e Laboratory
Mani:
Oregon State University
School of
DE C 18 1975
OCEANOGRAPHY
//
A COMPILATION OF
OBSERVATIONS FROM MOORED
CURRENT METERS
OREGON STATE UNIVERSITY
Volume VIII Wind, Currents and
Temperature off Northwest Africa
along 21°40'N During JOINT-I
February-April 1974
by
R. D. Pillsbury
J. S. Bottero
R. E. Still
E. Mittelstaedt
National Science Foundation
Grant GX 33502
Data Report 62
Reference 74-20
December 1974
AR
Marine Science Laboratory
Oregon State University
School of Oceanography
Oregon State University
Corvallis, Oregon 97331
A COMPILATION
OF OBSERVATIONS
FROM MOORED CURRENT METERS
VOLUME VIII
WIND, CURRENTS AND TEMPERATURE
OFF NORTHWEST AFRICA ALONG 21°40'N
DURING JOINT-I
February - April 1974
by
R. D. Pillsbury
J. S. Bottero
R. E. Still
E. Mittelstaedt
Data Report 62
Reference 74-20
December 1974
National Science Foundation
Grant GX 33502
TABLE OF CONTENTS
Abstract
Introduction
1
The Current Meter Program
1
Description of Processed Data
3
Acknowledgements
7
References
8
Installations
Rhododendron I
11
Rhododendron II
20
Urbinia I
30
Urbinia II
43
Weed
56
Oregon Grape
70
Lupine
86
Forest Fern
102
Foxglove
121
ABSTRACT
Current meters, moored during JOINT-I in the coastal upwelling area
off Northwest Africa along 21°40'N measured current speed and direction,
temperature and, in some cases, conductivity and pressure. In addition,
surface buoy meterological stations were installed at some current meter
strings to record wind speed and direction, as well as air and water
temperature.
The sampling intervals of the instruments were 5 and 10 minutes. The
data have been filtered and are shown here by means of pertinent statistics,
real time plots, progressive vector diagrams and rotary spectra of hourly
values.
16°40'W
17° 00'
17°20'
17°40'
18° 00'
22° 20'
Roque Chico
. .
Roque ,
Grande
.
.
.
22°00
.
.-
• •
.
SPANISH
SAHARA
.
•
Cabo
Corveiro
(rOOm
000
FOXGLOVE
21°4 i )•
10
0
o
8
9
o
♦
7
FOREST
FERN
0
LUPINE
6
5
4
OREGON
GRAPE
•
URBINIA
1
WEED
10
7
8
9
• 0
RHODODENDRON
•
•
. ' .
F
4
3
2
.
I
• • . .
\,.._
4500m
\\
•
•
5
L-LINE
•
1
6
*
...
I
2
0
500 rn
21°2 j)
'
.•
H-LINE
.
\N\
.
.
21° 00' Al
Figure 1. Locations of the current meter moorings Foxglove, Forest Fern,
Lupine, Oregon Grape, Urbinia, Weed and Rhododendron during
JOINT-I (February - April 1974). Solid dots indicate current
meter moorings and open dots are hydrographic stations.
.
•
1
Introduction
During February - April 1974 an interdisciplinary experiment called
JOINT-I was conducted in the coastal upwelling area off Northwest Africa.
This experiment was part of the NSF International Decade of Ocean Exploration Coastal Upwelling Ecosystems Analysis Program (CUEA). The goal was
to understand the physical dynamics and biological implications of upwelling
phenomena.
Current meters and meteorological buoys were installed by Oregon
State University (OSU, Corvallis), the Deutsches Hydrographisches
Institut (DHI, Hamburg), and by the Pacific Marine Environmental Laboratory
of NOAA (PMEL, Seattle). This volume presents only the data from current
meters and meteorological buoys of OSU and DHI. A compilation of associated hydrographic data obtained by R/V GILLISS has been prepared by
D. Barton et al. (1975).
The Current Meter Program
The current meter strings were aligned normal to the coast of Spanish
Sahara along 21°40'N, extending from the inshore region seaward to a water
depth of 1200 meters (Fig. 1).
The current meter moorings were subsurface taut wire moorings. The
distribution of the instruments is shown in Fig. 2. Aanderaa current
meters were used. These sampled an averaged current speed and the instantaneous current direction at 10 minute intervals.
1
At the same time,
all meters recorded water temperature, and some measured conductivity
1
The records of Rhododendron 1 and Urbinia 1 are based on 5 minute
sampling intervals.
LONGITUDE
18°00' F
01 FF 40'
MIL 06.
20 U W
100
200
300
800
1 000
100
I
80
I
1
60
I
1
40
1
20
1
0
200
KILOMETERS
Figure 2. The vertical distribution of current meters along the mooring
line during JOINT-I. Each bar represents a current meter.
3
and pressure. Depending on the water depth, two or five current meters at
each array were equipped with pressure sensors to monitor the motion of the
string and the true mean depths of the deployed instruments.
Wind data presented here were measured at Rhododendron, Urbinia and
Forest Fern. Winds were recorded on Aanderaa data loggers. The sensors
for wind speed, wind direction and air temperature were attached to a light
metal mast at a height of about 3 meters above the sea surface. All
meteorological parameters including surface water temperature were sampled
every 10 minutes.
2
The wind speed is averaged over the sampling interval,
the wind direction is instantaneous.
Two current meter strings were lost. One of these arrays was installed at shallow depths inshore from Rhododendron, and the other was the
second installation of Oregon Grape. It is assumed that trawlers caused
these losses.
Strong winds and high seas occasionally impeded launching and recovery
activities, so the lengths of the time series and the periods of common
operation were partially impaired by the weather as well as by the fishery
(Fig. 3).
Description of the Processed Data
OSU current meters were calibrated before the experiment. All measuring
units exhibited satisfactory reproducible data. The method of calibration
and the subsequent procedure of data processing is explicitly described
by R. D. Pillsbury et al. (1974).
2
The records of Rhododendron 1 and Urbinia 1 are based on 5 minute
sampling intervals.
JOINT-I Current Meter Array
4
MAR
I
I
I
I
I
APR
I
I
I
I
I
1974
Rhodededron
•
Urbinia
Weed
Lisa (PMEL)
777777779 Oregon Grape
Lupine
currents VMEMMEME....-A
Forest Fern
meteorology
Foxglove
Figure 3. Operation time of the different moorings during JOINT-I. The
PMEL installation Lisa was located in the proximity of Urbinia
and Weed (less than 1 nm apart). Shaded beams denote the current measurements; thick black lines denote the wind measurements.
5
Data from each string of current meters are presented separately, The
header page gives information about the location of the string, the data
interval, and a general statement about the kind and quality of the data.
The depth of the instruments is given two ways. The intended depth is based
on mooring wire length and intended water depth. When the current meter
had a pressure sensor, the actual depth of the instrument is given by the
mean pressure. However, each meter record is identified by intended depth.
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 from
machine number 485.
The table of statistics presented next gives the arithmetic mean,
the standard deviation, the skewness, kurtosis, the maximum value, and
the minimum value.
Real time plots of the hourly values follow the table of statistics.
(For a discussion of the filter used to produce these hourly values, see
Appendix 2 of Pillsbury et al.[1974]). For ease in comparison, the plots
of the winds and the currents have been grouped by true east-west (U) components and true north-south (V) components.
There are errors in the presented wind components from Urbinia 1
during the 13 to 16 March. Before and after this period these time series
of the winds are reliable. This has been established by comparing the
data from Urbinia 1 with shipboard measurements and the simultaneous wind
records at Lisa. A heavy sand storm just prior to the instrumental malfunction was believed to cause the failure of the direction sensor. After
6
16 March Urbinia 1 was picked up (17 March). The wind sensors were replaced, the magnetic tapes changed, and the string was moored again.
The progressive vector diagrams (PVD's) are all scaled to page size,
and all scale numbers are in kilometers. These plots represent a pseudotrajectory, and each dot on the PVD is 0000 GMT of successive days. The
spectra presented are rotary spectra as discussed by Mooers (1970) and
Pillsbury (1972). Figure 4 shows the conversion from cycles/hour to
cycles/day.
(cycles/day)
0
.
J
"
■
I
I
0
r■
3.0
1
2.0
1.0
■
0.02
0.04
0.06
(cycles/hour)
Figure 4
0.08
0.10
0.12
7
ACKNOWLEDGMENTS
The funds for the program came from National Science Foundation grant
GX-33502, a support which is gratefully acknowledged. We are indebted to
Dr. R. L. Smith, who contributed to designing and coordinating the experiment. Many thanks go to B. Moore and D. Barstow for the calibration and
preparation of the instruments as well as for their effort during the
fieldwork. Appreciation also is expressed to D. Root and W. E. Gilbert
for their invaluable assistance in the data processing. Special thanks
are due to K. Tamura who typed this report, and C. Christenson for the
drawings and the final editing of the data. Finally, we gratefully
acknowledge the cooperation of Captain Hagan and his crew from R/V GILLISS,
which made the operation during JOINT-I successful.
8
REFERENCES
Barton, D., M. R. Stevenson, and W. E. Gilbert. 1975. CTD/STD
measurements off the NW African coast near Cabo Corveiro during
JOINT-I. R/V GILLISS Cruise GS7401, February - April 1974.
School of Oceanography, Oregon State University, Corvallis,
Oregon 97331. Data Report 63. Reference 75-3.
Mooers, C. N. K. 1970. The interaction of an internal tide with
the frontal zone of a coastal upwelling region. Doctoral
dissertation. Oregon State University, Corvallis. 480 pp.
Pillsbury, R. D. 1972. A description of hydrography, winds and
currents during the upwelling season near Newport, Oregon.
