.
8
Pillsbury, R. D., F. Sciremammano, Jr., J. S. Bottero and R.
E. Still. 1980. A Compilation of Observations from Moored
Current Meters, Vol.XII, Currents, Temperature and Pressure
in the Drake Passage during FDrake 77, 78, January 1977 January 1979. Oregon State University, School of
Oceanography, Corvallis, Oregon. Data Report 82. Reference
80-11.
1977.
A
Pillsbury, R. D., J. S. Bottero and R. E. Still.
Compilation of Observations from Moored Current Meters, Vol.
X, Currents, Temperature and Pressure in the Drake Passage
during FDRAKE 75, February 1975 - February 1976.
Oregon
State University, School of Oceanography, Corvallis, Oregon.
Data Report 67.
Reference 77-8.
1976.
A
Pillsbury, R. D., J. S. Bottero and R. E. Still.
Compilation of observations from Moored Current Meters, Vol.
IX, Currents, Temperature and Pressure in the Drake Passage
during FDRAKE 75, January - March 1975. Oregon State
University, School of Oceanography, Corvallis.
Data Report
65.
Reference 76-6.
1974.
A
Pillsbury, R. D., J. S. Bottero and R. E. Still.
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.
Sciremammano, F., R. D. Pillsbury, J. S. Bottero and R. E.
Still.
1978.
A Compilation of Observations from Moored
Current Meters, Vol. XI, Currents, Temperature and Pressure
in the Drake Passage during FDRAKE 76. Oregon State
Data Report
University, School of Oceanography, Corvallis.
68.
Reference 78-2.
Worley,S.J. and W. D. Nowlin, Jr. 1979 Oceanographic Data
Collected Aboard the R/V MELVILLE During January-February
1979 and AGS YELCHO During April-May 1979 as a part of DRAKE
79.
Texas A&M University, Department of Oceanography,
Reference 79-7-T.
College Station, Texas.
9
MS -
1
6L61 A8vnNV 6Z a3-1d1SNI
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°N
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WOOZI ID 129-91 *ON
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40
'°N
of
11
MS-1
Position:
59°49.3'S, 67°30.5'W
Depth of Water: 3610 m
Set at 1148 UCT 29 January '79 by R/V MELVILLE
Retrieved at 1342 UCT 29 January '80 by R/V ATLANTIS II
Data Interval: 1402 UCT 29 January '79 to 1402 UCT 21 January '80
Instrumentation
Intended Depth
RCM5 Serial No./Tape No.
1534/12
1533/16
2277/14
500 m
1200 m
2500 m
Instrument 1534 recorded speed, direction, temperature, and pressure
once per hour until the instrument was recovered. The record contained
sporadic sections, totalling about 10%, where one or more extra bits were
set in the data words. Speed, temperature, and pressure were initially
corrected by subtracting out these extra bits where they could be
identified. In addition, sections of unsalvageable garbage were found.
Speed, direction, U, and V have been zeroed in the following intervals:
(4 JUL '79 to 11 AUG '79) and (29 NOV '79 to 31 DEC '79). Temperature
has been set to zero from (13 JUL '79 to 21 JUL '79) and (27 DEC '79 to
Pressure has been set to zero in these intervals:
31 DEC '79).
28 AUG '79 - 3 SEP '79
13 APR '79 - 23 APR '79
23 MAY '79-- 6 JUN '79
4 JUL '79 - 11 AUG '79
6 NOV '79
29 NOV '79
- 11 NOV '79
-
25 DEC '79
Instrument 1533 recorded speed, direction, temperature, and pressure.
Direction, temperature, and pressure were recorded once per hour until
The following intervals in the speed file
the instrument was recovered.
were bridged due to an instrument malfunction:
18 MAY '79 - 20 MAY '79
9 JUN '79 - 10 JUN '79
Instrument
2277
9 AUG '79 - 10 AUG '79
14 JAN '80 - 17 JAN '80
recorded speed, direction, temperature, and pressure.
Direction, temperature, and pressure were recorded once per hour until
recovered. The interval from 15 JAN '80 to 16 JAN '80
in the processed speed file was bridged due to a rotor counter malfunction.
the instrument was
12
MS-1
685 m
MEAN
S.D.
SKEW
KURT
MIN
MAX
N
S
10.49
5.02
0.52
2.67
0.80
27.20
6913
U
0.87
8.37
-0.36
2.97
-25.70
24.30
6913
V
3.20
7.36
-0.32
3.03
-22.50
25.70
6913
T
2.30
0.07
-0.38
3.20
2.03
2.50
8273
P
688.28
10.40
3.17
15.45
679.40
764.90
6188
1383 m
S
6.48
3.29
0.84
3.89
0.70
22.30
8565
U
0.62
5.29
-0.38
3.43
-22.30
19.20
8565
V
2.15
4.46
-0.34
3.22
-14.20
18.10
8565
T
1.97
0.06
-0.58
3.31
1.72
2.13
8565
P
1390.26
7.73
3.77
20.64
1383.40
1455.80
8565
2685 m
S
4.82
2.75
0.74
3.66
0.80
18.00
8569
U
-0.46
4.28
-0.27
3.18
-17.20
15.60
8569
V
0.94
3.37
-0.11
3.44
-13.60
13.70
8569
T
1.09
0.06
-0.20
2.27
0.90
1.27
8569
P
2698.65
2.74
3.95
23.75
2694.50
2724.00
8569
Speed, u, and v are given in cm/sec; temperature
in decibars; and conductivity in mmhr/cm.
in degrees centigrade; pressure
13
685 M AT STN MS-I.
157.1 DAYS STARTING 1421 29 JAN 79.
14
T 400
240
1-160
685 M AT STN MS-i.
109.9 DAYS STARTING 1121 11 AUG 79.
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685 METERS AT MS1
LLP FILTERED U COMPONENT
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1383 METERS AT MS1
LLP FILTERED U COMPONENT
10
FEB
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2685 METERS AT MS-1
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1383 METERS AT MS1
LLP FILTERED TEMPERATURE
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720
710
700
690
680
670
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FEB
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JUN
JUL
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LLP FILTERED PRESSURE
SEP
OCT
NOV
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JAN
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1380 +
1370
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LLP FILTERED PRESSURE
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1000
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2
UNFILTERED CURRENT.
1383 METERS AT MS-1
0.01
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-2.5
-2
-1.5
-1
-0.5
0
0.5
1
FREQUENCY, CYCLES PER DAY
1.'s
2
2.5
3
UNFILTERED CURRENT.
268S METERS AT MS-1
1000 1
I
100 f
0.01 +
-3
4
-2.5
-2
-1.5
-1
-0.5
0.5
1
FREQUENCY, CYCLES PER DAY
1.5
2
2.5
3
35
UNFILTERED CURRENT.
685 METERS AT MS-1.
FREOUENCY, CYCLES PER DAY
36
UNFILTERED CURRENT.
1383 METERS AT MS-1
FREQUENCY, CYCLES PER DAY
37
2685 METERS AT MS-1
UNFILTERED CURRENT.
