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CEANOGRAPHY
A Compendium of Time Series
Measurements From Moored
Instrumentation during the MAM '77
Phase of JOINT-11
by
K. H. Brink, R. L. Smith and
D. Halpern
Office for the International Decade
of Ocean Exploration
National Science Foundation
OREGON STATE UNIVERSITY
OCE 78-03380, OCE 78-03382, and
OCE 78-04823
Reference 78-17
CUEA Technical Report 46
October 1978
Ge
A COMPENDIUM OF TIME SERIES MEASUREMENTS FROM
MOORED INSTRUMENTATION DURING THE MAM '77 PHASE OF JOINT-II
K. H. BRINK & R. L. SMITH
DAVID HALPERN
School of Oceanography
Oregon State University
Corvallis, Oregon 97331
NOAA Pacific Marine Environmental Laboratory
3711 15th Avenue, N.E.
Seattle, Washington 98105
Office for
the International Decade of Ocean Exploration
National Science Foundation
OCE 78-03380, OCE 78-03382, and OCE 78-04823
CUEA Technical Report 45
Oregon State University Reference 78-17
October 1978
School of Oceanography
Oregon State University
Corvallis, Oregon 97331
TABLE OF CONTENTS
Page
INTRODUCTION
1
EXPLANATIONS OF TABLES AND FIGURES
2
TABLES
5
FIGURES
Map of Instrument Positions
Stick Diagrams
Line Plots
Mid-Shelf Velocity Profiles
11
12
26
54
INTRODUCTION
An extensive array of instruments, including current meters,
temperature recorders, anemometers and tide gauges, was moored off
the Peru coast during the culminating phase of JOINT-II from early March
to late May 1977.
The basic description and analysis of the time series
data from these instruments is given in reports of Oregon State University
(Enfield, Huyer and Smith, 1978)1 and of the NOAA Pacific Marine
Environmental Laboratory (Halpern and Freitag, 1978, in preparation).
The OSU moorings had Aanderaa instruments; the NOAA/PMEL moorings had
vector-averaging current meters (VACM) and wind recorders.
The time series data used in this compendium are low pass filtered
versions of the original data series.
The low pass filter removed the
diurnal tide and higher frequency fluctuations.
For periods shorter
than 26 hours less than 1% of the amplitude remains, half the amplitude
is passed at 40 hours and more than 90% of the amplitude is passed at
60 hours.
The half power point of the filter is at 46.6 hours.
We
present visual and statistical representations of the data in forms that
will be generally useful to the interdisciplinary research of CUEA.
Comparable information for measurements during 1976 (March through
September) can be found in Brink, Allen and Smith (1978).2
1.
Enfield, D. B., R. L. Smith and A. Huyer, 1978: A compilation of
observations from moored current meters, Volume XII: Wind,
currents and temperature over the continental shelf and slope
off Peru during JOINT-II.
March 1976 - May 1977.
Data Rep. 70,
Ref. 78-4, 347 pp., School of Oceanography, Oregon State
University, Corvallis.
2.
Brink, K. H., J. S. Allen and R. L. Smith, 1978:
A study of lowfrequency fluctuations near the Peru coast.
J. Phys. Oceanogr.,
8, in press.
EXPLANATIONS OF TABLES AND FIGURES
The positions of the instruments are given in Table 1
and Figure 1
(page 11).
(page 5 )
Depth contours on the map are given in meters.
The NOAA/PMEL moorings are PSS, PS and PD.
The OSU moorings were named
for indigenous cacti and succulents, except for Lagarta; these names
are abbreviated to the first letter, except where two letters are needed
to avoid ambiguity.
Simple statistics of the low passed data are given in Table 2 (pages 6
9
Standard deviations were computed after the data had the linear
).
trend removed.
The onshore, u, and alongshore, v, velocity components
are positive towards the coast and towards the northwest, respectively.
The current meter data are presented in a local coordinate system,
determined by the depth averaged principal axes, except for the surface
layer data (PS and PSS) which are rotated 45° counterclockwise from
north.
The principal axis (the direction of maximum variance) provides a
more objective means of determining the alongshore direction than our
uncertain knowledge of bottom topography from navigation charts.
The
principal axis direction, s, is given in degrees counterclockwise from
the north.
Wind data is rotated 45°, counterclockwise from north, the
approximate general direction of the coastline.
All statistics are
computed over the 49.5 day common current meter period (0000 UT March 22
to 0600 UT May 10, 1977).
Stick diagrams are shown in Figures 2-14 (pages
12-24).
They are
plotted on a common scale, and show the entire record length from each
instrument.
Temperatures are shown at the top of each diagram (individual
lines are not labeled since the shallowest instrument always has the
highest temperature, and there are no persistent temperature inversions).
2
The arrow drawn on each figure points toward the north, and its length
represents 50 cm/sec for currents and 10 m/sec for winds.
Line plots of alongshore wind velocity, adjusted sea level and current
velocity components are shown in Figures 15-26 (pages 26-49 ).
Current
meter velocities are in the local coordinate system, and have units of
cm/sec.
Alongshore wind velocity and adjusted sea level have units of
m/sec and cm, respectively.
