`College of
LIBRARY FEB 19 1988
HATFIELD MARINE SCIENCE CENTER
OREGON STATE UNIVERSITY
NEWPORT, OREGON 97365
OCEANOGRAPHY
GIBRALTAR EXPERIMENT
CURRENT MEASUREMENTS IN THE
STRAIT OF GIBRALTAR
OCTOBER 1985.OCTOBER 1986
by
R. Dale Pillsbury, D. Barstow,
J. S. Bottero, C. Mtlleiro, B. Moore,
G. Pittock, D. C. Root, J. Simpkins III,
R. E. Still and H. L. Bryden
Office of Naval Research: N0001484C0218,
NRO83.102
OREGON STATE UNIVERSITY
Data Report4i-29 I3 I
Reference 439- Q7 -..9
December, 1987
Approved for public release, distribution
unlimited.
Unclassified
SECJRITY CLASSIFICATION OF *..IS PAGE /N7.... D.:. Fnt-..dJ
READ tNSPL
FS
BEFORE COMPLETING FORM
REPORT DOCUMENTATION PAGE
REPORT NUMBER
I
2. GOVT ACCESS:::; NO
3.
RECIPIENT'S CATALOG NUMBER
Data Report 87-29
Refprpncp 11Q
6.
-I TLE r.nd Subtitle)
S. TYPE OF REPORT 6 PERIOD COVERED
Gibraltar Experiment:
7.
Data Report
Current measurements in
th e S tra it s o f G ibraltar
6. PERFORMING ORG. REPORT NUMBER
AUT.IDA(.)
6. CONTRACT OR GRANT NUMBER(.)
R. D. Pillsbury, D. Barstow, J. S. Bottero, C.
Milleiro, B. Moore, G. Pittock, D. C. Root,
J. Simpkins III, R. E. Still, & H. Bryden
N00014-84-C0218
10. PROGRAM ELEMENT. PROJECT. T AS.<
AREA 6 WORK UNIT NUMBERS
9. PERFORMING ORGANIZATION NAME ANO ADDRESS
College of Oceanography
Oregon State University
Corvallis, Oregon
NR083-102
97331
Q. REPORT DATE
11. CONTROLLING OFFICE NAME ANO ADDRESS
December 1987
Office of Naval Research
Ocean Science & Technology Division
Arlington, Virginia
13- NUMBER OF PAGES
284
22217
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*6. SUPPLEMENTARY NOTES
19. KEY WORDS (Contin... on r...... Id. It n.c....ry ..nd Id.ntily by block numb..)
Physical Oceanography
Current Meter Measurements
Straits of Gibraltar
20. ABSTRACT (Conttnu. on r...... .Id. It n.c.....y.nd Id.ntlfy by block n ...6..)
As a part of the Gibraltar Experiment, eight subsurface moorings equipped
with twenty-eight current meters were installed in the Strait of Gibraltar from
October 1985 to April 1986. Another four moorings with fifteen current meters
were installed from May 1986 to October 1986. Velocity, temperature, pressure,
and conductivity were recorded at half-hourly intervals.
Statistics and
various time plots of the time series are presented in this report.
FORM
OD I IAN 73
473
EDITION OF I NOV {S it OSSOLCTE
S/N 0102-014-6601 1
Unclassified
6000RITY CLASSIFICATION OF THIS PAGE (+7.n D.t. Ln4«.4)
SECURITY CLASSI ICATION OF THIS P
E (When
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SECURITY CLASSIFICATION Or THIS PAG[(Ob.n Dates Ent+nd)
GIBRALTAR EXPERIMENT
CURRENT MEASUREMENTS IN THE STRAIT OF GIBRALTAR
OCTOBER 1985
-
OCTOBER 1986
by
R. Dale
J.
Pillsbury, D. Barstow, J. S. Bottero, C. Milleiro
B. Moore, G. Pittock, D. C. Root
Simpkins III, R. E. Still, and H. L. Bryden
Office of Naval Research
N00014-84-C0218
NR083-102
Approved for public
release:
distribution unlimited
Data Report 87-29
Reference 139
December 1987
College of Oceanography
Oregon State University
Corvallis, Oregon 97331
TABLE OF CONTENTS
INTRODUCTION
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Sampling and Processing
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Data Presentation
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Acknowledgements
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References
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Appendix
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DATA PRESENTATION
C-1
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C-2
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C-2B
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C-3
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C-3B .
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C-4
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C-4B
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C-7
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239
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C-8
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C-9B
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.267
1
The Gibraltar Experiment is a many faceted study of the dynamics
and kinematics of the exchange between the Atlantic and Mediterranean
through the Strait of Gibraltar (Bryden and Kinder, 1986). Net
evaporation over the Mediterranean basin forces a surface inflow of
Atlantic water and a nearly compensating deep outflow of saltier
Mediterranean water through the Strait which together maintain the
water and salt budgets for the Mediterranean Sea (Lacombe and Richez,
1982). The central hypothesis of the Gibraltar Experiment is that the
narrowness and shallowness of the Strait combined with the dynamics of
a two-layer flow controls the amount of exchange through the Strait.
The Gibraltar Experiment field program was designed to measure the
exchange between the Atlantic and Mediterranean and to diagnose the
dynamical processes dominating the two-layer flow through the Strait
of Gibraltar.
A central component of the Gibraltar Experiment was the year-long
moored array of current meters whose-measurements are described in
this report. Current meter moorings were maintained from October 1985
to October 1986 at a total of 9 locations in the Strait of Gibraltar.
The purposes of these moored current meter measurements were to
provide a year-long time series of the exchange across the sill
section in order to examine its temporal variability over tidal to
seasonal time scales; to determine the cross-strait structure of the
velocity in both the inflowing Atlantic layer and the outflowing
Mediterranean layer, and of the interface between the layers; to
examine the along-strait propagation characteristics of the
fluctuations in each layer; and to investigate the roles of friction,
2
mixing, rotation and nonlinear processes in the dynamics of the flow
through the Strait of Gibraltar.
In October 1985, eight current meter moorings (Figure 1, numbers
C-1 through C-8) were deployed on a cruise aboard the Spanish naval
vessel MALASPINA. Three moorings (C-1, C-2, C-3) across the sill
section were densely instrumented in the vertical (Figure 2) in order
to measure the inflow of Atlantic water and the outflow of
Mediterranean water across this transect of minimum cross-sectional
area. Five additional moorings (C-4,C-5,C-6,C-7 and C-8) were deployed
along the axis of the Strait (Figure 3) in order to measure the
characteristics of the flow at representative locations throughout the
Strait. Mooring 4 is at a secondary sill, sometimes called Spartel
sill, which is the last obstacle to the Mediterranean outflow before
it cascades down into the Atlantic; mooring 6 is at the narrowest
section of the Strait, sometimes called Tarifa narrows; mooring 5 is
between the sill and the narrows; mooring 7 is at the eastern entrance
of the Strait; and mooring 8 is in the deep Tangier basin between the
sill section and the secondary Spartel sill. On each of these
alongstrait moorings a current meter was deployed in the Atlantic
layer at a nominal depth of 75 m and a current meter in the
Mediterranean layer at a nominal depth of 230 m.
Because of the rugged
bottom topography, particularly on the sill section, and the strong
currents, actual instrument deployment depths were often different
from their intended depths (Table 1).
The Strait of Gibraltar is a harsh environment for current meter
moorings with its high currents, high salinity and high oxygen
5°40'
6°00'
5°20'
36°10'
36°10'
35°50'
35°50'
N
6°00'
Figure 1.
5°40'
5°20'
Site location of current meter moorings during the Gibraltar experiment, October 1985 to
October 1986. Duration of each mooring given in Figure 4.
W
3
I
-Ph
75 m
Flototion
S4
100 m
Aonderoo
120m
130 m
Aonderoo
170 m
180m
Aonderoo
-5-
300m "\ \
100 m
1
4 km
Figure
180m
T
2.
Up
North
Mooring schematics of current meter moorings installed along the sill section of the Strait.
Depths given are intended depths.
Figure 3.
Mooring schematics of current meter moorings installed along the axis of the Strait.
Depths given are intended depths.
4
5
Flotation
75m
Aanderaa
78 m
0
Flotation
Flotation.
S4
Aonderoo
6
Flotation
85 m
S4
75
m2
7
Flotation
0 Flotation
Aonderoo
70 m 0 Aanderaa
Aonderoo
Aanderaa
Aonderoo
170 m
Aonderoo
173 m
200m
230 m
Aonderoo
Aonderoo
Aonderoo
Aonderoo
Aonderoo
240 m
Aonderoo
230 m
Aonderoo
100 m
t
10 km
ALONG - STRAIT
CURRENT METER ARRAY
/_\,
99(1 m
1986
1985
NOV
OCT
l
t
I
l
l
d
l
1
1
1
1
1
1
1
1
1
t
I
I
I
I
MAR
FEB
JAN
DEC
1
I
d
I
l
i
t
APR
MAY
JUN
JUL
OCT
SEP
AUG
II
M
PERIOD 11
PERIOD I
C-1
V
C-2B
C-2 mooring line parted prematurely
C-3
--V
C-3B mooring released prematurely
C-4B
C-4 mooring line parted prematurely
V
C-5 not recovered
V
C-6 not recovered
V
C-7 mooring line parted prematurely
V
C-8 mooring line parted prematurely
C-9B
I
I
I
I
I
I
I
I
I
In
1-1-IT-T
1
I
11
DATA RETURN FROM GIBRALTAR MOORINGS
Figure 4.
Timeline showing maximum duration of good data from each mooring.
i
I
U-1
I
7
Mediterranean water, and active fishing, shipping and naval
operations. Typical water velocity
is 200
cm s 1, with tidal
fluctuations appearing to be relatively depth-independent. The maximum
measured current speed was 307 cm s
1.
To help design current meter
moorings for the Strait of Gibraltar, the Woods Hole Oceanographic
Institution's Buoy Group carried out a two-week pilot experiment in
Spring 1984 near the site of mooring C-1 on the northern side of the
sill section. Based on their experience, it was concluded that
six-month moorings were feasible; that the mooring wire should be
faired above 230 m depth; that buoyancy elements should be isolated
large spheres rather than the more standard clusters of small glass
balls to reduce drag; and that smaller, low-drag current meters should
be used in the upper parts of the moorings whenever possible. The
initial moored array (Figures 2 and 3) reflects these considerations.
Despite the care in mooring design, only 3 of the 8 initial
moorings (moorings C-1,C-2 and C-3) were recovered completely by the
end of the initial six-month deployment (Figure 4). Parts of the other
five moorings were recovered by Spanish and Moroccan fisherman and by
the USNS LYNCH on the recovery cruise in April 1986. A detailed
account of each mooring's history is given in the Appendix. The
principal problem appears to have occurred in the lower part of the
mooring wire which was unfaired and unjacketed: high currents cause
mooring wire vibration which flakes off the wire's galvanizing
material and a galvanic action then corrodes the wire until it breaks
under tension.
In May 1986, four moorings (Figure 1, moorings C-2B, C-3B, C-4B,
8
and C-9B) were deployed for the second half of the year-long
experiment on a cruise aboard Spanish naval vessel TOFINO. The
problems from the first six-month deployment limited the size of the
array for the second half to only four moorings. This second array was
designed to be complemented by two Doppler acoustic profiling current
meters deployed by Dr. Neal Pettigrew on the northern side of the sill
section (extending the line of moorings C-3B and C-2B across the sill
section) and on the northern side of Tarifa narrows across from
mooring C-9B. For these current meter moorings, jacketed wire without
fairing was used throughout each mooring. Of these moorings, only C-3B
failed prematurely due to stress fracture of the tension bar on the S4
current meter at the top of the mooring. The final three moorings were
recovered aboard USNS LYNCH (Figure 4) in October 1986, although
extreme vibration limited the duration of some of the instrument time
series.
Nearly all of the current meters deployed in the Gibraltar
Experiment were Aanderaa model RCM4 or RCM5 units which measured
temperature, pressure and conductivity in addition to current speed
and direction. Pressure is important for monitoring mooring motion and
temperature and conductivity are important for determining the
salinity which identifies whether the current meter is in the Atlantic
water, Mediterranean water, or the interfacial region between them. A
few of the new Inter Ocean model S4 electromagnetic current meters were
deployed on the upper parts of the moorings. The first scientific
deployment of an S4 current meter had occurred during the pilot
experiment in Spring 1984. As with all new instruments, there is a
9
learning phase in which unexpected problems occur. The four S4 current
meters deployed in Ocotober 1986 were all programmed for rapid
sampling intervals. In contrast with standard current meters, such
rapid sampling in an electromagnetic current meter consumes much
battery power and, as a result, these S4 current meters were basically
out of power shortly after deployment in the Strait. The single S4
current meter deployed in the second half of the experiment suffered a
break in its tension bar about three weeks after deployment and the S4
was lost. Hence, the S4 current meters yielded essentially no usable
data during the Gibraltar Experiment.
The Gibraltar Experiment is one of the first field programs in
which conductivity and hence salinity measurements constitute a
central component of the moored time series. A scatter plot of east
velocity versus salinity for the current meter at 110 m depth on
mooring C-3 (Figure 5) shows the importance of salinity measurements.
This location near the interface between Atlantic and Mediterranean
waters has a small time-averaged eastward
velocity of 8 . 6 cm s
1;
however, the interface between Atlantic and Mediterranean layers
regularly moves up and down past this location at a semidiurnal
period, and there are substantial velocities when the current meter is
in either of the layers. The scatter plot shows that when the current
meter is in the Atlantic water, S<36.5 ppt, the typical velocity is
eastward at 50 cm s-1; when the current meter is in the Mediterranean
water, S>38.0 ppt, the typical velocity is westward at 125 cm s_1; in
the interfacial region, velocities may be either eastward or westward.
The salinity measurements allow us to profile both the Atlantic inflow
I
I
35.5
1
I
I
1
1
I
110 m at C-3
36.0-I
36.5
CL
0-
+#
37.0
+t#
; '
+
>1
C:
+
*+ +1Ir +
+ +* + C.
+
37.5-'
-yaT{y7a
+ ++ ,
++
++$+#r+
+
#. is
t
38.0 -I
a
+4i
a
U
+r+
+
+
++
++ + *4+#
+
+
.++r
+
T + *+44, ++
*
++
+
r+
++++ +
41*0+4+1
+a
it M. * #+ + + ++
+++ ++ I.
*+4; ;+ +
++
++q+
+ +
+
q
+++++
a
+ IV
a+
4#
t J++4
TV
+++
+*+
4*
++
+
+
++ +
f t ++
+
38.5I
1
-250
-200
-150
-100
-50
0
50
100
150
200
East Velocity (cm S-1)
Figure 5.
Scatter plot of East velocity (u-component) versus Salinity taken from
110 meters at Mooring c-3, 22 October 1985 to 21 April 1986.
250
11
* GIBRALTAR MOORING 3 *
OCT NOV
1985
DEC
FEB
JAN
MAR
* GIBRALTAR MOORING 2B *
APR
MAY
1986
JUN
JUL
AUG
SEP
OCT
100
50 a°,
&A 64A
LA
- W_
0
IV
-50y
-100
°.-
100
100
50
0.
N -50
:
50 °
rA
-50N
-100
-10011,
100
0
50
0
0
N -50
W -100
-10041
100
°
co
c~n
100
50
0
:
50 ago
-50
-50
-
W-100
100
100
:
50
0
50 M
vi -50
-SOy
M
N
N
w-100
-1001
j vv
N
100
50 0''
0 .1
50
0
-50
-50N
-100
-100is
OCT NOV DEC
1985
Figure 6.
JAN
FEB
1986
Time series of
MAR APR
MAY
LLP filtered
JUN
JUL
AUG
SEP
OCT
u-component from Moorings C3 & C-2B.