100 1
0.01
95 PERCENT
r
0.001
0.01
I
I
I
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FREQUENCY, CYCLES PER DAY
l
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109
38
UNFILTERED TEMPERATURE.
885 METERS AT MS-1.
0.1
0.01
0.001
0.0001
0.00001
0.008801
0.8000001
0.01
0.1
1
10
FREQUENCY, CYCLES PER DAY
108
39
UNFILTERED TEMPERATURE.
1383 METERS AT MS-1
FREQUENCY, CYCLES PER DAY
40
2685 METERS
UNFILTERED TEMPERATURE.
AT MS-1
0.81
0.000001
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95 PERCENT
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FREQUENCY, CYCLES PER DAY
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41
UNFILTERED PRESSURE.
1383 METERS AT MS-1
FREQUENCY, CYCLES PER DAY
42
UNFILTERED PRESSURE.
2685 METERS AT MS-1
108 f
I
0.1 t
4
vv
0.01 1
0.001
I
9S PERCENT
r
0.000 1
0.81
I
1
1
1
1
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8.1
i
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t
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s
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i
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FREQUENCY, CYCLES PER DAY
180
43
MS -
2
6L61 kHvnNVf 6Z a311d1SNI
M ,2'60 0L9
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1121'0N
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32JfSS38d 38fllV83dW31
titi
45
MS-2
Position:
60°19.4'S, 67°09.3'W
Depth of Water: 3100 m
Set at 1952 UCT 29 January '79 by R/V MELVILLE
Retrieved at 0504 UCT 21 January '79 by R/V ATLANTIS II
Data Interval:
2011 UCT 29 January '79 to 0602 UCT 21 January '80
Instrumentation
Intended Depth
500 m
1200 m
2500 m
RCM5 Serial No./Tape No.
1239/12
1537/16
3480/6
Instrument 1239 recorded speed, direction, temperature, and pressure
once per hour until the instrument was recovered.
Instrument 1537 recorded speed, direction, temperature, and pressure
once per hour until the instrument was recovered.
Instrument 3480 recorded speed, direction, and temperature once per
hour until the instrument was recovered.
46
MS-2
800 m
MEAN
S.D.
SKEW
KURT
MIN
MAX
N
S
10.14
4.98
0.51
2.99
0.70
32.10
8555
U
0.19
6.92
-0.14
2.73
-26.50
22.20
8555
V
5.72
6.84
-0.31
3.65
-20.60
30.30
8555
T
2.21
0.07
-0.23
2.99
1.97
2.39
8555
P
803.93
6.09
2.80
14.30
798.80
852.90
8555
1485 m
S
5.57
3.39
0.50
2.80
0.80
18.40
8557
U
-0.75
3.81
-0.04
3.44
-16.60
13.90
8557
V
3.51
3.89
-0.05
4.22
-17.10
17.80
8557
T
1.84
0.07
-0.00
2.51
1.66
2.04
8557
P
1493.37
4.36
3.15
16.17
1488.60
1528.10
8557
2785 m
S
4.74
2.55
0.75
4.04
0.80
18.70
8556
U
-1.08
3.39
0.24
3.25
-17.10
11.10
8556
V
2.11
3.45
0.16
3.66
-9.90
18.60
8556
T
0.93
0.07
0.20
2.26
0.76
1.12
8556
Speed, u, and v are given in cm/sec; temperature in degrees centigrade; pressure
in decibars; and conductivity in mmhr/cm.
47
T 1800
1-300
800 M AT STN MS-2.
356.4 DAYS STARTING 2020 29 JAN 79.
48
T 1225
-350
-175
175
1-175
1485 M AT STN MS-2.
356.5 DAYS STARTING 2018 29 JAN 79.
49
t 700
100
1 -100
2285 M AT STN MS-2.
356.5 DAYS STARTING 2011 29 JAN 79.
30.00 r
20.00 +
-20.00 +
-30.00 1
800 METERS AT MS-20
LLP FILTERED UCOMPONENT
20 T
10 +
1485 METERS AT MS-2
LLP FILTERED U COMPONENT
10
0
-10
2785 METERS AT MS-2
LLP FILTERED U'COMPONENT
30.00 T
20.00 +
10.00 t
JAN
FEB
M¢1R
APR
MAY
JUN
JUL
AUG
-10.00 t
-20.00 t
-30.00 1
800 METERS AT MS-20
LLP FILTERED V COMPONENT
SEP
OCT
NOV
DEC
JAN
FEB
MAR
FEB
JAN
EC
NOV
'COMPONENT V FILTERED LLP
MS-2 AT METERS 1485
-101
OCT
SEP
AUG
JUL
JUN
MAY
APR
JAN
U
1
w
C-)
20
s
10
+
COMPONENT V FILTERED LLP
MS-2 AT METERS 2785
-10
0
10
30.00
IN OR I H
1
20.00 +
10.00 +
U
En
0.00
U
-10.00 +
-20.00 +
-30.00 a
+
+
JAN
FEB
i
i
MAR
APR
MAY
i+
JUN
i
JUL
800 METERS AT MS-20
LLP FILTERED CURRENT
i
+
AUG
SEP
OCT
NOV
DEC
fi
JAN
FEB
dVN
833
Ndf 334 AON
100
dJS
1Nddfl
adI1IJ d-li
Z-SW Id SdIIW S8t
end
lnr
Nnr
AVW
ddV
JVW
83.E
Ndf
0l-
+ 0l
H1d)ON
1 Oz
I
NORTH
10
C-)
-10
JAN
FEB
MAR
APR
MAY
JUN
JUL
2785 METERS AT MS-2
LLP FILTERED CURRENT
AUG
SEP
OCT
NOV
DEC
JAN
FEB
2.50 r
f
U
ni
W
W
0n
I.
A
W
0
I
YI
I
l
h
I
0
U
W
Y
2.00
JAN
+
i
FEB
I
1
MAR
APR
JUN
I
i
F
1
MAY
JUL
AUG
800 METERS AT MS--2.
LLP FILTERED TEMPERATURE
i
a
SEP
OCT
E
NOV
:
I
DEC
JAN
FEB
Ln
1°
2.00
1.95
1.90
U)
1.85
CD
1.80
w
w
w
a
1.75
1.70
1.65
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
1485 METERS AT MS-2
LLP FILTERED TEMPERATURE
NOV
DEC
JAN
FEB
MAR
1.10
1.05
1.00
U
w
w
c
CD
0.95
0.90
w
0
0.85
0.80
0.75
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
2785 METERS AT MS-2
LLP FILTERED TEMPERATURE
OCT
NOV
DEC
JAN
FEB
850.00 T
I
Ir
W
W 800.00
750.00
FEB
MAR
+
i
i
F
JAN
APR
MAY
JUN
JUL
800 METERS AT MS-2o
LLP FILTERED PRESSURE
i
AUG
f
i
F
SEP
OCT
NOV
DEC
JAN
FEB
;
1510
1505
1500
U)
cj
w
H
w
1495
z
1490
T
1485
1480
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
1485 METERS AT MS-2
LLP FILTERED PRESSURE
SEP
OCT
NOV
DEC
JAN
FEB
MAR
UNFILTERED CURRENT.