By adjusted sea level we indicate the sea
level equivalent to the "subsurface" pressure (atmospheric plus sea level),
i.e., we have adjusted for the static inverted barometer effect.
Line plots, arranged for easy intercomparison, are presented for wind
velocity components (Figure 27, pages 50 and 51 ) and for adjusted sea
level (Figure 28, page 52).
Winds are given in m/sec, and sea level
(referenced to an arbitrary datum) is given in cm.
Vertical profiles of the onshore-offshore and alongshore current
components are presented for Agave/PSS (Figure 29,
for Mila-5 (Figure 30, pages 64 - 72 ).
pages 54 - 62 ) and
The onshore and alongshore
directions are taken as 45° counterclockwise from the east and north,
respectively; these directions differ slightly from the principal axis
orientation used in other plots (cf. Table 2).
at two day intervals.
The profiles are presented
Since the characteristic time scale for u is less
than two days (cf. Figure 17b), the reader should consult the line plots
for velocities at times other than those given here.
3
TABLES
Table
1.
Summary of positions, water depths and current meter
depths for instrument arrays in the MAM '77 phase of
Only instruments from which data were
obtained are listed. M: Meteorological buoy
JOINT-II.
T:
Station
Tide gauge
Water
Depth (m)
Position
Euphorbia
Parodia
15°03.4'S
15°O4.0'S
15°O6.8'S
15°06.0'S
15°09.9'S
15°11.5'S
15°10.0'S
15°51.5'S
15°31.2'S
14°55.7'S
75°27.0'W
75°27.8'W
75°30.2'W
75°30.8'W
75°32.9'W
75°34.3'W
75°36.0'W
76°25.0'W
75°00.8'W
75039.8'W
205
580
620
3220
123
124
Opun ti a
Yucca-Too
Peyote
12°14.2'S
12°04.6'S
9°57.8'S
77°35.9'W
620
77°19.5'W
117
78°24.3'W
117
PSS
Agave
PS
Mila-5
Ironwood
Lobivia
Lagarta
PD
75
86
121
121
5
Current Meter Depths (m)
M,4.5,8,12,16
26,46,67,77,T
M,2.5,4.6,8.1,12,16,20,24
M,19,39,59,80,100,115
24,44,63,105,155,180,T
58,83,183,283
92,115,214,512
M
M,25,63
M,24,64,104
129,224,324,524
37,57,97
37,56,96,T
Table
2a.
Current meter statistics from the 49.5 day common period
(0000 UT 22 March 1977 to 0600 UT 10 May 1977). Velocities
are in cm/sec and temperatures in °C. Principal axis
direction, e, is given in degrees counterclockwise from
North.
Numbers in parentheses below the mooring name
give the total water depth in m, and the assumed alongshore
direction in degrees counterclockwise from North.
Principal
Mooring
Means
Depth
u
Axis
Standard
Deviations
Instrument
v
T
u
v
Direction
T
e
PSS
4.5
-1.6
13.2
16.02
3.3
9.3
0.51
44.6°
(75, 45.0°)
8
-1.1
10.2
15.89
3.6
9.2
0.35
38.2°
A
15.77
A
A
0.24
A
7.0
0.19
41.4°
12
A
16
-1.0
3.7
15.67
3.1
Agave
26
4.2
-0.2
15.53
3.9
10.6
0.12
44.3°
(86, 45.3°)
46
6.1
-6.2
15.32
4.2
10.6
0.10
43.7°
67
1.8
-4.8
15.13
3.0
6.8
0.11
51.2°
77
0.1
-3.7
15.05
2.0
4.6
0.13
42.1°
PS
2.5
-5.8
17.9
16.46
4.5
11.20.39
58.5°
(121, 45.0°)
4.6
-6.5
14.1
16.37
4.9
10.6
0.33
62.7°
8.1
-6.5
10.0
16.26
5.7
9.7
0.27
68.2°
12
-3.2
6.1
16.10
5.0
8.6
0.22
62.1°
16
-1.7
4.3
15.95
5.7
8.6
0.18
64.2°
20
-0.2
3.2
15.83
5.7
8.0
0.16
64.6°
24
0.0
1.9
15.69
5.0
8.0
0.15
51.2°
Mila V
19
B
B
15.93
B
B
0.18
B
(121, 47.5°)
39
4.8
-4.9
15.49
6.0
8.5
0.10
33.8°
59
5.5
-6.0
15.20
4.7
8.9
0.08
42.2°
80
3.4
-5.7
15.05
4.6
8.5
0.13
60.1°
100
0.7
-3.6
14.87
3.3
6.8
0.16
58.4°
115
-1.6
-1.5
14.63
2.2
4.7
0.22
43.1°
6
Table 2a.
