'p
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Unbound issue
Does not circuFate
856
.07
no.157
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Current Meter Data Report
199
1993
Property of
OREGON STATE UNIVERSITY
Library Serials
Corvallis, OR 97331-4503
C7
1
Benguela Source and Transport Project (BEST):
Current Measurements off the Coast of South Africa.
WOCE ACM-4.
0
1
June 1992 - October 1993
1
t
by
R. Dale Pillsbury, J.M. Bottero, G Pittock, D.C. Root,
J. Simpkins III and R. E. Still
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National Science Foundation
OCE-9116922
Data Report 157
Reference 94-3
November 1994
J
College of Oceanic and Atmospheric Sciences
Oregon State University
Corvallis, Oregon 97331
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Cover Photo: Anthony Martino
Lamont-Doherty Earth Observatory
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of Columbia University
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Table of Contents
Introduction .........................................................................................1
Sampling and Processing Information ................................................1
Data Presentation ................................................................................ 3
Acknowledgments .............................................................................. 4
References ........................................................................................... 4
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Data Presentation
BEST
1 .......................................................................................... 5
BEST
2 .......................................................................................... 19
BEST
3 .......................................................................................... 35
BEST
4 .......................................................................................... 51
Figure 1. Location of Instrumentation, Benguela Source and Transport Project.
10°
5°
0°
0
O
Q
-30 °
A
BEST-4
0
o
e
1
d
r-1
B
0
'
20°
150
-30°
T-3
BE
-2
T
B
o
0
0
O
°
o
O
OO
-35 °
-35 °
XBT Launch
c
°
DIES Stations
o
CO
' o,, .
°
AO>
o o
A CTD Deployments
CM Moorings
o
''
b
a
A.
:C/
0
0 Pressure Gau ges
CHIRP
0°
GMT Jun 1614:05
5°
100
150
20°
INTRODUCTION
1
The BEST (Benguela Source and Transport) project was designed to investigate the form
of the Benguela Current and ratio of the Aguhlhas Current and South Atlantic Current
source waters masses. The transport of the Benguela Current and its variability was
measured by a moored array of instruments, inverted echo sounders (IES), inverted echo
sounders with pressure gauges (PIES), current meter moorings, and hydrographic surveys
as wells as analysis of the TOPEX/POSEIDON satellite altimeter data. This report
presents data from the current meter moorings.
a,
The BEST mooring array was deployed in June 1992 and recovered in October 1993. The
array consisted of 4 subsurface moorings laid off the West Coast of Africa along 30°
South. Figs 1 & 2.
BEST objectives contribute to the WOCE International plan. The 30° S mooring array is
a
1
identified by WOCE as ACM-4.
SAMPLING AND PROCESSING INFORMATION
All moorings were instrumented with Aanderaa RCM 8 current meters (equipped with RCM-5
1
Savonius rotors and vanes) to record speed, direction, and temperature, with some meters
equipped to record pressure.
The current meter recording interval was set to 60 minutes. During the recording interval the
number of rotor revolutions and compass directions are sampled 50 times. The combined data
represents a current vector, its magnitude given by the rotor revolutions and its direction by the
compass reading. The vector is resolved into two components, East-West and North-South.
Successive components are added and intermediately stored. When the selected recording
interval has elapsed, the resulting average vector and its angle are calculated and recorded
(Aanderaa Instruments, 1990).
The nominal threshold of the Savonius rotor on the OSU Buoy group Aanderaa current
J
meters is 1.86 cm/sec. In processing, a zero in the speed sensor is set equal to 0.93
cm/sec, i.e., half the threshold. Temperature, and pressure are instantaneous
measurements at the end of the sample interval.
Data from the current meter data storage units are stored binary numbers in the range [0,
4
1023] and each data record is assigned a time in Universal Coordinated Time (UCT).
This product is known as the dated raw file. The sensors are routinely calibrated before
and after deployment. The dated raw file, together with the calibration information, is
1
N
1
0
1000
12
L
10
3
14
13
°E
15
4
2000
4000
5000
BEST 3
BEST 4
6000
I I
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1400
I
1200
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1000
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I
800
I
600
I
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400
Kilometers
Figure 2. BEST Instrument Array -30° South.
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200
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3
1
then processed into metric units. Smith, et al. (1986) reviewed the calibration procedure
used by the OSU Buoy Group with Aanderaa current meters. To form the LLP (6-hourly)
records, the hourly records were filtered with a 60 + 1 + 60 point Cosine-Lanczos filter
with half-amplitude at 40 hours and half-power at 46.6 hours. The data are then
resampled at 6-hour intervals.
Depths were obtained by one of two methods. Meters equipped with pressure sensors were
assigned depths corresponding to the minimum pressure recorded. The minimum pressure was
determined from unfiltered data. Conversion from pressure units to depth units, i. e. from
decibars to meters, was done with a relationship developed by Professor J. L. Reid of Scripps
Institution of Oceanography:
Z(m) = (0.992446)P - (2.28717x10-6)P2 + (2.08213x10-11)p3
J
This equation is based on a world average density profile. The depths of meters that did not
have pressure sensors were estimated from those that did using the mooring line lengths as
determined by a computer model that calculates line tension and the amount of stretch. Again,
minimum rather than average or maximum depths were estimated. Bottom depth was
calculated from the line lengths between the deepest instrument and the anchor.
Occasional problems appear in the data as isolated spikes, absence of data, or short runs of
unexplainably erratic data. Problem areas of only a few cycles were corrected by linear
1
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interpolation; those longer than a few hours were bridged. The bridging technique employs
Anderson's (1974) algorithm for a predictive filter which utilizes the spectral characteristics on
both sides of the gap (Smylie et al. 1973; Ulrych et al. 1973). All corrections to the data are
noted on the header pages at the beginning of each mooring section.
DATA PRESENTATION
Each of the current meter records is described in this report. The descriptions include
start times and stop times, statistics for each variable, frequency histograms and spectra,
and some representative time series plots of the velocity, temperature, and pressure
ii
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observations.
The data are organized by mooring location. Each section begins with a mooring diagram
followed by a header page showing information about the mooring, start and stop times for data
and comments about the quality of each record. Any deletions or corrections to the data are
listed here.