800 METERS AT MS-2.
1000
.01
}
-3
t
-2.5
-2
-1.5
I
r-
I
-1
-.5
r
0
.5
1
FREQUENCY, CYCLES PER DAY
1.5
2
2.5
3
UNFILTERED CURRENT.
1485 METERS AT MS-2
100 1
0.01 a
-3
4
-2.5
-2
-1.5
-1
-0.5
0
0.5
1
FREQUENCY, CYCLES PER DAY
1.5
2
2.5
3
UNFILTERED CURRENT.
100
278S METERS AT MS-2
I
0.01
q
-3
-2.5
-2
-1.5
-1
-0.5
0
0.5
1
FREQUENCY, CYCLES PER DAY
1.5
2
2.5
3
67
UNFILTERED CURRENT.
800 METERS AT MS-2.
1000
100
10
.01
95 PERCENT
.001
.01
.1
1
10
FREQUENCY, CYCLES PER DAY
100
68
1485 METERS AT MS-2
UNFILTERED CURRENT.
0.01
I
I
9S PERCENT
0 .001
0.01
0.1
1
10
FREQUENCY, CYCLES PER DAY
100
69
UNFILTERED CURRENT.
2785 METERS AT MS-2
100
10 t
T
I-
H
1
z
Z
W
TT
W
0.1 t
0.01 t
95 PERCENT
0.001
0.01
0.1
1
18
FREQUENCY, CYCLES PER DAY
100
70
UNFILTERED TEMPERATURE.
800 METERS AT MS-2.
.01
.001
.0001
.00001
.000001
.0000001
.01
.1
1
10
FREQUENCY, CYCLES PER DAY
100
71
1485 METERS AT MS-2
UNFILTERED TEMPERATURE.
0.1 f
T
0.01 t
0.001
0.0001 f
I
0.00001 t
0.0000011
1
1
95 PERCENT
+ri H i l A *
0.0000001
0.01
0.1
m
i
i
a
FREQUENCY,
III!
1
I
I
I
a
II III
10
CYCLES PER DAY
100
72
UNFILTERED TEMPERATURE.
2785 METERS AT MS-2
0.1 x
0.01
0.001
0.0001
0.00081 t
0.0000o ft
95 PERCENT
0.0000001i
0.01
I
I
I
I I,;;;
0.1
I
Ii sTI I I
1
I
DTIII I I
10
FREQUENCY, CYCLES PER DAY
ITTri III
100
UNFILTERED PRESSURE.
.01
.1
1
800 M AT MS-2.
10
FREQUENCY, CYCLES PER DAY
i00
73
74
1485 METERS AT MS-2
UNFILTERED PRESSURE.
1000
100 t
18 #
r0
0.1
0.01 t
0.001
95 PERCENT
0.0001 m
0.01
i
I
0.1
1
22
1
10
FREQUENCY, CYCLES PER DAY
100
75
MS - 3
6L61 k8vnNv 6Z :0311VISNI
M,8'Q1o99
S,5'9Z 065
(SW) SOIISI1d1S/9NIddVIN
wQSt,2
IIII
.°N
3SV3-138 ousno3d F
W099
w0QQZ 4D ZizZl *ON
83131N iN3al:lfl3
Q
W 321
-wooZI 10 0291 '°N
H313Vi1 1N3aana
0
w 199
w oOS 4D ti 961 '°N
e1313W 1N38Hn0
Ell
w5Z
0
0
wISZ
W003 4D t7t *ON
38nsS38d 38nlVdl J31
w5Z
0
w5Z
hone olada
9L
77
MS-3
Position:
59°26.5'S, 66°15.8'W
Depth of Water: 3450 m
Set at 0441 UCT 29 January '79 by R/V MELVILLE
Retrieved at 0840 UCT 23 January '79 by R/V ATLANTIS II
Data Interval: 0713 UCT 29 January '79 to 0513 UCT 23 January '80
Instrumentation
Intended Depth
RCM5 Serial No./Tape No.
500 m
1200 m
2500 m
1964/14
1530/
1242/
Instrument 1964 recorded speed, direction, temperature, and pressure
once per hour until the instrument was recovered.
Instruments 1530 and 1242 were not recovered.
78
MS-3
645 m
MEAN
S.D.
SKEW
KURT
MIN
MAX
N
S
11.91
6.15
0.43
2.55
0.70
32.80
8615
U
6.88
7.18
0.02
3.22
-20.80
32.00
8615
V
3.19
8.40
0.22
2.95
-24.40
32.10
8616
T
2.33
0.08
0.13
3.62
2.04
2.63
8615
P
648.08
13.81
2.63
11.43
637.60
739.00
8615
Speed, u, and v are given in cm/sec; temperature in degrees centigrade; pressure
in decibars; and conductivity in mmhr/cm.
T 1200
800
400
400\
-400
4
800
1
1200
1600
-400
645 M AT STN M3-3.
358.9 DAYS STARTING 0713 29 JAN 79.
2000
2400
933
NVf
030
A ON
100
1NANOdNO3 f GAd-l1IA dll-l
F,-SW iv S?i JAW Sj79
T OZ-
f 01d3S
$nv
irat
Ntlr
AVIV
21d'1
21VW
83.E
NYP
f 01
+03
1 e£
30 T
20 }
(",Nh
MAY
A
f
JUL
AUG
SEP
-10 t
-20 1
645 METERS AT MS-3
LLP FILTERED V COMPONENT
T
NOV
DEC
AN
FEB
T NORTH
30 T
20 f
-20 ;
JAN
FEB
MAR
APR
MAY
JUN
JUL
645 METERS AT MS-3
LLP FILTERED CURRENT
AUG
SEP
OCT
NOV
DEC
JAN
FEB
93.E
Nyr
034
AON
100
lfl1Ve dNl
d3S
9nv
adl-1I dli
S-SW ld SJ
mflr
Nnr
AVW
21dd
L
JVW
N Stb9
93.E
NVP
I
l"Z
t Z'3
U
v
i
19.7-
93.d
NYC
034
AON
130
d3S
IdfSS Jd dAelil-lI1 d-l-l
env
S-SW iv S?i IIW SV9
in NfC AVW
ddV
2JYW
833
NYC
0z9
+ e,9
099
rn
m
089
+ OOL
1O L
UNFILTERED CURRENT.
645 METERS AT MS-3
1000 z
0.1
4
-3
-2.5
-2
-1.5
-0.5
0
4
0.5
FREQUENCY, CYCLES PER DAY
1.5
2
2.5
3
86
UNFILTERED CURRENT.
645 METERS AT MS-3
1008 T.
0.01 t
95 PERCENT
r
0.00I
0.01
0.1
1
18
FREQUENCY, CYCLES PER DAY
188
87
UNFILTERED TEMPERATURE.
645 METERS AT MS-3
0.01
0.001
0.0001
0.00001
0.000001
l
1
95 PERCENT
0.0000001
0.01
0.1
1
10
FREQUENCY, CYCLES PER DAY
100
UNFILTERED PRESSURE..