(Continued)
Principal
Standard
Instrument
Depth
Mooring
u
Ironwood
v
Axis
Direction
Deviations
Means
T
u
v
T
0
24
-5.7
-0.8
16.14
6.7
7.7
0.28
52.2°
44
-0.7
-3.7
15.60
5.8
8.9
0.17
48.00
63
0.3
-6.3
15.21
7.0
10.00.10
42.6°
105
-0.3
-6.1
14.76
4.9
9.4
0.16
44.7°
155
-0.8
-4.5
13.87
2.4
9.5
0.28
35.9°
180
-0.7
-4.9
13.36
2.0
8.2
0.41
35.9°
Lobivia
58
-1.6
-6.9
15.37
5.3
7.5
0.14
47.4°
(580, 48.9°)
83
C
C
C
C
(205,
43.10)
C
C
C
183
-0.4
-1.3
13.31
3.4
10.5
0.35
43.0°
283
-0.4
+1.3
11.32
1.7
7.5
0.33
56.10
92
-2.8
-8.6
14.85
4.4
8.8
0.16
53.0°
115
-2.4
-6.9
14.52
3.9
8.9
0.21
51.1°
214
-0.0
3.1
12.57
2.7
8.6
0.30
52.5°
512
0.4
-0.8
7.25
1.0
4.9
0.18
65.5°
M
M
17.13
M
M
0.50
-
25
0.7
-0.4
15.63
3.2
14.5
0.22
60.1°
63
0.3
-5.7
14.98
2.9
13.5
0.10
64.5°
3
M
M
16.99
M
M
0.55
-
24
D
D
15.90
D
D
0.22
D
64
1.6
-8.2
15.15*
4.9
9.0
0.13
45.4°
104
-0.1
-3.4
14.83
2.3
7.7
0.18
42.2°
Yucca Too
37
0.6
-9.2
16.38
7.5
8.4
0.13
-13.1°
(117, 4.9°)
57
E
E
E
E
97
0.4
15.42
4.0
7.6
Lagarta
(620, 55.5°)
Euphorbia
(123, 62.3°)
Parodia
(124, 43.0°)
3
E
-5.2
7
E
0.26
E
23.0°
Table
2a.
(Continued)
Principal
Mooring
Depth
v
129
(620, 39.8°)
224
324
F
F
-2.6
-0.1
G
G
Direction
Deviations
Means
u
Opuntia
Axis
Standard
Instrument
v
T
6
T
u
14.25
F
F
0.31
F
12.53
2.4
7.0
0.26
43.2°
G
G
G
G
G
524
+0.1
-0.2
7.29
0.6
2.0
0.21
36.5°
Peyote
37
9.1
-20.4
16.75
2.9
5.7
0.31
6.5°
(117, 8.2°)
56
8.9
-22.2
15.78
3.4
5.9
0.21
13.10
96
4.2
-15.5
15.17
2.6
5.7
0.20
5.0°
A:
LLP current data exists from 0000 UT 6 March 1977 to 1800 UT
20 April 1977.
B:
LLP current data exists from 0600 UT 7 March 1977 to 0000 UT
27 April 1977.
C:
Intermittent hourly data exists.
D:
LLP current data exists from 0000 UT 19 March 1977 to 0600 UT
15 April 1977.
E:
LLP data exists from 0000 UT 11 March 1977 to 0600 UT 6 April 1977.
F:
No current velocity data was obtained.
G:
LLP data exists from 0600 UT 14 March 1977 to 1200 UT
29 April 1977.
M;
Data from meteorological buoy, which measured temperature but not currents
at 3 m depth.
*:
Wind data from buoy is given in Table 2b.
Temperature calibration is
uncertain;
8
the mean is probably low by 0.09°C.
Table 2b.
Wind velocity statistics from the 49.5 day common
period (0000 UT 22 March 1977 to 0600 UT 10 May 1977).
Velocities are in m/sec. All records are rotated
45° from the North.
Principal axis directions are
given in degrees counterclockwise from the North.
Location
Means
u
PSS
2.35
PS
Standard
Deviations
H
v
u
5.26
0.57
H
H
v
1.97
H
Principal
Axis
Direction
0
30.5°
H
PD
0.65
5.61
1.02
1.37
51.0°
Euphorbia
0.57
2.14
0.51
1.08
54.1°
Parodia
0.68
2.72
0.35
1.88
47.5°
San Juan
2.52
5.91
0.50
1.65
37.6°
Callao*
1.03
2.94
0.38
2.03
36.8°
H:
LLP data exists from 0000 UT 7 March 1977 to
1800 UT 14 April 1977.
*
Anemometer on top of IMARPE building
9
FIGURES
5°N
0°F-
10°
150
20°
90° W
800
70°
19.0
15.0
4.5M
8M
12MI/
\\\I/fiLu7\\I I/1,
16M
., r\l
1
1
1
MAR
APR
MAY
PSS
1977
Figure 2.
12
17.0
14.0
26M
46M
41
1
67M
, Nlr\ljn
'/
7/s
77M
11
,
Y
'i'C'
.t
lll\'
7a
N\\J \\Jymp
1I
.
'WIX /Wo "vi 1
11
iii li
IIfM
1
MAR
1
1
APR
AGAVE, 1977
Figure 3.
13
MAY
,iffIr
1//
\)N%Alv\
16M
Jui
20M
24M
\\?F/
pfq
A\W71P
\X-\
1
1
1
MAR
APR
MAY
Figure 4.
PS 1977
14
16.0
13.0
19M
IT
39M
yl
59M
80M
1
115M
1
MAR
1
1
APR
MAY
Figure 5.
MILA FIVE
15
17.0
12.0
24M
v
44M
IN
63M
105M
155M
111AI
180M
-1/
VIII
1
1
MAR
APR
1
MAY
Figure 6.