41
4
The page of statistics gives the mean, variance, and extrema for speed (s), eastward (u) and
northward (v) components of the current, temperature (T), and pressure (P). Statistics for both
unfiltered and filtered (LLP) information are provided.
r
The presentation of the hourly unfiltered data begins with progressive vector diagrams,
histograms, and kinetic energy spectra. The progressive vector diagrams are obtained by placing
the velocity vectors tail-to-head to show the path that a particle would travel in a perfectly
homogeneous flow. The squares mark the beginning of each month. The histograms of speed,
direction, temperature, and pressure show the frequency of occurrence versus amplitude.--LLP
filtered data are presented next as time series plots. There are two series of plots for each
current meter mooring: all variables (velocity vectors, u, v, temperature, and pressure) at each
depth on the mooring, and each variable at all depths.
ACKNOWLEDGMENTS
The funds for this program were provided via grant OCE-9116922 from the National Science
Foundation, Physical Oceanography Program which is gratefully acknowledged. We appreciate
the assistance and cooperation given by the masters and crews of the R/VAfricana and RIV
Maurice Ewing, and by our seagoing colleagues and companions on the deployment and
recovery cruises.
REFERENCES
Aanderaa Instruments. Technical Description No.159, RCM 7&8, Recording
Current Meter, Aanderra Instruments, Bergen, Norway.
Anderson, N., 1974. On the calculation of filter coefficients for maximum entropy"
spectral analysis. Geophysics 39:69-72.
t
1
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Smith, R. L., G. Pittock, J. Fleischbein and R. Still. 1986. Current measurements
from moorings off Northern California: September 1984 - July 1985. Oregon
State University, College of Oceanography, Corvallis. Data Report 121,
Reference 86-6.
Smylie, D. E., G. K. C. Clarke and T. J. Ulrych. 1973. Analysis of irregularities in
the earths rotation. Methods in Computational Phys. 13., 391-430.
Ulrych, T. J., D. E. Smylie, O. G. Jensen and G. K. C. Clarke. 1973. Predictive
filtering and smoothing of short records by using maximum entrophy. J.
Geophys. Res. 78,4959-4964.
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Mooring BEST-1
1
37" Steel Sphere s/n 2604
2 m 1/2" Chain
25 m3/16"JWR
215m 0 1964
1
Aanderaa RCM-8
Jun 1992
Recovered: 26 Oct 1993
Installed:
30° 26.65' S
Longitude: 14° 42.53' E
Latitude:
292 m 3/16" JWR
J
6 -17" Glass Spheres
520 m
LI
5858
18
Aanderaa RCM-8
475 m 3/16" JWR
4 -17" Glass Spheres
2 m 3/8" Chain
DACS 723A Release
15 m 5/8" Nylon
1035m
6
Mooring BEST-1.
Position:
30° 26.65' S
14° 42.53' E
Depth of Water:
1035m
Mooring Set:
0927 U.C.T. 18 June 1992
Mooring Retrieved: 0524 U.C.T. 26 October 1993
Data Interval:
1100 U.C.T. 18 June 1992 - 0500 26 October 1993
Instrumentation:
Depth m.
215m
520m
RCM8 Serial No./Sequence No.
1964/53
5858/15
a
Instrument 1964 recorded speed, direction, temperature, and pressure every 60 minutes
until the instrument was recovered. The data record was completely clean.
Instrument 5858 recorded speed, direction, temperature, and pressure every 60 minutes.
Due to an apparent battery failure the last good record in all parameters was recorded at
1902 U.C.T. 23 October 1993. Otherwise there were no problems with the record.
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Statistics, BEST 1. Hourly Unfiltered Data
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215 meters at Best-1. 1100 18 Jun 92 - 0500 26 Oct 93. Tape 1964/53.
Speed, cm/sec
U, cm/sec
V, cm/sec
Temp, deg c
Pressure, db
min
mean
max
sd
num
0.93
-45.84
-34.74
13.12
-2.23
6.33
47.73
28.07
39.36
7.15
10.33
8.47
11875
11875
11875
9.43
218.48
11.42
219.30
12.94
220.63
0.66
0.29
11875
11875
520 meters at BEST-1. 1102 18 Jun 92 - 1902 23 Oct 93. Tape 5858/15.
a
min
mean
max
sd
num
Speed, cm/sec
U, cm/sec
V, cm/sec
0.93
-38.77
-31.41
39.37
25.72
35.60
4.98
7.00
6.76
11817
11817
11817
Temp, deg c
Pressure, db
4.79
523.02
8.73
2.52
-0.16
.6.08
7.68
525.21
0.43
0.31
11817
11817
523.92
Statistics, BEST 1. LLP Filtered 6-hourly Data
1
215 meters at Best-1. 1200 19 Jun 92 - 0000 25 Oct 93. Tape 1964/53.
min
mean
max
sd
num
10.48
-2.22
V, cm/sec
0.15
-21.43
-9.35
28.35
21.42
22.59
5.65
8.03
5.69
1971
1971
1971
Temp, deg c
Pressure, db
9.73
218.95
11.42
219.30
12.87
0.63
0.17
1971
1971
Speed, cm/sec
U, cm/sec
6.32
220.13
520 meters at BEST-1. 1200 19 Jun 92 - 1200 22 Oct 93. Tape 5858/15.
i
1
4
min
mean
max
sd
num
Speed, cm/sec
U, cm/sec
V, cm/sec
0.14
-12.64
-8.97
5.72
2.53
-0.17
14.85
11.49
12.42
2.85
4.18
4.11
1961
1961
1961
Temp, deg c
Pressure, db
5.20
523.73
6.08
523.92
7.28
524.57
0.38
0.24
1961
1961
8
Mooring BEST 1. 18 Jun 92 - 26 Oct 93.
NT
T 3000 km
I.
a
1500
-1000
500 km
-500
215 mat BEST-1.
1-500
I.
f
I
" - it s U "OM we- i
. it -
215m at BEST-1. 18 Jun 92 - 26 Oct 93. Tape 1964/53.
,Mean
0.30
0.08
0.25
0.06
0.20
FL-
0.04
0.15
0.10
0.02
0.05
0.00
f
i
0
20
10
I
1====y
I
0.00
40
30
50
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, degrees true
Speed, cm per sec
,Mean
,Mean
0.16
0.90 T
0.14
0.80
0.12
0.70
0.60
0.10
0.50
0.08
0.40
0.06
0.30
0.04
0.20
0.02
0.00
9.25
0.10
I- I
9.75
10.25
10.75
I
11.25
I-F-I
11.75
I
12.25
Temperature, degrees C.
I-
I
12.75
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i
13.25
0.00
215.2
F
216.8
218.4
220.0
221.6
Pressure, decibars
I
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223.2
I
224.8
0
520m at BEST-1. 18 Jun 92 - 23 Oct 93. Tape 5858/15.