645 METERS AT MS-3
88
10008
I
1000 $
t
lee t
10
0.1
1
Vv
f
0.01 t
0.001
95 PERCENT
0.0001
0.01
0'.1
1
10
FREQUENCY, CYCLES PER DAY
100
89
MS -
4
6L61 AdVf1Nd(' 83 ; a311VISNI
M ,6.6t7 059
S ,6'99 065
tp (SW) S3I1SIid1S /9N IddVW
w0092
11101 'ON
3Stl3132! oIlSflOoV
w000i
w005Z 4o ZIn °N
8313W 1N388no
ED
WOO
w00Zi 40 £09 °N
8313W iN388no
IF
W 199
w5Z
wZSZ
w00Z 4o t'8 '°N
38f1SS3&i 323f iVb J3dIN31
0
w 5Z
8
AOn8
0lava
06
91
MS-4
Position:
59°56.9'S, 65°49.9'W
Depth of Water:
3600 m
Set at 2308 UCT 28 January '79 by R/V MELVILLE
Retrieved at 1140 UCT 22 January '80 by R/V ATLANTIS II
Data Interval: 0110 UCT 29 January '79 to 1119 UCT 22 January '80
Instrumentation
Intended Depth
RCM5 Serial No./Tape No.
500 m
1200 m
2500 m
1538/11
503/46
3123/11
Instrument 1538 recorded speed, direction, temperature, and pressure
once per hour. Processed speed, U, and V have been set to zero from
0819 6 JUN '79 to 1919 14 OCT '79 due to a rotor counter malfunction.
Pressure went off scale (1023) as soon as the mooring was installed
and remained so until recovery.
The nominal depth of 500 meters was
used for labeling listings and plots. The actual depth as determined
from hydro data was about 1072 meters.
Instrument 503
failed.
Instrument 3123 recorded speed, direction, and temperature once per
The nominal depth of 2500
hour until the instrument was recovered.
meters was used for labeling listings and plots. The actual depth
as determined by temperature comparison with hydro data was about
2975 meters.
92
MS-4
500 m
MEAN
S.D.
S
7.06
4.52
0.77
3.91
0.80
29.90
5399
U
2.10
5.35
0.26
3.59
-20.70
23.10
5399
V
3.60
4.93
0.37
3.55
-12.20
27.80
5399
T
1.96
0.08
0.29
2.41
1.77
2.19
8603
SKEW
KURT
MIN
MAX
N
2500 m
S
5.19
2.85
0.65
3.39
0.80
19.00
8603
U
0.49
2.69
-0.04
3.18
-9.30
11.10
8603
V
3.44
3.96
-0.18
3.35
-13.90
18.20
8603
T
0.72
0.05
0.34
2.99
0.58
0.91
8603
Speed, u, and v are given in cm/sec; temperature in degrees centigrade; pressure
in decibars; and conductivity in mmhr/cm.
T 300
200
100
-100
1-/00/00
500 M AT STN MS-4.
200
300
400
128.3 DAYS STARTING 0119 29 JAN 79.
500
600
94
T 560
-160
-80
.L -80
500 M AT STN MS-4.
96.6 DAYS STARTING 2019 17 OCT 79.
95
T 1225
-175
175
1-175
2500 lvl AT STN MS-4.
358.4 DAYS STARTING 0110 29 JAN 79.
20T
10 f
C)
w
U
0
JAN
FEB
MAR]
APR
MAY
JUN
JUL
AUG
SEP
OCT('UIM V*, PE
-10 1
SOB METERS AT MS4
LLP FILTERED U'COMPONENT
«tM
FEB
MAR
20 T
10 +
2500 METERS AT MS4
LIP FILTERED U COMPONENT
20 T
10 +
C)
U
C)
AY
JUN
JUL
AUG
SEP
OCT
-10 1
500 METERS AT MS4
LLP FILTERED V'COMPONENT
NOV
DEC
JAN
FEB
MAR
20 T
W%
OCT
7'J
v
2S00 METERS AT MS4
LLP FILTERED V COMPONENT
NO
DEC
JAN
FEB
MAR
NORTH
20 T
10 +
I!1
0
-to
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
500 METERS AT MS4
LLP FILTERED CURRENT
SEP
OCT
NOV
DEC
JAN
FEB
MAR
NORTH
20 T
10 +
U
w
U
0
-to
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
2500 METERS AT MS4
LLP FILTERED CURRENT
SEP
OCT
NOV
DEC
JAN
FEB
MAR
2.2
2.1
c
ILI
w
CD
w
1
84
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
SB® METERS AT MS4
LLP FILTERED TEMPERATURE
NOV
DEC
JAN
FEB
MAR
0.8s
0.80
I?
v
0.65
0.60
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
2500 METERS AT MS4
LLP FILTERED TEMPERATURE
NOV
DEC
JAN
FEB
MAR
UNFILTERED CURRENT.
500 METERS AT MS-4
0.01
-3
-2.5
-2
-1.5
-1
-0.5
0
0.5
1
FREQUENCY, CYCLES PER DAY
1.5
2
2.5
3
UNFILTERED CURRENT.
2500 METERS AT MS-4
100 z
I
10.01
-3
-2.S
-2
-1.5
-1
-0.5
0
0.5
1
FREQUENCY, CYCLES PER DAY
1.5
2
2.5
30
105
UNFILTERED CURRENT.
0.01
500 METERS AT MS-4
i
1
95 PERCENT
0.001
0.81
0.1
1
18
FREQUENCY, CYCLES PER DAY
100
107
UNFILTERED CURRENT.
2500 METERS AT MS-4
100
0.01 f
9S PERCENT
0.001
0.01
ttt++t+i i
0.1
t
I
I HTt
FtT I
1
i-t+t#t
10
FREQUENCY, CYCLES PER DAY
i
i
2
i IIIII
100
108
500 METERS AT MS-4
UNFILTERED TEMPERATURE.
0.1 x
0.01
0.001
0.00001
0.0000011
I
I
9S PERCENT
0.0000001
0.01
8.1
1
10
FREQUENCY, CYCLES PER DAY
100
109
UNFILTERED TEMPERATURE.
2500 METERS AT MS-4
0.01
0.001
'0.0001
0.00001
0.000001
95 PERCENT
0.80008014
0.21
1
14 i 41
0.i
'I
1
1
1& 1.1,1I1
10
=FREQUENCY,.. - CYCLES PER DAY
I
III
I I f!
100
110
111
MS -
5
112
u RADIO BUOY
25m
25m
TEMPERATURE PRESSURE
No. 43 at 200m
252m
25m
CURRENT METER
No.755 at 500m
651m
a
CURRENT METER
No. 1536 at 1200m
1210 m
MAPPING / STATISTICS (MS) 5
58041.5 S
65° 46.8'W
INSTALLED 28 JANUARY 1979
METER
H CURRENT
No. 501 at 2500m
1
800m
o
CURRENT METER
No. 463
400 m
DIGITAL ACOUSTIC RELEASE
0 No. 802664
_3780m,
113
MS-5
58°41.5S, 65°46.8'W
Position:
Depth of Water:
3780 m
Set at 0628 UCT 28 January "79 by R/V MELVILLE
Retrieved at 0913 UCT 20 February '80 by R/V ATLANTIS II
Data Interval: 0804 UCT 28 January '79 to 0838 UCT 20 February '80
Instrumentation
Intended Depth
500 m
1200 m
2500 m
RCM5 Serial No./Tape No.