Doctoral dissertation. Oregon State University, Corvallis.
163 pp.
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. School of
Oceanography, Oregon State University, Corvallis. Data Report
57. Reference 74-2.
9
INSTALLATIONS
11
12
1974 JOINT I Installation
RHODODENDRON I
Position: 21°40.2'N, 17°08.3'W
Depth of Water: 42 m
Set at 1537 GMT 23 February 1974 by R/V GILLISS
Retrieved at 0927 GMT 17 March 1974 by R/V GILLISS
Data Interval: 2052 GMT 23 February to 0152 GMT 17 March
Instrumentation
Intended Depth
RCM4 Serial No./Tape No.
0 m
20 m
35 m
D72/16
746/9
684/14
Data were recorded every 5 minutes. Both subsurface
instruments recorded temperature, current speed and
current direction, pressure and salinity. The surface
buoy measured air and water temperature and wind
speed; but its direction sensor failed entirely.
13
RHODODENDRON I
0 m
MAX
MIN
3.5
17.3
12.3
509
2.5
18.0
15.5
509
MEAN
S.D.
SKEW
KURT
T Air (C)
15.6
0.8
-0.7
T Water (C)
16.7
0.5
0.3
20 m
S (cm/sec)
24.4
7.6
-0.3
3.0
42.0
1.7
510
U (cm/sec)
-2.8
8.0
0.4
3.4
24.3
-23.7
510
V (cm/sec)
-16.5
17.6
1.2
3.3
33.1
-41.4
510
16.2
0.3
-1.4
7.6
16.9
14.6
510
2.9
0.0
-0.0
1.9
3.0
2.8
510
0.08
-2.17
9.79
36.04
35.45
510
T Water (C)
P (10
5
2
n/m )
Sal (PPT)
35.90
35 m
S (cm/sec)
15.0
5.4
1.0
4.3
36.2
3.7
510
U (cm/sec)
-1.0
5.9
0.4
2.8
17.4
-15.7
510
V (cm/sec)
-9.0
11.7
0.7
2.7
18.5
-35.4
510
T Water (C)
16.1
0.3
-0.8
4.4
16.7
14.9
510
4.3
0.0
1.2
5.0
4.4
4.3
510
35.87
0.10
-0.23
2.80
36.06
35.57
510
P (10
5
2
n/m )
Sal (PPT)
14
/8.0
16.0
14.0
12 .0
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AIR TEMPERATURE D7216.LP
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24 FEB
1974
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SALINITY (35 M) 068414.LP
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20 METERS AT RHODODENDRON. 21.2 DAYS STARTING 2052 2/23/74
35 M AT RHODODENDRON. 21.2 DAYS STARTING 2049 23 FEB 74
ROTARY SPECTRUM
19
20 M AT RHODODENDRON. 23 FEB 74 TO 17 MAR 74. TAPE 746/9
8000 -
7000 -
6000 -
5000 -
4000 -
3000 -
2000 -
1000 -
\11/1
-0 12 -0.10 -0.08 -0.06 -0.04
-0.02
0
0.02
0.04
0.06
0.08
FREQUENCY, CYCI f 5 PER HOUR
ROTARY SPECTRUM
35 M AT RHODODENDRON. 23 FEB 74 TO 17 MAR 74. TAPE 684/14
3500 -
FREOUENCY, CYCLES PER HOUR
0.10
0.12
20
21
1974 JOINT I Installation
RHODODENDRON II
Position: 21°39.2'N, 17°08.8'W
Depth of Water: 45 m
Set at 1154 GMT 17 March 1974 by R/V GILLISS
Retrieved at 1642 GMT 18 April 1974 by R/V OCEANOGRAPHER
Data Interval: 1826 GMT 17 March to 0826 GMT 18 April
Instrumentation
Intended Depth
RCM4 Serial No./Tape No.
0 m
20 m
35 m
D125/3
268/24
756/8
Data were recorded every 10 minutes. The subsurface
instruments measured temperature, current speed and
direction and pressure. Salinity data were bad in
both meters.
22
RHODODENDRON II
0m
MIN
N
MEAN
S.D.
SKEW
KURT
MAX
S (m/sec)
8.1
3.0
-0.4
2.3
15.1
9.4
759
U (m/sec)
-2.6
3.6
0.1
2.2
5.9
-13.8
759
V (m/sec)
-6.5
3.5
1.4
4.7
5.9
-12.9
759
T Air (C)
16.4
1.2
1.4
6.7
23.5
13.7
759
T Water (C)
16.7
0.8
0.2
2.0
18.6
15.4
759
20 m
S (cm/sec)
27.3
7.3
-0.1
3.1
48.3
3.4
760
U (cm/sec)
-1.5
8.3
0.3
3.6
23.9
-27.3
760
V (cm/sec)
-24.2
11.9
1.6
6.3
24.1
-47.7
760
T Water (C)
15.9
0.4
0.5
2.6
16.9
15.0
760
P (10 n/m)
0.0
0.0
0.5
3.0
0.0
0.0
760
35 m
S (cm/sec)
18.4
6.4
0.2
2.3
35.6
0.4
760
U (cm/sec)
5.0
6.5
-0.3
3.3
21.6
-17.3
760
V (cm/sec)
-15.1
9.1
1.2
5.1
19.2
-32.9
760
T Water (C)
15.2
0.3
-0.1
2.4
16.0
14.6
760
P (10 n/m)
4.7
0.0
0.7
3.6
4.8
4.6
760
23
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WIND U tSFC) D1253.LP
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19.0
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18.0
17.5 _
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16.5
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1914
25
1 APR
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15
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20
E
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-40
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16.5
IS
WATER TEMPERATURE (20M) C26824.LP
20
26
17.0
16.5
16.0
25
18 MAR
1974
10
APR
WATER TEMPERATURE (35M) C68414 .LP
2500
2500
- -10000
- -12500
• -15000
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20 M AT RHODODENDRON. 31.7 DAYS STARTING 1809 17 MAR 74
- -2 0 000
WIND AT RHODODENDRON. 31.6 DAYS STARTING 1826 17 MAR 74
28
ROTARY SPECTRUM
WIND AT RHODODENDRON. 12 MAR 74 TO 18 APR 74. T APE DJ25/3
2000 -
1500
1000
500
0.10
0.12
FREQUENCY, CYCLES PER HOUR
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20 M AT RHODODENDRON. 12 MAR 74 TO 18 APR 74. TAPE 268/24
29
8000
6000
4000
2000
FREQUENCY, CYCLES PER HOUR
ROTARY SPECTRUM
35 M AT RHODODENDRON. 17 NOR 74 TO 18 APR 74. TAPE 756/8
6000 -
5000 -
4000 -
3000 -
2000 -
1000 -
4
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30
31
1974 JOINT I Installation
URBINIA I
Position: 21°40.6'N, 17°17.8'W
Depth of Water: 67 m
Set at 1301 GMT 24 February 1974 by R/V GILLISS
Retrieved at 1350 GMT 17 March 1974 by R/V GILLISS
Data Interval: 1903 GMT 24 February to 0603 GMT 17 March
•
Instrumentation
Intended Depth
0
20
40
60
m
m
m
m
RCM4 Serial No./Tape No.
D74/11
686/15
683/17
682/15
Data were recorded every 5 minutes. All three subsurface meters recorded temperature, current speed and
direction, pressure and salinity. The surface buoy
recorded air and water temperature, wind speed and
direction, until the air temperature sensor failed
on March 13.
32
URBINIA I
0 m
MAX
MIN
N
MEAN
S.D.
SKEW
KURT
S (m/sec)
6.7
3.1
-0.1
1.9
13.2
0.6
493
U (m/sec)
-1.5
3.5
-0.6
2.7
5.1
-11.6
493
V (m/sec)
-4.5
4.4
0.5
2.4
7.6
-12.7
493
T Air (C)
16.7
8.1
-2.0
4.2
18.5
13.5
400
T Water (C)
16.6
0.5
0.1
2.3
18.0
15.7
493
20 m
S (cm/sec)
22.9
8.1
0.7
3,4
49.8
0.9
493
U (cm/sec)
-9,0
9.8
0.1
2.1
20.9
-21.5
493
V (cm/sec)
-12.8
18.2
0.5
2.2
26.2
-49.8
493
16,1
0.5
0.0
2.4
17.0
14.5
493
2.6
0.0
0.2
2.5
2.7
2.5
493
35.79
0.11
-0.69
2.80
35.97
35.40
493
T Water (C)
P (10
Sal
5
2
n/m )
(PPT)
40 m
S (cm/sec)
21.5
8.9
0.6
2.4
48.0
3.7
492
U (cm/sec)
4.3
7.9
-0.7
2.7
19.5
-17.1
492
V (cm/sec)
12.3
17.6
0.3
2.0
24.6
-48.0
492
T Water (C)
15.5
0.5
0.1
2.5
17.0
14.2
492
4.6
0.0
-0.0
2.1
4.7
4.5
492
35.80
0.12
3.41
36.09
35.49
492
P (10
5
2
n/m )
Sal (PPT)
0.76
60 m
S (cm/sec)
15.3
8.3
0.7
2.5
37.7
1.8
492
U (cm/sec)
4.5
6.6
-0.2
2.2
18.2
-10.6
492
V (cm/sec)
-8.2
13.2
0.0
2.1
20.5
-36.1
492
T Water (C)
15.1
0.5
-0.8
2.8
15.8
13.9
492
6.6
0.0
0.2
2.5
6.7
6.6
492
35.56
0.09
-0.45
2.35
35.76
35.35
492
P (10
Sal
5
2
n/m )
(PPT)
33
10
5
In
WIND U t5FC/ D7411.LP
10
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15
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25 FEB
1974
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34
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AIR TEMPERATURE 07411.LP
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17.5
17.0
1974
WATER TEMPERATURE tO M) D7411.LP
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0
20
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0
20
0
—20
—40
36
17.0
16.5
16.0
U
15.5
U)
E 15.0
0
oc
14.5
WATER TEMPERATURE (20 M) C68615.LP
17.0
16.5
16.0
15.5
U
15.0
U)
0
14.5
14.0
I
fl-ff
1111
WATER TEMPERATURE (40 M) C68317.LP
WATER TEMPERATURE (60 M) C68215.LP
1
37
N
t„
0
a.