12
MOORING
RCM #
DEPTH
N
PRINCIPAL
AXIS DIRECTION
(deg true)
(M)
MAJOR AXIS
VAR
MEAN
MINOR AXIS
VAR
MEAN
(cm/sec)(cm2/see t) (cm/sec) (cm2/see t)
C-1
5646/25
1968/44
5647/27
5649/19
143
156
167
215
9315
9315
9298
9315
98.5
111.4
100.5
106.8
-11.1
-15.0
-15.5
-11.4
5465.6
4831.1
4451.5
1533.1
11.0
11.3
13.3
1.0
282.1
252.6
246.8
158.2
C-2
6590/16
751/61
6593/14
1533
1532
1532
-5.2
77.9
-15.4
78.3
-25.7
75.2
(no speed record)
-54.1
60.7
48.6
-38.9
10215.1
8337.9
9895.0
8.4
5.2
8.4
359.8
391.9
398.0
5648/27
1241/37
123
143
153
191
254
306
4753.6
2818.6
1.7
3.9
376.1
342.6
C-2B
5649/20
6590/17
6593/15
5886/20
5648/28
1241/38
90
112
135
181
233
299
3948
1500
3966
1979
4413
6563
80.7
76.2
73.8
70.2
64.3
50.0
13.7
-1.5
-29.2
-51.0
-60.5
-46.2
10361.5
9696.3
9527.9
6678.3
3748.6
2296.1
4.1
-0.6
5.4
2.2
-5.6
-5.5
1019.1
852.3
311.4
549.8
502.0
264.6
C-3
5643/26
5644/28
5645/25
110
140
179
8715
8717
8717
82.0
79.8
68.9
9.9
-3.9
-24.7
9269.9
7550.0
3485.7
-9.0
-4.9
344.2
359.4
0.8
362.5
C-3B
5643/27
5644/29
5645/26
102
127
172
1263
1091
1374
85.9
81.7
74.7
13.8
10.0
-6.9
7756.0
5577.0
1921.7
-8.6
-5.3
0.5
277.6
420.9
270.1
C-4
1541/48
67
1075
73.3
25.4
1316.0
-1.3
53.4
C-4B
1541/49
1968/45
6879/2
218
296
340
456
333
6548
66.3
59.9
65.1
-41.4
-91.0
-86.0
2802.0
417.4
770.9
-7.0
-13.0
-19.9
402.7
312.0
104.6
755/58
1236/45
54
193
7616
7617
79.2
63.6
54.2
2088.6
3.4
278.4
-22.4
949.8
0.8
73.9
5886/19
C-7
1532
1533
C-8
6877/1
30
6332
74.6
36.6
3088.6
1.7
157.1
C-9B
5647/28
5646/26
58
4139
6633
76.1
74.8
57.9
28.3
2252.6
3051.7
6.2
-9.2
737.1
272.2
159
Principal axis direction, orientation and
Table 1.
data for each record in the Gibraltar Experiment.
variance of unfiltered
half-hourly
13
MOORING
RCM #
DEPTH
N
(deg true)
(M)
C-1
PRINCIPAL
AXIS DIRECTION
MAJOR AXIS
MEAN
VAR
MINOR AXIS
MEAN
VAR
(cm/sec)(cm2/sec t)
(cm/sec) (cm2/sec t)
238.3
186.1
169 8
46.7
10.6
10.8
9.9
11.9
12 9
12 0
2.1
5.5
568.6
309.2
355.0
8.5
7.7
11.7
14.8
8.3
9.2
80.7
53.5
4.5
15.4
20.2
34.7
5646/25
1968/44
5647/27
5649/19
143
156
167
215
766
766
765
766
96.1
109.2
-11.5
-15.4
99 7
-15 8
112.2
-11.3
6590/16
751/61
6593/14
5886/19
5648/27
1241/37
123
143
153
191
254
306
117
117
117
78.2
-5.6
87.4
-14.5
82.1
-24.4
(no speed record)
64.0
-53.1
66.9
-35.1
C-2B
5649/20
6590/17
6593/15
5886/20
5648/28
1241/38
90
112
135
181
233
299
318
114
320
154
357
536
75.3
71.6
79.6
80.6
45.8
51.1
13.1
-3.4
-28.8
-50.7
-55.5
-46.4
330.1
314.9
170.0
162.5
110.3
126.1
5.2
-0.3
8.5
11.3
-24.8
-4.7
52.2
30.7
7.0
17.1
24.4
6.7
C-3
5643/26
5644/28
5645/25
110
140
179
717
717
717
99.3
92.7
71.7
6.7
-4.7
-24.6
397.4
320.4
166.2
-11.6
-3.9
2.1
30.5
41.2
13.4
C-3B
5643/27
5644/29
5645/26
102
127
172
95
81
105
94.7
99.3
80.3
11.9
8.2
-6.7
187.2
105.6
54.6
-9.9
-7.0
1.4
5.4
7.5
6.2
C-4
C-4B
1541/48
1541/49
1968/45
6879/2
67
218
296
340
80
28
18
538
66.9
67.9
44.3
78.5
24.9
-34.2
-84.3
-88.3
20.9
676.1
35.4
116.9
1.1
-6.5
-37.3
0.5
2.1
13.1
20.2
3.9
C-7
755/58
1236/45
54
193
625
625
79.3
54.4
54.1
-22.3
734.1
57.3
3.3
-2.8
25.6
9.6
C-8
6877/1
30
518
62.8
35.6
100.3
9.1
14.8
C-9B
5647/28
5646/26
58
335
543
69.0
72.2
56.4
28.5
140.8
161.7
13.3
-8.2
61.0
C-2
Table 2.
159
117
117
.
.
.
.
.
7.8
Principal axis direction , orientation and variance of Filtered six
six-hourly data for each record in the Gibraltar experiment.
14
and the Mediterranean outflow and to examine the nature of the
exchange through the Strait.
Despite all of the mooring problems and instrument malfunctions,
a remarkable set of moored current meter measurements has been made in
the Strait of Gibraltar. Statistics for the 31 current meter records
summarize these year-long, three-dimensional measurements of the
inflowing Atlantic water and the outflowing Mediterranean water,
across the sill section and along the axis of the Strait (Tables 1 and
2). The year-long time series at the Gibraltar sill exhibit vertically
coherent, low-frequency fluctuations in the Mediterranean outflow
(Figure 6) as well as strong tidal fluctuations. Further analysis of
these current meter records should enable detailed investigation of
the physical processes which dominate the dynamics of the two-layer
exchange through the Strait of Gibraltar.
SAMPLING AND PROCESSING INFORMATION
All moorings consisted of Aanderaa RCM 4 or RCM 5 current meters
equipped to record speed, direction, temperature, conductivity, and
pressure. The speed record from Aanderaa meters is based on the rotor
count during the sampling interval, thirty minutes. The nominal
threshold of the Aanderaa speed sensor is 1.75 cm s
zero in the speed sensor is set equal to 0.8 cm s
1.
In processing, a
i.e., half the
threshold. Direction, temperature, pressure, and conductivity are
instantaneous measurements at the end of the sampling interval.
Data from the current meter tapes are translated into bit numbers
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
15
routinely calibrated before and after deployment. The dated raw file,
together with the calibration information,
is then processed into
metric units. Smith, et al, (1986) reviewed the calibration procedure
used with Aanderaa current meters. To form the LLP (6-hourly) records,
the half-hourly data were first converted to low-passed (LP) data
(hourly values, half-power at 2.9 hours). These data were interpolated
to give data points on the hour. The LP data records were then used to
form low-low passed (LLP) files with a program that low pass filters
(half-power at 46.6 hours) the hourly data to remove the diurnal and
shorter period tidal energy and any inertial frequency energy. Denbo,
et al, (1984).
Each current meter recorded temperature, pressure, and
conductivity (in addition to current speed and direction). From these,
salinity time series were calculated using an algorithm from Fofonoff
and Millard (1983). The resulting salinities were them compared with
values obtained by other means. It is known that salinities in the
Strait of Gibraltar range up to a maximum of about 38.4 ppt in the
heavier Mediterranean outflow water. The numbers obtained from the
current meter data occasionally exceeded this value, and in other
cases were much too low. We attribute the discrepancies mostly to
drift in the response of the Aanderaa conductivity sensors. All of the
sensors were calibrated shortly before the experiment, but many of
them appear to have drifted out of calibration, either before
deployment or in situ.
Our remedy was to adjust each affected salinity series so that
its maxima lay at about 38.4 ppt. The first step in the procedure was
16
to divide the series into consecutive 4-day segments. Second, the
maximum salinity in each segment was identified. Third, a
second-degree curve - salinity as a function of time - was fit to the
maxima, using a least-squares technique. Fourth, at each point of the
salinity series the difference between this curve and 38.4 was
subtracted from the series. The result is a series whose maxima are
close to 38.4 ppt. We believe these salinities are sufficiently
accurate for many purposes. Records with corrected salinities are
noted on the plots and statistic pages.
Depths of the meters were obtained by from the unfiltered data by
converting meters to decibars using a relationship developed by
Professor J. L. Reid of Scripps:
z(m) = (0.992446)P - (2.28717x10- 6)P2 +(2.08213x10
11)P3
This equation is based on a world ocean average density profile.
Minimum, rather than average, depths were used.
Occasional problems appear in the data as repeated bit numbers,
isolated spikes, absence of data,or short runs of unexplainably
erratic data. Problem areas of only a few cycles are corrected by
linear interpolation; those longer than a few hours are bridged. The
data gaps were bridged using Anderson's (1974) algorithm for a
predictive filter which utilizes the spectral characteristics of the
preceding data (Smylie et al., 1973; Ulrych et al., 1973).
All questionable data have been eliminated unless a note to the
contrary is included on the statistics page. In general the data gaps
of a few days or less are filled and those of greater duration are
17
left as missing values.
DATA PRESENTATION
In this report, each of the current meter records is described to give
the reader an overview of the duration of the measurements, the
statistics for each variable, the frequency content of the
variability, and some representative time series of the current,
temperature, pressure and salinity observations.
The data are organized by mooring location. Each section begins
with a timeline showing the instrument depths for each mooring period,
and the duration of good data from each sensor: speed (s), direction (o),
temperature (T), pressure (P), and conductivity (C).
The page of statistics gives the mean, variance, and extrema for
speed (s), eastward (u) and northward (v) components of the current,
temperature (T), pressure (P), conductivity (C),
amd sainity (S). It
also includes information about location, dates of installation and
recovery, bottom depth, notes about the quality of each record, and
unusual events that may have happened to the whole mooring. Separate
pages for unfiltered, and filtered (LLP) information are provided.
The presentation of the half-hourly unfiltered data begins with
histograms, scatterplots, and progressive vector diagrams. The histograms
of speed, direction, temperature, pressure and salinity show the
frequency of occurrence versus amplitude. The scatter diagrams show
the distribution of hourly or half-hourly values of speed and
direction. For clarity,
the low speeds
(<
1.5 cm s
1
)
have been
excluded from these plots. The progressive vector diagrams are
obtained by placing the velocity vectors tail-to-head to show the path
18
that a particle would travel in a perfectly homogenous flow. The
squares mark the beginning of each month. Kinetic energy spectra of u
and v; variance density spectra of pressure, temperature, and salinity
conclude the presentation of unfiltered half-hourly data. Spectra from
156m, 167m, and 211m at Mooring C-1 have an apparent spike at high
frequency. This is really only a variation of one bit in an otherwise
nearly constant time series. It is low amplitude, high frequency noise
inherent in the measurement aparatus, and should not be interpreted as
significant.
LLP and LP filtered data are presented next as time series plots.
There are two plots for each current meter: all variables (velocity
vectors, u, v, temperature, pressure, conductivity and salinity) at
each depth on the mooring, and each variable (with the exclusion of
conductivity) at all depths.
The velocity vectors were all rotated 90 degrees
counterclockwise, North is indicated on the plot. Every other stick
was plotted. The horizontal scale is the same for both periods. An
effort has been made to keep the vertical scales the same, but it was
not always possible to do so and still present the data in a
reasonable manner.
The records from Moorings C-2, C-3B, and C-4 were too short to
present on the time-scale chosen for the LLP filtered time-series
data. Therefore, the time-series data from these moorings have only
been converted to the LP (hourly) format for the plots. Data from the
remainder of the moorings are all from six-hourly LLP filtered
records.
19
ACKNOWLEDGEMENTS
Dr. Dennis Conlon, Program Manager at the Office of Naval
Research, provided constant encouragement and invaluable logistical
help in carrying out the moored array measurements. The officers and
crews aboard the Spanish Naval vessels MALASPINA and TOFINO, and the
USNS LYNCH enthusiastically participated whenever necessary in the
mooring operations at sea. Dr. Thomas Kinder selflessly organized the
two cruises aboard the USNS LYNCH.
Dr. Khribeche of the National
Society for the Study of the Strait (SNED) and CMD Tanari of the Royal
Moroccan Navy were instrumental in returning the equipment recovered
by Moroccan fisherman. U. S. Military personnel at the Navy Base in
Rota, Spain provided logistical support for staging the cruises.
20
REFERENCES
Anderson, N., 1974. On the calculation of filter coefficients
entropy spectral analysis. Geophysics 39:69-72.
for
maximum
Bryden, H. L. and T. Kinder. 1986. Gibraltar Experiment: A plan for dynamic
and Kinematic investigations of strait mixing, exchange and turbulence. Woods Hole Oceanographic Institution Technical Report 86-29, 82
pp. (in press).
Current
L.
Smith.
Denbo, D. W., K. Polzin, J. S. Allen, A. Huyer and R.
meter observations over the continental shelf off Oregon and California: February 1981-January 1984. College of Oceanography, Oregon State
University, Corvallis, 1984. Data Report 112, Reference 84-12.
Fofonoff, N. P., R. C. Millard, Jr. 1983. Algorithms for computation of
fundamental properties of sea water. UNESCO technical Papers in Marine
Science, 44, 53 pp.
Lacombe, H. and C. Richez. 1982. The regime of the Strait of Gibraltar, in
Hydrodynamics of Semi-Enclosed Seas, J. C. J. Nihoul (ed.), Elsevier,
pp. 13-74.
Smith, R. L., G. Pittock, J. Fleischbein and R. Still. 1986. Current measurement 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, 0. 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.
21
APPENDIX
GIBRALTAR EXPERIMENT MOORING HISTORY
Eight current meter moorings were deployed from the Spanish vessel
B.H. TOFINO between 16 and 23 October 1985, in the Strait of
Gibraltar. The positions of the eight current meter moorings are as
follows:
Cl
C2
C3
C4
C5
C6
C7
C8
35
35
35
35
35
35
35
35
58.26N
54.79N
53.42N
51.68N
55.70N
56.84N
59.98N
53.16N
05
05
05
05
05
05
05
05
44.62W
44.41W
44.20W
58.64W
38.40W
31.04W
22.75W
50.55W
A description of the moorings follows:
Cl
48" steel sphere - S4 s/n 04410760@75 m - RCM 5646@100m -RCM 1968@120m
- RCM 5647@130m - 37" steel sphere - RCM 5649@170m - DACS 202601 D =
180m.
C2
48" steel sphere - S4 s/n 04410762@75m - RCM 6590@100m - RCM 751@120m
- RCM 6593@130m - RCM 5886@170m - 41" steel sphere - RCM 5648@230m RCM 1241@285m - 6 17" glass spheres - DACS 202801, D = 300m.
C3
48" steel sphere - S4 s/n 04410763@75m - RCM 5643@100m - RCM 5644@130m
37" steel sphere - RCM 5645@170m - DACS 200303, D = 180m.
C4
48" steel sphere - RCM 1541@75m - RCM 6881@170m
17" glass spheres - DACS 102407, D = 360m.
- RCM 4045@230m -
7
C5
48" steel sphere
-
S4 s/n 04410764@75m
spheres - DACS 102307, D = 650m.
-
RCM 1237@230m
-
9 17" glass
C6
48" steel sphere
- RCM 1543@75m - RCM 3615@230m -
- DACS 102007, D = 800m.
9 17" glass spheres
C7
48" steel sphere
- RCM 755@75m - RCM 1236@230m -
- DACS 102507, D = 950m.
10 17" glass spheres
22
C8
48" steel sphere - RCM 6877@75m - RCM 6878@170m - RCM 6876@195m 17" glass spheres - DACS 201403, D = 600m.
9
Harry Bryden was informed by the Spanish navy on 26 or 27 November
1985 that Moroccon fishermen had recovered parts of moorings C2 and
C4. Due to the similarity of some of the instrument serial numbers, we
did were not sure what parts they had until the equipment was
recovered in Al Medeq, Morocco, aboard the B.H. ANTARES, 18-19
February 1986. A list of the equipment recovered follows:
C2
48" steel sphere - S4 s/n 04410762 - RCM 6590 - RCM 751 - RCM 6593
RCM 5886 - 41" steel sphere - RCM 5648
-
C4
48" steel sphere -
RCM 1541
The remainder of mooring C2 was released, and recovered aboard the
ANTARES on 20 February 1986.