755/31
1536/13
501/48
Instrument 755 recorded speed, direction, temperature, and pressure
once per hour until the instrument was recovered.
Instrument 1536 recorded speed, direction, temperature, and pressure
once per hour until the instrument was recovered.
Instrument 501 recorded speed, direction, temperature, and pressure
once per hour until the instrument was recovered. The pressure sensor
failed in two sections of this record: 1014 28 JAN '79 to 2014 4 FEB
'79 and 0414 23FEB '79 to 1014 24'FEB '79.
114
MS-5
752 m
MEAN
S.D.
SKEW
KURT
MIN
MAX
N
S
13.48
7.19
0.27
2.37
0.70
34.80
9312
U
7.23
8.96
-0.00
2.53
-23.50
31.30
9312
V
0.58
10.02
-0.16
2.94
-32.70
30.80
9312
T
2.40
0.18
0.82
2.93
2.09
2.98
9312
P
755.74
35.99
1.96
7.38
725.70
962.60
9312
1460 m
S
8.37
4.18
0.62
3.31
0.80
26.80
9313
U
5.27
5.57
-0.03
3.04
-16.40
26.80
9313
V
-1.02
5.25
-0.05
3.20
-24.70
17.30
9313
T
2.01
0.13
0.12
2.08
1.70
2.30
9313
P
1468.02
31.57
2.01
7.78
1442.00
1655.10
9313
2752 m
S
11.90
6.72
0.45
2.63
0.70
37.70
9311
U
6.68
5.78
0.18
2.77
-16.50
28.40
9311
V
-8.36
.6.22
-0.44
2.83
-30.00
8.30
9311
T
1.10
0.15
0.53
2.43
0.79
1.59
9311
P
2766.47
17.20
1.62
5.27
2750.60
2856.30
9829
Speed, u, and v are given in cm/sec; temperature in degrees centigrade; pressure
in decibars; and conductivity in mmhr/cm.
752 M AT $TN M8-5.
388 DAYS STARTING 928 28 JAN 79.
t 350
-350
350
1
700
1050
1400
-350
-700
1460 M AT STN MS-5.
388.0 DAYS STARTING 0804 28 JAN 79.
1750
2100
117
T 450
I
-450
450
900
1350
1800
-450
+-900
-1350
-1800
-2250
t -2700
1 -3150
2752 M AT STN MS-5.
387.9 DAYS STARTING 1014 28 JAN 79.
2250
30.00 r
'-
NOV
-10.00 +
-20.00 +
-30.00 1
752 METERS AT MS--5.
LLP FILTERED U COMPONENT
DEC
JAN
FEB
20
-10
-20 1
1460 METERS AT MS-S
LLP FILTERED U COMPONENT
30.00 r
20.00 +
i0.00 +
JAN
FEB
MAR
Y
JUN
JUL
AUG
-10.00 +
-20.00 +
-30.00 1
2752 METERS AT MS-5o
LLP FILTERED U COMPONENT
SEP
OCT
NOV
DEC
JAN
FEB
30.00 r
20,00 +
10.00 +
APR
MAYAI
JIAV
f .PJL
AUG
-10.00 +
-20.00 +
-30.00 1
752 METERS AT MS-5e
LLP -FILTERED V COMPONENT
SEPf 1 OCT .AN NOC/
DEC
20 T
-20 1
1460 METERS AT MS-5
LLP FILTERED V COMPONENT
30.00 T
2-0.00 t
10.00 t
-30.00 1
2752 METERS AT MS-5o
LLP FILTERED V COMPONENT
30.00 r
NORTH
20.00 +
10.00 +
U
W
to
0.00
-10.00 t
-20.00 +
-30.00
f
JAN
FEB
i
i
MAR
APR
i
MAY
i
JUN
i
i
JUL
752 METERS AT MS-5o
LLP FILTERED CURRENT
AUG
i
SEP
OCT
NOV
DEC
JAN
FEB
NORTH
20 T
10 +
0
-10 +
-20
1
JAN
FEB
MAR
APR
MAY
JUN
JUL
1460 METERS AT MS-S
LLP FILTERED CURRENT
AUG
SEP
OCT
NOV
DEC
JAN
FEB
30.00 -r
NORTH
20.00 +
10.00 +
C)
in
0.00
-10.00 +
-20.00 +
-30.00
JAN
FEB
MAR
APR
MAY
JUN
JUL
2752 METERS AT MS-5.
LLP FILTERED CURRENT
AUG
SEP
OCT
NOV
DEC
JAN
FEB
3.00 T
0
2.00x
`
JAN
FEB
}
F
MAR
APR
MAY
JUN
JUL
AUG
752 METERS AT MS-5.
LLP FILTERED TEMPERATURE
}
{
SEP
OCT
NOV
DEC
JAN
FEB
9-Id
Ndr
03a
AON
100
idnidd:AdNal aAdiI1IJ dll-f
S-SW ld SdIIIW 09-b
d3S
Ony
inr
Nnr
AVW
ddV
dYW
93d
Ndf
L'I
+6'1
+ 0'z
1 £'
2.00T
1.50 t
1.00 t
.50i
I
I
JAN
FEB
I
MAR
APR
MAY
JUN
I-
I
JUL
I
AUG
2752 METERS AT MS-5o
LLP FILTERED TEMPERATURE
I
I
SEP
OCT
NOV
I
DEC
I
JAN
FEB
i
900.00 T
850.00 +
A
U)
W
800.00
I
I
750.00 +
700.00 +
i
JAN
FEB
+
F
MAR
APR
MAY
f-
+
JUN
JUL
752 METERS AT MS-5o
LLP FILTERED PRESSURE
AUG
i
SEP
t-
i
OCT
NOV
DEC
i
JAN
i
FEB
1600
1550
L
N
1450
1400 a
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
1460 METERS AT MS-5
LLP FILTERED PRESSURE
SEP
OCT
NOV
DEC
JAN
FEB
2(350.00 T
2800.00 +
2750.00 t
2700.00
t
JAN
FEB
MAR
APR
i
i
MAY
JUN
JUL
2752 METERS AT MS-5.
LLP FILTERED PRESSURE
AUG
I
i
0
SEP
OCT
NOV
DEC
f
a
JAN
FEB
UNFILTERED CURRENT.
752 METERS AT MS-5.
--!
.1
-3
-2.5
-2
-1.5
-1
-.5
0
!
!
.5
1
FREQUENCY, CYCLES PER DAY
1.5
2
2.5
3
UNFILTERED CURRENT.
1460 METERS AT MS-S
1000 1
0.01 a
-3
q
-2.5
-2
-1.5
-1
-0.5
0
0.5
1
FREQUENCY, CYCLES PER DAY
1.5
2
2.5
3
UNFILTERED CURRENT.
2752 METERS AT M5-5.
FREQUENCY, CYCLES PER DAY
136
UNFILTERED CURRENT.