2.75
2.50
2.25
PRESSURE (20 M) C68615.LP
PRESSURE (40 M) C68317.LP
0
6.75T
VillW,WmAntA"A,
6.501 I
1 1 11111Th1111
PRESSURE (60 M) C68215.LP
SALINITY (20 M) C68615.LP
36.25,
2cm
36.00
35.75
35.50
i
35
0000
25
1914
I
1
5
Ilitff4-111
MAR
10
13
IfitifiP i
SALINITY (40 M) C68317.LP
38
36.00_
T 1200
WIND AT URBINIA. 20.5 DAYS STARTING 1925 24 FEB 74 GMT
90
20 METERS AT URBINIA. 20.5 DAYS STARTING, 1901 24 FEB 74
80
60
-40
--120
- -160
--200
- -150
- -240
40 METERS AT URBINIA. 20.5 DAYS STARTING 1903 24 FEB 74
60 METERS AT URBINIA. 20.5 DAYS STARTING 1903 24 FEB 74
ROTARY SPECTRUM
WIND AT URBINTA. 24 VLB 74 10 17 MAR 74. TAPE 074/11
41
1000 -
800 -
600 -
400 -
200 -
0
0.02
0.08
0.10
0.12
0.00
0.10
0.12
FREQUENCY, CYCLES PER HOUR
ROTARY SPECTRUM
20 METERS AT URBINIA
2/24/74 TO 3/17/74. TAPE 686/15
0.04
UPLOUINCY. CYCLE!, PER HOUR
0.06
ROTARY SPECTRUM
42 '
40 NETFRS AT URBINIA. 2/24/24 TO 3/12/74. TAPE 683/12
5500
5000
4500
4000
3500
3000
2500 2000 1500
1000 500
0
-0 12 -0.10
-0.00
-0.06
-0.04
-0.02
0.02
0
0.04
0.06
0.10
0.00
0.12
FREQUENCY. CYCLES PER HOUR
ROTARY SPECTRUM
60 M AT URBINIA. 24 FEB 74 TO 17 MAR 74. TAPE 682/15
3500
3000
2500
2000
1500
1 0 00
500
I
-0 12
0.10
-t.06
-0.06
.04
I RI
-0.02
it Nr,Y .
0
c'T(.1 1
0.02
0.04
0.06
•
\
0.00
GAO
0.12
43
\s,
sA
ss
,111
\\
\■\
„,\\
44
1974 JOINT I Installation
URBINIA II
Position: 21°40.0'N, 17°17.8'W
Depth of Water: 67 m
Set at 1750 GMT 17 March 1974 by R/V GILLISS
Retrieved at 1435 GMT 25 April 1974 by R/V OCEANOGRAPHER
Data Interval: 0008 GMT 18 March to 0708 GMT 25 April
Instrumentation
Intended Depth
0
20
40
60
m
m
m
m
RCM4 Serial No./Tape
D126/5
748/7
754/8
755/8
Data were recorded at 10 minute intervals. All subsurface meters measured temperature, current speed
and direction, pressure and salinity. The surface
buoy recorded water temperature, wind speed and
direction. The air temperature sensor failed entirely.
45
URBINIA II
0 m
MAX
MIN
N
MEAN
S.D.
SKEW
KURT
S (m/sec)
6.5
3.0
0.1
2.1
13.8
0.0
289
U (m/sec)
0.2
2.9
-0.3
2.3
5.7
-7.9
289
V (m/sec)
-5.6
3.5
0.1
1.9
1.5
-13.3
289
20 m
S (cm/sec)
24.6
6.7
0.2
3.0
45,7
2.9
920
U (cm/sec)
-1.4
8.2
0.2
2.7
25.4
-24.2
920
V (cm/sec)
-22.1
9.6
1.3
6.4
20.0
-45.2
920
16.4
0.5
0.1
2.3
17.8
15.3
920
2.5
0.0
0.6
2.6
2.6
2.5
920
35.92
0.07
0.49
3.11
36.16
35.78
920
T Water (C)
P (10
5
2
n/m )
Sal (PPT)
40 m
S (cm/sec)
25.3
8.4
0.5
2.8
49.1
3.2
920
U (cm/sec)
6.2
7.1
-0.6
3.1
21.7
-16.7
920
V (cm/sec)
-22.6
10.5
0.6
4.2
16.2
-47.5
920
T Water (C)
15.6
0.5
-0.6
3.5
16.7
13.9
920
P (10 n/m)
4.5
0.0
1.7
6.5
4.6
4.5
920
60 m
S (cm/sec)
16.2
8.4
0.5
2.4
39.9
0.5
920
U (cm/sec)
8.1
6.3
-0.3
3.2
23.6
-12.0
920
V (cm/sec)
-11.8
9.3
0.2
2.9
14.3
-36.6
920
14.9
0.5
-0.2
2.2
16.3
13.8
920
6.6
0.0
0.7
4.8
6.7
6.6
920
35.41
0.31
-1.06
2.93
35.87
34.68
920
T Water (C)
P (10
5
2
n/m )
Sal (PPT)
46
18.5
18.0
17.5
17.0
16.5
16.0
It; 15.5
Lai
15.0
0000
19 MAR
23
1 APR
1 974
flit Ill 1 1 -1--1-4-1
WATER TEMPERATURE (0 M)131265.LP
0
20
0
-20
U (40 M) C7548.LP
20
to
0
-20
-40
•
V (40 M) C7548.LP
U
L.,
LI)
N
U
U
16.0
U)
LI 15.5
15.0
T
0000
19 MAR
1
I
1974
F
I
11
25
I
I
F
If
h
F
APR
1
F
I
I
5
I
I
WATER TEMPERATURE (20 M) 07487.LP
+---+
I
10
I
I5
1
20
I
I
25
1111111-111111F111/tf1111111111111111i11
WATER TEMPERATURE t40 M) C7548.LP
0000
19 MAR
1
1
1
1
25
11111'11
1974
WATER TEMPERATURE (60 M) C7558.LP
1:
z
0
IL
PRESSURE (20 M) C7487.LP
N
O
4.75
4.50
4.25
AII1tAAAMAMMAAAAAA.AAAMAAWAAMMAI
►
IIIIIIII
111111
1111111111111II11
1
111111
PRESSURE (40 M) C7548.LP
N
u, 6.75-
0
a. 6.50
st"'"‘"AAAArLIVIIVVIA
1
1
1111111111111
PRESSURE (60 M) C7558.LP
11111
1
1
1
11111111111
t
1411
36.00
35.75
35.50
35.25
25
APR
SALINITY (60 M) C7558.LP
5
10
IS
20
25
850
-125
125
-125
IL
-125
- 42 5
- -375
- -500
--625
--750
-5950
WIND AT URBINIA. 12 DAYS. STARTING 0006 18 MARCH 74
20 METERS AT URSINIA. 38.3 DAYS STARTING 0=8 18 MAR 74
50
100
100
-100
200
300
-50
-1 0
-20'
-100
-300
-150
-400
-200
- -500
-250
- -600
- -300
- -200
- -350
--800
- -400
40 METERS AT URBINIA.
38.3 DAYS STARTING 0004 18 MAR 74
60 M AT URBINIA.
38.3 DAYS STARTING 0005 18 MAR 74
ROWY 5PUTROM
WIND 1' MANIA.
54
12 mnR
74 TO 30
rink!
74. TArE D126/5
500 -
400 -
300 -
200 -
100 -
0.02
0.04
0:06
FREQUENCY, CYCLES PER HOUR
ROTARY SPECTRUM
20 METERS AT URSINIA. 12 MAR 74 TO 25 APR 74. TAPE 748/7
8000 -
7000 -
6000 -
5000 -
4000 -
3000 -
2000 -
1000 -
0
FRLOULNCY, CYNIS PFR HOUR
0.12
ROTARY SPLCIRUM
55
40 METERS AT URAINIA. 17 MAR 74 10 25 APR 74. TAPE 755/8
10000 -
8000 -
6000 -
4000
-
2000 -
0
0.02
0.04
0.06
0.08
0.10
0.12
FREQUENCY, CYCLES PER HOUR
ROTARY SPECTRUM
60 M AT URBINIA. 17 MAR 74 TO 25 APR 74. TAPE 755/8
12000 -
10000 -
8000 -
6000 -
4000 -
2000 -
0
I
.0............1.......4*,.......r.o.."441Y'4.m'''''t - —4--
-0 12
-0.10
-0.08
-0.06
-0.04
FRf
-0.02
0 1.1111;:r
0
C CCI f ti
0.02
P
0.04
0.06
0.08
0.10
0.12
56
57
1974 JOINT I Installation
WEED
Position: 21°39.5'N, 17°17.5'W
Depth of Water: 67 m
Set at 1441 GMT 4 March 1974 by R/V GILLISS
Retrieved at 1750 GMT 6 April 1974 by R/V GILLISS
Data Interval: 2052 GMT 4 March to 1052 GMT 6 April
Instrumentation
Intended Depth
17
25
35
45
55
61
m
m
m
m
m
m
RCM4 Serial No./Tape No.