,Mean
0.06
0.50 T
0.05
0.40 +
S
0.04
0.30 t
F-Lri
0.03
0.20 t
r-
0.02 t
0.10 t
J-1
0.01 t
0.00
0.00
20
10
0
50
40
30
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, degrees true
Speed, cm per sec
,,Mean
,Mean
0.80
0.25 T
0.70
0.20 t
0.60
0.50
0.15 t
0.40
0.10 t
0.30
0.20
0.05 t
0.10
0.00
4.6
5.0
5.4
5.8
6.2
6.6
Temperature, degrees C.
7.0
7.4'
7.8
0.00
520.0
521.6
523.2
524.8
Pressure, decibars
526.4
528.0
- " r %W -= of - i
" m it - In mom mom i
Mooring BEST 1. Unfiltered current.
215m
520m
U)
C
0a)
W
Y
10-2
T
10
x
95 pct
-3
95 pct
10-3
10-3
10-2
10-'
100
101
Frequency, cycles per day
102
10-3
10-2
10-'
10°
101
Frequency, cycles per day
102
N
Velocity
40
30
U-component
20
10 \
0 EU
-10
-20
V-component
14.00
Temperature
12.00 U
a)
10.00 -o
8.00
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J
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A
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I
0
S
1992
-
I
I
N
D
I
J
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F
M'
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A
M
I
J
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J
A
I
S
1993
215m at BEST 1. LLP 6-hourly Data.
M%M
qwi MOr
0
W% M arm
I!r i *" M* M
- ir
25
20FT N
Velocity
- 5 F-
.14
-10 E
8.00
7.00
6.00
5.00
4.00
520
522
Pressure
524
526
528
J
J
A
0
S
1992
N
D
J
F
M
A
M
J
1993
520m at BEST 1. LLP 6-hourly Data.
J
A
S
0
T N
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J
J
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A
I
I
0
S
1992
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I
N
D
I
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J
F
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M
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A
M
I
J
1993
Velocity at BEST-1. LLP 6-hourly Data.
J
II
A
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S
0
40
30
20
10
I
J
J
I
A
I
S
1992
I
0
I
I
N
D
I
J
I
F
I
M
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A
I
M
I
I
J
J
1993
U-component at BEST-1. LLP 6-hourly Data.
I
A
] -20
I
S
0
V
J
J
A
S
0
N
D
J
F
1992
M
A
M
V
J
J
A
S
0
1993
V-component at BEST-1. LLP 6-hourly Data.
qp
in -*= me - mv
In m Pam* m M% m "I
15.0-:
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14.0
13.0 H
8.0 -
520m
7.0
6.0 5.0
4.0
3.0 2.0
J
J
A
S
0
N
D
J
F
M
A
M
J
1993
1992
Temperature, BEST-1.
J
A
S
0
210
215
p 220
225
515
230
520
525 p
530
535
J
J
A
S
0
N
D
J
F
A
M
J
J
1993
1992
Pressure at BEST-1
M
.
LLP 6-hourly Data.
A
S
0
19
Mooring BEST-2
1
37" Steel Sphere s/n 2602
2 m 1/2" Chain
50 m 3/16" JWR
1
210m
1244
Installed:
19 Jun 92
Recovered: 26 Oct 93
IAanderaa RCM-8
Latitude:
1
292 m 3/16" JWR
Longitude: 13 ° 13.79' E
Q 6 -17" Glass Spheres
515 m
0
1245
Aanderaa RCM-8
500 m 3/16" JWR
5 -17" Glass Spheres
J
500m3/16"JWR
4 -17" Glass Spheres
500 m 3/16" JWR
11
3 -17" Glass Spheres
500m3/16"JWR
2 -17" Glass Spheres
471 m 3/16" JWR
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6 3 -17" Glass Spheres
3020 m
0
4418
Aanderaa RCM-8
25m3/8"VLS
50 m 3/8" VLS
O 3 -17" Glass Spheres
Y
30° 16.88' S
2 m 3/8" Chain
DACS 723A Release
15 m 5/8" Nylon
3127m
20
Mooring BEST-2.
r
Position:
300 16.88' S
Depth of Water:
Mooring Set:
Mooring Retrieved:
Data Interval:
3127m
1316 U.C.T. 19 June 1992
1622 U.C.T. 26 October 1993
1500 U.C.T. 19 June 1992 - 1600 26 October 1993
13° 13.79' E
l
Instrumentation:
Depth m
RCM8 Serial No./Sequence No.
210m
515m
3020m
1244/51
1245/60
4418/55
Instrument 1244 recorded speed, direction, temperature, and pressure every 60 minutes
until the instrument was recovered. A problem occurred with the speed record. The speed
component went to and stayed at threshold for three major time periods and has been set
to null from:
0800 7 Jul 92 - 1200 5 Aug 92 (lines 426-1126) &
2100 9 Aug 92 - 0000 14 Sep 92 (lines 1231 - 2075) &
0000 23 Sep 92 to 1600 26 Oct 93 (lines 2289 to end of record.)
Instrument 1245 recorded speed, direction, temperature, and pressure every 60 minutes
until the instrument was recovered. The quality of the record was good. One point in the
direction record was interpolated.
a
11
r
r
Instrument 4418 recorded speed, direction, and temperature every 60 minutes until the
instrument was recovered. Three sections of the speed record were bridged. During these
periods the speed records went abruptly to and stayed at threshold.
1900 2 Jan 93 - 0800 9 Jan 93 (lines 4733 - 4890 &
1200 10 Jan 93 - 2300 12 Jan 93 (lines 4918 - 4977) &
0400 14 Feb 93 - 0200 15 Feb 93 (lines 5750 - 5722).
11
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Statistics, BEST 2. LLP 6-Hourly Data
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210 meters at BEST 2. 1800 20 Jun 92 - 1200 25 Oct 93. Tape 1244/51.
Speed, cm/sec
U, cm/sec
V, cm/sec
Temp, deg c
Pressure, db
min
mean
max
sd
num
9.14
-39.98
-13.51
11.05
17.88
-10.49
-2.90
12.45
40.94
5.24
20.96
14.63
9.05
12.62
11.13
99
99
99
210.84
213.49
240.42
0.66
3.64
1968
1968
515 meters at BEST 2. 1800 20 Jun 92 - 1200 25 Oct 93. Tape 1245/60.
min
mean
max
sd
num
9.59
-5.09
2.35
34.51
12.73
V, cm/sec
0.50
-25.41
-12.28
26.26
4.86
6.24
6.72
1968
1968
1968
Temp, deg c
Pressure, db
5.95
519.19
7.12
8.57
542.73
0.62
2.57
1968
1968
Speed, cm/sec
U, cm/sec
520.51
3020 meters at BEST 2. 1800 20 Jun 92 - 1200 25 Oct 93. Tape 4418/55.