C2
RCM 1241 - 6 17" glass spheres - DACS 202801
Sometime during the week of 10 March 1986, T. Kinder et.al., aboard
the USNS LYNCH, released DACS 102407 at mooring C4. The remainder of
the mooring would not come up.
On 18 March 1986, the Spanish navy recovered the 48" steel sphere RCM 6877 from mooring C8, near Ceuta.
The Gibraltar mooring recovery cruise was aboard the USNS LYNCH, 21-25
April 1986. The results are listed below:
Cl
Released, would not come up
C3
Released, all recovered
C4
Rereleased, RCM 6881 - RCM 4045 - 7 17" glass
still on position.
spheres -
DACS 102407,
C5
Released, would not come up. Three days after release, DACS 102307 17" glass spheres - 283m 1/4" wire rope, were recovered near Ceuta.
C6
Released,
release came up 5 or 6 meters.
C7
Released,
wire rope.
recovered DACS 102507 -
10
17" glass spheres
- 428m 1/4"
C8
Released,
release began to come
up.
DACS came up about 80m.
9
23
The reinstallation cruise aboard the B.H. MALASPINA was scheduled for
15-31 May 1986. On 25 May 1986, while waiting for the ship to get
fixed and go to sea, the Spanish navy delivered to the MALASPINA all
of the instruments from mooring Cl, excluding S4 s/n 04410760.
The positions of the four current meter moorings installed are as
follows:
C2B
C3B
C4B
C9
35
35
35
35
54.74N
53.42N
52.07N
55.23N
05
05
05
05
44.55W
44.21W
58.03W
29.98W
A description of the moorings follows:
C2B
48" steel sphere - RCM 5649@75m - RCM 6590@100m - RCM 6593@130m - 6
17" glass spheres - RCM 5886@170m - 41" steel sphere - RCM 5648@230m 6 17" glass spheres - RCM 1241@290m DACS 202801, D =300m.
C3B
48" steel sphere - S4 s/n 04410762@75m - RCM 5643@100m - 6 17" glass
spheres - RCM 5644@130m - 37" steel sphere - RCM 5645@170m - DACS
200303, D = 180m.
C4B
48" steel sphere
-
- RCM 1541@220m - 6 17" glass spheres - RCM 1968@300m
2 17" glass spheres - RCM 6879@340m - 6 17" glass spheres - DACS
102307, D = 360m.
C9
48" steel sphere - RCM 5647@75m - 41 steel sphere - RCM 5646@170m DACS 102507, D =180m.
A letter from Malaga dated 18 June 1986 states that a 17" glass sphere
s/n 27939 was found on the beach near Malaga. The s/n indicates that
the sphere was the top sphere in the cluster of 7 glass spheres above
the release at mooring C4.
On 24 June 1986, while on a hydrographic cruise in the Strait on the
USNS LYNCH, T. Kinder, et.al., recovered the 48" steel sphere and the
S4 s/n 04410762 titanium mooring rod from mooring C3B. He and his
company were asked to recover the remainder of the mooring. The
recovery was made on 26 June 1986.
Returning from his hydrographic cruise, T. Kinder returned the 3 RCM
data tapes from C3B to OSU along with data tapes from RCMs 755 and
1236 from mooring C7, which the Spanish navy had recovered.
1 September 1986 - As of this date equipment accounting is listed
below:
At sea as placed: C2B, C4B, C9
24
In Corvallis: S4 s/n 04410763
At Rota Base:
48" steel sphere, 41" steel sphere, 37" sphere, 6 17" glass
spheres, RCM 751, 5643, 5644, 5645, DACS 200303, 202601
In Rota/Cadiz c/o Spanish Navy:
C1
48" steel sphere
-
S4 s/n 04410760 - 37" steel sphere
-
S4 s/n 04410764
C5
48" steel sphere
C7
48" steel sphere - RCM 755 - RCM 1236
29 September 1986. As of this date equipment accounting is listed
below.
At Rota Base:
3-48" and 1-37" steel spheres
At IHM, Cadiz:
RCMs 755, 1236 from C7,and S4 S/N 04410764 from C5. They do not
have S4 S/N 04410760 from Cl, strange since all of the other
instruments and flotation from Cl have been returned.
Somewhere in Malaga:
17" glass sphere s/n 27939 top of 7 from mooring C4
Presumed to be on position:
C6
48" steel sphere - RCM 1543 - RCM 3615 - 9 17" glass spheres - DACS
102007
C8
RCM 6878 - RCM 6876 -
9
17" glass spheres - DACS 201403
Missing:
C4
RCM 6881 - RCM 4045 -
6
17" glass spheres - DACS 102407
Lost:
S4 s/n 04410762 - RCM 1237
27 October 1986
The Gibraltar Experiment recovery cruise was aboard the USNS LYNCH,
12-17 October 1986. C2B, C4B, C9 were recovered on 13 October 1986.
Observable vibration wear was present in all moorings.
Equipment recovered by the Spanish navy with the exception of S4 s/n
04410760,
was returned to Rota base on 21 October 1986.
Mooring failure dates as determined from recovered RCMs are listed
below:
25
Cl
C2
C3
C4
4 May 1986
23 November 1985
OK
9 November 1985
C5 ?
C6 DACS on position
C7 27 March 1986
C8 26 February 1986
C3B 23 June 1986
20 May 1987, S4 s/n 04410760 is at IHM, Cadiz, Spain. A shipping
container was delivered to IHM during the final recovery period,
October 1986, and can be shipped to OSU via Rota base.
27
Mooring C -
1
1986
1985
OCT
DEC
NOV
JAN
FEB
MAR
MAY
APR
JUN
SEP
AUG
JUL
OCT
PERIOD II
PERIOD I
143 M
s
--y
e
T
P
C
.-,
156 M
s
8
T
P
C
167 M
s
0
T
P
C
V.-
215 M
s veg
TV
P
CV
V
I
r-r,TTTTllll 111111
fill
1 1111 11
DATA RETURN FROM GIBRALTAR C-1.
I
T-i I I -1 I T-T-T-r i
STATISTICS
MOORING GIBRALTAR C-1
22 OCT 85 - 4 MAY 86
MEAN
5646/25
143 m
s
u
v
T
P
C
S
1968/44
156 m
s
u
v
T
P
C
S
5647/27
167 m
s
u
v
T
P
C
S
5649/19
215 m
s
u
v
T
P
PERIOD I
SD
HALF-HOURLY UNFILTERED DATA
35°58.26'N,
5°44.62'W
Bottom depth: 222
MIN
MAX
LENGTH
65.84
-12.57
-9.25
13.39
147.29
44.37
37.93
40.70
73.17
19.86
0.58
0.75
0.41
0.61
2.10
-200.50
-122.30
12.89
144.40
42.03
35.83
204.40
198.00
65.00
17.13
154.90
47.03
38.46
9315
9315
9315
9315
9315
9315
9315
62.52
-18.08
-5.05
13.36
166.03
44.61
38.01
39.08
64.96
29.40
0.45
0.97
0.22
0.48
0.80
-176.10
-141.30
12.58
157.70
42.93
36.04
191.30
176.60
161.60
16.12
173.40
46.04
38.45
9315
9315
9315
9315
9315
9315
9315
60.34
-17.70
-10.18
13.22
172.32
44.49
38.03
38.40
65.66
19.69
0.41
0.70
0.42
0.44
2.70
-193.40
-111.50
12.78
168.80
42.43
36.15
196.40
168.50
125.90
16.05
178.70
46.18
38.52
9298
9298
9298
9298
9298
9298
9298
This record was cut at 0738 4 MAY 86 when
all channels began to show zeros.
36.24
-11.20
2.36
13.14
218.09
22.56
37.65
16.54
0.25
0.18
0.13
0.25
0.80
-96.70
-122.80
12.92
216.70
43.00
36.59
122.90
103.00
76.10
15.02
221.70
45.56
38.44
9315
9315
9315
9315
9315
8920
8920
Due to a malfunction of the conductivity sensor
lines 224 - 618 (0640 27 Oct 85 - 1140 4 Nov 85)
have been set to zero, & lines 6177 - 6183 (0610
28 Feb 86 - 1010 28 Feb 86) have been bridged.
C
44.41
S
38.23
COMMENTS
(speed, u, and v are given in cm/sec; Temperature in °C; Pressure in
and Corrected Salinity in ppt. The sampling rate is 30 min.)
decibars; Conductivity in mmho/cm;
STATISTICS
MOORING GIBRALTAR C-1
24 OCT 85 - 3 MAY 86
MEAN
5646/25
143 m
u
v
T
P
C
S
1968/44
156 m
u
v
T
P
C
S
5647/27
167 m
u
v
T
P
C
S
5649/19
215 m
u
v
T
P
C
S
PERIOD I
SD
LLP FILTERED DATA
35°58.26'N,
5°44.62W
Bottom depth
222 m
MIN
MAX
LENGTH
w
0
COMMENTS
-12.52
-9.28
13.39
147.30
44.37
37.93
15.35
3.54
0.22
0.38
0.32
0.19
-61.66
-18.40
13.01
46.69
43.58
37.28
25.22
4.32
14.32
149.04
45.12
38.35
766
766
766
766
766
766
-18.06
-5.09
13.36
166.05
44.61
38.01
12.93
5.55
0.16
0.49
0.11
0.14
-53.05
-23.29
13.11
164.57
44.32
37.56
14.53
14.50
14.03
167.79
44.97
38.32
766
766
766
766
766
766
-17.69
-10.20
13.22
172.33
44.49
38.03
12.87
4.01
0.15
0.31
0.37
0.13
-57.57
-23.67
12.99
171.64
43.86
37.50
15.77
1.54
13.93
173.54
45.42
38.32
765
765
765
765
765
765
See note on half-hourly statistics page.
-11.21
2.35
13.15
218.09
44.39
38.24
6.39
3.37
0.08
0.07
0.24
0.09
-27.59
-8.20
12.98
217.73
43.83
37.81
6.78
12.75
13.64
218.38
44.92
38.41
766
766
766
766
708
708
The
See note on bridges in half-hourly file.
first 58 lines in the conductivity and salinity
records have been eliminated due to a malfunction
of the conductivity sensor.
(u and v are given in cm/sec; Temperature in °C; Pressure in db; Conductivity in mmho/cm; and Corrrected Salinity
in ppt.
The sampling rate for LLP data is 360 min.)
31
143 m at Gibraltar C-1. 22 Oct 85 - 4 May 86. Tape 5646/25.
4, Mean
0.06
0.05
0.04
0.03
0.02
0.01
0.00
0
75
50
25
100
125
150
175
200
225
250
Speed, cm per sec
0.20
0.15
0.10
0.05
0.00
0
30
60
120 150 180 210 240 270 300 330 360
Direction, Degrees True
90
4, Mean
0.60
0.50
0.40
0.30
0.20
0.10
0.00
142
144
146
148
150
152
Pressure, Decibars
154
156
158
32
143 m at Gibraltar C-1. 22 Oct 85 - 4 May 86. Tape 5646/25.
Mean
'It
0.00
12
13
14
15
16
17
18
Temperature, Degrees C.
Mean
0.30
0.25
0.20
0.15
0.10
0.05
0.00
42
43
44
45
46
47
48
Conductivity, Mmho/cm
4, Mean
0.60
0.50
0.40
0.30
0.20
0.10
0.00
35.0
35.4 35.8 36.2 36.6 37.0 37.4 37.8 38.2 38.6 39.0
Salinity, PPT
33
156 M AT GIBRALTAR C-1.
22 OCT 85 - 4 MAY 86. TAPE 1968/44.
4, Mean
0.08
0.06
0.04
0.02
0.00
0
25
50
75
100
125
150
175
200
Speed, cm per sec
0.20 T
0.15
0.10
0.05
0.00
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, Degrees True
Mean
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
155
159
163
167
Pressure, Decibars
171
175
34
156 M AT GIBRALTAR C-1.
22 OCT 85 - 4 MAY 86. TAPE 1968/44.
I Mean
0.50 T
0.40 t
0.30 t
0.20 t
0.10 t
0.00
ITTi--ri
12.0 12.4 12.8 13.2 13.6 14.0 14.4 14.8 15.2 15.6 16.0 16.4 16.8 17.2
Temperature, Degrees C.
Mean
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
42.0 42.4 42.8 43.2 43.6 44.0 44.4 44.8 45.2 45.6 46.0 46.4 46.8 47.2
Conductivity, Mmho/cm
Mean
0.30
0.25
0.20
0.15
0.10
0.05
0.00
36.0
36.5
37.0
37.5
Salinity, PPT
38.0
38.5
39.0
35
167 M AT GIBRALTAR C-1. 22 OCT 85 - 4 MAY 86 TAPE 5647/27.
4. Mean
0.08
0.06
0.04
0.02
0.00
HII HII !1 11 !!!!!all!! !!!111 11 1144411d-H
50
25
0
75
100
125
150
175
200
Speed, cm per sec
0.20
0.15
0.10
0.05
0.00
0
30
60
120 150 180 210 240 270 300 330 360
90
Direction, Degrees True
4, Mean
0.60
0.50
0.40
0.30
0.20
0.10
0.00
166
168
170
172
174
176
Pressure, Decibars
178
180
182
36
22 OCT 85 - 4 MAY 86 TAPE 5647/27.
167 M AT GIBRALTAR C-1.
4, Mean
0.60
0.50
0.40
0.30
0.20
0.10
0.00
r-;
12.0 12.4 12.8 13.2 13.6 14.0 14.4 14.8 15.2 15.6 16.0 16.4 16.8 17.2
Temperature, Degrees C.
4 Mean
0.25-r
0.20 t
0.15 t
0.101
0.05 t
I
I
i
i
!
t--1
0.00
42.0 42.4 42.8 43.2 43.6 44.0 44.4 44.8 45.2 45.6 46.0 46.4 46.8 47.2
1
1
-
1
-
-
Conductivity, Mmho/cm
4. Mean
0.40
0.30
0.20
0.10
0.00
36.0
36.5
37.0
37.5
Salinity, PPT
38.0
38.5
39.0
37
215 M AT GIBRALTAR C-1. 22 OCT 85 - 4 MAY 86 TAPE 5649/19.
4, Mean
0.05
0.04
0.03
0.02
0.01
0.00
0
10
20
30
40
50
60
70
80
90 100 110 120 130
Speed, cm per sec
0.20 T
FL
0.15
0.10
0.05
0.00
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, Degrees True
4. Mean
1.00
0.90
I
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
I
212
I
214
I I:q.
216
218
220
222
Pressure, Decibars
224
226
38
215 M AT GIBRALTAR C-1. 22 OCT 85 -- 4 MAY 86. TAPE 5649/19.
4, Mean
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
12.0
12.4
12.8
13.2
13.6
14.0
14.4
14.8
15.6
15.2
16.0
Temperature, Degrees C.
4, Mean
0.40
0.30
0.20
0.10
0 00
42.0
42.4 42.8 43.2
43.6
44.0
44.4 44.8 45.2
45.6 46.0
Conductivity, Mmho/cm
4, Mean
0.60
0.50
0.40
0.30
0.20
0.10
0.00
36.0
36.5
37.0
37.5
Salinity, PPT
38.0
38.5
39.0
39
143 M AT GIBRALTAR C-1.
22 OCT 85 - 9 MAY 86. TAPE 5646/25.
NT
T 600 Km
600 Km
-600
-1200
-1800
V component
(North)
ll component
(East)
40
156 M AT GIBRALTAR C-1. 22 OCT 85 - 4 MAY 86. TAPE 1968/44.
N?
600 Km
-3600
-3000
-2400
-1800
-1200
-600
600 Km
-600
-1200
V component
(North)
41
167 M AT GIBRALTAR C-1. 22 OCT 85 - 4 MAY 86.
TAPE 5647/27.