913/1
1026/1
1027/1
918/1
1024/1
1025/1
Data were recorded every 10 minutes. All instruments
recorded current speed and direction, and temperature.
The 45 m instrument failed to produce any useable
speed data. In addition, pressures were recorded by
the 17 m, 55 m, and 61 m instruments.
58
WEED
17 m
MAX
MIN
N
MEAN
S.D.
SKEW
KURT
S (cm/sec)
25.4
7.6
0.3
3.1
51.2
4.1
783
U (cm/sec)
-0.4
8.0
0.2
2.6
22.5
-20.5
783
V (cm/sec)
-23.3
9.8
0.7
4.6
17.4
-51.2
783
16.5
0.5
-0.3
1.9
17.6
15.5
783
2.3
0.0
0.4
2.6
2.5
2.3
783
T Water (C)
P (10 n/m)
25 m
S (cm/sec)
25.7
7.5
0.3
2.9
51.5
8.0
783
U (cm/sec)
-1.0
8.1
0.4
2.4
21.5
-17.3
783
V (cm/sec)
-23.6
9.5
0.6
4.4
14.7
-50.3
783
16.3
0.4
-0.3
2.0
17.2
14.9
783
T Water (C)
35 m
S (cm/sec)
26.2
8.0
0.3
2.5
47.6
8.5
783
U (cm/sec)
4.5
7.1
-0.3
2.7
21.4
-18.9
783
V (cm/sec)
-24.0
10.4
0.6
3.9
17.7
-47.6
783
16.0
0.5
-0.7
3.2
17.0
14.2
783
2.3
17.0
13.9
783
T Water (C)
45 m
T Water (C)
15.5
0.6
-0.5
55 m
S (cm/sec)
22.1
9.1
-0.0
2.0
47.1
1.8
783
U (cm/sec)
12.2
8.4
-0.7
3.0
29.3
-14.3
783
V (cm/sec)
-16.0
9.8
0.5
2.9
13.0
-43.0
783
15.1
0.6
-0.2
2.0
16.5
13.8
783
6.1
0.0
0.1
3.4
6.2
6.0
783
T Water (C)
P (10 n/m)
WEED
59
61 m
S (cm/sec)
19.0
8.4
0.1
1.9
40.3
2.5
783
U (cm/sec)
9.5
6.7
-0.7
3.3
22.7
-12.4
783
V (cm/sec)
-14.1
9.8
0.5
2.7
14.0
-35.8
783
14.9
0.6
-0.3
1.9
16.2
13.8
783
6.7
0.0
0.2
4.3
6.8
6.7
783
T Water (C)
P (10 n/m)
60
U
20
LI
1.13
U
0
-20
U (17 M) C9131.LP
20
0
-20
U (25 M) C10261.LP
20
'Mistsito,„41,1TAIL
0
U
-20
(35 M) C10271.LP
U
20
U
20
Li
0000
ti3
U
-20
1974
-40
V (25 M)C10 61.LP
61
-40
V (35 M) C10271.LP
20
KI
0
1.7
-20
-40
V t55 M) C10241.LP
20
U
In
0
V
-20
-40
V (61 M) C10251.LP
18.0
17.5
17.0
16.5
16.0
u
N
b 15.5.
IL:
0
0000
15•0
SMAR
14-1
19 74
1
10
20
15
25
14-fill14-1+411441111114
WATER TEMPERATURE t17 M) C9131.LP
41
AP R
1
111444
62
18.0
17.5 .
17.0
16.5 _
16.0
cS
14.5
I
I
1
►
+
1
4
4- 4
4-
I- 4
1
4
WATER TEMPERATURE (25 M) C10261.LP
17.5 _
17.0
16.5
16.0
15.5
15.0
14.5
1
tY
4:3
14.0
0000
5 MAR
APR
► 4
1974
WATER TEMPERATURE (35 M) C10221.L?
5
► 4-
63
17.0 16.5
16.0
15.5
15.0
WATER TEMPERATURE (45 M) C9181.LP
17.0
T
16.5 _
16.0 _
15.5 15.0 -
10
15
1974
WATER TEMPERATURE t55 M) C10241.LP
64
WATER TEMPERATURE (61 M) C10251.LP
N
z
u, 2.50T
a.
2.251
WM!) hi\MIIINIAW4MANi
I-41
11144-tfiII*--1
PRESSURE (17 11) C9131.LP
N
0
0
6.25
6 .00
PRESSURE (55
0
z
1„
0
0_
M)
C10241.LP
7.00
6.75
6.50
.av4AAINAnAe--WN""-0000
15
10
5 MAR
20
1974
PRESSURE
(61 M) C10251.LP
25
1
APR
5
90
-90
90
L
-90
-90
-180
-180
-270
-270
-360
-360
-450
-450
-540
-540
-62O
-630
-720
-720
17 METERS AT WEED. 32.6 DAYS STARTING 2052 4 MAR 74 GMT
25 METERS AT WEED. 32.6 DAYS STARTING 2052 4 MAR. 74
rn
CS)
60
-90
-90
90
180
60
-60
120
180
250
- -60
- -120
- -180
- -240
- -300
- -360
- -420
- -720
35 M AT WEED. 32.6 DAYS STARTING 2052 4 MARCH 74 GMT
- -480
55 METERS AT WEED. 32.6 DAYS STARTING 2053 4 MARCH 74 GMT
300
3c:
ROTARY SPECTRUM
17 M AT WEED. 4 MARCH 74 TO 6 APRIL 74. TAPE 213/1
67
10000
8000
6000 -
4000 -
2000 -
:!*".!'''.414,e+.....4444.414444.4.4.4ref
4
0
-0 12
-0.10
-0.08
-0.U6
-0.04
-0.02
0
0.02
ITI- UUUNCY, (Mr!, PLR HOUR
0
- o
-
0
:/)
N
0
-0
N
O
O
trt
0
0.04
0.06
0.08
...,./t4.44.04644444■4114,
0.10
0.12
P01ARY 5P1 C1 RUN
68
25
rE1URU
AT WELD
MOP 24 10 6
11PR
24. TAUC 1026/1
10000
t
8000 -
6000 -
4000 -
2000 -
0
-0 12 -0.10 -0.08 -0.06 -0.04 -0.02
FREQUENCY. CYCLES PER HOUR
ROTARY SPECTRUM
35 METERS AT WEED. 4 MAR 74 TO 6 APR 74. TAPE 1027/1
10000 -
8000 -
6000 -
4000 -
2000 -
I
--0 12
-0.10
-0.0e
0.04
-3.02
F1E1 QUI
NC T , C
0
0.02
1 : A Pi P 111E.11.1
0.04
0.0(1
0.0(3
0.10
0.12
ROTARY 5ITC1RUM
55 NFTLW; AT WEW
4 MARCH 24 '0 6 (ma 74.
T
A"L 1024/1
69
10000 -
8000
6000
4000
2000
0
-0 12
--0.10
-0.08
-0.06
-0.04
-0.02
0
0.02
0.04
0.06
0,08
0.10
0.12
0.10
0.12
FREQUENCY, CYCLES PER HOUR
ROTARY SPECTRUM
61 METERS AT WEED. 4 MARCH 74 TO 6 APRIL 74. TAPE 1025/1
10000 -
8000 -
6000
1
4000 -
2000 -
0.10
-4
...t..,./
.601.1.44.4.1.4.1.
-0 12
0.08
-0.06
-0.04
-0.02
f Rf Qtlf NCI'
0
0.02
C C,i I
f'
0.04
0.06
0.08
70
71
1974 JOINT I Installation
OREGON GRAPE
21°44.2'N, 17°24.8'W
Position:
Depth of Water: 104 m
Set at 1045 GMT 5 March 1974 by R/V GILLISS
Retrieved at 0904 GMT 25 March 1974 by R/V GILLISS
Data Interval: 1710 GMT 5 March to 0110 GMT 25 March
Instrumentation
Intended Depth
RCM4 Serial No./Tape No.
0
20
40
60
80
97
D75/15
747/9
749/7
750/8
751/8
752/9
m
m
m
m
m
m
Data were recorded at 10 minute intervals. All subsurface meters measured temperature, current speed
and direction, pressure and salinity. The surface
buoy produced no useable data.
72
OREGON GRAPE
20 m
MIN
N
MEAN
S.D.