IRONWOOD
16
17.0
11.0
58M
183M
IJALIII.IAIII 'LLw\1'
283M
111I\I1r\IIII.tll.\ylll
1
I
1
1
1
MAR
APR
MAY
LOBIVIA,1977
Figure 7,
17
16.0
6.00
92M
115M
214M
I
IAI \U/
,\d/i iIUI,
512M
1
1\\o\\
1
1
1
MAR
APR
MAY
Figure 8.
LAGARTA,1977
18
"
\17/pjr F
1111
II
1
1
APR
MAY
Figure 9.
19
18.0
14.0
24M
TlltMl
64M
104M
f
11/1//11 ll
1
1
MAR
APR
4 r7w
111
1
MAY
PARODIA
Figure 100
20
17.0
14.0
37M
lll;T
- T/A
57M
V74,1/1frl
97M
1
1
1
MAR
APR
MAY
YUCCA TOO
Figure 110
21
IV
15.0
6.00
1
224M
IT
324M
524M
1
1
MAR
1
MAY
APR
OPUNTIA
Figure 12.
22
18.0
14.0
/
1
1
1
MAR
APR
MAY
PEYOTE
Figure
23
PA
PSS
E/%//
,AIlil,.
1
1
MAR
APR
ill/A,
lu I , /)I- dw /I /,
1
MAY
SAN
JUAN SEA LEVEL
225
SEA
LEVEL
205
PSS ALONGSHORE CURRENT
-251
Figure 15a.
26
PSS ALONGSHORE WIND
10 T
WIND
V
-10 1
25+
PSS ONSHORE CURRENT
4.5M U
-25 f
25
BM U
-25 1
25
12M U
U
16M U
0
-25
Figure 15b.
27
SAN JUAN SEA LEVEL
225
SEA
LEVEL
205
25I
26M V
AGAVE ALONGSHORE CURRENT
0t
Figure 16a0
28
SAN JUAN ALONGSHORE WIND
10
WIND
V
AGAVE ONSHORE CURRENT
26M U
-
PA -a 4 4 LILLL
46M U
67M U
-25
25
77M U
0
7
1
1
-25
APR
MAY
Figure 16b.
29
PS ALONGSHORE CURRENT
25
2.5M
V
-251
25
30
n
PSS ALONGSHORE WIND
WIND
V
251
PS ONSHORE CURRENT
2.5M
T
U
vvvvvqvvv-1\jvr
-251
25 I
4.6M
U
8.1M
U
12M
U
16M
U
20M
U
V)-lymvl:77
A
24M U
Figure 17b.
31
SEA
LEVEL
25 T
t
19M
V
MILA-3Z ALONGSHORE CURRENT
0t
-251
25 z
39M V
0T
-251
25
59M V
80M
V
115M
V
1
1
APR
MAY
Figure 18a.
32
10
WIND
V
0
25 T
19M
SAN JUAN ALONGSHORE WIND
MILA-Y ONSHORE CURRENT
U
-251
25
39M U
59M U
80M
U
-251
25 z
l00M
U
115M
U
1
1
APR
MAY
Figure 18b.
33
225
SEA
LEVEL
205
25
7
IRONWOOD ALONGSHORE CURRENT
24M V
Figure 19a.
34
10
WIND
V
SAN JUAN ALONGSHORE WIND
0
251
IRONWOOD ONSHORE CURRENT
24M U
-251
25
63M U
0t
-251
251
105M
U
0t
-251
25
155M
h rc.n
\/-itijF /1 j- !1V/\ ..v- I V
U
-251
25
180M
U
1
-25-1
1
APR
Figure 19b.
35
MAY
SAN JUAN SEA LEVEL
Figure 20a.
36
SAN JUAN ALONGSHORE WIND
10
WIND
V
-10
25 T
58M U
LOBIVIA ONSHORE CURRENT
0
-251
25
183M
U
-251
25
283M
U
1
1
-25-1
APR
MAY
Figure 20b.
37
SAN JUAN SEA LEVEL
225 T
SEA
LEVEL
205 1
251
LAGARTA ALONGSHORE CURRENT
Figure 21a.
38
SAN JUAN ALONGSHORE WIND
10
WIND
V
0
92M U
115M
U
-25
25 T
214M U
0
-251
25
512M U
0----1
1
-25
MAY
APR
Figure 21b0
39
225
SAN JUAN SEA LEVEL
SEA
LEVEL
205
EUPHORBIA ALONGSHORE CURRENT
Figure 22a.
40
SAN JUAN ALONGSHORE WIND
10 T
WIND
V
0
-10 1
251
EUPHORBIA ONSHORE CURRENT
26M U
63M U
Figure 22b.
41
SAN JUAN SEA LEVEL
225
SEA
LEVEL
205
251
PARODIA ALONGSHORE CURRENT
64M V
104M
V
Figure 23a0
42
SAN JUAN ALONGSHORE WIND
10
WIND
V
0
-10 1
251
24M U
PARODIA ONSHORE CURRENT
0
64M U
104M
U
-251
1
1
APR
MAY
Figure 23b0
43
SEA
LEVEL
YUCCA TOO ALONGSHORE CURRENT
A
-A
1
APR
Figure 24a.