Nt
T 600 Km
1 -1800
V component
(North)
42
215 M AT GIBRALTAR C-1.
22 OCT 85 - 4 MAY 86. TAPE 5649/19.
NT
V component
(North)
U component
(East)
UNFILTERED CURRENT
143 M AT GIBRALTAR C-1.
UNFILTERED PRESSURE
143 M AT GIBRALTAR C-1.
100000
I
10000
0.1
t
Ai
1000
0.01
100
v
V
t
cc
I
0.001#
I
v
Y
1
0. 0001
°5 PERCENT
95 PERCENT
C. D0001 +
0. 01
0. 1 } H
0.01
fITi 4I I I
0. 1
1
1
I
1
4 I
IIII
10
FREQUENCY. CYCLES PER DRY
I
....i
0. 1
--f
f
1
;;+f
10
11+ 11111
100
FREQUENCY. CYCLES PER DRY
I
f 11111
100
UNFILTERED SALINITY
143 M AT GIBRALTAR C-1.
UNFILTERED TEMPERATURE
143 M AT GIBRALTAR C-1.
10
0. 1
I
I
Al
0.01
I
V
I
vw
VI
p
0. 001
0. 0001
0. 0001 1
95 PERCENT
95 PERCENT
0. 00001
L
0. 01
0. 00001
0. 1
1
10
FREQUENCY. CYCLES PER DAT
100
+
0. 01
!
1
it III
0. 1
H H H i+ afi+II
1
10
FREQUENCY. CYCLES PER DAY
+i
i
Hi,,,
100
156 M AT GIBRALTAR C-1.
UNFILTERED TEMPERATURE
UNFILTERED SALINITY
156 M AT GIBRALTAR C-1.
11
0. 1 t
0. 1
I
0.01j
0.01 1
II
I
i
I
I
VII
I
0.001
0.001 t
I
v
0. 0001
0. 0001
i
0. 00001 +
0.01
95 PERCENT
95 PERCENT
+--r
T- -+-+i 1tr
0. 1
1
r- r-;
1 11111
10
FREQUENCY. CYCLES PER DAY
+-I + i +;;;
100
0. 00001
0.01
+i i
+0+++1Iiii
1
1
1
111
0. 1
I
i
i
1
i i i
10
FREQUENCY. CYCLES PER DAY
Ir 11 1 11 ri
100
UNFILTERED CURRENT
156 M RT GIBRRLTRR C-1.
UNFILTERED PRESSURE
156 M AT GIBRRLTRR C-1.
100000
10000
1
1000
x
0. 1
100
I
1
I
v
I
10
11
0.01 t
V
I
I
k%v
0.001
95 PERCENT
95 PERCENT
I
0. 1 }
0. 01
F+l++;-+-+-++++ri-- F+++++M-H i-n, .iii
0. 1
1
10
FREQUENCY. CYCLES PER DRY
100
0. 0001
I
0.01
r-r-r r r.r-+--+ r r. ,.,r-i
0. 1
1
i
F+
1 !+
10
FREQUENCY,
CYCLES PER DRY
FRE
I
F +i I
100
UNFILTERED CURRENT
167 M AT GIBRALTAR C-1.
100000
UNFILTERED PRESSURE
167 M AT GIBRALTAR C-1.
10000
1T
1000
I
I
100 t
ft
I
I
I
I
I
10 t
0. 001
95 PERCENT
95 PERCENT
Him:iH;;Tii
0. 0 001
0. 01
0. 1 r
0.01
-riil+; ;ii;Ti
0. 1
1
I
f+ i i t I
10
FREQUENCY. CYCLES PER OAT
i
i
i
i
0. 1
1
i
i
i
111111
10
i Hi
100
FREQUENCY. CYCLES PER DRY
i+ 1 HM
1
100
UNFILTERED TEMPERATURE
167 M AT GIBRRLTRR C-1.
UNFILTERED SRLINITY
167 M AT GIBRRLTRR C-1.
I
T
0.01 j
0.01
S
.A
T
AN
.A
11
Y
0. 001
0. 0001
0. 0001 t
1
0. 00001
i
0.01
i I. rH.r-F+T 1
0. 1
0. 00001
11111
1
95 PERCENT
I
95 PERCENT
10
FREQUENCY. CYCLES PER DRY
100
0.01
0. 1
1
10
FREQUENCY. CYCLES PER DRY
100
UNFILTERED CURRENT
215 M AT GIBRALTAR C-1.
UNFILTERED PRESSURE
10000
215 M AT GIBRALTAR C-1.
1
1000
t
0.01 t
100
I
T
I
I
11
I
0. 001 t
%44
I
0. 0001
95 PERCENT
0. 1 +
0. 01
1 H i1 l1 1l
1
1
0. 1
f
1
111111
1
I
I
11
1
1
11
10
FREQUENCY. CYCLES PER DAY
1
i
! 11!i11
100
95 PERCENT
0.00001
0. 01
F
F
1
1
1
1111
0. 1
1
1
1
1 Hill
1
1
1
i
1
1
1111
10
FREQUENCY, CYCLES PER DRY
rI 11 11 1
100
UNFILTERED TEMPERATURE
215 M AT GIBRALTAR C-1.
UNFILTERED SALINITY
215 M AT GIBRALTAR C-1.
1I
4.
A
Al
I
I@
I
I
11
0. 001
I
V
I
0.0001
I
I
i
III
0.0001
t
95 PERCENT
95 PERCENT
T
0. 00001
0. 01
0. 00001
0. 1
1
10
FREQUENCY. CYCLES PER DRY
100
0.01
0. 1
1
10
FREQUENCY. CYCLES PER DAY
100
1986
1985
50
25
11-1
OCT
NOV
DEC
JAN
FEB
51
APR
MAR
MAY
N f-
0
E
0-25
-50
50
U Component
25
-I k
0
-25
N
-50
50 r
V Component
25
0
E
-25
-50
14.5
14.0
U
13.5
13.0
146F-
12.5
Pressure
147
148
I
149
1501-
45.5
45.0 E
44.5 1-
44.0
39.0
43.5
X38.0
Corrected Salinity
38.5
37.5 37.0 1
I
1
1
I
I
I
143 m at Gibraltar C-1.
I
E
52
1986
1985
OCT
50
25
NOV
DEC
APR
MAR
FEB
JAN
MAY
Velocity
N
0
-25
50
-50
U Component
25
aD
0
E
-25 "
-50
50
V Component
25
..
0
E
0-25
14.5
-50
Temperature
14.0
U
13.5 c
0
13.0
12.5
164
W
Pressure
165
L
166
167
45.5
168
45.0 E
Uncorrected Conductivity
44.5
44.0
43.5
39.0
38.5
Corrected Salinity
x38.0
CL
37.5
37.0
l
(
I
l
156 m at Gibraltar C-1.
E
1985`25
N
NOV
OCT
50
1986
JAN
DEC
FEB
MAR
53
APR
MAY
Velocity
[- N <--
0
E
0-25
-50
50
U Component
25
m
CO
0 IN,
A
E
Ivy
-25 "
N
-50
1
V Component
14.5
Temperature
14.0
13.5
13.0
171I-
0
12.5
Pressure
172
0
NA-
173
174
175F-
45.5
45.0 E
44.5 144.0
39.0
43.5
Corrected Salinity
38.5
Q 38.0
37.5
37.0
1
I
I
L
1 67 m at Gibraltar C-1.
I
E
54
50
1986
1985
OCT
DEC
NOV
JAN
MAY
APR
MAR
FEB
i
25
Velocity
0
E
" -25
-50
50
U Component
50
V Component
25
\E
42,.4A
0
-25
-50
Temperature
216
0,
L
0
0
Pressure
217
218
a)
0 219
45.5
220
Uncorrected Conductivity
45.0
E
44.5
s
H 44.0
43.5
39.0
Corrected Salinity
38.5
06-38.0
37.5
37.0
I
I
I
I
I
I
215 m at Gibraltar C-1.
I
0
0
E
E
55
1985
OCT
50
NOV
I
1986
DEC
JAN
FEB
MAR
APR
MAY
I
I
143 M
25
0
E
"-25
-50
50
156 M
25
-25
50
E
-I -50
167 M
25
0
E
"-25
-50F-
50
L
215 M
25 u
()
U)
0 ,11
E
-25 "
I
1
Velocity at Gibraltar Mooring C-1.
-50
56
1985
NOV
OCT
50
1986
DEC
FEB
JAN
MAR
APR
MAY
143 M
25
a)
vv
0
E
"-25
v WV
-vv
-50
50
156 M
25 0
0
A
ICI
1
,'ry
E
V
50
0
-25 0
-50
167 M
25
w
a 0
U
-25
F
1
IuVv
ail'
-50
50
215 M
25
0
-25
- 50
U Component at Gibraltar Mooring G-1.
E
57
1985
NOV
OCT
50
U
25
1986
i
DEC
I
JAN
I
MAR
FEB
I
I
APR
I
MAY
I
143 M
\0
en
E
"-25
-50
50
156 M
50
25
167 M
0
E
"-25
-50
50
215 M
25
0
-25
-50
V Component at Gibraltar Mooring C-1.
0,
E
v
1985
OCT
14.5
NOV
1986
JAN
FEB
MAR
APR
MAY
I
143 M
14.0
U
v, 13.5
13.0
12.5
14.5
14.0
U
13.5 m
r
13.0
00
F
14.5
12.5
167 M
215 M
n
H 13.0
12 . 5
Temperature at Gibraltar Mooring C-1
5-9
1985
146
OCT
1986
NOV
DEC
JAN
MAR
FEB
APR
MAY
147
14}8
a)
149
150
164
156 M
165
166
U
a)
167
I
171
168
167 M
216
215 M
217
218
219
I
I
I
I
I
I
Pressure at Gibraltar Mooring C-1.
I
220
60
1985
39.0
38.5
CL
OCT
NOV
1986
DEC
JAN
FEB
MAR
APR
MAY
143M
38.0
37.5
37.0
39.0
156 M
38.5
38.0
37.5
39.0
38.5
-137.0
167 M
CL 38.0
37.5
37.0
215 M
139.0
38.5
38.0
37.5
37.0
Corrected Salinity at Gibraltar C-1.
w
61
Mooring C -
2
1986
1985
OCT
NOV
DEC
1
1
1
1
1
MAR
FEB
JAN
11 1
PERIOD I
1
1
1
111
1
1
11 1
APR
11
11o it
MAY
JUN
JUL
S-7
T
PERIOD 11
123 M
143 M
P
C
S
153 M
P
T
P
C V -V
19 M
Vt.
C
---V
9_:
P
C
SEP
OCT
1.1
s
T
.AUG
306M
V
DATA RETURN FROM GIBRALTAR C-2.
STATISTICS
MOORING GIBRALTAR C-2
PERIOD I
Bottom depth: 321 m
22 OCT 85 - 23 NOV 85
MEAN
6590/16
123 m
s
u
v
T
P
C
S
751/61
143 m
s
u
v
T
P
C
S
6593/14
153 m
s
u
v
T
P
C
S
HALF-HOURLY UNFILTERED DATA
35°54.79'N, 5°44.41'W
SD
MIN
MAX
LENGTH
90.15
-3.35
-9.27
14.29
127.21
44.60
36.94
50.45
98.89
28.22
0.92
3.32
0.59
0.92
7.90
-242.40
-121.00
12.85
124.00
42.83
35.57
246.90
177.00
78.40
16.77
152.50
47.19
38.46
1533
1533
1533
1533
1533
1533
1533
85.10
-14.06
-8.19
13.94
148.61
44.34
37.18
41.87
89.49
26.86
0.82
3.57
0.55
0.94
5.50
-185.80
-101.70
12.85
144.30
42.47
35.42
191.50
147.10
103.30
16.38
189.20
'46.36
38.48
1532
1532
1532
1532
1532
1532
1532
92.76
-22.69
-14.76
13.83
157.94
44.51
37.33
49.20
96.29
31.97
0.77
3.56
0.54
0.93
8.50
-247.50
-112.00
12.88
154.60
42.51
35.54
252.10
172.80
66.30
16.14
197.90
46.34
38.41
1532
1532
1532
1532
1532
1532
1532
COMMENTS
5886/19
191 m
T
P
C
S
5648/27
254 m
s
u
v
T
P
C
S
1241/37
306 m
s
u
v
T
P
C
S
MEAN
SD
13.34
196.23
44.69
37.86
0.59
3.41
0.39
0.76
12.83
192.30
43.01
35.75
15.86
216.10
46.06
38.41
1532
1532
1532
1532
81.10
-46.35
-27.98
13.03
260.55
44.99
38.26
38.53
60.85
37.77
0.24
2.10
0.12
0.23
8.50
-185.60
-129.50
12.86
256.00
43.71
36.33
192.30
128.60
63.80
14.87
273.80
45.73
38.43
1532
1532
1532
1532
1532
1532
1532
62.57
-26.63
-28.67
12.96
312.36
27.89
4.50
-134.90
-108.10
12.88
308.90
44.49
37.58
150.10
92.50
79.00
13.92
314.80
45.05
38.41
1533
1533
1533
1533
1533
1533
1533
44.68
38.35
41.65
37.77
0.09
0.57
0.04
0.08
MIN
MAX
LENGTH
No speed record. The rotor evidentally
fell off during installation
Mooring found on beach near Al Mediq Morocco in December 1985, cable corroded just above deepest
instrument. According to our records the deepest meter stopped functioning at the same time. The
lower portion of the mooring was recovered 20 Feb 86.
(speed, u, and v are given in cm/sec; Temperature in °C; Pressure in decibars; Conductivity in mmho/cm;
and Corrected Salinity in ppt. The sampling rate is 30 min.)
STATISTICS
MOORING GIBRALTAR C-2
6-HOURLY LLP FILTERED DATA
PERIOD I
24 OCT 85 - 22 NOV 85
MEAN
6590/16
u
123 m
v
T
P
C
S
751/61
u
143 m
v
T
P
C
S
6593/14
u
153 m
v
T
P
C
S
-3.76
-9.43
14.30
127.37
44.63
36.96
-14.10
-8.36
13.95
148.77
44.35
37.19
-22.54
-14.89
13.84
158.09
44.52
37.34
SD
23.35
6.17
0.41
1.79
35°54.79'N, 5°44.41'W
Bottom depth: 321 m
MIN
-54.97
-19.33
13.71
0.45
125.45
44.02
36.28
17.57
2.98
0.35
1.81
0.29
0.40
-53.47
-15.11
13.51
146.50
43.85
36.54
18.67
3.96
0.31
1.65
0.28
0.36
-63.29
-22.96
13.42
0.37
155.82
44.06
36.64
MAX
LENGTH
40.45
3.75
15.28
131.84
45.34
37.74
117
117
117
117
117
117
22.76
117
117
117
117
117
117
-1.53
.14.85
153.06
44.91
37.87
20.42
-8.47
14.68
162.01
45.04
37.96
117
117
117
117
117
117
COMMENTS
MEAN
5886/19
191 m
T
P
C
S
5648/27
254 m
u
v
T
P
C
S
1241/37
306 m
u
v
T
P
C
S
SD
MIN
MAX
LENGTH
13.35
196.35
44.69
37.85
0.14
1.87
0.11
0.18
13.13
194.04
44.47
37.45
13.71
200.48
44.94
38.15
117
117
117
117
-45.79
-27.28
13.04
260.69
44.99
38.26
8.31
5.64
0.06
0.93
0.06
0.06
-62.74
-38.05
12.95
259.43
44.89
38.10
-31.66
-15.54
13.22
262.93
45.12
38.35
117
117
117
117
117
117
-26.21
-27.98
12.96
312.40
44.68
38.35
7.11
6.13
0.03
0.16
0.02
0.02
-41.06
-41.10
12.92
311.98
44.64
38.30
-14.42
-17.30
13.07
312.63
44.72
38.37
117
117
117
117
117
117
COMMENTS
No speed record.
The rotor apparently fell
off during installation.
Mooring found on beach near Al Mediq Morocco in December 1985, cable corroded just above deepest
instrument.
According to our records the deepest meter stopped functioning at the same time. The
lower portion of the mooring was recovered 20 Feb 86.
(speed, u, and v are given in cm/sec; Temperature in °C; Pressure in decibars; Condin mmho/cm;
and Corrected Salinity in ppt. The sampling rate is 360 min.)
67
123 M AT GIBRALTAR C-2. 22 OCT 85 - 23 NOV 86. TAPE 6590/16.
Mean
(ZJLr
Uw
r
Z
0.00
0
25
50
75
100
125
150
175
200
225
250
Speed, cm per sec
0.20
0.15
0.10
0.05
0.00
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, Degrees True
I Mean
0.50
0.40 t
0.30
0.20
0.10
0.00
120
124
128
132
136
140
144
Pressure, Decibars
148
152
156
68
123 M AT GIBRALTAR C-2. 22 OCT 85 - 23 NOV 86. TAPE 65.90/16.
,
Mean
0.20
0.15
0.10
0.05
."-,
0.00
12.0 12.4 12.8 13.2 13.6 14.0 14.4 14.8 15.2 15.6 16.0 16.4 16.8 17.2
Temperature, Degrees C.