SKEW
KURT
MAX
S (cm/sec)
21.3
7.0
0.2
3.4
45.8
2,3
465
U (cm/sec)
2.9
12.7
-0.4
2.2
30.8
-27.5
465
V (cm/sec)
-11.2
14.4
0.6
3.0
31.9
-43.8
465
16.8
0.5
-0.9
3.0
17.8
15.5
465
2.1
0.0
0.2
2.2
2.2
2.0
465
0.08
0.44
2.76
36.01
35.64
465
T Water (C)
P (10
Sal
5
2
n/m )
(PPT)
35.80
40 m
S (cm/sec)
19.5
5.9
0.1
3.5
37.1
1.1
465
U (cm/sec)
8.2
10.8
-0.7
2.6
26.6
-24.5
465
V (cm/sec)
-8.1
12.8
0.4
2.8
28.0
-36.8
465
T Water (C)
16.6
0.5
-0.7
2.6
17.5
15.6
465
4.0
0.0
0.3
2.1
4.1
4.0
465
0.08
0.31
2.53
36.03
35.63
465
P (10
Sal
5
2
n/m )
(PPT)
35.81
60 m
S (cm/sec)
20.4
5.2
0.1
3.6
35.8
2.5
465
U (cm/sec)
13.6
7.3
-0.8
3.5
26.7
-14.9
465
V (cm/sec)
-6.8
12.6
0.4
2.9
30.1
-35.4
465
T Water (C)
16.3
0.5
-0.5
2.5
17.5
14.9
465
6.1
0.0
0.2
2.2
6.3
6.0
465
3.17
36.15
35.61
465
P (10
5
2
n/m )
Sal (PPT)
35.92
0.09
-0.29
73
80 m
S (cm/sec)
18.3
5.9
0.3
3.2
37.6
0.9
465
U (cm/sec)
11.9
8.7
-0.7
3.2
30.1
-16.2
465
V (cm/sec)
-2.6
12.0
0.2
2.4
28.1
-29.6
465
T Water (C)
15.9
0.5
-0.4
2.6
17.0
14.4
465
8.2
0.0
-0.1
3.7
8.3
8.1
465
35.57
0.12
-0.25
2.89
35.84
35.27
465
P (10
Sal
5
2
n/m )
(PPT)
97 m
S (cm/sec)
13.8
6.2
0.6
3.1
34.5
1.3
466
U (cm/sec)
7.0
8.9
-0.1
2.8
32.9
-22.9
466
V (cm/sec)
1.9
9.9
0.2
2.6
32.5
-22.0
466
15.2
0.5
-0.5
3.4
16.6
13.0
466
10.0
0.0
0.1
2.2
10.1
9.9
466
35.62
0.11
-0.25
2.70
35.96
35.26
466
T Water (C)
P (10
Sal
5
2
n/m )
(PPT)
74
U (20 M) C7479.LP
U (40 M) C7497.LP
01"°iYAtt4,4'
U (60 M) C7518.LP
20
0
ci
-
-20 _
40
20
0
U
—20
U t80 M) C7518.LP
75
40 ...
V (20 M) C7479.LP
U
in
U
U
rU
U
In
U
In
U
-20
20
0
-A
y
f
0000
••• 6MAR
1874
VCI
10
V (97 M) C7529.LP
76
18.0
17.5
17.0
U
16.5
16.0
15.5 ---
4- I-- 4-4--
-4--
4
WATER TEMPERATURE (20 M) C7479.LP
18.0
17.5
17.0
16.5
U
16.0
4
La 15.5 4
5
O
15.0
0000
6 MAR
-4-
IA
t
15
I
-4-
I-
20
I
25
I
1974
WATER TEMPERATURE (40 M) C7497.LP
-1------1
77
WATER TEMPERATURE ta MJ C2508.LP
0000
6 MAR
4-- 4
15
10
I-
4-
4-
20
F-
4- 4
4-
1974
Z7FR TEPt-TRATURE (80 N) C7518.LP
20
--
4
78
17.0
T
16.5
16.0
15.5
15.0
14.5
14.0
U
13.5
61 1 13.0
12.5
4
WATER TEMPERATURE (97 M) C7529.LP
AMMOmmAAAAAAMAINN
ff111114114-4-4PRESSURE (20 M) C7479.LP
, 4.25
z
0
4.00
3.75
PRESSURE (40 M) C7497.LP
N:
z
,„
0
79
6.25,
6.00
PRESSURE (60 M) C2508.12
8.50
8.25
8.00
I
I
I
I
PRESSURE (80 M) C7518.LP
— 10.25
1:
,z0 10.00
'-I
10.0
9.25
t
t I
i
i
1
I
i
r
r
r I
I
1
1
F
I
1
I
PRESSURE (97 M) C7529.12
(r)
35 . 50
6 MAR
10
I
r I 4- 4-- 4- 4-41974
13
20
I-
11 t 4- 4-
SALINITY t20 M) C7479.LF
25
80
36.25
q
z
ftc) 36.00
0
35.75
I
1—
cr.
35.50
35 •
SALINITY (40 M) C7497.LP
36.25_
0
z
q
36.00 \ift
o
x
rx
35.75 _
14
a_
12
35.50
1111111111114111-11114
SALINITY (60 rt) C7508.LP
36.00_
z
to
cr.
35.75
F 35.50
ET.
12 35.25
cr.
0
SALINITY (80 Ml C7518.LP
36.00_
35.75
0
x
1... 35.50
a.
0000
in 35 25
1-••
6 MAR
IX
ct
a.
10
15
ILO
26
11111-111111-1-11111-111
1974
SALINITY (97 M) C7529.LP
1
25
-25
25
75
IOC
-25
-50
--7 5
- -100
--125
- -150
40 M AT OREGON GRAPE. 19.3 DAYS STARTING 1710 5 MAR 74
20 M AT OREGON GRAPE. 19.4 DAYS STARTING 1708 5 MAR 74
125
15
40
82
20
-20
-20
97 M AT OREGON GRAPE. 19.4 DRYS STARTING 1703 5 MARCH 74 GM
80 M AT OREGON GRAPE. 19.4 DAYS STARTING 1712 5 MAR 74
45
45
-45
90
135
180
-45
-90
--135
CO t, ETERS PT OREGON GRAPE. 19.3 . DRYS STARTING 1.711 5 MAR 74
225
270
ROTARY SPECTRUM
20 M AT OREGON GRAPE.
16000
-
14000
-
12000
-
83
5 MAR 74 TO 25 MAR 74. TAPE 747/9
10000
8000
6000
4000
2000
0
-04-4-...-4-4-4.4-
-0 12
-0.10
•
4
0.08
-0.06
-4-
-0.04
-0.02
0
FRESJI NEY , CYCI
0.02
ni
0.04
0.06
0.08
PLR HOUR
ROTARY SPECTRUM
40
n
AT OREGON GRAPE. 5 MAR 74 TO n MAR 74. TAPE 749/7
10000 -
0
0.02
FREQUENCY. CYCLES PER HOUR
0.04
0.06
0.08
0.10
0.12
ROTARY SPECTRUM
84
60 M AT OREGON GRAPE. 5 MAR 74 TO 25 MAR 74. TAPE 750/8
10000 -
6000 -
6000 -
4000 -
FREQUENCY. CYCI ES PER HOUR
ROTARY SPECTRUM
80 M AT OREGON GRAPE. 5 MAR 74 TO 25 MAR 74. T APE 251/8
8000
6000
4000
2000
0.06
FREQUENCY, CYCLES PER HOUR
0.08
0.10
0.12
85
ROTARY SPECTRUM
97 M AT OREGON GRAPE. 5 MAR 74 TO 25 MAR 74. TAPE 752/9
7000 -
6000 -
5000 -
4000
3000
2000
1.000 -
-1-
1
-0 12
-0.10
-0.08
-n.06
0.04
F
-0.02
RIOIJLINC1
0
-tilt
0.02
CIT.t (.5 I't R HOUR
0.04
0.06
0.08
0.90
0.12
86
87
1974 JOINT I Installation
LUPINE
Position: 21°40.9'N, 17°29.7'W
Depth of Water: 400 m
Set at 1224 GMT 6 March 1974 by R/V GILLISS
Retrieved at 1513 GMT 6 April 1974 by R/V GILLISS
Data Interval: 1857 GMT 6 March to 0757 GMT 6 April
Instrumentation
Intended Depth
20
60
100
200
300
m
m
m
m
m
RCM4 Serial No./Tape No
597/12
753/8
-452/23
494/17
495/23
486/16
Data were recorded every 10 minutes. All instruments
recorded temperature, current speed and direction.
The 400 m instrument malfunctioned and data had to
be corrected by interpolation. The 60 m and 300 m
instruments measured pressure. Salinity data was
produced only by the 60 m instrument.
88
LUPINE
20 m
MIN
N
MEAN
S.D.
SKEW
KURT
MAX
S (cm/sec)
24.1
7.8
-0.2
2.9
45.7
2.6
734
U (cm/sec)
-1.0
16.5
-0.0
2.1
37.9
-41.6
734
V (cm/sec)
-7.3
17.8
0.4
2.0
36.3
-39.2
734
T Water (C)
17.0
0.5
-0.4
2.7
18.0
15.8
734
60 m
S (cm/sec)
19.8
6.3
0.1
3.4
39.9
2.3
734
U (cm/sec)
8.2
10.1
-0.5
2.7
31.7
-22.7
734
V (cm/sec)
-5.4
15.3
0.3
2.3
39.3
-35.6
734
T Water (C)
16.6
0.4
-0.6
3.3
17.9
15.0
734
5.8
0.0
1.2
6.3
6.1
5.7
734
35.99
0.11
-0.76
3.62
36.24
35.61
734
P (10
5
2
n/m )
Sal (PPT)
100 m
S (cm/sec)
16.9
6.5
0.6
3.7
40.5
1.6
734
U (cm/sec)
7.6
8.5
-0.2
2.9
31.1
-18.0
734
V (cm/sec)
-1.2
14.0
0.1
2.4
38.4
-37.0
734
T Water (C)
15.8
0.6
-0.4
2.5
17.3
14.1
734
200 m
S (cm/sec)
14.2
6.7
0.6
2.9
35.9
0.4
734
U (cm/sec)
3.5
6.8
0.3
3.0
25.3
-14.0
734
V (cm/sec)
10.3
9.1
-0.1
3.0
35.8
-15.2
734
T Water (C)
14.0
0.5
0.1
2.4
15.5
12.7
734
89
LUPINE
300 m
MAX
MIN
N
MEAN
S.D.