Speed, cm/sec
U, cm/sec
V, cm/sec
Temp, deg c
min
mean
max
sd
num
0.09
-3.67
-9.28
2.20
0.82
-0.58
9.54
6.98
5.25
1.25
1.62
1.67
1968
1968
1968
2.38
2.43
2.50
0.02
1968
22
Statistics, BEST 2. Unfiltered Hourly Data
210 meters at BEST 2. 1500 19 Jun 92 - 1600 26 Oct 93. Tape 1244/5 1.
min
mean
max
sd
num
Speed, cm/sec
U, cm/sec
3.28
-42.11
V, cm/sec
-27.86
10.71
20.58
-11.86
-1.64
44.27
24.13
26.79
15.15
246.07
9.37
14.47
12.59
0.68
3.75
744
744
744
Temp, deg c
Pressure, db
210.49
12.44
213.49
11858
11858
515 meters at BEST 2. 1500 19 Jun 92 - 1600 26 Oct 93. Tape 1245/60.
min
mean
max
sd
num
Speed, cm/sec
U, cm/sec
V, cm/sec
0.93
-32.91
-26.91
11.55
39.37
30.14
37.01
6.14
-5.06
2.30
11858
11858
11858
Temp, deg c
Pressure, db
5.60
519.23
7.12
520.51
8.82
549.06
0.64
8.11
8.63
2.63
11858
11858
t
a
3020 meters at BEST 2. 1500 19 Jun 92 - 1600 26 Oct 93. Tape 4418/55.
Speed, cm/sec
U, cm/sec
V, cm/sec
Temp, deg c
min
mean
max
sd
num
0.26
-24.15
-18.33
5.04
0.82
-0.58
24.38
19.25
19.74
3.18
4.12
4.19
11858
11858
11858
2.35
2.43
2.52
0.02
11858
t
l
F
23
NT
Mooring BEST 2. 19 Jun 92 - 26 Oct 93.
1500 km
I
1000
500
1
500 km
515matBEST 2.
-500
a
T50km
-50
50
100
150
200
-50
1
-100
-150
i
I
-200
3020 m at BEST 2.
-250
-300
250
300
350
400 km
N
.P
210m at BEST-2. 19 Jun 92 - 26 Oct 93. Tape 1244/51.
0.10T
0.08 t
0.06 t
0.04 t
0.02
0.00
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, degrees true
,Mean
,j,Mean
0.90 T
0.30 T
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
11.5
12.5
13.5
Temperature, degrees C.
14.5
15.5
205
215
225
235
Pressure, decibars
245
255
515m at BEST-2. 19 Jun 92 - 26 Oct 93. Tape 1245/60.
Mean
0.40 T
0.08
0.30 t
0.06
0.20 t
0.04
0.10 +
0.02
0.00 1.
0.00
40
30
20
10
0
0
50
,
30
60
90
Speed, cm per sec
120 150 180 210 240 270 300 330 360
Direction, degrees true
,Mean
,Mean
0.80
0.14
I-I
0.12
0.70
0.60
0.10 t
0.50 t
0.08 t
0.40 t
n n5
U.3U
0.04
0.20
0.02
0.10
L-L
0.00
0.00
5.6
6.0
6.4
6.8
7.2
7.6
8.0
Temperature, degrees C.
8.4
8.8
9.2
518
522
526
530
534
538
Pressure, decibars
542
546
550
3020m at BEST-2. 19 Jun 92 - 26 Oct 93. Tape 4418/55.
,Mean
0.30
0.06 T
0.25
0.05
0.20
0.04
0.15
0.03
0.10
0.02
0.05
0.01 t
I
0.00
0
4
8
12
20
16
II
I
0.00
28
24
'
30
0
60
90
120 150 180 210 240 270 300 330 360
Direction, degrees true
Speed, cm per sec
,Mean
0.70
0.60
0.50
0.40
0.30
0.20
0.10
I-
0.00
2.2
I
2.3
I
i
2.4
I
I
I
2.5
Temperature, degrees C.
I
2.6
I
I
2.7
Mooring BEST 2. Unfiltered current.
515m
3020m
I
x
10-1
I
10-2
95 pct
10-3 i- rnmH
10-3
10"2
" ""' H I I I lill
10-1
100
101
Frequency, cycles per day
11 1 1 1 1 11;
103
1-
1
102
95 pct
104
10 "3
10-2
10.1
100
101
Frequency, cycles per day
102
60
50
40
30
20
TN
Velocity
10
0
-10
-20
U-component
40
30
20
V-component
CO
E
U
10
0
-10
-20
Temperature
Pressure
210
220
230
240
J
J
A
0
S
1992
N
D
J
F
M
A
M
J
1993
210m at BEST-2. LLP 6-hourly Data.
J
0
-20
30
0
20
10
E
U
0
-10
-20
510
520
530
540
550
J
A
0
S
1992
N
D
J
F
M
A
M`
J
1993
515m at BEST-2. LLP 6-hourly Data.
A
S
%
0
W
10
-I
TN
Velocity
.//
=0
10
-10
5 Ua)
0\
-5 0E
- -10
10
V-component
0
-5
-10
I
I
J
J
I
I
A
0
S
I
I
I
N
D
J
I
I
I
F
M
I
A
M
J
.1993
3020m at BEST-2. LLP 6-hourly Data.
1992
I
I
I
J
I
A
- 2.35
L
S
0
TN
40
1
30
20
10
0
-10
20
-20
0
I
I
J
J
I
A
0
S
1992
I
I
I
I
N
D
J
I
I
I
F
M
A
I
I
I
M
J
1993
Velocity at BEST-2. LLP 6-hourly Data.
I
I
J
A
1 -20
I
S
0
W
N
30
20
515m
10
\
0
-10
-20
-30
I
I
J
J
A
S
1992
0
I
I
I
I
I
N
D
J
F
I
I
I
1
M
A
I
M
J
J
1993
U-component at BEST-2. LLP 6-hourly Data.
A
1 -20
I
I
I
1
S
0
40
30
[n t
515m
20
10
0
fjvql
-10
-20
v V-V -vwr-V- -,
I
J
J
I
I
I
A
S
1992
0
I
I
I
N
D
I
J
I
I
F
M
I
A
I
M
I
I
J
J
1993
V-component at BEST-2. LLP 6-hourly Data.