.01
.1
I
752 METERS AT MS-5.
10
FREQUENCY, CYCLES PER DAY
100
137
UNFILTERED CURRENT.
;1460 METERS AT MS-5
FREQUENCY, CYCLES PER DAY
138
UNFILTERED CURRENT.
.01
.1
I
2752 METERS AT MS-5.
10
FREQUENCY, CYCLES PER DAY
100
139
UNFILTERED TEMPERATURE.
752 METERS AT MS-5.
.00001
.000001
1
95 PERCENT
.0000001
.01
0
1
10
FREQUENCY, CYCLES PER DAY
i00
140
UNFILTERED TEMPERATURE.
0.1
1460 METERS AT MS-S
1
I
4
0.00001 t
T
0.000001]
9S PERCENT
r
0.0080001i
0.01
i
i
2
i i+1H
0.1
t
I
1
I
I
i 11111
t0
FREQUENCY, CYCLES PER DAY
I
I
I
I2 i i 11
100
141
UNFILTERED TEMPERATURE.
2752 METERS AT MS-5.
.0001
.00001
95 PERCENT
.000001
.01
.1
I
10
FREQUENCY, CYCLES PER DAY
100
142
UNFILTERED PRESSURE.
752 M AT MS-5.
10000
1000
Ii
100
10
95 PERCENT
.01
.1
1
10
FREQUENCY, CYCLES PER DAY
100
143
1468 METERS AT MS-5
UNFILTERED PRESSURE.
18888 1
z
t
t
I
0.1 t
0.01 t
95 PERCENT
0.001 1-- I
0.81
I
I His @!
0.1
a
B
h
I ;;;i
WH
1
10
FREQUENCY, CYCLES PER DAY
2
a
I ;;;; I
100
144
2752 METERS AT MS-S.
UNFILTERED PRESSURE.
1008 1
0.01 t
1
t
85 PERCENT
0.001 +
0.01
:( I 1 1 ill!
0.1
+ . .......
1
.
.
.......
18
FREQUENCY, CYCLES PER DAY
.
I
I
I .....
100
145
MS -
6
146
RADIO BUOY
25m
25m
TEMPERATURE PRESSURE
No. 47 at 200m
252m
8
25m
CURRENT METER
11TE No. 1531 at 500m
651 m
0
11
CURRENT METER
No.1540 at* 1200m
1210m
CURRENT METER
No. 3481 at 2500m
300M
ACOUSTIC RELEASE
LJ No. 319
2850m
MAPPING / STATISTICS (MS) 6
590 10.7' S
650 15.0'W
INSTALLED: 28 JANUARY 1979
147
MS-6
Position: 59°10.7S, 65°15.0'W
Depth of Water:
2850 m
Set at 1230 UCT 28 January '79 by R/V MELVILLE
Retrieved at 1704 UCT 28 January '80 by R/V ATLANTIS II
Data Interval: 1428 UCT 28 January '79 to 1828 UCT 24 January '80
Instrumentation
Intended Depth
RCM5 Serial No./Tape No.
500 m
1200 m
1531/10
2500 m
3481/6
1540/15
Instrument 1531 recorded speed, direction, temperature, and pressure
once per hour until the instrument was recovered. Large parts of the
pressure record are suspicious due to small rapid oscillations of the
bit count. Only the worst errors were corrected before filtering.
Instrument 1540 recorded speed, direction, temperature, and pressure
once per hour until the instrument was recovered.
Instrument 3481 recorded
once
speed, direction, temperature,
per hour until the instrument was recovered.
and pressure
148
MS-6
814 m
MEAN
S.D.
SKEW
KURT
MIN
MAX
N
S
13.60
6.23
0.28
2.61
0.80
34.30
8667
U
7.86
6.68
0.26
3.29
-21.70
31.00
8667
V
7.64
7.69
-0.27
2.66
-18.00
29.50
8667
T
2.26
0.13
-0.26
2.41
1.93
2.56
8667
P
818.45
22.77
2.23
8.58
799.60
965.20
8667
1409 m
S
9.38
4.47
0.54
3.21
0.80
30.10
8669
U
4.85
5.33
0.18
3.29
-18.50
25.80
8669
V
4.72
5.81
-0.25
3.24
-17.90
29.90
8669
T
1.91
0.16
-0.50
2.34
1.47
2.19
8669
P
1416.21
18.49
2.11
7.97
1397.80
1531.90
8669
2709 m
S
6.30
3.41
0.53
3.11
0.80
21.20
8666
U
1.49
3.96
-0.09
3.12
-12.50
17.90
8666
V
3.08
4.89
-0.20
3.05
-17.60
19.40
8666
T
0.99
0.16
0.03
2.23
0.67
1.38
8666
Speed, u, and v are given in cm/sec; temperature in degrees centigrade; pressure
in decibars; and conductivity in mmhr/cm.
149
-450
814 M PT SIN MS-6.
450
900
1350
1800
361.1 DAYS STARTING 1514 28 JRN 79.
2250
2700
150
T 1500
1200
900
600
300
-300
300
600
900
1200
1-300
1409 M AT STN MS-6.
361.2 DAYS STARTING 1428 28 JAN 79.
1500
180
151
T 1050
-150
150
300
450
600
1-150
2209 M AT STN MS-6.
361.0 DAYS STARTING 1432 28 JAN 79.
30.00 T
-10.00 +
-20.00 +
-30.00 1
814 METERS AT MS-6o
LLP FILTERED U COMPONENT
20.00 T
-20.00 1
1409 METERS AT MS-6o
LLP FILTERED U COMPONENT
20 T
10 t
MAY" JUN11 JUt
AUG
SEP
-10 1
2709 METERS AT MS-6
LLP FILTERED UCOMPONENT
OCT VNOV
DEC
JAN
FEB
30.00 T
20.00 +
10.00 +
p
Cl)
0.00
JUl 1
WPL
AUG
U
-10.00 +
-20.00 +
-30.00 1
814 METERS AT MS-S.
LLP FILTERED V COMPONENT
SEP
OCT-
NOV
DEC
JAN
FEB
20.00 T
-10.00
-20.00
1409 METERS AT MS-6o
LLP FILTERED V COMPONENT
20 T
2709 METERS AT MS-6
LLP FILTERED V COMPONENT
30.00 r
INORTH
20.00 +
10.00 +
U
U)