SKEW
KURT
S (cm/sec)
13.8
6.8
0.5
2.9
39.6
1.3
735
U (cm/sec)
2.3
5.0
0.4
4.2
24.2
-13.7
735
V (cm/sec)
11.7
8.4
0.0
3.0
39.3
-14.2
735
T Water (C)
12.6
0.5
0.8
3.6
14.6
11.5
735
P (10 n/m)
29.3
0.0
1.1
6.5
29.5
29.2
735
400 m
S (cm/sec)
14.5
7.6
0.7
3.4
48.5
0.2
734
U (cm/sec)
-3.6
10.5
-0.3
3.2
22.5
-46.3
734
V (cm/sec)
2.2
11.8
-0.4
3.0
31.5
-36.2
734
11.3
0.6
-0.2
3.6
13.1
9.4
734
T Water (C)
90
U (20 M) C59712.LP
40
20 — I
In
o
44■01\41110$110
—20
U (60 M) C7538.LP
40
U
20
U)
0
IL;
—20
20
144
U
0
—20 —
U (200 M) C49417.LP
U
U
U (400 M) C48616.LP
91
U
U)
U
40
U
W
fn
U
20
0
-.20
40
20
\O\kvilf"INN
-20
40
U
o
U
-20
-40
V (400 M) C48616.LP
Al■
eftopori,
92
18.5
18.0
1).5
1).0
16.5
U)
16.0
16 •
us
cr.
Lai
15.5
WATER TEMPERATURE (20 M) C59712.LP
18.0
17.5
4.
17.0
16..50
16.0 t
1
U
)
,
E 15.5
EO
.
..k:
. 15.00
1. 0000
7 MAR
i
I1974
1
I
10
I
APR
f
WATER TEMPERATURE (60 M) C2538.L?
5
93
16.0
15.5
15.0
U
:•!-• 14.5
0
14.0
WATER TEMPERATURE (100 M) C45223.LP
APR
I
41illft
WATER TEMPERATURE (200 M) C49412.03
5
WATER TEMPERATURE (300 M) C49523.LP
13.5
13.0
12.5
12.0
11.5
pf
11.0
10.5
10.0
9.5
LJ
0 9.0
0000
7 MAR
1
974
I
10
15
IIIIIIIIIII
20
f
25
APR
5
ill 4-4--1-0-A--i---1-1-.--1----.1-'-f---
WATER TEMPERATURE (400 M) C48616.12
95
6.25
•-• 6.00
z
O
a.
5.75
5.50
PRESSURE (60 PI) C7538 .LP
PRESSURE (300 M) C49523 .LP
36.25
O
z
CC 36.00
u3
O
35.75
35 •
in 35.50
Q
0000
7 MAR
e-
lx
10
15
0
1974
SALINITY (60 Pt) C7538 .LP
25
1
APR
-80
60
-60
-S0
30
60
40
-40
80
120
160
- -40
- -80
-120
- -160
60 M AT LUPINE. 30.6 DAYS STARTING 1853 6 MARCH 24 GMT
20 M AT LUPINE. 30.6 DAYS STARTING 1857 6 MAR 74 GMT
00
240
-280
-105
-35
-35
100 M AT LUPINE. 30.6 DAYS STARTING 1852 6 MAR 74 GMT
-35
35
70
105
- -35
200 M AT LUPINE. 30.6 OATS STARTING 1854 6 MAR 74 GMT
00
215
400 METERS AT LUPINE. 30,6 DAYS STARTING 1856 6 MAR 74
45
-45
90
-45
300 M AT LUPINE. 30.6 DAYS STARTING 1845 6 MAR 74 GMT
ROTARY SPECTRUM
20 M AT LUPINE. 6 MAR 74 10 6 APR 74. TAPE 597/12
99
25000 -
20000 -
15000 -
10000 -
5000 -
llotAr
FREOUENCY, CYCLES PERSA-Y-
ROTARY SPECTRUM
60 h AT LUPINE. 6 MARCH 74 TO 6 APRIL 74. TAPE 753/8
8000
6000
4000
2000
Nretot.s....ori 'N.ttNuoirehrel•WH"ti
—+—
0.02
I Pt Out lir.y
( yr
1I
1-f
110Y
0.04
0.06
0.08
0.10
0.12
ROTARY SPECTRUM
100 METERS AT LUPINE. 6 MAR 74 TO 6
1 00
n ry
74. TAPE 452/23
6000 -
5 000 -
4000 -
.3000
2000 -
1
10 00 -
FREQUENCY, CYCLES PER HOUR
ROTARY SPECTRUM
200 METERS AT LUPINE. 6 MAR 74 TO 6 APR 24. TAPE 494/17
3000 -
ERFOUINCY, CYC11 - 5 PLR HOUR
ROTARY SPECTRUM
300 METLRO AT IUPINE. 6 MAR 24 TO 0 APR 74. TAPE 495/23
101
3500 -
3000 -
2500
2000
1500
1000
500 -
0.12
FREQUENCY, CYCLES PER HOUR
ROTARY SPECTRUM
400 METERS AT LUPINE. 6 MAR 74 TO 6 APR 74. TAPE 486/16
10000 -
8000 -
6000 -
4000 -
2000 -
0
-0 12
•
0.10
-0.08
-0.06
-0.04
-0.02
0
CYCI
0.02
l'ER HOUR
0.04
0.06
0.08
0.10
0.12
103
1974 JOINT I Installation
FOREST FERN
Position: 21°36.3'N, 17°46.0'W
Depth of Water: 788 m
Set at 1200 GMT 24 March 1974 by R/V GILLISS
Retrieved at 1335 GMT 19 April 1974 by R/V OCEANOGRAPHER
Data Interval: 2132 GMT 24 March to 0832 GMT 19 April
Instrumentation
Intended Depth
0
20
60
100
150
200
300
400
m
m
m
m
m
m
m
m
RCM4 Serial No./Tape No.
D72/17
686/16
689/12
498/20
454/24*
455/25
500/24
456/26*
Data were recorded every 10 minutes. With the exception
of the 400 m instrument in which the direction sensor
failed, all subsurface instruments recorded current
speed, direction and temperature. Pressure was measured
by the 20 m, 60 m and 100 m instruments. Salinity data
were obtained only from the 20 m and 60 m machines.
104
FOREST FERN
0 m
MIN
N
MEAN
S.D.
SKEW
KURT
MAX
6.5
2.6
-0.3
1.7
11.1
1.2
388
U (cm/sec)
-0.7
3.4
-0.1
1.7
5.3
-8.8
388
V (m/sec)
-4.8
3.8
0.7
2.5
5.6
-10.6
388
T Air (C)
17.4
0.6
0.1
2.5
19.1
15.9
388
T Water (C)
17.5
0.3
0.5
2.7
18.7
16.7
388
S (m/sec)
20 m
S (cm/sec)
24.4
7.3
-0.2
3,4
45.1
2.3
612
U (cm/sec)
-0.6
19.5
0.0
1,8
39.4
-36.9
612
V (cm/sec)
-9.1
13.6
0.5
2.6
28.7
-36.2
612
T Water (C)
17.6
0.2
-0.2
2.3
18.2
17.1
612
1.7
0.1
1.3
4.8
1.9
1.6
612
3.64
36.24
35.85
612
P (10
5
2
n/m )
Sal (PPT)
36.05
0.07
-0.63
60 m
S (cm/sec)
19.3
5.8
0.2
3.1
36.3
2.1
612
U (cm/sec)
5.5
13.1
-0.3
2.3
35.0
-27.0
612
V (cm/sec)
-8.6
11.5
0.7
3.0
24.7
-34.2
612
T Water (C)
17.1
0.3
-0.9
3.7
17.8
16.1
612
5.8
0.0
0.6
2.7
5.9
5.7
612
36.14
0.07
-0.74
3.54
36.32
35.88
612
P (10
Sal
5
2
n/m )
(PPT)
100 m
S (cm/sec)
15.7
6.1
0.4
3.3
36.7
1.0
612
U (cm/sec)
5.9
9.4
-0.1
3.0
32 7
-23.8
612
V (cm/sec)
-8.1
9.7
0.6
2.9
22.7
-30.1
612
T Water (C)
16.6
0.4
-0.4
2.9
17.5
15.1
612
P (10 n/m)
9.9
0.0
1.1
4.1
10.1
9.9
612
105
FOREST FERN
150 m
MAX
MIN
N
MEAN
S.D.
SKEW
KURT
S (cm/sec)
13.7
5.3
0.5
3.0
31.6
2.1
612
U (cm/sec)
4.7
8.4
-0.2
2.7
26.9
-25.7
612
V (cm/sec)
-7.0
8.7
0.6
2.7
19.5
-25.5
612
T Water (C)
15.9
0.4
-0.6
3.7
17.1
14.4
612
200 m
S (cm/sec)
12.3
5.0
0.6
3.4
30.2
1.3
610
U (cm/sec)
4.3
8.1
-0.1
2.8
27.6
-19.0
610
V (cm/sec)
-5.9
7.7
0.4
2.8
18.5
-26.2
610
T Water (C)
15.2
0.5
-0.2
2.4
16.5
13.8
610
300 m
S (cm/sec)
10.2
4.8
0.6
3.2
27.7
0.3
610
U (cm/sec)
2.5
7.2
-0.0
2.6
25.7
-15.8
610
V (cm/sec)
-2.7
7.8
0.2
2.8
20.5
-24.5
610
T Water (C)
13.2
0.5
0.1
2.9
14.6
12.0
610
3.2
13.0
10.5
610
400 m
T Water (C)
11.8
0.4
-0.1
106
WIND V (SFC) D7217.1"
107
19.0
17.0
AIR TEMPERATURE D2217.LP
17.5
17.0 _
0000
25 MAR
taJ
16.5
I 974
1----1-.