I
I
A
S
0
W
.P
15.0 t
14.0
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
-:
13.0
12.0
11.0 H
10.0 H
9.0 H
8.0 7.0 6.0 5.0
4.0 H
3020m
3.0
2.0
--1
J
J
A
S
0
N
D
J
F
M
A
M
J
J
A
S
0
1993
1992
Temperature, BEST-2.
" M w 00 ow *mom 0% - " - " M
rte.
"c %M
4
35
r
I
7205.m
01
Mooring BEST-3
41" Steel Sphere s/n 483
2 m 1/2" Chain
50 m 3/16" JWR
682
Installed:
Recovered: 28 Oct 93
IAanderaa RCM-8
292 m 3/16" JWR
Latitude: 29° 59.43'S
Longitude: 08° 49.78'E
6 -17" Glass Spheres
J
505 m
LI
684
Aanderaa RCM-8
500 m 3/16" JWR
t
2 -17" Glass Spheres
500 m 3/16" JWR
J
2 -17" Glass Spheres
500 m 3/16" JWR
2 -17" Glass Spheres
500 m 3/16" JWR
2 -17" Glass Spheres
25 m 3/16" JWR
450 m 3/16" JWR
3 -17" Glass Spheres
1
3000 m
503
Aanderaa RCM-8
1000 m 3/8" VLS
824 m 3/8" VLS
J
4950 m
2 Jun 92
4 -17" Glass Spheres
I m 3/8" VLS
Aanderaa RCM-8
25 m 3/8" VLS
3 -17" Glass Spheres
2 m 3/8" Chain
DACS 723A Release
15 m 5/8" Nylon
5003m
36
Mooring BEST-3.
Position:
t
29° 59.43' S
08° 49.78' E
Depth of Water:
Mooring Set:
Mooring Retrieved:
Data Interval:
5003m
1030 U.C.T. 22 June 1992
1446 U.C.T. 28 October 1993
1300 U.C.T. 22 June 1992 - 1400 28 October 1993
Instrumentation:
Depth m
RCM8 Serial No./Sequence No.
205m
505m
3000m
4950m
682/54
684/49
503//75
10/14/12
Instrument 682 recorded speed, direction, temperature, and pressure every 60 minutes
until the instrument was recovered. Three sections of the speed record have been bridged:
lines 1804 - 1814 (1600 5 Aug - 0200 6 Aug 92);
lines 2096 - 2132 (0200 17 Sep - 0800 19 Sep 92); and
lines 3523 - 3540 (0600 16 Nov - 0000 17 Nov 92).
During these intervals the speed record dropped abruptly to threshold.
Instrument 684 recorded speed, direction, temperature and pressure every 60 minutes
until the instrument was recovered. The following corrections were applied to it's record:
Current Speed nulled in lines 1910 through 2291 (0200 10 Sep 92 - 2300 25 Sep 92).
Current Speed (u and v) bridged in lines 7612 through 7619 (1600 5 May 93 - 2300
5 May 93)
Current Speed (u and v) bridged in lines 7994 through 8009 (1400 21 May 93 0400 22 May 93.)
Instrument 503 stopped recording when it went into the water. It appeared to have taken
in water through the conductivity case, shorting out the conductivity cell and the battery.
Instrument 10114 recorded speed, direction, and temperature every 60 minutes until
recovery. The data record was completely clean, no corrections.
l
t
t
i
t
F
37
Statistics, BEST 3. Hourly Unfiltered Data
205 meters at BEST 3. 1300 22 Jun 92 - 1400 28 Oct 93. Tape 682/54.
Speed, cm/sec
U, cm/sec
V, cm/sec
Temp, deg c
Pressure, db
a
a
min
mean
max
sd
num
0.44
-65.32
-36.18
19.33
-8.91
65.32
41.65
4.14
9.48
207.57
13.32
45.91
15.27
221.24
343.74
12.46
16.24
12.99
0.85
16.15
11834
11834
11834
11834
11834
505 meters at BEST 3. 1300 22 Jun 92 - 1400 28 Oct 93. Tape 684/49.
Speed, cm/sec
U, cm/sec
V, cm/sec
Temp, deg c
Pressure, db
min
mean
max
sd
num
0.93
-44.41
13.23
46.29
25.84
40.22
11.26
643.69
7.86
11.14
8.30
0.87
16.72
11452
11452
11452
11834
11834
-28.40
4.34
510.55
-4.32
5.02
8.01
523.41
4950 meters at BEST 3.. 1300 22 Jun 92 - 1400 28 Oct 93. Tape 10114/12.
Speed, cm/sec
U, cm/sec
V, cm/sec
Temp, deg c
A
min
mean
max
sd
num
0.93
8.22
0.12
0.16
1.09
26.11
19.83
19.91
4.32
7.42
5.58
1.11
0.01
11834
11834
11834
11834
-24.04
-22.64
1.05
38
Statistics, BEST 3. LLP Filtered 6-hourly Data
205 meters at BEST 3. 1800 23 Jun 92 - 1200 27 Oct 93. Tape 682/54.
min
mean
max
sd
num
Speed, cm/sec
U, cm/sec
V, cm/sec
0.49
-56.20
-29.35
18.44
-8.98
12.29
15.58
12.27
1964
1964
1964
Temp, deg c
Pressure, db
9.92
207.64
59.66
23.56
39.55
15.13
0.84
308.69
15.72
1964
1964
4.14
13.32
221.21
505 meters at BEST 3. 1800 23 Jun 92 - 1200 27 Oct 93. Tape 684/49.
Speed, cm/sec
U, cm/sec
V, cm/sec
Temp, deg c
Pressure, db
min
mean
max
sd
num
0.70
-35.57
-16.43
12.57
-4.37
5.02
35.81
7.13
10.47
7.40
1893
1893
1893
4.94
8.01
23.82
28.96
10.93
510.71
523.37
609.96
0.85
16.34
1964
1964
a
4950 meters at BEST 3.. 1800 23 Jun 92 - 1200 27 Oct 93. Tape 10114/12.
Speed, cm/sec
U, cm/sec
V, cm/sec
Temp, deg c
min
mean
max
sd
num
0.25
-22.09
-20.58
1.06
7.91
0.11
22.14
4.11
16.53
15.50
7.19
5.27
0.01
1964
1964
1964
0.16
1.09
1.10
1964
i
r
L
39
Mooring BEST 3. 22 Jun 92 - 28 Oct 93.