0.00
U
-10.00 +
-20.00 +
-30.00
JAN
FEB
MAR
APR
MAY
JUN
JUL
814 METERS AT MS-60
LLP FILTERED CURRENT
AUG
SEP
OCT
NOV
DEC
JAN
FEB
20.00 T
10.00
U
ar
0.00
U
-10.00 t
-20.00
r
JAN
FEB
MAR
I
I
F
APR
MAY
JUN
JUL
1409 METERS AT MS-6o
LLP FILTERED CURRENT
AUG
t
t
E
SEP
OCT
NOV
DEC
1
JAN
FEB
T NORTH
20 T
10 +
0
-10
JAN
FEB
MAR
APR
MAY
JUN
JUL
2709 METERS AT MS-6
LLP FILTERED CURRENT
AUG
SEP
OCT
NOV
DEC
JAN
FEB
3.00 r
2.501
N
w
w
C9
w
0
2.00+
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
814 METERS AT MS-B.
LLP FILTERED TEMPERATURE
SEP
OCT
NOV
DEC
JAN
FEB
2.50 T
1.50
F
JAN
i
+
FEB
MAR
APR
MAY
i
JUN
t
i
JUL
AUG
1409 METERS AT MS-B.
LLP FILTERED TEMPERATURE
SEP
OCT
NOV
DEC
JAN
FEB
1.4
1 .3
1 .2
U
1.1
W
W
1.0
0w
0
0.9
ce
0.8
0.7
0.6
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
2709 METERS AT MS-6
LLP FILTERED TEMPERATURE
OCT
NOV
DEC
JAN
FEB
900.00 T
N
850.00 +
1
1
U)
w
w
7-
800.00 +
750.00
JAN
FEB
MAR
APR
MAY
JUN
JUL
814 METERS AT MS-60
LLP FILTERED PRESSURE
AUG
SEP
OCT
NOV
DEC
JAN
FEB
1500.00
1450.00
1
c
w
1w
I
1350.00
kwj'L-,
V
1400.00
1
JAN
FEB
i
i
MAR
APR
iF
MAY
JUN
JUL
1409 METERS AT MS-6o
LLP FILTERED PRESSURE
i
E
AUG
SEP
i
OCT
i
i
NOV
DEC
JAN
i
FEB
UNFILTERED CURRENT.
814 METERS AT MS-6.
1000
100
10
I
.1
-3
-2.5
-2
-1.5
-1
-.5
.5
FREQUENCY, CYCLES PER DAY
1.5
2
2.5
3
UNFILTERED CURRENT.
1409 METERS AT MS-6.
1000
100
10
i
.1
.01
-3
-2.5
-2
-1.5
-1
-.5
0
.5
1
FREQUENCY, CYCLES PER DAY
1.5
2
2.5
UNFILTERED CURRENT.
2709 METERS AT MS-6
1000
100
0.01 +
-3
a
i
-2.5
-2
F
-1.5
i
-1
F
-0.5
i
+
i
I
0
0.5
l
1.5
FREQUENCY, CYCLES PER DAY
F
2
I
2.5
3
169
814 METERS AT MS-6.
UNFILTERED CURRENT.
1000
x
s
100
10 }
I
>-
I-
M
in
zw
0
1}
w
95 PERCENT
.001
.01
.1
I
10
FREQUENCY, CYCLES PER DAY
100
170
UNFILTERED CURRENT.
.01
.1
I
1409 METERS AT MS-6.
10
FREQUENCY$ CYCLES PER DAY
100
171
2709 METERS AT MS-6
UNFILTERED CURRENT.
100 1
0.01
I
95 PERCENT
0.001 TAT
0.01
is Sol!
0.1
Ta
i
a
1
A
1
11111-
10
FREQUENCY, CYCLES PER DAY
+++++111
100
172
UNFILTERED TEMPERATURE.
814. METERS AT MS-6.
.01
.001
.0001
.00001
.000001
.0000001
.01
.1
10
FREQUENCY, CYCLES PER DAY
100
173
UNFILTERED TEMPERATURE.
1409 METERS AT MS-6.
11
.01
.001
.0001
.00001
.000001
.01
.1
I
10
FREQUENCY, CYCLES PER DAY
100
174
UNFILTERED TEMPERATURE.
2709 METERS AT MS-6
0.1 a
0.01
0.001
0.0001 t
0.00001 t
0.0000011
t
95 PERCENT
0.0000001 +t + i6IT;6
0.01
0.1
1
10
FREQUENCY, CYCLES PER DAY
100
175
UNFILTERED PRESSURE.
.01
.1
I
814 M AT MS-6.
10
FREQUENCY, CYCLES PER DAY
100
UNFILTERED PRESSURE.
1409 M AT MS-6.
176
.01
.1
I
10
FREQUENCY, CYCLES PER DAY
i00
177
MS-7
178
A[
RADIO
BUOY
25m
0
0 TEMPERATURE PRESSURE
No.22 at 200m
T252m
0
8
25m
CURRENT METER
PTO No.1542 at 500 m
651 m
0
11
CURRENT. METER
No. 2276 at 1200m
1210M
CURRENT METER
No. 3125 at 2500m
1075 m
ACOUSTIC RELEASE
No. 4311
3630m
MAPPING / STATISTICS (MS) 7
590 38.8'S
64° 40.5' W
INSTALLED- 28 JANUARY 1979
179
MS-7
Position:
59°38.8S, 64°40.5W
Depth of Water:
3630 m
Set at 1740 UCT 28 January '79 by R/V MELVILLE
Retrieved at 0722 UCT 24 January '80 by R/V ATLANTIS II
Data Interval: 1937 UCT 28 January '79 to 1004 UCT 24 January '80
Instrumentation
Intended Depth
RCM5 Serial No./Tape No.
500 m
1200 m
2500 m
1542/11
2276/11
3125/13
Instrument 1542 recorded speed, direction, temperature, and pressure
once per hour unti i the instrument was recovered.
Instrument 2276 recorded speed, direction, temperature, pressure
and conductivity once per hour until the instrument was recovered.
A portion of the speed record (1104 UCT 16 APR to 0704 UCT 25 APR '79)
was bridged due to instrument malfunction.
Instrument 3125 recorded speed,
hour until
direction,
2337 UCT 5 November '79.
and temperature once per
180
MS-7
540 m
MEAN
S.D.
SKEW
KURT
MIN
MAX
N
S
14.43
7.42
0.42
2.35
0.80
38.90
8653
U
7.59
8.51
0.25
2.73
-21.60
35.80
8563
V
9.48
6.58
0.08
3.01
-12.70
31.90
8653
T
2.12
0.12
0.88
2.80
1.81
2.45
8653
P
543.09
38.08
1.64
5.40
511.00
738.90
8653
1224 m
S
9.21
4.67
0.41
2.54
0.80
24.40
8655
U
4.86
5.62
-0.03
2.80
-14.90
23.60
8655
V
5.83
4.17
0.37
3.22
-6.40
21.70
8655
T
1.77
0.13
0.65
2.31
1.52
2.13
8655
P
1230.14
31.76
1.77
5.78
1205.90
13.92.90
8655
C
31.01
0.11
0.41
1.90
30.82
31.28
8655
2524 m
S
5.21
3.77
0.65
2.86
0.80
20.40
6749
U
3.38
.4.09
0.37
3.13
-11.00
18.20
6749
V
2.17
2.92
0.18
4.28
-10.10
15.40
6749
T
0.90
0.11
0.22
2.16
0.55
1.16
6749
Speed, u, and v are given in cm/sec; temperature in degrees centigrade; pressure
in decibars; and conductivity in mmhr/cm.