44
1
MAY
10 T
CALLAO ALONGSHORE WIND
WIND
V
-10
251
YUCCA TOO ONSHORE CURRENT
1
37M U
0
57M U
Figure 24b.
45
225
SEA
LEVEL
205
OPUNTIA ALONGSHORE CURRENT
25 I
224M V
0
324M V
-25 I
25 I
524M V
-251
1
I
APR
MAY
Figure 25a.
46
CALLAO ALONGSHORE WIND
WIND
V
224M U
324M U
524M U
0
1
APR
Figure 25b0
47
1
MAY
225
CALLAO SEA LEVEL
SEA
LEVEL
205
PEYOTE ALONGSHORE CURRENT
25 1
37M V
1
1
APR
MAY
Figure 26a.
48
CALLAO ALONGSHORE WIND
10 T
WIND
V
U
-10 1
25T
37M U
-
0
PEYOTE ONSHORE CURRENT
0
-251
25 r
56M U
0
96M U
Figure 26b0
49
'P. ,
/ "/
10 r
ALONGSHORE WINDS
CALLAO V
PA V
Ps V
0
EV
1
1
-10
APR
Figure 27a.
50
MAY
10 T
CALLAO U
PA U
PSS U
PS U
PD U
SAN JUAN U
E U
0
ONSHORE WINDS
20
PEYOTE SEA LEVEL
0
20
SAN MARTIN SEA LEVEL
20-r AGAVE SEA LEVEL
20
IRONWOOD SEA LEVEL
0
1
1
MAY
APR
Figure 28.
52
JOINT-2. PSS/RGRVE
0000
-15
0
ONSHORE
15
-15
(CM/SEC) EQURTORWRRD
0
10
20
30
-30
-5
-10
0000
8 MRR 77
OFFSHORE (CM/SEC)
0
5
10
10 MRR 77
ONSHORE
OFFSHORE (CM/SEC)
5
10
0
-10
-5,
15
20
60
80
-30
POLEWRRD
-20
-10
POLEWRRO
-20
(CM/SEC) EQURTORWRRD
20
30
0
10
-10
0
20
604
80
0000 12 MRR 77
-15
0,
0000
OFFSHORE (CM/SEC) ONSHORE
-10
-5
0
5
10
1
15
-15
(CM/SEC) EQURTORWRRO
0
10
20
30
-30
14 MRR 77
OFFSHORE (CM/SEC) ONSHORE
0
5
10
-10
-5
15
1
20
40
a-
0 60
80
-30
POLEWRRO
-20
-10
0
POLEWRRD
80
Figure 29(1).
54
-20
(CM/SEC) EQURTORWRRO
20
30
0
10
-10
JOINT-2. PSS/RGAVE
0000
-15
0+
0000
16 MAR 77
OFFSHORE (CM/SEC) ONSHORE
-10
5
1G
-5
0
15
1
-15
l
18 MRR 77
OFFSHORE (CM/SEC) ONSHORE
10
5
0
-10
-5
I
15
1
1
1
60
80
-30
0
POLEWARD
-20
(CM/SEC) EQURTORWRRD
0
10
20
30
-10
1
-40
POLEWRRD
-30
1
1
(CM/SEC) EDURTORWRRD
20
10
0
-10
-20
1
1
1
60
80
0000
-15
20 MAR 77
0000
OFFSHORE (CM/SEC) ONSHORE
-10
-5
0
5
10
0
1
I
15
22 MRR 77
OFFSHORE (CM/SEC)
-15
-10
-5
0
ONSHORE
5
10
15
I
S
a
a
60
I
80
-30
POLEWARD
-20
(CM/SEC) EQURTORWRRD
0
10
20
30
-10
0
POLEWRRD
-20
-10
1
60
80
Figure 29(2).
55
0
1
(CM/SEC) EOURTORWRRD
40
10
20
30
1
1
1
JOINT-2. PSS/RGRVE
0000
OFFSHORE (CM/SEC)
-15
-5
-10
0
,
0
0000
24 MRR 77
OFFSHORE (CM/SEC)
ONSHORE
5
26 MRR 77
-5
-10
-15
15
10
0
ONSHORE
5
10
15
1
1
1
60
0
80
-30
0
POLEWARD
-20
POLEWARD
(CM/SEC) EQURTORWARD
30
0
10
20
-20
-30
-10
(CM/SEC) EOURTORWRRD
30
20
10
0
-10
60
80
T
0000
-15
0000
28 MRR 77
OFFSHORE (CM/SEC) ONSHORE
-10
-5
0
5
10
15
-15
(CM/SEC) EQURTORWRRD
0
30
10
20
-30
i
0
30 MRR 77
ONSHORE
OFFSHORE (CM/SEC)
-10
-5
0
5
10
15
20 '
40
CL
w
0
60
80
-30
POLEWRRO
-20
-10
POLEWRRD
0
Figure 29(3).