-4000
-3500
-3000
-2500
-1500
N2000
-1000
2000 km
505 m at BEST 3. 79.5 days starting 1300 22 Jun 92.
1500
500 km
1000
500 km
-500
500
1 -500
505 m at BEST 3. 397.6 days starting 0000 26 Sep 92:
-2500
-2000
-1500
500 km
-1000
-500
-500
-400
_
\
100-X /I/
100
-100
-200
200 km
205m at BEST 3. 22 Jun 92 - 28 Oct 93. RCM 684/49.
,Mean
0.10 T
0.40 T
0.08
0.30 t
0.06
0.20 t
0.04
0.10 t
0.00
I
0
0.02
f-
I
10
-
P ===l
40
i
i
i
20
30
0.00
i
0
50
30
60
90
120 150 180 210 240 270 300 330 360
Direction, degrees true
Speed, cm per sec
,Mean
,Mean
0.70
0.30
0.60
0.25
0.50
0.20
0.40
0.15
0.30
0.10
0.05
0.00
0.20
L
4
0.10
fi-izl6
5
I
I
7
I
I
8'
I
I
1
9
Temperature, degrees C.
1-1-t
10
11
I
I
12
0.00
510
t-_
530
550
570
590
Pressure, decibars
610
630
650
W - i> - 1M mom r' m M&vwjhgAM%w x"6 1M memo A
505m at BEST 3. 22 Jun 92 - 28 Oct 93. RCM 684/49.
,Mean
0.10 T
0.40 T
0.08
0.30 t
0.06
0.20 t
0.04
0.10
0.02
I
I
0.00
i
P===]
i
F
1
i
0.00
i
40
30
20
10
0
0
50
30
60
90
120 150 180 210 240 270 300 330 360
Direction, degrees true
Speed, cm per sec
,Mean
,J,Mean
0.70
0.30
0.60
0.25
0.50
0.20
0.40
0.15
0.30
0.10
0.20
0.05
0.10
:0.00
I
4
1=15
6
.
1
7%
1
I
8
i
1
I,
1
9
Temperature, degrees C.
10
11
i
12
0.00
510
'530
550
570
590
Pressure, decibars
610
630
650
-P
N
4950m at BEST 3. 22 Jun 92 - 28 Oct 93. RCM 10/14/12
I Mean
0.05 T
0.20 T
FL
0.04
0.15 t
0.03
0.10 t
0.02
0.05 t
0.00 i
0
0.01
-I
I
4
I
H-r-I
8
12
I
I
I
ICI
20
16
I
0.00
I
28
24
30
0
60
90
120 150 180 210 240 270 300 330 360
Direction, degrees true
Speed, cm per sec
,j,Mean
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
0.85
I
0.95
1.05
I
1.15
Temperature, degrees C.
I
1.25
I--I
1.35
Mooring BEST 3. Unfiltered current.
4950m.
505m
205m
1041
10°
1
x
I
T
10-2
10-2
95 pct
10-3
-3
H 11""'
10-3
10-2
H 1111111
10-1
100
I
I + 111111 -H f+I+HI
101
Frequency, cycles per day
10
102
I
i
10-3
iiu
10-2
"" 11
10-1
"""'
100
I
I
1111111
101
Frequency, cycles per day
10-3
111+11+II
102
10
95 pct
4
-I 111 +IH
10-3
H ++m+ 11/11/11
10-2
10-'
100
I
I 1 111111
101
Frequency, cycles per day
I
I I I 11111
102
40
30
20
10
0
-10
-20
-30
U-component
40
30
-component
20
10
0
-10
-20
-30
Temperature
Pressure
200
240
280
I,
I
320
J
J
A
S
0
I
I
I
I
N
D
I
J
I
I
F
M
"'
A
I
I
M
J
J
A
S
0
1993
1992
205m at Best 3. LLP 6-hourly Data.
IV M an 00 *00 4%
OV
an
Pon*
Ow 6%
10.00
8.00
6.00
4.00
I
J
A
S
1992
0
N
D
J
F
M
A
M, J
J
A
0
1993
505m at Best 3. LLP 6-hourly Data.
U'
30
0
N
20
10
0
0
-10
-20
J
J
A
0
S
1992
N
D
J
F
M
A
M
J
1993
4950m at Best 3. LLP 6-hourly Data.
J
A
S
0
TN
-30 -
-40 I-
-20
a)
cn
4950m
10
`
'I
101h,
AA
-20
C
I
J
I
I
J
A
0
S
1992
N
D
J
F
M
A
M
J
1993
Velocity at BEST 3. LLP 6-hourly Data.
J
A
S
0
.P
00
40
30
205m
20
10
0
A
-10
-20
-30
1
A
- 40
505m
-50
20
10
0
20 I0
U)
0
11-1
E -10
0
-20
N
-
-30r
J
I
I
I
J
A
a)
-10
-20 E0
-30
-40
4950m
10F-
U
S
1992
0
I
I
I
I
N
D
I
I
J
F
I
M
A
M
J
I
I
I
I
I
J
1993
U-component at BEST 3. LLP 6-hourly Data.
A
I
S
0
40
30
205m
20
a
10
0
0
-10
-20
-30
-40
30
20
10
U
ccn
0 E
-10
20
U
-20
4950m
10
U)
0
A
E0 -10
-20
-30
J
I
I
I
A
S
1992
0
I
I
!
N
D
J
I
I
I
F
M
!
I
A
M
I
I
J
J
A
I
S
0
1993
V-component at BEST 3. LLP 6-hourly Data.
-Al
10
VA
17.0
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
15.0 -
13.0-I
11.0 -I
7.0 -I
5.0 -I
3.0 -
4950m
1.0
J
J
A
S
0
N
D
J
F
M
A
M
J
J
1993
1992,
Temperature at BEST 3. LLP 6-hourly Data.
s
err
a .- ' - 1,
!`
..
_..
A
S
0
4
51
Mooring BEST-4
1
t
41" Steel Sphere s/n 591
2 m 1/2" Chain
23 Jun 92
Recovered: 29 Oct 93
Installed:
50m3/16"JWR
210m
0
488
Aanderaa RCM-8
Latitude: 30° 00.19' S
Longitude: 05° 59.75' E
292 m 3/16" JWR
Q 6 -17" Glass Spheres
510m
0 F 497
Aanderaa RCM-8
500 m 3/16" JWR
2 -17" Glass Spheres
1
500m3/16"JWR
2 -17" Glass Spheres
a
500 m 3/16" JWR
2 -17" Glass Spheres
500 m 3/16" JWR
2 -17" Glass Spheres
475 m 3/16" JWR
3 -17" Glass Spheres
3010 m
0
500
Aanderaa RCM-8
1985 m 3/8" VLS
J
5130 m
0
835 m 3/8" VLS
1000 m 3/8" VLS
100 m 3/8" VLS
50 m 3/8" VLS
4 -17" Glass Spheres
1 m 3/8" VLS
Aanderaa RCM-8
25m3/8"VLS
4
3 -17" Glass Spheres
2 m 3/8" Chain
DACS 723A Release
15 m 5/8" Nylon
5180m
52
Mooring BEST-4.