Mean
0.40
0.30
0.20
0.10
0.00
42
43
44
45
47
46
48
Conductivity, Mmho/cm
Mean
0.30'r
0.25
0.20
0.15
0.10
0.05 t
0.00
i
ii
iiii ii
i
i
I
I
I
'J
35.0 35.4 35.8 36.2 36.6 37.0 37.4 37.8 38.2 38.6 39.0
Salinity, PPT
69
143 M AT GIBRALTAR C-2. 22 OCT 85 - 23 NOV 85. TAPE 751/61.
I Mean
0.06 T
c
FL
0.05
JI
a)
o
a)
0.04
L
LL-
r0
a,
6
0=
0.00
25
50
75
100
125
150
175
200
Speed, cm per sec
0.20 T
0.15
T
0.10
0.05
0.00
30
60
90
120 150 180 210 240 270 300 330 360
Direction, Degrees True
Mean
0.60 T
0.50
0.40
0.30
0.20
0.10
0.00
140
156
172
Pressure, Decibars
188
70
143 M AT GIBRALTAR C-2. 22 OCT 85 - 23 NOV 85. TAPE 751/61.
Mean
0.25
0.20
0.15
0.10
0.05
0.00
12.0 12.4 12.8 13.2 13.6 14.0 14.4 14.8 15.2 15.6 16.0 16.4 16.8 17.2
Temperature, Degrees C.
Mean
0.40 T
0.30
0.20
0.10
0.00
'ri
i
42.0 42.4 42.8 43.2 43.6 44.0 44.4 44.8 45.2 45.6 46.0 46.4 46.8 47.2
Conductivity, Mmho/cm
I Mean
0.30
0.25
0.20
0.15
0.10
0.05
0.00
35.0. 35.4 35.8
36.2 36.6
37.0 37.4 37.8
Salinity, PPT
38.2 38.6 39.0
71
153 M AT GIBRALTAR C-2. 22 OCT 85 - 23 NOV 85.
TAPE 6593/14.
4, Mean
0.05
0.04
0.03
0.02
0.01
0.00
0
25
50
100 125 150 175 200 225 250 275 300
75
Speed, cm per sec
0.25 T
0.20 t
0.15 t
0.10 t
0.05 t
0.00
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, Degrees True
4, Mean
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
150
166
182
Pressure, Decibars
198
72
153 M AT GIBRALTAR C-2. 22 OCT 85 -- 23 NOV 85. TAPE 6593/14.
I Mean
0.25
0.20
0.15
0.10
0.05
0.00
12.0 12.4 12.8 13.2 13.6 14.0 14.4 14.8 15.2 15.6 16.0 16.4 16.8 17.2
Temperature, Degrees C.
I Mean
0.50
0.40
0.30
0.20
0.10
0.00
42.0 42.4 42.8 43.2 43.6 44.0 44.4 44.8 45.2 45.6 46.0 46.4 46.8 47.2
Conductivity, Mmho/cm
Mean
0.40
0.30
0.20
0.10
n 00
35.0 35.4 35.8 36.2 36.6 37.0 37.4 37.8 38.2 38.6 39.0
Salinity, PPT
73
22 OCT 85 - 23 NOV 85. TAPE 5886/19.
191 M AT GIBRALTAR C-2.
0.25 T
-fl
0.20
Ca-
0.00
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, Degrees True
I Mean
0.70
0.60
0.50
0.40
0.30
0.20
0.10 t
0.00+
190
I
198
206
Pressure, Decibars
214
222
74
191 M AT GIBRALTAR C-2. 22 OCT 85 - 23 NOV 85. TAPE 5886/19.
Mean
0.50
ar
0.40
0-
L..
0.30
0
0.20
0.10
0.00
12.0
12.4
12.8
13.2
13.6
14.0
14.4
14.8
15.2
15.6
16.0
Temperature, Degrees C.
Mean
0.60
0.50
0.40
0.30
0.20
0.10
0.00
43.0
43.4
43.8 44.2 44.6 45.0
45.4
45.8 46.2 46.6
47.0
Conductivity, Mmho/cm
Mean
0.60
0.50
0.40
0.30
0.20
0.10
0.00
35,0
35.4 35.8
36.2
36.6
37.0 37.4 37.8
Salinity, PPT
38.2
38.6 39.0
75
254 M AT GIBRALTAR C-2. 22 OCT 85 - 23 NOV 85. TAPE 5648/27.
I Mean
FL
0.00
25
0
50
75
100
125
150
175
200
Speed, cm per sec
0.25
0.20
0.15
0.10
0.05
4-44 6
0.00
0
30
1
1
14
60
90
120 150 180 210 240 270 300 330 360
Direction, Degrees True
Mean
0.50
0.40
0.30
0.20
0.10
0.00
255
257
259
261
263
265
267
269
Pressure, Decibars
271
273
275
76
254 M AT GIBRALTAR C-2. 22 OCT 85 - 23 NOV 85.
.
TAPE 5646/27.
Mean
0.00
12.0
12.5
13.0
13.5
14.0
14.5
15.0
Temperature, Degrees C.
Mean
0.40
0.30
0.20
0.10
0.00
43.0
43.5
44.0
lie
' 1- -T--'
i
44.5
45.0
45.5
46.0
Conductivity, Mmho/cm
Mean
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
I`-
I
36.0
36.5
37.0
37.5
Salinity, PPT
38.0
38.5
39.0
77
306 M AT GIBRALTAR C-2. 22 OCT 85 - 23 NOV 85. TAPE 1241/37.'
Mean
0.05-r
0
10 20 30 40 50 60 70 80 90 100110120130140150160
Speed, cm per sec
0.20 T
0.15
0.10
IL
0.05
0.00
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, Degrees True
4. Mean
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
304
308
312
Pressure, Decibars
316
320
78
306 M AT GIBRALTAR C-2. 22 OCT 85 - 23 NOV 85. TAPE 1241/37.
I Mean
0.50
0.40
0.30
0.20
0.10
0.00
12.8 12.9 13.0 13.1 13.2 13.3 13.4 13.5 13.6 13.7 13.8 13.9 14.0
Temperature, Degrees C.
,,Mean
0.60 T
0.50 t
0.40
0.30
0.20
0.10
0.00
44.4
44.5
44.6
44.7
44.8
44.9
45.0
45.1
Conductivity, Mmho/cm
I Mean
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
37.5 37.6
37.7 37.8 37.9 38.0
38.1
Salinity, PPT
38.2 38.3 38.4
38.5
79
123 M AT GIBRALTAR C-2. 22 OCT 85 - 23 NOV 85. TAPE 6590/16.
V component
(North)
U component
(East)
80
143 M AT GIBRALTAR C-2. 22 OCT 85 - 23 NOV 85. TAPE 751/61.
Nt
T 125 Km
125 Km
-250
V component
(North)
U component
(East)
81
153 M AT GIBRALTAR C-2. 22 OCT 85 - 23 NOV 85. TAPE 6593/14.
NT
T 300 Km
H
-900
-600
300 Km
-300
-300
-600
V component
(North)
U component
(East)
82
254 M AT GIBRALTAR C-2. 22 OCT 85 - 23 NOV 85. TAPE 5648/27.
Nt
-1500
-1200
-900
-600
300 Km
-300
300 Km
-300
-600
-900
V component
(North)
83
306 M AT GIBRALTAR C-2. 22 OCT 85 - 23 NOV 85.
TAPE 1241/37.
NT
300 Km
300 Km
--900
-300
-600
-900
V component
(North)
U component
(East)
123 M AT GIBRALTAR C-2.
UNFILTERED PRESSURE.
123 M AT GIBRALTAR C-2.
UNFILTERED CURRENT.
10
10000
0. 1
1000
0.01
100
0.001
10
0.0001
I
95 PERCENT
0.00001
0. 1
0.01
0. 1
1
t0
FREQUENCY. CYCLES PER OAT
1
95 PERCENT
100
I
0.000001
0.01
0. 1
1
10
FREQUENCY. CYCLES PER DRY
100
UNFILTERED TEMPERATURE.
123 M AT GIBRALTAR C-2.
UNFILTERED SALINITY.
123 M AT GIBRALTAR C-2.
10
1t
0. 1
0.01
Wlh
0.01
0. 001 1
0.001
95 PERCENT
0. 0001 +I 11/11/11
0. 01
0. 1
1
11/11/11
1
1
1
1111#1
10
FREQUENCY. CYCLES PER OAT
+- I
111111
100
95 PERCENT
0.0001
0.01
1
1
1
1 11111
0. 1
1
1
1
1 11111
1
1
1
I 1 11111
10
FREQUENCY. CYCLES PER DAY
I
I
haidAm
I-11
rrn
100
UNFILTERED CURRENT.
143 M AT GIBRALTAR C-2.
UNFILTERED PRESSURE.
10000
143M AT GIBRALTAR C-2.
10001
A
100
0. 1
0.01
11
I
0. 001
0. 1
0.01
95 PERCENT
95 PERCENT
0. 1
1
10
FREQUENCY. CYCLES PER DRY
100
0.01
0. 1
1
10
FREQUENCY. CYCLES PER OAT
100
UNFILTERED SALINITY.
143 M AT GIBRALTAR C-2.
143 M AT GIBRALTAR C-2.
UNFILTERED TEMPERATURE.
A
1f
2
0.01
0.01 1
t
I
t
0.001
1
-1
0. 001
95 PERCENT
0.0001
0.01
;;l -1
0. 1
!Iww
1
1
10
FREQUENCY. CYCLES PER DAT
100
95 PERCENT
0.0001 I
0.01
i
t{i i iii
0. 1
f
1
i 1!11!1
1
F
11 will
10
FREQUENCY, CYCLES PER OAT
1
,.1
100
153 M AT GIBRALTAR C-2.
UNFILTERED CURRENT.
UNFILTERED PRESSURE.
10000 1
153M AT GIBRALTAR C-2.
2
1000
t
I
n
1I
100 t
T
0. 1 f
10
II
0.01
l
95 PERCENT
I
0. 1
0.01
0. 1
1
10
FREQUENCY. CYCLES PER DAY
100
95 PERCENT
T
0.001
0.01
I
I
1
I 11111
0. 1
I1 ++ 1 1 1 1 1
1
1
11/11/11
10
FREQUENCY. CYCLES PER OAT
1
1
1
1 1 1111
100
UNFILTERED SALINITY.
153 M AT GIBRALTAR C-2.
153 M AT GIBRALTAR C-2.
UNFILTERED TEMPERATURE.
1I
0. 1
I
t
0.01
0.001
0.DOIi
95 PERCENT
95 PERCENT
r
0.0001
0.01
1
11+111I
1 1 11;T;1
0. 1
FREQUENCY.
1
I
1++i11t + 1! wI;
10
CYCLES PER DAY
100
H+T+flat 11/11/11 11 1 1+111
0.0001
0.01
10
0. 1
1
FREQUENCY. CYCLES PER DAY
1
&
i l 11111
100
191 M AT GIBRALTAR C-2.
UNFILTERED PRESSURE.
1t
0. 1 f
0.01
0. 001
1
I
95 PERCENT
0. 0001
0.01
0. 1
1
10
FREQUENCY. CYCLES PER DAY
100
191 M AT GIBRALTAR C-2.
UNFILTERED TEMPERATURE.
191 M AT GIBRALTAR C-2.
UNFILTERED SALINITY.
I
0.01 f
0.01
x
x
0.001
0.001 f
I
0.0001 f
0.0001
95 PERCENT
0. 00001
0.01
+ rT++++;+
0. 1
+a
1
++H
10
FREQUENCY. CYCLES PER DRY
+
I
;1 r:+,
100
0.00001
0.01
i
i t 1AA1i
0. 1
:A
0
A
a
a
m
1
1
f
a
95 PERCENT
1 111111
10
FREQUENCY. CYCLES PER OAT
a
i
24H
a
6
i
100
N
UNFILTERED CURRENT.
254 M AT GIBRALTAR C-2.
254 M AT GIBRALTAR C-2.
UNFILTERED PRESSURE.
10000 1
T
1000
1I
tI
0. 1
0. 01
T
0.01
+-iTrm.-F--1-..,,,mar0. 1
1
1
1
1
10
FREQUENCY. CYCLES PER OAT
1
liHH
100
95 PERCENT
T
95 PERCENT
T
0. 1
l
U. UUL $
1t
0. 0001
0.01
-I
H 1 f-
0. 1
I
I
I ri;;;T-F-1-; r 1 11
1
1
10
FREQUENCY. CYCLES PER DRY
1F
H
100
UNFILTERED TEMPERATURE.
254 AT GIBRALTAR C-2.
-UNFILTERED SALINITY.
254 M AT GIBRALTAR C-2.
0. 1
0.01
I
1-
0. 001
0.001
T
0. 0001
f
0. 0001 f
x
95 PERCENT
95 PERCENT
I
0.00001
0.01
i
ii i 11111
0. 1
+
11/11/11
1
I
I
1+ 11111
10
FREQUENCY. CYCLES PER DRY
+I 1 r 1111
100
0. 00001
0.01
i
i
i ""Al
0. 1
I
11/11/11
1
I
I
1 111+F+ III I :;
10
1u0
FREQUENCY. CYCLES PER DRY
w
UNFILTERED CURRENT.
306 M AT GIBRALTAR C-2.
10000
UNFILTERED PRESSURE.
1000
11
100
0. 1 f
306 M AT GIBRALTAR C-2.
z
w
w
10
0.01
0.001
1
95 PERCENT
r-'
r
0. 1+ H THI1
0.01
0. 1
II
I I
IIII
1
HIf-1 III-t i I I
10
FREQUENCY. CYCLES PER OAT
100
0. 0 0 0 1
0.01
1
1
I 1 11111
0. 1
I
I I 111111
1
I
95 PERCENT
I I 1 1111!
10
FREQUENCY. CYCLES PER OAT
IIrrrrrn
100
306 M AT GIBRALTAR C-2.
UNFILTERED TEMPERATURE.
UNFILTERED SALINITY.
306 M AT GIBRALTAR C-2.
0.01 T
T
0.001 1
0.001
N
Z
W
O
0.0001
W
U
T
. 0001 j
Z
0. 00001
1
-1
0.00001
95 PERCENT
95 PERCENT
I
0. 000001 +
0.01
2
i
i i i :1&
0. 1
1
1
1
1
1 1111
1
11 1! 1m
10
FREQUENCY. CYCLES PER OAT
1
I
1111 111
100
0.000001
0.01
0. 1
1
10
FREQUENCY. CYCLES PER DAY
100
96
NOV
OCT
225
150
75
0
15
10
5
30
25
20
1985
25
20
NE-
30
Velocity
0 -75
-150
-225
U Component..
I
1.A
A
A
A
225
150
A
hhlAh
75 m
0-
i
r
225
150
V Component-
-75
-150
-225
75
0
U -75
-150
-225
18
Temperature
Ih
l
hA
III m
VY
16
0
14
0N
r
12
100
Pressure
0
0
120
140
48
160
Uncorrected Conductivity
E
46
0
t
44
42
40
Corrected Salinity
A
38
36
I.
Ihhi
I
'y
i
v
34
123 m at Gibraltar C-2.
E
E
OCT
225
150
20
25
NOV
30
5
.10
15
97
1985
20
NE-
25
30
elocity
75
0
E -75
-150
-225
V
MOON
U Component
ft
225
150
75
0M
-75 E
-150
-225
225
V Component
150
75
0
E -75
-150
-225
18
Temperature
16
12
120
Pressure
20
0
140
U
-0 160
180
48
Uncorrected Conductivity
46
0
44
40
Corrected Salinity
36
34
143 m at Gibraltar C-2.
42
E
E
98
NOV 1985
OCT
30
25
10
15
25
20
30
Velocity
U Component:
0-
J
1141, Id
225
V Component-'
150
75
' -75
0
225
150
-75
-150
-225
WA
01114 Am
-150
-225
18
Temperature
ALA
A
M
12
120
Pressure
20 140
0
0
0
160
48
180
Uncorrected Conductivity
44
Corrected Salinity
40
38
0
0
36
AA
uurur
R
A 1
Mb
1
V
MP
u1
1
34
153 m at Gibraltar C-2.