56
-20
(CM/SEC) EOURTORWRRD
20
30
10
0
-10
JOINT-2. PSS/RGAVE
0000
-15
0
3 APR 77
0000
1 APR 77
OFFSHORE (CM/SEC) ONSHORE
10
5
0
-5
-10
OFFSHORE (CM/SEC)
-5
-10
-15
15
0
ONSHORE
5
10
15
S
,
S
,
60
4
80
-30
0
POLEWRRD (CM/SEC) EOUATORWRRD
30
20
10
0
-10
-20
-30
POLEWRRD
-20
(CM/SEC) EQURTORWARD
30
20
10
0
-10
.
60 80
0000
-15
5 APR 77
i
15
-15
(CM/SEC) EQURTORWARD
0
20
10
30
-30
0
7 APR 77
0000
OFFSHORE (CM/SEC) ONSHORE
-10
-5
0
5
10
OFFSHORE (CM/SEC) ONSHORE
5
10
0
-5
-10
15
20 '
40'
LLI
°60'
80
POLEWRRD
-30
-20
-10
POLEWARD
-20
(CM/SEC) EQURTORWRRD
20
30
0
10
-10
60 '
.
80
Figure 29(4).
57
JOINT-2. PSS/RGRVE
OFFSHORE (CM/SEC)
OFFSHORE (CM/SEC)
ONSHORE
15
-15
(CM/SEC) EQURTORWRRD
30
20
0
10
-30
-5
-10
-15
5
0
11 RPR 77
0000
9 RPR 77
0000
10
-5
-10
0
ONSHORE
10
5
15
1
0
60
80
POLEWRRD
-30
-20
.
-10
0
POLEWRRD
-20
(CM/SEC) EQURTORWRRD
30
20
10
0
-10
20
0
40
60
S
80
0000
OFFSHORE (CM/SEC)
-15
-10
0000
13 RPR 77
15
-15
(CM/SEC) EOURTORWRRD
30
0
10
20
-30
-5
0
r
0
5
10
15 RPR 77
ONSHORE
OFFSHORE (CM/SEC)
ONSHORE
-10
-5
5
0
1
10
15
1
60
80
POLEWARD
-30
-20
-10
POLEWRRD
-20
(CM/SEC) EQURTORWRRO
30
20
10
0
-10
0
r
Figure 29(5).
58
JOINT-2. PSS/RGRVE
0II
0000
-10
-5
ONSHORE
20
-15
(CM/SEC) EOURTORWRRD
0
10
20
30
-30
0
5
10
19 RPR 77
0000
17 APR 77
OFFSHORE (CM/SEC)
15
ONSHORE
OFFSHORE (CM/SEC)
5
10
-10
-5
0
15
I
20
60
80
-30
POLEWRRD
-20
-10
POLEWRRD
-20
(CM/SEC) EOURTORWRRD
10
20
30
0
-10
0
60
80
S
0000
-15
-10
-5
0000
21 RPR 77
OFFSHORE (CM/SEC)
0
0
5
10
-15
15
23 RPR 77
OFFSHORE (CM/SEC) ONSHORE
-10
-5
0
5
10
I
_ _ _J
ONSHORE
1
15
1
60
1
SI
80
-30
0
POLEWRRD
-20
(CM/SEC) EQURTORWRRO
0
10
20
30
-10
-30
POLEWRRD
-20
(CM/SEC) EQURTORWRRD
0
10
20
30
-10
I
1
60
80
Figure 29(6).
59
JOINT-2. PSS/RGRVE
0000
OFFSHORE (CM/SEC)
ONSHORE
-15
(CM/SEC) EQURTORWRRO
0
10
20
30
-30
0
5
10
27 APR 77
ONSHORE
OFFSHORE (CM/SEC)
15
-5
-10
-15
0000
25 APR 77
-5
-10
'0
10
5
15
I
60
S
80
-30
POLEWRRD
-20
-10
POLEWRRD
-20
(CM/SEC) EOURTORWRRD
30
20
0
10
-10
0
20
40
w
60
80
0000
-15
-30
FOLEWARD
-20
0000
29 APR 77
OFFSHORE (CM/SEC) ONSHORE
5
0
10
-10
-5
15
-15
(CM/SEC) EQURTORWARD
0
10
20
30
-30
-10
1 MRY 77
ONSHORE
OFFSHORE (CM/SEC)
-10
POLEWARD
-20
0
r 2060
80
Figure 29(7),
60
-5
0
5
10
15
(CM/SEC) EQURTORWRRD
20
30
0
10
-10
JOINT-2. PSS/RGRVE
0000
-15
-10
-5
0000
3 MRY 77
OFFSHORE (CM/SEC)
0
5
10
5 MAY 77
OFFSHORE (CM/SEC)
ONSHORE
15
-15
-10
-5
0
0
ONSHORE
5
10
15
i
Is
I
60
80
-30
POLEWRRO
-20
(CM/SEC) EQURTORWRRO
0
10
20
30
-10
0
-30
POLEWRRD
-20
(CM/SEC) EQURTORWRRD
0
20
10
30
-10
60
80
0000
-15
7 MRY 77
OFFSHORE (CM/SEC)
-10
0
-5
0
0000
ONSHORE
5
10
-15
15
9 MAY 77
OFFSHORE (CM/SEC)
-10
-5
0
ONSHORE
5
10
15
60
80
-30
0
POLEWRRD
-20
(CM/SEC) EQURTORWRRD
0
10
20
30
-10
-30
POLEWRRO
60
80
Figure 29(8).