181
T 3150
2700
-450
450
900
1350
1800
1-450
540 M AT STN MS-7.
360.5 DAYS STARTING 2120 28 JAN 79.
2250
2700
182
T2100
-300
300
600
900
1200
-L -300
1224 M AT STN MS-7.
360.6 DAYS STARTING 2004 28 JAN 79.
1500
1800
T 700
y -175
2524 M AT STN M3-7.
281.2 DAYS STARTING 1937 28 JAN 79.
933
N`dr .
T301
AON
130
ININOdW03 n a-eIII-lI d-l-l
L-SW Id SdLIIW Pt7S
T 0Z-
f01d3S
Jnd
_
mnr
Nnr
AVW
Jdb
w
81W
833
Ndr
I 0
+ 01
1
+ Oz
v
les
20 T
10 f
0
JAN
FEB
1224 METERS AT MS-7
LLP FILTERED U COMPONENT
933
N VP 034 AON
00
IN-NOdW00 .f1 GII eL 1-1IJ d-1-1
L-SW Id SeIILIW t7ZSZ
T 01-
d3S
nv
-inf`
Nn r
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540 METERS AT MS-7
LLP FILTERED V COMPONENT
OCT
NOV
JAN
FEB
20 T
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JAN
FEB
MAR
APR
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JUN
JUL
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1224 METERS AT MS-7
LLP FILTERED VCOMPONENT
OCT
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JAN
FEB
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2524 METERS AT MS-7
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T NORTH
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r
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r
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DEC
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OCT
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JAN
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2.5 T
2.4 f
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JAN
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OCT
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83.E
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1224 METERS AT MS-7.
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2524 METERS AT MS-7
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202
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540 METERS AT MS-7.
P1
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100
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UNFILTERED CURRENT.
1224 METERS AT MS-7.
100
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100
204
UNFILTERED CURRENT.
2524 METERS AT MS-7
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2524 METERS AT MS-7
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100
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100
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FREQUENCY, CYCLES PER DAY
100
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UNFILTERED CONDUCTIVITY.
1224 METERS AT MS-7.
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188
211
APPENDIX
212
The depths of the instruments that
previous FDRAKE
the earlier
were used in
experiments were assigned
in two ways.
experiments none of the meters were
with pressure
sensors, and
equipped
the depth was assigned. using the
best estimate of the bottom depth and the mooring component
lengths.
In later experiments the addition of pressure
sensors to some of the meters allowed the depths to be based
on pressure data.
At no time in the series of experiments,
including DRAKE 79 were all of the meters equipped with
pressure
sensors.
In the present report almost all of the instrument
depths are based either directly or indirectly on pressure
data.
Some of the current meters contained on-board
pressure sensors which allowed direct estimation of
instrument depth.
The depths of other meters were estimated
by extrapolating upward or downward from
elsewhere on the mooring.
pressure sensors
The depths given here are average
depths obtained by averaging over the record length, and
reflect depth variations caused by mooring blow-over.
Depth was calculated from pressure using the formula:
z(m) = 0.99481 p (decibars)
which assumes an ocean of constant density equal to 1.025 g
cm3.
It has been pointed out that this shallow-water
formula overestimates
depth in the deep ocean.
A better
estimate is given by using a formula obtained from Professor
213
J. L. Reid at
Scripps
(T. Whitworth,
personal
communication):
z(m) = (0.992446)P - (2.28717x10-6)P2 + (2.08213x10-11)P3
It is based on a world ocean average density profile.
Investigators at Texas A & M noted discrepancies between the
depths calculated with our simple formula and those obtained
from T/P recorders on the same moorings. The following
table summarizes the findings of TAMU (W. D. Nowlin, Jr. and
T. Whitworth, III, personal communication) and is our best
estimate of the actual meter depths.
calculated using Reid's formula.
These depths are
Employing actual density
data obtained in the Drake Passage rather than Reid's
formula makes a meter or two change from these depths.
214
Mooring
Instrument
Design
Pressure
depth
minimum
Depth
minimum
Difference
meters
meters
decihars
200
500
245
550
243
545
43
45
200
500
2500
3200
3665
327
598
2678
324
592
2641
124
200
500
2500
3700
187
478
2574
186
474
2540
-14
-26
40
T/P
200
CM
2500
3780
323
2635
320
2600
120
100
389
688
386
682
186
182
meters
---------------------------------------------------------------------ML-8
T/P
CM
ML-9
T/P
CM
CM
GEODYNE
ANCHOR
ML-10
T/P
CM
CM
ANCHOR
ML-11
ANCHOR
ST
T/P
CM
T/P
800
987
977
177
T/P
1200
1600
1403
1807
1388
1786
188
186
T/P
CM
ANCHOR
2000
2500
3070
2714
2677
177
T/P
200
203
201
CM
500
508
504
4
ANCHOR
995
T/P
CM
200
500
375
685
CM
1200
1386
372
679
1371
CM
2500
2697
2660
172
179
171
160
CM
SS-1000
MS-1
ANCHOR
MS-2
MS-3
200
500
92
141
3610
T/P
200
498
494
CM
CM
CM
798
1489
2697
791
1371
2660
160
ANCHOR
500
1200
2500
3000
T/P
200
329
326
126
CM
500
3450
638
632
132
ANCHOR
294
291
171
215
Mooring
Instrument
Design
Pressure
depth
meters
minimum
decibars
Depth
minimum
meters
Difference
meters
---------------------------------------------------------------------MS-5
T/P
200
500
1200
2500
3300
3780
423
727
1444
2750
419
720
1428
2712
219
220
228
212
CM
CM
200
500
1200
408
801
1401
405
793
1386
205
293
186
CM
ANCHOR
2500
2580
T/P
CM
CM
CM
200
500
1200
2500
3630
205
513
1206
203
509
1194
3
CM
CM
CM
GEODYNE
ANCHOR
MS-6
MS-7
T/P
ANCHOR
9
-6
Mooring
Instrument
Design
Difference
meters
Pressure
minimum
decibars
Depth
minimum
meters
200
500
578
197
532
195
527
-5
200
350
500
1000
223
370
527
221
366
522
21
16
22
200
500
800
900
261
597
910
997
1328
1635
1885
259
591
901
987
1313
1616
59
91
1862
113
116
112
2641
2605
105
184
183
-17
2557
2523
23
200
500
2500
3680
278
571
2568
275
565
2534
75
65
34
200
500
1200
3630
303
613
1323
300
607
1309
100
107
109
200
500
1200
2500
3835
327
625
1338
2664
324
619
1324
2628
124
119
124
128
200
500
1200
194
507
1234
192
503
-8
1221
2542
21
42
depth
meters
---------------------------------------------------------------------NS500
T/P
CM
ANCHOR
NS1000
T/P
T/P
CM
ANCHOR
NT
T/P
CM
CM
T/P
T/P
T/P
1200
1500
1750
2000
CM
2500
ANCHOR
?
T/P
200
500
2500
3830
CM
CM
ML-1
CM
CM
ANCHOR
ML-2
T/P
CM
CM
ANCHOR
ML-5
T/P
CM
CM
ANCHOR
ML-6
T/P
CM
CM
CM
ANCHOR
ML-7
T/P
CM
CM
CM
ANCHOR
2500
3815
2577
27
100
87
3