42
E
E
99
OCT
20
1985
NOV
25
30
5
10
15
25
20
30
18
Temperature
A
190
0
i
W
M
I
W W
W
U
12
0 200
Pressure
210
220
48
Uncorrected Conductivity
0
44 E
Corrected Salinity
Ni
m
TR I 1V' t
34
191 m at Gibraltar C-2.
42
100
OCT
NOV
25
30
D-T- T I I I- I
N<--
20
150
5
10
15
1985
25
20
30
I
Velocity
75
0
-75
-150
150
75
0
-75
-150
150
V Component
75
4)
0
!IAARARMARi8I
E
u -75
-150
15
Temperature
71
LJU
250
0
14
13
Pressure
12
260
Q) 270
280
Uncorrected Conductivity -
46
E
45
L0
44
39
Corrected Salinity
38
a-
37
36
254 m at Gibraltar C-2.
43
E
E
101
NOV 1985
OCT
150
100
50
0
20
25
30
5
15
10
20
25
30
E -50
-100
-150
OR"
HIIIH111,11
150
100
Q)
U Component 4
11/11/11
1
1
1
k
WWWIIIIIII
V Component
150
100
50 Q)
0
-50 E
-100
-150
50
0
E -50
-100
-150
I
I
KA4 A
14.0
Temperature
13.5 0
rn
a
13.0 °
305
12.5
Pressure
a
U
310
ti.
315
320
45.5
Uncorrected Conductivity I
45.0
0
r-
44.5 E
E
39.0
44.0
Corrected Salinity
38.5
0
0
38.0
37.5
306 m at Gibraltar C-2.
102
NOV 1985
OCT
225
.
30
25
20
5
30
25
20
15
10
FI
150
75
0
123 M
-75
-150
.-225
225
150
75
143 M
4)
-75
-150
-225
225
150
75
aIoI
0
153 M
Rim u I
-75
-150
-225
191 M
225
150
75
0
254 M
"IN
E -75
-150
-225
225
150
306 M
75 a
0
-75
150
1
1
1
1
1
1
1
1
1
1
1
i
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Velocity at Gibraltar Mooring C-2.
1
-1
1
1
1
L -225
C
U
103
OCT
225
20
1985
NOV
30
25
10
5
20
15
30
25
T
150
75
0
AA
123 M
AW
jlp
-75
a
-150
-225
I
225
A
A
W
A
w
Y
b
yVIV
150
75
0
75
143 M
A
1
I
w
N
VYY
-150
225
1-225
150
75
0
A
0 -75
t
-150
-225
ri r r
r
I
I
I
r r
A
r
153 M
rr
r
191 M
225
Qu
150
75
0
E -75
-150
-225
l
1
1
1
t
I
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
i
1
1
1
1
1
1
1
U Component at Gibraltar Mooring C-2.
1
1
-225
4)
1-1
104
NOV
OCT
25
30
5
15
10
1985
25
20
30
123 M
143 M
-
100
75
50
25 N
01,
-25 EU
-50
75
-100
153 M
191 M
N
100
75
50
25
0
254 M
E
.
I
E -25
-50
-75
-100
N
I
RM
I
oWpqoy4m
m
306 M
100
75
50
25
011-1
-25 E
F
-50 "
I
V Component at Gibraltar Mooring C-2.
-75
-100
105
NOV
OCT
25
30
5
10
15
1985
20
25
30
18
16 j
rn
140
12
18
140
12
18
12
Temperature at Gibraltar Mooring C-2.
106
NOV
OCT
100
0
20
25
30
15
10
120
1985
20
25
123 M
30
--t
j
U
140
120
160
143 M
-1
160
I
180
140
160
153 M
U
0 180
0
200
190
250
220
260
254 M
U
0 270
305
280
306 M
320
Pressure at Gibraltar Mooring C-2.
107
20
1985
NOV
OCT
25
30
10
5
25
20
15
30
39.0
a
37.0
36.0
123 M
A
38.0
-I
A
UI
UyuvgUUVVV9VUV
39.0
AA
38.0
1
143 M
V
a
37.0 w
-I 36.0
IVVV4IVYV'iVW
39.0
38.0
l fl
A
.
CL
T
37.0
36.0
RY
153 M
A
Iy'yVVVVIIVI
r
RnnP
U
m
IU
M
Y
V
m
rn
TT
r
191 M
38.0
37.0
-I 36.0
39.0
38.0
-
CL
0 37.0
-I-Y7TvYV7
254 M
36.0
-I 39.0
306 M
38.0
a
37.0°36.0
Corrected Salinity at Mooring C-2.
109
Mooring C
- 2B
1985
OCT
NOV
1986
DEC
"11A11111111111
JAN
1
1,i'1,.I I d,I1 .I,I111
FEB
MAR
APR
JUN
MAY
JUL
1
PERIOD I
SEP
OCT
PERIOD II
Sy
90M
AUG
1
S-7
P R
C
112 M
r1
P
Co
.`.
S
135M
TT
P R
n
C
181 M
S
0
T
-V
P n
Cd
SR
233M
a
T`
P
C
cs
S n
299 M
c
B cs
T
P
C
n
DATA RETURN FROM GIBRALTAR C-2B.
41
STATISTICS
MOORING GIBRALTAR C-2B
29 MAY 86 - 13 OCT 86
5649/20
90 m
6590/17
112 m
MEAN
SD
T
P
93.06
14.03
-1.94
14.43
101.60
C
43.60
S
36.63
54.04
100.63
35.42
0.84
10.31
0.53
0.84
7.50
-248.00
-219.00
12.72
91.20
41.19
33.45
307.10
253.50
184.70
17.52
169.70
45.22
39.02
3948
3948
3948
3948
3948
3948
3948
A cycling problem, probably caused by line
vibration, created repeated cycles in all
paramaters.
The additional cycles were identified
by repeated constant speed values and were
eleminated.
The rotor fell off 19 AUG and the
record was terminated then; without the
speed record it was impossible to identify the
spurious cycles.
The very low salinities are a
result of high temperatures 14 AUG 86 (0844 to
1044).
The suspicious points have been retained.
s
90.98
-1.64
0.24
13.92
122.86
44.12
36.95
47.68
95.87
36.86
0.71
10.73
0.58
0.93
12.30
-216.10
-199.30
12.67
112.60
41.70
35.20
279.40
188.40
191.20
16.53
186.90
45.87
38.57
1500
1500
1500
6566
6566
6566
6566
This meter lost its rotor after 0003 30 Jun 86.
92.85
-26.56
-13.37
13.55
150.51
44.41
37.41
45.85
93.87
32.07
0.59
11.12
0.62
0.92
9.90
-221.30
-126.20
12.59
135.60
41.70
35.36
223.40
169.70
132.00
15.68
206.00
46.08
38.46
3966
3966
3966
6566
6566
6566
6566
A speed dropout has been bridged in lines
2603 - 2615 (2321 22 JUL 86 - 0521 23 JUL 86).
The meter lost its rotor after 0851 20 AUG 86.
s
u
v
u
v
T
P
C
S
6593/15
135 m
HALF-HOURLY UNFILTERED DATA
35°54.74'N,
5°44.55'W
Bottom depth: 310 m
PERIOD II
s
u
v
T
P
C
S
MIN
MAX
LENGTH
COMMENTS
(speed, u, and v are given in cm/sec; Temperature in °C; Pressure in decibars; Conductivity in mmho/cm;
and Corrected Salinity in ppt. The sampling rate is 30 min.)
MEAN
5886/20
s
80.55
181 m
u
v
-47.27
-19.36
13.20
191.91
44.47
37.91
T
P
C
S
5648/28
233 m
36.90
77.31
35.37
0.41
9.55
0.43
0.68
C
80.22
-56.94
-21.25
12.98
247.23
44.75
S
38.28
38.84
56.01
33.36
0.17
6.70
0.19
0.22
s
62.07
-38.94
-25.51
12.95
305.63
44.60
38.33
29.58
38.19
33.20
0.08
1.20
0.08
0.11
s
u
v
T
P
1241/38
299 m
SD
u
v
T
P
C
S
MIN
MAX
LENGTH
COMMENTS
Direction, u, and v have been eleminated beyond
line 1979 (2302 9 JUL 86). The meters direction
7.30
188.50
6566
-186.20
-119.70
12.83
182.80
41.76
126.90
70.20
15.29
1979
1979
6566
243.00
6566
45.35
38.47
6566
6566
193.30
105.10
85.80
14.53
275.30
45.33
38.48
4413
4413
4413
6564
6564
6564
6564
Speed has been bridged in lines 1049 - 1060 (1426
20 JUN 86 - 1956 20 JUN 86). Speed, u, and v
have been zeroed after line 4413 (1626 29 AUG
136.10
103.10
80.50
13.87
6563
6563
6563
6563
Speed dropouts were bridged at the following locations:
lines 1256 - 1309 (2153 24 JUN - 0023 26 JUN); 2541 2548 (1623 21 JUL - 1953 21 JUL); 2657 - 2669 (0223 24
309.80
6563
44.82
38.42
6563
6563
34.98
6.20
-190.90
-125.70
12.85
235.20
43.24
0.80
-125.40
36.22
-109.30
12.86
301.60
43.61
36.96
vane evidently broke off at this point.
Conductivity has been bridged in lines 1366 - 1376
(0432 27 JUN 86 - 0932 27 JUN 86).
86) when the meter lost its rotor.
JUL - 0823 24 JUL); 4017 - 4025 (1023 21 AUG - 1423 21
AUG); and 5285 - 5297 (2023 16 SEP - 0223 17 SEP).
Conductivity was bridged in lines 1936 - 1951 (0153 9
JUL - 0923 9 JUL) & 2489 - 2500 (1423 20 JUL - 1953 20
JUL). There are suspicious changes in the level of the
conductivity record on 25 JUN and 9 JUL. The file is
about 1 hour short, the clock appears accurate within
two minutes, so two cycles may have been lost within
the file.
(speed, u, and v are given in cm/sec; Temperature in °C; Pressure in decibars; Conductivity in mmho/cm;
and Corrected Salinity in ppt. The sampling rate is 30 min.)
STATISTICS
MOORING GIBRALTAR C-2B
31 MAY 86 - 12 OCT 86
MEAN
5649/20 u
90 m
v
T
P
C
S
6590/17 u
112 m
v
T
P
C
S
6593/15 u
135 m
v
T
P
C
S
PERIOD II
SD
6-HOURLY FILTERED DATA
35°54.74'N,
5°44.55'W
Bottom depth: 310 m
MIN
MAX
LENGTH
COMMENTS
14.02
-1.75
14.44
101.48
43.60
36.62
17.67
8.37
0.32
3.61
0.27
0.37
-22.31
-32.87
13.89
95.88
42.80
35.52
55.13
29.19
15.49
111.70
44.08
37.43
318
318
318
318
318
318
(see comments on half-hourly statistics page)
-3.32
-0.74
13.92
122.89
44.13
36.95
16.93
7.69
0.20
3.83
0.34
0.37
-32.36
-13.76
13.52
115.91
43.11
36.00
35.96
17.82
14.58
130.96
44.68
37.65
114
114
537
537
537
537
(see comments on half-hourly statistics page)
-26.75
-13.51
13.55
150.55
44.41
37.42
12.83
3.51
0.14
4.23
0.26
0.26
-61.80
-21.09
13.25
140.22
43.55
36.72
12.13
-1.55
13.92
159.85
44.86
37.94
320
320
537
537
537
537
(see comments on half-hourly
statistics page)
(speed, u, and v are given in cm/sec; Temperature in °C; Pressure in decibars; Conductivity in mmho/cm;
and Corrected Salinity in ppt. The sampling rate is 360 min.)
MEAN
5886/20 u
181 m
v
T
P
C
S
5648/28 u
v
233 m
T
P
C
S
1241/38 u
v
299 M
T
P
C
S
SD
MIN
MAX
LENGTH
COMMENTS
-48.13
-19.49
13.20
191.95
44.47
37.91
12.59
4.59
0.10
3.20
0.13
0.16
-78.62
-29.85
12.96
185.79
44.00
37.31
-20.72
154
154
537
537
537
537
(see comments on half-hourly statistics page)
-10.39
13.57
198.85
44.69
38.29
-57.06
-20.89
12.98
247.26
44.75
38.28
8.28
8.13
0.06
2.00
0.16
0.07
-77.70
-40.62
12.88
243.43
44.54
38.11
-39.27
-0.40
13.16
252.03
45.24
38.46
357
357
536
536
536
536
(see comments on half-hourly statistics page)
-39.06
-25.50
12.95
305.62
44.60
38.33
8.89
7.33
0.03
0.74
0.07
0.07
-63.06
-43.76
12.88
304.27
44.31
38.02
-13.65
-7.59
13.03
307.14
44.75
38.39
536
(see comments on half-hourly statistics page)
536
536
536
536
536
(speed, u, and v are given in cm/sec; Temperature in °C; Pressure in decibars; Conductivity in mmho/cm;
The sampling rate is 360 min.)
and Corrected Salinity in ppt.
115
90 M AT GIBRALTAR C-2B. 29 MAY 86 - 19 AUG 86. TAPE 5649/20.
Mean
0.04
0.03
0.02
0.01
0.00
25 50 75 100 125 150 175 200 225 250 275 300 325 350
Speed, cm per sec
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, Degrees True
Mean
0.40 -r
0.30
0.20 t
0.10 t
0.00
'
I
90
100
110
120
130
140
Pressure, Decibars
150
160
170
116
90 M AT GIBRALTAR C-2B. 29 MAY 86 - 19 AUG 86. TAPE 5649/20.
Mean
0.12
0.10
0.08
0.06
0.04
0.02
0.00
12
13
14
18
17
16
15
Temperature, Degrees C.
J Mean
0.00
41.0 41.4 41.8 42.2 42.6 43.0 43.4 43.8 44.2 44.6 45.0 45.4 45.8 46.2
Conductivity, Mmho/cm
Mean
0.40
0.30
0.20
0.10
.---T
0.00
33
34
35
1
36
i
37
Salinity, PPT
PP41
38
L,
39
40
117
112 M AT GIBRALTAR C-2B. 29 MAY 86 - 13 OCT 86. TAPE 6590/17.
t. Mean
0.05 T
Ji
0.04 t
Ui
0.03 t
0.02 t
0.01 t
0.00
0
25
50
75
100 125 150 175 200 225 250 275 300
Speed, cm per sec
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, Degrees True
Mean
0.30 T
0.25
0.20
0.15
0.10
0.05
0.00
110
120
130
140
150
160
Pressure, Decibars
170
180
190
118
112 M AT GIBRALTAR C-2B. 29 MAY 86 - 13 OCT 86. TAPE 6590/17.
I Mean
0.20
0.15
0.10
0.05
0.00
12.0 12.4 12.8 13.2 13.6 14.0 14.4 14.8 15.2 15.6 16.0 16.4 16.8 17.2
Temperature, Degrees C.
Mean
0.25
0.20
0.15
0.10
0.05
0.00
41.0 41.4 41.8 42.2 42.6 43.0 43.4 43.8 44.2 44.6 45.0 45.4 45.8 46.2
Conductivity, Mmho/cm
Mean
0.20
0.15
0.10
0.05
0.00
35.0 35.4
35.8 36.2
36.6 37.0
37.4 37.8
Salinity, PPT
38.2 38.6
39.0
119
135 M AT GIBRALTAR C-2B. 29 MAY 86
-
13 OCT 86.
TAPE 6593/15.
Mean
0.05 T
0.04
0_
0.01 t
0.00 -1-H
0
25
50
75
100
125
150
175
200
225
250
Speed, cm per sec
0.25
0.20
0.15
0.10
0.05
0.00
0
30
60
120 150 180 210 240 270 300 330 360
Direction, Degrees True
90
I, Mean
0.30
0.25
0.20
0.15
0.10
0.05
0.00
130
140
150
160
170
180
Pressure, Decibars
190
200
210
120
135 M AT GIBRALTAR C-2B.
29 MAY 86 - 13 OCT 86. TAPE 6593/15.
I Mean
0.30
0.25
0.20
0.15
0.10
0.05
+1_
0.00
12.0
12.4
12.8
13.6
13.2
14.0
14.8
14.4
15.6
15.2
16.0
Temperature, Degrees C.