I
I APR
5
FIII-FFI
t
1
►
WATER TEMPERATURE t OM) 07212.LP
108
U (60 M) C68912.LP
40 _
c.)
k,
In
■
0
20 —
_
0
1
N
1 1- i
- 20 —
U (100 M) C49820.LP
U (150 M) C45424.LP
Lt
109
20
WU
0 --
1
U
—20
—40
U
U
V (20 M) C68616.LP
20
—20
—40
(..)
W
1/3
■
r
c..)
20 _
0
—20
0
4-11 1
4\04
V (100 M) C49820.LP
U
tu
in
20
0
U
—20
V (150 M) C45424.LP
U
to
U
20
0
—20
V (200 M) C45525.LP
U
20
0
—20
V
AiM
r r r 1 i
110
18.5
U
18.0
LI 17.5
17.0
WATER TEMPERATURE (20 M) C68616.LP
18.0
17.5
U
17.0
tj 16.5
a
16.0
WATER TEMPERATURE (60 M) C68912.LP
18.0 17.5
17.0 _
16.5 16.0 _
L" 15.5 _
tu
15.0
0000
25 MAR
10
APR
WATER TEMPERATURE (100 M) C49820.LP
15
20
111
17.5
17.0
16.5
16.0
15.5
If
1-111F-1-1---1141flt
It
tit 1-6--1-4-1
WATER TEMPERATURE (150 M) C45424.LP
16.5
16.0 .1.
15.5
15.0
WATER TEMPERAIURE (200 M) C45525.LA
112
15.0
14.5
14.0
13.5
13.0
12.5
111 12.0
WATER TEMPERATURE 0300 MJ C50024.LP
iti
1
1
1
4
1
1
4
4
1
1
1
1
1
1
WATER TEMPERATURE (400 M) C45626.LP
2.00
1.75
1.50
1
11111
1
113
6.00_
5.25
0
Ir4
r-A--Lev
5,50
PRESSURE (60 M) C68912.LP
•••
z
„,
0
10.25
10.00
9.25
PRESSURE 1100 M) C49820 .LP
r-
SALINITY t20 M) C68616 .LP
36.50.
36.25
2
36.00
8
35.25
a.
0000
35.50
a.
a_
25 MAR
1
APR
5
10
15
20
1114f1141111111114-1111111f4
1974
SALINITY t60 Ml C68912.LP
WINO AT FOREST FERN. 16.2 DAYS STARTING 1853 24 MARCH 74
25
-25
-25
25
50
75
100
125
-25
-25
-25
-50
-50
-75
-100
-100
-125
-125
-150
-150
-175
-175
-200
-200
60 METERS AT FOREST FERN. 25.5 DAYS STARTING 2129 24 MAR 74
100 METERS AT FOREST FERN. 25.5 DAYS STARTING 2119 24 MAR 74
-20
-25
-20
--80
-100
-120
-140
150 METERS AT FOREST FERN. 25.5 DAYS STARTING 2125 24 MAR 74
200 M AT FOREST FERN. 25.4 DAYS STARTING 2125 24 MARCH 74
117
The windspeed sensor malfunctioned intermittently
and it was necessary to replace hundreds of speeds
during the first 9 1/2 days of the installation by
interpolated values. Because of the probable
effect of this on the spectrum, no current spectrum
were computed.
OC
(i3
LI
O
L.
ROTARY SPECTRUM
118
20 METERS RT FOREST FERN. 24 MARCH 74 TO 19 APRIL 74. TAPE 686/)6
30000
-
25000
20000
15000
CI
a
10000
UI
5000
0
I.-,
-0 12
-0.10
-0.08
-0.06
-0.04
-0.02
0.02
0
0.04
0.06
0.08
FPLOUENU, NUT; PLR HOUR
ROTARY SPECTRUM
- 60 METERS AT FOREST FERN. 24 MAR 24 TO 19 APR 24. TAPE 689/12
16000 -
14000 -
12000 -
10000 -
8000 -
6000 -
4000
2000
0
0.02
FREQUENCY, CYCLES PER HOUR
0.04
0.06
0.08
0.10
0.J2
ROTARY SPECTRUM
100 METERS AT FOREST FERN. 24 MAR 74 TO 19 APR 74. TAPE 498/20
7000 -
6000 -
5000 -
4000 -
3000
2000
1000 -
-4
•
-4
-4
-0 12 --0.10 --0.08 -0.06 -0.04 -0.02
0
FREQUENCY. CYCLES PER HOUR
ROTARY SPECTRUM
150 METERS AT FOREST FERN. 24 MAR 74 70 19 APR 74..TAPE 454/24
7000 -
6000 -
5000 -
4000 -
3000 -
2000 -
1000 -
0
0.02
FREOUENCY, CYCLES PER HOUR
0.04
0.06
0.08
119
ROTARY SPECTRUM
200 M AT FOREST FERN. 24 MAR 74 TO 19 APR 74. TAPE 455/25
120
6000 -
5000 -
4000 -
3000 -
2000 -
1000 -
_
4**47.444.44144.66,_4
__
0.08
0.10
0.12
0.10
0.12
F REQUENCY , NCI ES PER HOUR
ROTARY SPECTRUM
300 M AT FOREST FERN. 24 MAR 74 TO 19 APR 74. TAPE 500/2,
5000 -
4000 -
3000 -
2000 -
1000 -
0
0.02
FREQUENCY, CYCLES PER HOUR
0.04
0.06
0.08
122
1974 JOINT I Installation
FOXGLOVE
Position: 21°40.5'N, 17°57.2'W
Depth of Water: 1200 m
Surface buoy set at 1400 GMT 7 March 1974 by R/V GILLISS
Subsurface moorings set at 0721 GMT 17 March 1974 by R/V GILLISS
Retrieved at 1036 GMT 6 April 1974 by R/V GILLISS
Data Interval: 0721 GMT 17 March to 0121 GMT 6 April
Instrumentation
Intended Depth
0
18
30
50
75
100
150
200
m
m
m
m
m
m
m
m
300 m
400 m
RCM4 Serial No./Tape No.
D124/9
911/1
912/1
914/1
915/1
790/1
791/1
453/26
917/1 (flooded)
990/1
910/1
792/1
Data were recorded every 10 minutes. The surface buoy
was set on 7 March, but the subsurface instruments were
not installed until 17 March due to inclement weather.
All subsurface meters recorded temperature, current
speed and direction except the 250 m instrument which
was flooded. Pressure sensors failed on the 50 m, 75 m
and 200 m instruments. On the 500 m instrument, the
speed rotor apparently stalled for about a day and a
half, starting near 1200 hours 2 April. But it produced g ood speeds both before and after this malfunction. The surface buoy measured air and water
temperature.
123
FOXGLOVE
0 m
MAX
MIN
2.6
19.0
15.9
705
3.1
18.5
17.0
705
MEAN
S.D.
SKEW
KURT
T Air (C)
17.5
0.6
0.2
T Water (C)
17.5
0.3
0.8
18 m
S (cm/sec)
26.0
6.8
-0.4
3.4
42.3
4.2
481
U (cm/sec)
4.3
21.0
-0.5
1.8
35.5
-41.7
481
V (cm/sec)
5.4
15.3
-0.3
2.1
37.3
-29.6
481
T Water (C)
17.8
0.2
0.5
2.4
18.2
17.5
481
P (10 n/m)
1.2
0.1
0.5
2.8
1.5
1.0
481
30 m
S (cm/sec)
25.2
5.5
-1.1
5.5
36.0
1.9
475
U (cm/sec)
8.3
19.8
-0.8
2.2
34.9
-35.9
475
V (cm/sec)
3.6
13.8
-0.2
2.2
31.2
-27.1
475
T Water (C)
17.5
0.2
-1.6
6.8
18.0
16.6
475
2.5
0.1
0.4
3.2
2.7
2.4
475
P (10 n/m)
50 m
S (cm/sec)
22.0
5.0
-0.6
4.5
34.4
3.4
481
U (cm/sec)
9.7
17.0
-0.9
2.5
34.0
-31.1
481
V (cm/sec)
0.9
11.1
-0.1
2.2
24.0
-24.3
481
17.3
0.3
-1.0
2.6
17.8
16.5
481
T Water (C)
75 m
S (cm/sec)
18.6
5.2
0.0
4.0
36.1
2.1
481
U (cm/sec)
11.2
13.0
-1.0
3.2
36.1
-23.7
481
V (cm/sec)
-0.1
8.9
-0.0
2.2
20.5
-19.4
481
T Water (C)
16.9
0.4
-0.2
1.9
17.6
15.7
481
124
FOXGLOVE
100 m
MAX
MIN
N
MEAN
S.D.
SKEW
KURT
S (cm/sec)
16.6
5.4
0.7
3.8
35.3
2.5
481
U (cm/sec)
11.9
10.5
-0.9
3.8
35.2
-19.9
481
V (cm/sec)
-1.6
7.1
0.1
2.5
20.7
-18.6
481
T Water (C)
16.5
0.4
-0.6
3.3
17.6
15.2
481
P (10 n/m)
9.6
0.1
0.8
3.2
9.8
9.4
481
150 m
S (cm/sec)
13.3
3.9
0.4
3.4
27.2
2.8
481
U (cm/sec)
9.7
7.5
-0.9
3.6•
26.4
-12.9
481
V (cm/sec)
-2.1
6.2
0.3
2.3
14.3
-16.8
481
i: Water (C)
15.5
0.7
-0.3
1.7
16.7
13.9
481
P (10 n/m)
15.2
0.1
0.6
3.5
15.5
15.1
481
200 m
S (cm/sec)
10.8
3.4
0.0
3.2
23.4
1.0
481
U (cm/sec)
7.0
6.2
-0.7
3.0
23.2
-11.8
481
V (cm/sec)
-2.4
5.8
0.2
2.2
14.3
-16.2
481
T Water (C)
14.8
0.5
0.3
1.9
16.2
13.9
481
300 m
(cm/sec)
10.4
3.6
0.2
2.5
19.9
1.0
481
U (cm/sec)
4.6
6.7
-0.6
2.9
17.9
-16.1
481
V (cm/sec)
-1.3
7.3
0.3
2.5
19.9
-18.5
481
T Water (C)
13.1
0.4
0.3
2.7
14.2
12.3
481
P (10 n/m)
30.0
0.0
1.5
3.4
30.1
30.0
481
125
FOXGLOVE
400 m
MEAN
S.D.