Position:
30° 00.19' S
05° 59.75' E
Depth of Water:
Mooring Set:
Mooring Retrieved:
Data Interval:
5180m
1420 U.C.T. 23 June 1992
1658 U.C.T. 29 October 1993
1800 U.C.T. 23 June 1992 - 1600 29 October 1993
I.
Instrumentation:
Depth m
210m
510m
3010m
5130m
RCM8 Serial No./Sequence No.
488/71
497/79
500/82
a
10/12/13
Instrument 488 recorded speed, direction, temperature, and pressure every 60 minutes until
recovery. The following corrections were made:
Current Speed interpolated in lines 2464 through 2467
Current Speed interpolated in lines 2462 through 2464
Current Speed interpolated in line 2465
Current Speed (u and v) bridged in lines 2798 through 2806 (2300 2 Jan - 0400 3 Jan 93).
Current Speed interpolated in line 3551
Current Speed interpolated in lines 3609 through 3610
Current Direction interpolated in line 3765
Current Speed interpolated in line 6461
Instrument 497 recorded speed, direction, temperature, and pressure until recovery. The
following corrections were made:
Current Speed (u and v) bridged in lines 2463 thru 2550 (0800 4 Oct 92 to 2300 7 Oct 92).
Current Direction interpolated in lines 11681 thru 11682
Current Direction interpolated in line 11684
Instrument 500 recorded speed, direction, and temperature. The following corrections were
made:
Current Speed interpolated in line 1806.
Current Speed (u and v) bridged in lines 4638 through 4643 (2300 2 Jan - 0400 3 Jan 93),
Current Speed interpolated in line 9961.
Instrument 10112 recorded speed, direction, and temperature until recovery. There were no
corrections to its record.
t
r
t
L
t
1
4
53
Statistics, BEST 4. Unfiltered Hourly Data
210 meters at BEST 4. 1800 23 Jun 92 - 1600 29 Oct 93. Tape 488/71.
J
a
f
1
ti
min
mean
max
Speed, cm/sec
U, cm/sec
V, cm/sec
0.93
-44.86
-65.66
18.00
-2.38
0.96
Temp, deg c
Pressure, db
10.77
13.75
68.21
42.54
53.41
16.87 ~
213.62
225.39
1
10.10
14.02
14.93
11831
11831
11831
1.06
13.71
11831
11831
min
mean
max
sd
num
Speed, cm/sec
U, cm/sec
V, cm/sec
0.93
-35.62
-45.18
11.49
-2.53
0.43
6.61
8.84
9.55
11831
11831
11831
Temp, deg c
Pressure, db
5.47
514.18
8.49
524.66
45.43
39.23
37.55
11.93
1.17
14.95
11831
11831
624.09
3010 meters at BEST 4. 1800 23 Jun 92 - 1600 29 Oct 93. Tape 500/82.
Speed, cm/sec
U, cm/sec
V, cm/sec
Temp, deg c
min
mean
max
sd
num
0.93
-25.50
-28.60
8.56
-0.73
-1.99
29.57
26.38
4.87
6.77
6.83
11831
11831
11831
2.35
2.42
2.53
0.02
11831
18.48
5130 meters at BEST 4. 1800 23 Jun 92 - 1600 29 Oct 93. Tape 10112/13.
Temp, deg c
4
num
510 meters at BEST 4. 1800 23 Jun 92 - 160029 Oct 93. Tape 497/79.
Speed, cm/sec
U, cm/sec
V, cm/sec
i
324.30
sd
min
mean
max
sd
num
0.93
-19.47
-16.08
1.12
7.13
1.33
-1.81
20.93
19.19
11.73
3.49
5.86
4.86
11831
11831
11831
1.15
1.18
0.01
11831
54
Statistics, BEST 4. LLP Filtered 6-Hourly Data
210 meters at BEST 4. 1800 24 Jun 92 - 1200 28 Oct 93. Tape 488/71.
min
mean
max
sd
num
Speed, cm/sec
U, cm/sec
V, cm/sec
0.35
-36.29
-60.11
17.15
-2.37
61.70
31.23
44.63
9.58
13.25
14.27
1964
1964
1964
Temp, deg c
Pressure, db
11.15
214.07
16.37
1.05
13.32
1964
1964
0.94
13.75
225.41
298.54
510 meters at BEST 4. 1800 24 Jun 92 - 1200 28 Oct 93. Tape 497/79.
min
mean
max
sd
num
Speed, cm/sec
U, cm/sec
V, cm/sec
0.88
-23.63
-28.29
9.98
-2.52
0.43
28.84
5.81
13.43
6.05
514.17
8.49
524.68
27.70
11.53
1964
1964
1964
Temp, deg c
Pressure, db
7.54
8.37
1.16
599.34
14.54
1964
1964
3010 meters at BEST 4. 1800 24 Jun 92 - 1200 28 Oct 93. Tape 500/82.
min
Speed, cm/sec
U, cm/sec
V, cm/sec
Temp, deg c
max
mean
num
sd
0.24
-21.83
-22.66
8.31
-0.73
-2.01
24.71
17.48
24.44
4.72
6.56
6.61
1964
1964
1964
2.36
2.42
2.50
0.02
1964
t
t
r
5130 meters at BEST 4. 1800 24 Jun 92 - 1200 28 Oct 93. Tape 10112/13.
Speed, cm/sec
U, cm/sec
V, cm/sec
Temp, deg c
min
mean
max
sd
num
0.22
-14.69
-11.47
6.88
1.33
-1.82
1.15
16.23
15.44
8.13
3.15
5.61
4.55
1964
1964
1964
1.17
0.01
1964
1.12
R
F
I
55
Mooring BEST 4.
23 Jun 92 - 29 Oct 93.
T 750 km
ti
a
+ 500 km
t
-1250
510matBEST 4.
+-250
-500
-250
3010 mat BEST 4.1
250
fl
-
I
500 km
-250
250
1
1/
5130 m at BEST 4.