Mean
0.40 T
0.30
0.20
0.10
0.00
41
42
45
44
43
47
46
Conductivity, Mmho/cm
Mean
0.40
0.30 t
0.20 t
0.10
0.00
35.0
35.4 35.8 36.2
36.6
37.0
37.4
Salinity, PPT
37.8 38.2
38.6
39.0
121
181 M AT GIBRALTAR C-2B. 29 MAY 86 - 13 OCT 86.
TAPE 5886/20.
I Mean
0.06
0.05
0.04
0.03
0.02
0.01
0.00
25
0
50
75
100
150
125
175
200
Speed, cm per sec
0.20
0.15
0.10
0.05
0.00
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, Degrees True
Mean
0.00
180
190
200
210
220
230
Pressure, Decibars
240
250
122
181 M AT GIBRALTAR C-2B. 29 MAY 86 - 13 OCT 86. TAPE 5886/20.
Mean
0.50
0.40
0.30
0.20
0.10
0.00
12.0
12.4
12.8
13.2
13.6
14.0
14.4
14.8
15.2
15.6
16.0
Temperature. Degrees C.
Mean
0.50
0.40
0.30
0.20
0.10
0.00
41.0 41.4 41.8 42.2 42.6 43.0 43.4 43.8 44.2 44.6 45.0 45.4 45.8 46.2
Conductivity, Mmho/cm
Mean
0.60
0.50
0.40
0.30
0.20
0.10
0.00
34.0 34.4 34.8 35.2 35.6 36.0 36.4 36.8 37.2 37.6 38.0 38.4 38.8 39.2
Salinity, PPT
123
233 M AT GIBRALTAR C-2B. 29 MAY 86 - 13 OCT 86. TAPE 5648/28.
4, Mean
0.08
0.06
0.04
0.02
0.00
25
0
50
75
100
125
150
175
200
Speed, cm per sec
0.25
0.20
0.15
0.10
0.05
0.00
0
30
60
120 150 180 210 240 270 300 330 360
Direction, Degrees True
90
4. Mean
0.30
0.25
0.20
0.15
0.10
0.05
0.00
235 239 243 247 251 255 259 263 267 271 275 279 283
Pressure, Decibars
124
233 M AT GIBRALTAR C-2B. 29 MAY 86 - 13 OCT 86. TAPE 5648/28.
.
Mean
0.60
0.50
0.40
0.30
0.20
0.10
0.00
12.0
12.5
13.0
13.5
14.0
14.5
15.0
Temperature, Degrees C.
Mean
0.40
0.30
0.20
0.10
0.00
43.0
43.5
44.0
``"d,
44.5
45.0
45.5
46.0
Conductivity, Mmho/cm
4. Mean
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
36.0
36.5
37.0
37.5
Salinity, PPT
38.0
38.5
39.0
125
299 M AT GIBRALTAR C-2B. 29 MAY 86 - 13 OCT 86. TAPE 1241/38.
4, Mean
0.030 T
0.025
0.020
0.015
0.010
0.005
0.000
10
20 30 40 50 60 70 80 90 100 110 120 130 140
Speed, cm per sec
0.25
0.20
0.15
0.10
0.05
0.00
0
30
60
120 150 180 210 240 270 300 330 360
Direction, Degrees True
90
4, Mean
0.00
298
300
302
304
306
308
Pressure, Decibars
310
312
314
126
299 M AT GIBRALTAR C-2B. 29 MAY 86 - 13 OCT 86. TAPE 1241/38.
Mean
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
12.8 12.9 13.0 13.1 13.2 13.3 13.4 13.5 13.6 13.7 13.8 13.9
Temperature, Degrees C.
Mean
0.00
43.60
43.85
44.10
44.35
44.60
44.85
45.10
Conductivity, Mmho/cm
Mean
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
36.90
37.15
37.40
37.65
37.90
Salinity, PPT
38.15
38.40
38.65
127
90 M AT GIBRALTAR C-2B.
29 MAY 86 - 19 AUG 86. TAPE 5649/20.
Nt
V component
(North)
128
112 M AT GIBRALTAR C-2B. 29 MAY 86 - 30 JUN 86. TAPE 6590/17.
Nt
V component
(North)
129
135 M AT GIBRALTAR C-2B. 29 MAY 86 - 20 AUG 86. TAPE 6593/15.
Nt
-2100
-1750
-1400
-1050
-r 350 Km
-700
350 Km
-350
-350
-700
1 -1050
V component
(North)
130
181 M AT GIBRALTAR C--2B.
29 MAY 86 - 9 JUL 86. TAPE 5886/20.
Nt
-1800
-1500
-1200
-900
300 Km
-600
300 Km
-300
-300
-600
-900
V component
(North)
U component
(East)
131
233 M AT GIBRALTAR C-2B. 29 MAY 86 - 29 AUG 86.
TAPE 5648/28.
Nt
-4800
-4000
-3200
-2400
800 Km
-1600
800 Km
-800
-800
-1600
1- -2400
V component
(North)
U component
(East)
132
299 M AT GIBRALTAR C-2B. 29 MAY 86 - 13 OCT 86. TAPE 1241/38.
NT
T 1250 Km
1250 Km
-1250
-2500
-3750
V component
(North)
U component
(Eost)
UNFILTERED CURRENT.
90 M AT GIBRALTAR C-28.
100000
UNFILTERED PRESSURE.
10000
90 M AT GIBRALTAR C-28.
1000 1
1000
I I
100
I
10
AL
I
1t
U
I
Y
95 PERCENT
0. 1
1
0.01
I
1
1
1
1
1111
0. 1
1
!
1 1ii1ii+i1 11111!
1
10
FREQUENCY. CYCLES FEB OAT
,
,,
95 PERCENT
0.01
0.01
1
100
i
1
1
as
0. 1
4
1
1
1 1 1i;;-1
111 1 ; 1111
10
FREQUENCY. CYCLES PER DAY
100
90 M AT GIBRALTAR C-2B.
UNFILTERED TEMPERATURE.
UNFILTERED SALINITY.
90 M AT GIBRALTAR C-2B.
I
r
0.01
1
I
1
I
1
V
L.-
0.001
0. 001
95 PERCENT
0.0001 +
0. 01
11 1111111
0. 1
I I 1111111
1
I
61
10
FREQUENCY. CYCLES PER DAY
111
100
95 PERCENT
0.0001 -+-f-++ f
0.01
++++++1.1-i
0. 1
{
1 111111
1
+
+
+ 1+111$
10
FREQUENCY. CYCLES PER DRY
f--iT111111
100
UNFILTERED CURRENT.
112 M AT GIBRALTAR C-2B.
100000
UNFILTERED PRESSURE.
10000
II
1000#
112 M AT GIBRALTAR C-2B.
1000
p
100
I
100
T
11
V
10
11
it
T
'I
0. 1
95 PERCENT
0. 1
0.01
1
1
1
1
1 1 111
-i-i-Tii 1111 -HT t 1111
0. 1
FREQUENCY.
1
10
CYCLES PER DRT
I
t
II
100
ac PFRrPMT
HTi t;i-I
0.01
0.01
0. 1
I
lIIIII
1
I
I
IIIIII
10
FREQUENCY. CYCLES PER DRY
1
I
1111111
100
UNFILTERED TEMPERATURE.
112 M AT GIBRALTAR C-2B.
UNFILTERED SALINITY.
112 M AT GIBRALTAR C-2B.
10
1t
0. 1
I
I
11
I
0.01
0.01
0. 001
-Z_
0.001
#
95 PERCENT
0. 0001
0.01
1
1
1
1 0 fats
0. 1
1
i
1
1 11111
1
F
i 1 11 i1! ,Trm
I
-,
10
FREQUENCY. CYCLES PER DAT
100
0. 0001
0.01
1
1
1
1
1 1111
0. 1
,
,
1 11 1111
1
,
95 PERCENT
1 1 111 1 -,
10
FREQUENCY, CYCLES PER DAY
y-H++W
100
UNFILTERED CURRENT.
135 M AT GIBRALTAR C-2B.
100000
UNFILTERED PRESSURE.
10000
1000
1000
100
135 M AT GIBRALTAR C-2B.
A
z
100
z
I
10
it
11
10
W
Ywll
0. 1
95 PERCENT
0.01 11/11/11
0. 1
0.01
95 PERCENT
0. 1
1
10
FREQUENCY. CYCLES PER OAT
100
0. 01
0. 1
6{ 9
0
0
0
iAA
1
i
i
i Aitiii
10
FREQUENCY. CYCLES PER DAY
i
i
i IFFFIi
100
UNFILTERED TEMPERATURE.
135 M AT GIBRALTAR C-2B.
UNFILTERED SALINITY.
135 M AT GIBRALTAR C-2B.
10
10
1
f
I
1f
1f
II
wl
0.01
I
i
M
I
0.001
0.001
95 PERCENT
I
0. 000 1 i-rT 11 11H
0.01
0. 1
i
1
111111
1
+
11+1111
10
FREQUENCY. CYCLES PER DAY
i
i I
i i
iiH
100
0.0001 i
0.01
i
:;a
0. 1
i
11 11 i+
1
1
1
1
95 PERCENT
111H! 1. 1
10
FREQUENCY. CYCLES PER DAT
100
UNFILTERED CURRENT.
181 M AT GIBRALTAR C-2B.
100000
UNFILTERED PRESSURE.
10000
181 M AT GIBRALTAR C-2B.
1000
1000 t
I
I
100
11
1
i
100
i
10
A
I
10
0. 1
95 PERCENT
0. 1
0.01
0. 1
FREQUENCY,
1
10
CYCLES PER DAY
100
95 PERCENT
0.01 I
0.01
1
b
1
i
a
1
11
0. 1
o
i 111111
1
A
i
A
m
i
6
i
i
a
10
FREQUENCY. CYCLES PER OAT
+
i
i+H-H-I
100
0
UNFILTERED SALINITY.
UNFILTERED TEMPERATURE.
181 M AT GIBRALTAR C-2B.
181 M AT GIBRALTAR C-2B.
0. 1
i
I
I
0.01
I
I
I
0. 001
r
Y
plN
0. 01
I
Y
0. 001
0.0001
95 PERCENT
0. 0001
0.00001 +
0.01
I
1
ri l
1
11/11/11
0. 1
1
HTriii#
10
1
I
I
I, ii
95 PERCENT
100
0. 0 0 0 0 1
FREQUENCY.
CYCLES PER DAY
0.01'
1
1
1
1 11111
0.1
1
1
1
1
1 1111
1
11 1
1
1 1111
10
FREQUENCY. CYCLES PER DRY
I}1t'{}I{
100
UNFILTERED CURRENT.
233 M AT GIBRALTAR C-2B.
100000
UNFILTERED PRESSURE.
233 M AT GIBRALTAR C-2B.
1000
10000
I
1000
I
100
I
10
0.01f
I
95 PERCENT
0. 1
0. 01
1
1
1
I I1111
0. 1
!
1
1
1
1 1111
1
I
1
1
11+11!
10
FREQUENCY. CYCLES PER DAY
i
t
95 PERCENT
T
0. 0 0 1
100
I
0.01
1
1
1
111111
0. 1
1
1
1
11 1111
1
I
I
11 1
1111
-F-1-1 1
10
FREQUENCY. CYCLES PER DAY
1 1111
100
233 M AT GIBRALTAR C-2B.
UNFILTERED TEMPERATURE.
UNFILTERED SALINITY.
233 M AT GIBRALTAR C-2B.
I
0.011
II
x
n
0. 1
.
T
11
0.001 *
I I
III
I
11
0.001
0. 0001
T
0.0001
0. 00001 t
1
95 PERCENT
95 PERCENT
0. 000001 {
0.01
1
1
1
111111
0. 1
+
1
1+11111
1
1
1
1
1, H;;
10
FREQUENCY, CYCLES PER DAY
100
0.00001 10.01
''i""
0. 1
H+1111;11
1
1111+41!
10
FREQUENCY. CYCLES PER DAY
1
1
.
111
100
UNFILTERED CURRENT.
299 M AT GIBRALTAR C-25.
UNFILTERED PRESSURE.
299 M AT GIBRALTAR C-2B.
10000
1000
1i
I
11
100
I
0. 1 f
I
I
10
r
0.01 f
r
v
r
..,
0.001
95 PERCENT
I
0. 1
0.01
0. 1
FREQUENCY.
1
10
100
0.0001
0.01
95 PERCENT
iii
0. 1
i
1
i
iitw
10
CYCLES PER DAY
FREQUENCY. CYCLES PER DAY
-, r r,,,,,
100
UNFILTERED SALINITY.
299 M AT GIBRALTAR C-28.
UNFILTERED TEMPERATURE.
0.01 T
0.01
I
A
II
0. 001 f
f
0.001
I
V
0.0001
f
0.00001
I
0.000001 T
0.01
299 M AT GIBRALTAR C-28.
95 PERCENT
'
I
0
""
0. 1
I
I
I I1+m
1
I
I
I 11/11/11 1 111111
100
10
FREQUENCY. CYCLES PER DAY
0.000001
0.01
1
I1111111
0. 1
Ii 111111
1
1
I
11
95 PERCENT
Iii HH
10
FREQUENCY. CYCLES PER OAT
III1111i
100
1986
75
50
25
APR
MAY
JUN
JUL
145
AUG
SEP
O CT
NOV
Velocity
0
E -25
-50
-75
U Component
75
50
25
a)
0
-25
-50
-75
75
Q0
50
25
V Component
0
E -25
-50
-75
17.0
Temperature
16.0
15.C
14.0
13.0
90
95
Pressure
100
105
110
47.0
115
Un corrected
Conductivity
46.0 E
45.0
0
44.0
43.0 E
42.0
39.0
38.0
Corrected Salinity
0-37.0
36.0
35.0
90m at Gibraltar C-2B.
146
1986
50
25
0
N
MAY
75
JUL
AUG
SEP
OCT
NOV
Velocity
N
E -25
-50
-75
75
U Component
4)
0
V
-25
-50
-75
IV
75
50
25
50
25
V Component
0
-25
-50
-75
15.0
Temperature
14.50
a)
14.00
110
Pressure
13.5
120
0
130
47.0
140
Uncorrected Conductivity
46.0 E
45.0
0
44.0
43.0 E
42.0
39.0
38.0
Corrected Salinity
x37.0
36.0
35.0
112m at Gibraltar C-2B.
147
1986
75
50
25
0
E -25
-50
-75
APR
MAY
N F_
JUL
JUN
I
AUG
SEP
OCT
NOV
Velocity
INNIN
ke
\1
I
U Component
75
50
25
0
-25 u
-50
-75
75
50
25
V Component
0
-25
-50
-75
14.5
Temperature
14.0
U
13.5 c
0
13.0
130
Pressure
12.5
140
150
160
47.0
170
Uncorrected Conductivity
46.0 E
45.0
44.0 E
43.0 E
39.0
Corrected Salinity
38.0
Q37.0
36.0
35.0
135m at Gibraltar C-2B.
42.0
148
75
50
25
1986
MAY
N F--
JUL
AUG
OCT
P
NOV
Velocity
0
-25
-50
-75
U Component
75
50
25
111
V Component
0
-25
-50
-75
Temperature
170
180
Pressure
190
200
21
Uncorrected Conductivity
39.1
38.
Corrected Salinity
Q 38.
37.
37.
181m at Gibraltar C-2B.
149
1986
75
APR
MAY
JUL
AUG
SAP
OCT
NOV
I
50 NE-
25
JUN
Velocity
0
U
- 25
-50
-75
r-
tt-
U Component
75
50
25
0
-25 v
-50
-75
75
50
V Component
0
-25
-50
-75
Temperature
230
L
12.5
Pressure
240
250
260
270
45.5
Uncorrected Conductivity
39.0i-
Corrected Salinity
38.5
a 38.0
37.5
37.0
I
233rn at Gibraltar C-2B.
45.0 E
44.5
L
44.0
E
43.5
1986
150
75
JUN
MAY
APR
NOV
OCT
SEP
AUG
JUL
F
I
i
1
50
25
Velocity
0
0 -25
-50
-75
75
50
25 a)
U Component
00
1,
-25
-50
-75
75
50
25
0
V Component
E -25
-50
-75
14.5
14.0
Temperature
U
13.5
13.0
12.5
295
Pressure
300
:2 305
u
a)
310
45.5
315
Uncorrected Conductivity
45.0 E
44.50
E
44.0 E
43.5
39.0
Corrected Salinity
38.5
0-38.0
37.5
37.0
1
I
I
I
1
I
299 m at Gibraltar C-2B.