SKEW
KURT
MAX
MIN
N
S (cm/sec)
9.8
4.1
0.6
3.1
23.5
1.0
481
U (cm/sec)
2.7
6.3
-0.2
2.6
18.0
-15.5
481
V (cm/sec)
-1.0
8.0
-0.2
2.4
23.5
-22.0
481
T Water (C)
12.1
0.4
0.1
2.7
13.0
11.1
481
P (10 n/m)
40.2
0.1
0.8
3.3
40.4
40.1
481
500 m
S (cm/sec)
10.5
7.0
-0.7
1.8
26.5
0.4
388
U (cm/sec)
1.1
6.8
-0.1
2.3
16.8
-14.8
388
V (cm/sec)
-1.0
9.2
-0.2
2.4
20.4
-24.7
388
T Water (C)
10.5
0.4
0.6
2.9
11.6
9.7
481
P (10 n/m)
49.8
0.0
0.3
2.8
49.9
49.7
481
126
18.0
U
1-
16.0
AIR TEMPERATURE 01249.LP
18.5 _
U
18.0
tn
u 17.5
tlAi
w
0000
4-1
17.0
I8MAR
1974
25
1
APR
5
WATER TEMPERATURE (0 M) 01249.LP
10
15
127
U (18 M) C9111 .LP
40
U
20
U (30 M) C9121 .LP
40
20
U
0
-20
-40
40
U
NYr.
U
20
0
-20
40
L.)
20
r
U
9
(Li
-20
1 APR
128
U
20
113
0
-20
U (200 M) C45326.LP
20
0
-20
U (300 MI C9901.LP
20
0
-20
U (400 MI C9101.LP
20
5
0
-20
40
20
0
-20
40
20
0
-20
V (30 M) C9121.LP
U
20
ta
U
0
-20
1 974
V (50 M) C9141.LP
I APR
129
20
5
0
-20
20
0
-20
U
r
20
0
-20
U
U
V (150 M) C7911.LP
20 _
0
-20
V (200 M) C45326.LP
20
0
-20
U
U
20
0
-20
V (400 M) C9101.LP
U
20
ILL
N
0
-20
130
U
18.5
LI 18.0
5
1L4
O
17.5
1111111111111
111111
WATER TEMPERATURE (18 M) C9111.LP
18.0.
U
17.5
17.0
16.5
WATER TEMPERATURE (30 M) C9121.LP
18.0
17.5
U
17.0
16.5
WATER TEMPERATURE (50 M) C9141.LP
18.0
17.5
17.0
U
16.5
16.0
15.5
WATER TEMPERATURE 175 M) C9151.LP
131
18.0
17.5
17.0
16.5
WATER TEMPERATURE 1100 M) C7901.0
17.0
16.5
16.0
15.5
15.0
U
w
14.5
14.0
13•5
0000
1M MAR
25
APR
1
1974
WATER TEMPERATURE (150 M) C7911.LP
132
16.5
16.0
15.5
15.0
14.5
14.0
13.5
1111-11111
1
111
1111IF A
WATER TEMPERATURE (200 MI C45326.LP
13.0 _
as
ta
12.5
12.0
1
1
I
1
1
1
1
I
11111111ti
WATER TEMPERATURE (300 MI C9901.LP
13.5
13.0
12.5
1974
1APR
WATER TEMPERATURE (400 M/ C9101.LP
133
12.0
11.0
4IlitI
WATER TEMPERATURE (500 MI C7921.LP
PRESSURE (18 M/ C9111.LP
47
2.75
z
in
2.50
0
tr.
2.25
PRESSURE (30 Ili C9121.LP
10.00 _
.-. 9.75
el
Z
to
0
*4
9.50
;24..
9.25
144
0000
111 MAR
I' 1
1974
l
1
1
jfill°
I
29
APR
IIFIIIIIIIIIIIII
PRESSURE (100 MI C7901.LP
134
PRESSURE (150
Ml C7911 .LP
•-• 30.25 _
N
z
tr,
30.00
--twatt_._jtati
29.75
Itt1-1111 FM1'11111111
PRESSURE (300 Ili C9901 . LP
(.4
40.50
IAz0 40.25
40.00
PRESSURE (400 Ml C9101.LP
50.00T
toz0 49.75
a.
49.50
0000
18 MAR
23
A PR
1974
PRESSURE (500 11: C7921
.LP
135
80
-4 0
-40
30 M AT FOXGLOVE. 19.2 DAYS STARTING 0721 17 MARCH 74
-30
18 M AT FOXGLOVE.
30
60
90
20 DAYS STARTING 0151 17 MARCH 74
120
150
136
-35
100 M AT FOXGLOVE. 20 DAYS STARTING 0151 17 MARCH 74 GMT
75 M AT FOXGLOVE. 20 DAYS STARTING 0152 17 MARCH 74 GMT
-40
-40
--40
50 M AT FOXGLOVE. 20 DAYS STARTING 0151 17 MARCH 74 GMT
137
-15
300 M AT FOXGLOVE. 20 DAYS STARTING 0146 17 MARCH 74 GMT
20
-60
200 M AT FOXGLOVE. 20 DAYS STARTING 0153 17 MARCH 74 GMT
150 M AT FOXGLOVE. 20 DAYS STARTING 0153 17 MARCH 74 GMT
138
500 METERS AT FOXGLOVE. 16.2 DAYS STARTING 0131 12 MAR 74
18
-9
9
18
27
36
400 A AT FOXGLOVE. 20 DAYS STARTING 0147 17 MARCH 24 GMT
45.
54
ROTARY SPECTRUM
18 METER5 AT FOXGLOVE. 16 MAR 74 TO 6 APR 74
139
T APE 9II/1
1 0000
8000
6000
4000
OC
a
2000
0
FREQUENCY. CYCLES PER HOUR
ROTARY SPECTRUM
30 M AT FOXGLOVE. 17 MAR 74 TO 6 APR 74. TAPE 912/1
10000 -
8000 -
6000 -
4000 -
2000 -
4--
4
-0 12 -0.10
-0.08 -0.06
-0.04
-0.02
4
4
0
0.02
ERFOU1NCY, MI ES PER HOUR
4 r444
-4-- "- 4
0,04
0.06
0.08
0.10
0.12
ROTARY SPECTRUM
140
50 N AT
rowovE.
16 MARCH 24 TO
6
APRIL )4. T AP1 914/1
10000 -
6000
-
6000 -
4000 -
2000 -
0.02
0
0.04
0.06
0.08
0.10
0.12
FREQUENCY, CYCLES PER DAY
ROTARY SPECTRUM
75 M AT .• OXCLOVE. 16 MARCH 74 TO 6 APRIL 74. TAPE 915/1
8000
6000
4000
2000
1
....*4.42thmestet.
4
-0 12
-0.10
-0.08
-0.06
-0.04
CR1
0
-0.02
01)
NCY
,
It(
I
0.02
11 1'l R fifYY
-0.04
0.06
0.08
0.10
0.12
ROTARY SPEC1RUN
100 M Al FOXGLOVE.
16 MAR 74 TO c fl"R 74. Tnp f.: 290/1
5000
4000
3000
2000 -
1000 -
FREQUENCY, CYCLES PER HOUR
ROTARY SPECTRUM
150 M AT FOXGLOVE. 16 MAR 74 TO 6 APR 74
2500 -
2000 -
1500 -
1000 -
1 1'1 ()tit.
Y
(1. 11
f b
r'l
HOL:r.!
TAPE 791/1
141
ROTARY SPECTRUM
200 M AT FOXGLOVE. 16 MARCH 74 TO 6 APRIL 74. TAPE 453/26
142
3000 -
2500 -
2000 -
1500 -
FREQUENCY, CYCLES PER DAY
ROTARY SPECTRUM
300 M AT FOXGLOVE. 16 MAR 74 TO 6 APR 74. TAPE 990/1
5000 -
4000 -
3000 -
2000 -
1000
0
-
`t14.1
,t-t.tttle2-ete
-0 12
-0.10
-0.08
-0.06
-0.04
-0.02
0
FPI OUt NCY , CY(.1
411":"'.....111
0.02
PLP t-1C)UP
0.04
'0.06
4
0.08
vti.+44.4.4.......1
0.10
0.12
PO1MPY
400 M OT 10TIGLOVC. 16 MAR 14 '0 6 O P R 24, 'R P F 2i021
143
8000 T
6000
4000
2000
0
.1
0
0
.12
FREQUENCY, CYCLES PER HOUR
ROTARY SPECTRUM
500 METERS AT FOXGLOVE 16 MAR 74 TO 2 APR 74. TAPE.792/1
10000 -
8000 -
6000 -
4000 -
2000 -
p
-0 12
-0.10
-0.08
-0.06
,r • • , ,
-0.04
-0.02
0
f PEOUCt1CY CYCI
0.02
Ea;
4--
•.14.11.-4
0.0.'1
0.06
0.08
0.10
0.12