61
-20
(CM/SEC) EOURTORWRRO
0
10
20
30
-10
JOINT-2, PSS/RGRVE
0000
-15
i
0
0000
11 MAY 77
OFFSHORE (CM/SEC) ONSHORE
5
-10
0
10
-5
13 MAY 77
OFFSHORE (CM/SEC)
15
-15
(CM/SEC) EQURTORWRRD
0
10
20
30
-30
-10
-5
0
ONSHORE
5
10
15
I
I
U
60
80
-30
0+
20
POLEWRRD
-20
1
-10
f
1
POLEWRRD
-20
1
1.
=40
a-
w
60
80
Figure 29(9)0
62
(CM/SEC) EQUATORWARD
30
20
0
10
-10
I
I
l
1
JOINT-2.
0000
PS/MILK
0000
8 MRR 77
OFFSHORE (CM/SEC) ONSHORE
5
10
-10
-5
0
15
-15
POLEWRRO (CM/SEC) EOURTORWRRO
-20
-10
20
30
0
10
-30
-15
..j
OFFSHORE
-10
0
-30
POLEWRRD
-20
-5
10 MRR 77
(CM/SEC) ONSHORE
5
10
0
(CM/SEC) EOURTORWRRO
30
20
0
10
-10
.
0
0000
-15
0000
12 MRR 77
OFFSHORE (CM/SEC)
-10
-5
0
15
-15
(CM/SEC) EOURTORWRRO
0
20
30
10
-30
5
10
14 MRR 77
OFFSHORE (CM/SEC)
ONSHORE
-10
15
-5
0
ONSHORE
5
10
15
0
20
80
100
120
POLEWRRD
-30
0T
-20
-10
(CM/SEC) EOURTORWRRD
POLEWRRO
0
10
20
30
-10
-20
(o
20
100
120
4
Figure 30(1).
64
JOINT-2.
0000
0000
16 MAR 77
OFFSHORE (CM/SEC) ONSHORE
10
0
5
-10
-5
-15
PS/MILD
18 MAR 77
OFFSHORE (CM/SEC)
15
-1S
(CM/SEC) EOURTORWRRD
20
30
-10
0
10
-50
-5
-10
0
ONSHORE
10
5
15
0i
20
80
100
120
POLEWRRO
-30
-20
POLEWRRD (CM/SEC) EOURTORWRRD
0
10
-10
-20
-30
-40
u
1
ti
0000
-15
0000
20 MAR 77
OFFSHORE (CM/SEC) ONSHORE
-10
-5
0
5
10
15
-15
(CM/SEC) EOUATORWRRO
0
20
30
10
-30
22 MAR 77
ONSHORE
OFFSHORE (CM/SEC)
-10
-5
0
5
10
15
0
20
r
4060
0
80
100
120
POLEWARD
-30
0 t
-20
-10
POLEWRRO
-20
(CM/SEC) EOURTORWRRD
0
10
20
30
-10
I
20
r
40
x 60
O
80
100
}
120
Figure 30(2).
65
JOINT-2.
0000
-15
0
0000
24 MRR 77
OFFSHORE (CM/SEC)
-5
-10
PS/MILR
0
ONSHORE
5
10
15
26 MRR 77
OFFSHORE (CM/SEC)
-15
-5
-10
0
ONSHORE
5
10
15
1
20
s
40
x 60
80
100
120
0-30
POLEWRRD
-20
(CM/SEC) EOURTORWRRD
0
10
20
30
-10
(CM/SEC) EQUATORWARO
-10
0
10
20
30
POLEWRRO
-30
-20
20
80 1
100
120
0000
-15
OF
28 MAR 77
OFFSHORE (CM/SEC) ONSHORE
-10
-5
0
5
10
i
0000
-15
15
30 MRR 77
OFFSHORE (CM/SEC) ONSHORE
-10
-5
0
5
10
L
15
+
20
40
C
80
100
120
-30
0
POLEWARO
-20
(CM/SEC) EOURTORWRRD
0
10
20
30
-10
-30
POLEWRRO
-20
20
80
120
Figure 30(3).
66
(CM/SEC) EOURTORWRRO
0
10
20
30
-10
JOINT-2.
0000
-20
10
(CM/SEC) EOURTORWRRO
0
10
20
30
-30
-5
0
5
3 APR 77
OFFSHORE (CM/SEC)
ONSHORE
-20
-10
-15
0000
1 APR 77
OFFSHORE (CM/SEC)
n
PS/MILR
-10
-15
-5
ONSHORE
0
5
10
20
40
F
= 60
0
80
100
120
-30
POLEWARO
-20
-10
POLEWRRD
-20
(CM/SEC) EOURTORWRRD
30
0
20
-10
10
0
0000
-15
5 APR 77
OFFSHORE (CM/SEC) ONSHORE
-10
-5
0
5
10
0000
15
-15
(CM/SEC) EOURTORWRRD
0
10
20
30
-30
0
7 APR 77
OFFSHORE (CM/SEC)
ONSHORE
-10 -5
0
5
10
15
20
r
40
80
100
120
-30
0
POLEWRRO
-20
-10
I
_
4
POLEWRRD
I
Figure 30(4)0
67
-20
(CM/SEC) EOURTORWRRO
0
10
20
30
-10
ir
JOINT-2.