A
i
500
-500
-750
-750
-1000
-1000
750
1000 km
to
210m at BEST 4. 23 Jun 92 - 29 Oct 93. RCM 488/71.
,,Mean
0.25 r
0.05 T
0.20 +
0.04 T
0.15 +
0.03
0.10 +
0.02 +
r-
I FI-LL
J
Lr
0.01 +
0.05 +
0.00
I
0
i
+
10
20
i
+
30
i
i i I-t-7
40
50
60
i
i
70
0.00
'
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, degrees true
Speed, cm per sec
,Mean
,Mean
0.50 r
0.20
0.40 +
0.15
0.30 +
0.10
0.20 +
0.05
0.00
10.5
0.10 +
11.5
12.5
13.5
14.5
15.5
Temperature, degrees C.
16.5
17.5
Q.00 a
210
i
+
230
i
f
250
i
i
270
F
290
Pressure, decibars
310
i
330
51 Om at BEST 4. 23 Jun 92 - 29 Oct 93. RCM 497/79.
,t,Mean
.
0.05
0.40
0.04
0.30
0.03
0.20
0.02
0.10
0.01
0.00
0.00
0
30
20
10
0
50
40
30
60
90
120 150 180 210 240 270 300 330 360
Direction, degrees true
Speed, cm per sec
,Mean
,Mean
0.60 T
0.25 T
0.50
0.20 t
0.40
0.15 t
0.30
0.10 t
0.20
0.05 t
0.10
0.00 a
0.00
5
7
8
9
10
Temperature, degrees C.
11
12
510
1
i
530
1
+
i
550
570
-
i
590
Pressure, decibars
610
i
i
630
3010m at BEST 4. 23 Jun 92 - 29 Oct 93. RCM 500/82.
,Mean
0.05 T
0.20
0.04 t
0.15
0.03 t
0.10
0.02 t
0.05 +
0.01 t
0.00
0
4
r-r-i
8
12
f
I
16
F
F
i1
F
20
24
i-+
i
28
i,.,,,,,,,,
0.00
0
32
30
60
90
120 150 180 210 240 270 300 330 360
Direction, degrees true
Speed, cm per sec
,Mean
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
2.2
2.3
2.4
2.5
Temperature, degrees C.
2.6
2.7
5130m at BEST 4. 23 Jun 92 - 29 Oct 93. RCM 10112/13.
.IMean
0.06 T
0.25 T
0.20 t
0.15 t
0.10 t
0.05 t
0.00.
0
0.01 t
.
i--,--
4
8
0.00
12
20
16
0
24
i
,
30
60
90
i
,..., ...;;
120 150 180 210 240 270 300 330 360
Direction, degrees true
Speed, cm per sec
,Mean
0.60
0.50
0.40
0.30
0.20
0.10
0.00
0.9
1.0
1.1
1.2
Temperature, degrees C.
1.3
1.4
Mooring BEST 4. Unfiltered current.
51 Om
21 Om
104
1031
102
N
ca
a
v
w
10'1
0
0
x
10-'
x
10'2
10-2
95 pct
95 pct
10-3
1
......... ........I0 iAitm1
10"3
10"2
10"'
1111moi
100
101
Frequency, cycles per day
i
i i ii1111
102
10-3
HT111111 H
10"3
10"2
Hiiz1111
10.1
10°
10'
Frequency, cycles per day
I
Ii$riiri
102
T
10-4
10-3
z
2
1031
104
10-1
100
101
Frequency, cycles per day
10-2
102
95 pct
v
a
w
C
10-1
0
I
2
2
T
10'4
10-3
f
1031
10
101
102
30/0m/03
104
10-'
10°
5130m
101
Frequency, cycles per day
10.2
Mooring BEST 4. Unfiltered current.
102
95 pct
20
10 0
cn
0
-10 E
-20
U
10
ai
0
E -10
-20
-30
-40
-50
16.00
Temperature
14.00
0
Q
12.00 .D
10.00
I
J
J
A
0
S
1992
I
I
I
I
I
N
D
I
J
I
I
F
M
I
A
I
I
M
J
1993
210m at Best 4. LLP 6-hourly Data.
I
J
I
A
I
S
0
U-component
40
30
0
20
10
E
0
-10
-20
12.00
-30
10.00
8.00
6.00
520
600
J
J
A
0
S
1992
N
D
J
F
M
A
M
J
1993
51 0m at Best 4. LLP 6-hourly Data.
J
A
S
0
0
30
30
20
V-component
10
0
-10
-20
-30
I
2.50
I
2.45
U
2.40
VU
2.35 -o
J
J
I
I
I
1
A
0
S
1992
I
I
I
N
D
I
J
F
I
I
I
M
A
I
M
I
J
1993
3010m at Best 4. LLP 6-hourly Data.
I
I
J
A
2.30
I
S
0
30
20
10
0
-10
-20
20
10
0
-10
-20
Temperature
N
U
a)
I
J
I
I
J
A
I
I
0
S
1992
I
I
N
D
I
I
J
F
M
I
I
I
A
M
I
J
J
A
- 1.10
I
I
I
S
0
1993
5130m at Best 4. LLP 6-hourly Data.
In
50
40
30
20
10
0
-10
-20
-30
-40
30
20
10
ai
0 E
-10
-20
30
20
10
0
0
-10
-20
20
10
0
r
J
I
I
I
J
A
I
I
0
S
1992
I
I
N
D
I
I
J
F
I
M
I
A
-20
I
M
J
J
A
S
0
1993
Velocity at BEST 4. LLP 6-hourly Data.
qp
- f' =_ M% M Ow - on MOM MOM 0- IV
J
J
A
I
I
I
I
S
1992
0
I
I
N
D
I
I
J
F
M
A
I
M
J
J
1993
U-component at BEST 4. LLP 6-hourly Data.
A
S
0
50
-2030
20
10
0
U)
0
-10 0
-20
-30
20
3010m
10
0
0 -10
-20 I-
5130m
J
I
I
I
J
A
S
1992
0
N
D
I
J
I
1
F
M
A
II
M
I
1
J
J
1993
V-component at BEST 4. LLP 6-hourly Data.
I
I
A
S
0
17.0
I
I
1
1
15.0-I
13.0
11.0 -
7.0 -I
5.0 -
3010m
3.0 -I
5130m
1.0
J
J
A
S
1992
0
N
D
J
F
M
A
M
J
J
1993
Temperature at BEST 4. LLP 6-hourly Data.
A
S
0