-30
POLEWRRO
-20
OFFSHORE (CM/SEC)
ONSHORE
15
-15
(CM/SECT EOURTORWRRD
30
20
0
10
30
-5
0
5
11 RPR 77
0000
9 RPR 77
0000
OFFSHORE (CM/SEC)
-10
PS/MILK
10
-5
-10
POLEWRRD
-10
-20
0
ONSHORE
10
5
15
(CM/SEC) EOURTORWRRD
30
20
10
0
-10
20
100
120
0000
-15
0000
13 RPR 77
OFFSHORE (CM/SEC)
ONSHORE
-10
-5
10
0
5
15
-15
(CM/SEC) EOURTORWRRD
20
30
0
10
-30
r
0
15 APR 77
OFFSHORE (CM/SEC)
-10
-5
0
ONSHORE
5
10
15
i
%
20
1004
120
-30
POLEWRRD
-20
POLEWRRD
-10
-20
0
20
i
40
E
0
°
60
80
100
120
Figure 30(5).
68
(CM/SEC) EOURTORWRRO
30
0
10
20
-10
JOINT-2.
0000
0
-5
0000
17 APR 77
OFFSHORE (CM/SEC)
-10
PS/MILK
ONSHORE
20
-15
(CM/SEC) EOURTORWRRD
20
30
0
10
-30
0
5
10
15
19 APR 77
ONSHORE
OFFSHORE (CM/SEC)
-10
-5
0
5
10
15
I
20
L
40
80
100
120
POLEWRRO
-30
-20
-10
POLEWARO (CM/SEC) EOURTORWARO
30
20
0
10
-20
-10
0
20
100
w
I-
120
0000
-15
21 APR 77
0000
OFFSHORE (CM/SEC) ONSHORE
-10
-5
0
5
10
15
-15
(CM/SEC) EOURTORWRRD
0
20
10
30
-30
0
23 APR 77
OFFSHORE (CM/SEC)
-10
-5
0
ONSHORE
5
10
15
20
80
100
120
POLEWRRD
-30
-20
-
-10
0
POLEWARD (CM/SEC) EQURTORWARD
-20
-10
0
10
20
30
20
4
80
100
120
)
Figure 30(6).
69
0000
-15
-5
-10
0
0000
25 RPR 77
OFFSHORE (CM/SEC)
0
5
10
27 RPR 77
ONSHORE
OFFSHORE ICM/SEC)
ONSHORE
15
-15
-5
-10
0
10
5
15
1
20
H
40
6o
tool
4
4
120
POLEWRRO
-30
-20
(CM/SEC) EOURTORWRRO
-10
0
10
20
30
(CM/SEC) EDURTORWRRO
20
30
40
50
POLEWRRD
-10
0
10
0
so100
120 A
0000
-15
29 RPR 77
0000
OFFSHORE (CM/SEC) ONSHORE
-10
-5
0
5
10
.
0
15
-15
(CM/SEC) EOURTORWRRD
0
10
20
30
-30
20
1 MRY 77
OFFSHORE (CM/SEC)
-5
-10
0
ONSHORE
5
10
15
.
1
40
60
W
0
80
100
120
-30
0
POLEWRRO
-20
-10
-20
-10
I
00,
1
20
40
80
100
120
Figure 30(7)0
70
.0
(CM/SEC) EOURTORWRRD
0
10
20
30
POLEWRRO
.
JOINT-2.
0000
-15
0000
3 MRY 77
OFFSHORE (CM/SECI ONSHORE
-10
-5
0
5
10
20
5 MAY 77
ONSHORE
OFFSHORE (CM/SEC)
i
0
PS/MILR
15
-15
30
-30
-5
-10
0
5
10
15
80
100
1204
-30
POLEWRRD
(CM/SEC) EQURTORWRRD
-10
-20
0
0
10
20
(CM/SEC) EOURTORWRRD
POLEWARD
-10
-20
0
10
20
30
20
40
80
100
120
0000
0
5
7 MAY 77
OFFSHORE (CM/SEC) ONSHORE
-10
-5
0
5
10
0000
15
-15
9 MAY 77
OFFSHORE (CM/SEC)
-10
-5
0
ONSHORE
5
10
15
i
20,
40
C
60
80
100
120
+
POLEWRRD
-10
0
0
(CM/SEC) EOURTORWRRD
10
20
30
40
50
-F
-30
POLEWRRO
-20
I
Figure 30(8).
(CM/SEC) EOURTORWRRO
0
10
20
30
-10
JOINT-2.
0000
-15
PS/MILA
0000
11 MAY 77
OFFSHORE (CM/SEC) ONSHORE
-10
-5
0
5
10
0
15
E
13 MAY 77
OFFSHORE (CM/SEC)
-10
-15
+
r
-5
0
ONSHORE
5
I
10
15
i
20
G.
100
120
-30
0I
POLEWRRD
-20
(CM/SEC) EDURTORWRRO
0
10
20
30
-10
.I
-30
POLEWRRO
40
E
x 60
100
120
Figure 30(9).
72
-20
(CM/SEC) EOURTORWRRD
0
20
30
10
-10