I
151
1986
4)
75
50
25
APR
JUN
MAY
JUL
AUG
NE-
OCT
SEP
90
NOV
M
0
E25
-50
-75
75
50
112 M
25 a
01,
-25
-50
-75
75
50
25
135 M
0
U-25
-50
-75
181 M
75
50
25 4)
0E
Cl)
-25
-50
-75
75
50
25
233 M
0
U-25
-50
-75
All,
75
50
299 M
ills
I
I
Velocity at Gibraltar C-2B.
25 a
-25
-50
-75
152
1986
75
UL
MAY
50
0 25
0
AUG
P
OCT
NOV
90 M
A
If
U -25
-50
-75
75
50
.4.
112 M
0
Is
v
25 a
%V
111
-25
-50
-75
75
50
25
135 M
0
U -25
-50
-75
75
181 M
50
25
aVi
0
75
50
25
-25
-50
-75
11-vv
233 M
0
U-2 5
-5 0
75
50
-7 5
299
25 a
0
-25
-50
-75
U Component at Gibraltar C-2B.
153
1986
75
50
25
0
AUG
JUL
MAY
OCT
SEP
NOV
90 M
vvw %J
NYR &nA'W0 4
0
A
V-vM
A
U -25
-50
-75
75
50
112
M
-50
-75
75
50
25
0
-25 0
250
135
M
0
U -25
-50
-75
181
M
75
50
25
4)
0e
-250
-50
-75
75
50
25
0
233 M
-25
-50
-75
75
50
299 M
25 a
0
-25
-50
-75
V Component at Gibraltar C-2B.
154
1986
15.5
15.0
14.5
JUN
MAY
APR
I
I
I
AUG
JUL
nn A_
A
F7
NOV
OCT
SEP
90 M
0,14.0
13.5
13.0
12.5
15.5
15.0
112 M
14.56
C
14.0
13.50
13.0
12.5
15.5
15.0
v 14.5
o, 14.0
135 M
0 13.5
13.0
12.5
15.5
15.0
14.5
181 M
14.0
13.50
13.0
12.5
15.5
15.0
C3 14.5
233 M
rn 14.0
13.5
13.0
12.5
15.5
15.0
14.56
299 M
14.0
13.50
1
1
Temperature at Gibraltar C-28.
13.0
12.5
155
1986
80
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
90
2 100
110
100
120
110
120
130
140
130
140
v
150
160
170
170
180
190
200
210
230
240
- 250
U
260
280
270
290
300
310
320
Pressure at Gibraltar C-2B.
156
1986
APR
MAY
JUN
JUL
AUG
SEP
OCT
Corrected Salinity at Gibraltar C--2B.
NOV
1 57
Mooring C
-3
.
1986
1985
NOV
OCT
I
DEC
l l l l l l l l l i h l i -L-1
MAR
FEB
JAN
l
d
I
I
I
1
11
1
1
l l
t
11
t
1
1
1
1
1
1
1
1
1
1
A
1
1
f
1
1
1
1
1
1
i
1
I
PERIOD II
PERIOD I
110 M
s
e
T
P
c
o
s7
140 M
e7
Tg
--V
P7
CV
179 M
s
e
T
P
C Vo
i l l i i
r.
DATA RETURN FROM GIBRALTAR C-3.
OCT
SEP
AUG
JUL
JUN
MAY
APR
i
l l
l i l
1
1
1
1
1
1
STATISTICS
MOORING GIBRALTAR C-3
22 OCT 85 - 21 APR 86
5643/26
110 m
s
u
v
T
P
C
S
MEAN
SD
85.41
8.61
10.26
14.83
113.02
44.72
36.85
49.99
95.39
22.70
1.13
1.03
0.85
0.80
MEAN
5644/28
140 m
s
u
v
T
P
C
S
5645/25
179 m
s
u
v
T
P
C
S
PERIOD I
78.36
-4.66
4.12
14.29
142.92
44.73
37.78
SD
42.53
85.58
24.21
1.08
1.09
0.63
0.66
MEAN
SD
53.93
-22.69
-9.68
13.56
182.28
44.13
37.78
39.35
55.49
27.73
0.76
0.46
0.45
0.66
HALF-HOURLY UNFILTERED DATA
35°53.42'N,
5°44.20'W
Bottom depth: 190 m
MIN
2.40
-237.90
-133.50
12.83
111.00
41.68
35.65
MIN
0.80
-215.70
-93.40
12.79
135.20
42.19
35.86
MIN
0.80
-247.90
-172.90
12.68
180.90
42.24
35.86
MAX
LENGTH
247.90
237.10
107.70
18.13
120.00
47.88
38.50
8717
8717
8717
8717
8717
8717
8717
MAX
LENGTH
222.90
221.30
160.90
18.01
148.20
47.73
38.49
8717
8717
8717
8717
8717
8717
8717
MAX
LENGTH
247.90
165.90
103.60
17.12
=84.10
46.88
38.49
8717
8717
8717
8717
8717
8717
8717
COMMENTS
Two gaps in the speed record have been
bridged:
(0925 2 Jan 86 - 1625 2 Jan 86)
and (1525 4 Mar 86 - 0455 9 Mar 86).
Mooring C-3 recovered when the release was fired 21 April 1985.)
(Speed,
u, and v are given in cm/sec; Temperature in °C; Pressure in
and Corrected Salinity in ppt.
The sampling rate is 30 min.)
decibars;
Conductivity in mmho/cm;
STATISTICS
MOORING GIBRALTAR C-3
23 OCT 85 - 20 APR 86
MEAN
5643/26
110 M
u
v
8.69
C
10.29
14.83
113.03
44.72
S
36.85
t
P
MEAN
5644/28
140 m
u
v
T
P
C
S
-4.54
4.13
14.29
142.93
44.73
37.21
MEAN
5645/25
179 m
u
v
T
P
C
S
-22.66
-9.67
13.56
182.29
44.13
37.78
PERIOD I
SIX-HOURLY LLP FILTERED DATA
5°44.20'W
35°53.42'N,
Bottom depth: 190 m
SD
19.69
6.33
0.55
0.54
0.72
0.36
SD
17.88
6.47
0.39
0.61
0.49
0.32
SD
12.29
5.34
0.23
0.24
0.38
0.23
MIN
-46.11
-2.88
13.43
112.11
42.79
35.95
MIN
-56.13
-12.23
13.24
141.68
43.52
36.39
MIN
-66.76
-30.94
12.92
181.70
43.35
37.03
MAX
56.79
25.27
16.30
114.63
46.31
37.72
MAX
45.25
20.33
15.47
144.33
45.98
38.06
MAX
8.90
3.15
14.25
182.97
44.87
38.34
LENGTH
717
717
717
717
717
717
LENGTH
717
717
717
717
717
717
(see note on
half-hourly
statistic page)
LENGTH
717
717
717
717
717
717
Mooring c-3 was recovered when the release was fired 21 April 1986.
(U, and v are given in cm/sec; Temperature in °C; Pressure in
and Corrected Salinity in ppt.
decibars;
The sampling rate is 360 min.)
Conductivity in mmho/cm;
161
21 OCT 85 - 21 APR 86. TAPE 5643/26.
110 M AT GIBRALTAR C-3.
4. Mean
0.05
0.04
0.03
0.02
0.01
0.00
50
25
75
100
125
150
175
200
225
250
Speed, cm per sec
0.20
0.15
0.10
0.05
0.00
0
30
60
120 150 180 210 240 270 300 330 360
Direction, Degrees True
90
4. Mean
0.60
0.50
0.40
0.30
0.20
0.10
0.00
109
111
113
115
117
Pressure, Decibars
119
121
123
162
21 OCT 85 - 21 APR 86. TAPE 5643/26.
110 M AT GIBRALTAR C-3.
Mean
0.10 T
-fl
0.08 t
0.06 t
0.04 t
0.02 t
0.00
12
14
13
15
16
17
18
19
47
48
Temperature, Degrees C.
I Mean
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
41
43
42
44
45
46
Conductivity, Mmho/cm
Mean
0.25 T
0.20 t
0.15 t
0.10 t
0
35.0
35.4
35.8
36.2
36.6
37.0 37.4 37.8
Salinity, PPT
38.2 38.6
39.0
163
21 OCT 85 - 21 APR 86. TAPE 5644/28.
140 M AT GIBRALTAR C-3.
Mean
0.06
0.05
0.04
0.03
0.02
0.01
0.00
25
75
50
100
150
125
175
200
225
250
Speed, cm per sec
0.20 T
0.15
0.10
0.05
0.00
I..-mar'
0
30
--rte'
.... L1,
120 150 180 210 240 270 300 330 360
.
.
60
90
Direction, Degrees True
Mean
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
135
139
143
Pressure, Decibars
147
151
164
140 M AT GIBRALTAR C-3.
21 OCT 85 - 21 APR 86. TAPE 5644/28.
4. Mean
0.14
-fl
0.12
0.10
0.08
0.06
Z
0.04
0.02
.
0.00
12
13
17
16
15
14
I
.
.
.
.
.
18
19
Temperature, Degrees C.
Mean
0.20 T
0.15 t
0.10 t
42
47
46
45
44
Conductivity, Mmho/cm
Mean
0.20 T
0.15 t
0.10 t
0.05 t
0.00
35.0
35.4 35.8 36.2
36.6
'
37.0
'
37.4
Salinity, PPT
37.8
38.2 38.6
39.0
165
21 OCT 85 - 21 APR 86. TAPE 5645/25.
179 M AT GIBRALTAR C-3.
Mean
0.08
0.06
0.04
0.02
0.00
50
25
75
100
125
150
175
200
225
250
Speed. cm per sec
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
0
30
60
120 150 180 210 240 270 300 330 360
Direction, Degrees True
90
Mean
0.60
0.50
0.40
0.30
0.20
0.10
0.00
175
177
179
181
183
185
Pressure, Decibars
187
189
191
166
21 OCT 85 - 21 APR 86. TAPE 5645/25.
179 M AT GIBRALTAR C-3.
4. Mean
I
0.00
,
,
I
12
13
15
14
17
16
18
Temperature, Degrees C.
4. Mean
0.00
42.0 42.4 42.8 43.2 43.6 44.0 44.4 44.8 45.2 45.6 46.0 46.4 46.8 47.2
Conductivity, Mmho/cm
4. Mean
0.40
0.30 t
0.20 t
0.10 t
0.00
I-,--1
35.0 35.4
, - r-r ----r -I i4 rTi--r-T-i--r-i---1
38.2 38.6 39.0
35.8 36.2
36.6
37.0 37.4
37.8
Conductivity, Mmho/cm
167
110 M AT GIBRALTAR C-3. 21 OCT 85 - 21 APR 86. TAPE 5643/26.
NT
1800 Km
1-
-600
600
1200
1800 Km
-600
V component
(North)
U component
(East)
168
140 M AT GIBRALTAR C-3.
21 OCT 85 - 21 APR 86. TAPE 5644/28.
Nt
675 Km
450
F-
-900
-675
-450
225 Km
-225
-225
V component
(North)
U component
(East)
169
179 M AT GIBRALTAR C-3. 21 OCT 85 - 21 APR
86. TAPE 5645/25.
Nt
-3600
-3000
-2400
-1800
r 600 Km
-1200
600 Km
-600
-600
-1200
-1800
V component
(North)
U component
(East)
UNFILTERED CURRENT.
110 M AT GIBRALTAR C-3.
110 M AT GIBRALTAR C-3.
UNFILTERED PRESSURE.
100000
101
I
10000
1000
N
Z
0. 1
W
O
Cr)
z
W
0
W
U
Z
100
W
Q
Y
1
1
Q
0.01 f
x
W
Y
0
VI
0. 001
t
1
95 PERCENT
I
95 PERCENT
0.0001 {0.01
0. 1
-i
0.01
fiiiit
0. 1
!!i1!1 11 f
1
I
I
1 -A1016
10
a
I
-+
+-+-+++
0. 1
1
10
..IIrn
100
FREQUENCY. CYCLES PER DAT
FREQUENCY. CYCLES PER OAT
i--r++ii+i
100
110 M AT GIBRALTAR C-3.
UNFILTERED TEMPERATURE.
UNFILTERED SALINITY.
110 M AT GIBRALTAR C-3.
10
0. 1
I
I
I
I
1
0.01
0.01
1
0. 001 +
0. 001
95 PERCENT
0.0001
0.01
0. 1
1
10
FREQUENCY. CYCLES PER OAT
100
95 PERCENT
0.0001
0.01
0will
0. 1
1
11/11/4111 11
1
I
10
FREQUENCY. CYCLES PER OAT
I
I;
1
100
UNFILTERED CURRENT.
140 M AT GIBRALTAR C-3.
UNFILTERED PRESSURE.
140 M AT GIBRALTAR C-3.
100000
10000 $
2
1
11
1000
t
0. 1
100
I
I
I
0.01
III
0.001
95 PERCENT
1I
95 PERCENT
0. 0001
0.01
0. 1
1
10
0. 1
0.01
0. 1
1
10
FREQUENCY. CYCLES PER DRY
100
FREQUENCY. CYCLES PER DAY
100
UNFILTERED SALINITY.
UNFILTERED TEMPERATURE.
140
M AT GIBRALTAR C-3.
140 M AT GIBRALTAR C-3.
I
1f
I
x
0. 1
1
t
I
I
I
0.001
I
0.001
0. 0001
95 PERCENT
0. 0001
0.01
0. 1
95 PERCENT
2
0. 00001
1
10
FREQUENCY. CYCLES PER DAY
100
0.01
0. 1
1
10
FREQUENCY. CYCLES PER DRY
100
UNFILTERED CURRENT.
179 M AT GIBRALTAR C-3.
UNFILTERED PRESSURE.
179 H AT GIBRALTAR C-3.
100000
I
2
10000
0. 1 t
I
100 t
0. 001
t
1
v
Y
0. 0001
95 PERCENT
1I
95 PERCENT
0.00001 {
0.01
0. 1+--,--i I T;;111
0. 1
0.01
F f+ I 11111
FREQUENCY.
1
i
i
i i 1 i 111
10
CYCLES PER DAY
i+ I
I
I rill
100
11+1111 l 0 i 11im
0. 1
1
I
m
o AaAm
10
FREQUENCY. CYCLES PER DAY
I
I
+ 1 4111;
100
UNFILTERED SALINITY.
M AT GIBRALTAR C-3.
179
179 M AT GIBRALTAR C-3.
UNFILTERED TEMPERATURE.
11
0. 1 t
0. 1
I
I
t
I
I
v
I
r
w
0. 001
0. 001
t
95 PERCENT
2
0. 0001 t
0. 0001
0.01
I
95 PERCENT
2
0. 1
1
10
FREQUENCY. CYCLES PER OAT
100
0.00001
0.01
I
I
A
11
I
0. 1
I
1 111111
1
1
r
i i 11111
10
FREQUENCY. CYCLES PER OAT
1
1
111111
100
176
1986
1985
75
50
25
0
OCT
NOV
DEC
N-
JAN
FEB
MAR
APR
MAY
Vglocity
-25
-50
-75
U Component
75
50
25
-25
75
50
25
V Component
-50
-75
0
-25
-50
-75
Temperature
Pressure
115
Uncorrected Conductivity
47.0
46.0 E
45.0
INI
0
44.0 c
43.0 E
42.0
39.0
Corrected Salinity
38.0
36.0
35.0
11Om
at Gibraltar C-3.
1986
1985
FEB
DEC
75
50
25
--
177
APR
MAR
MAY
Velocity
0
E -25
-50
-75
75
U Component
50
25 0
LA
A
0
25 U
75
a
V Component
50
75
50
25
0
E -25
-50
-75
17.0
Temperature
16.0
15.0
14.0
0
0
13.0
140
Pressure
141
n 142
143
144
14
47.0
Uncorrected Conductivity
46.0 E
45.0
0
44.0
43.0 E
42.0
39.
Corrected Salinity
38.
6-37.
CL
36.
35.
1 40m
at Gibraltar C-3.
178
1986
1985
OCT
APR
MAR
FEB
JAN
DEC
NOV
MAY
Velocity
U Component
V Component
Temperature
Pressure
47.0
46.0 E
Uncorrected Conductivity
45.011-1
0
44.0 r43.0 E
42.0
Corrected Salinity
I
l
179m
I
I
I
at Gibraltar C-3.
179
1986
1985
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
11b M
75
50
25
-25
-50
-75
Velocity at Gibraltar Mooring C-3.
180
1986
1985
75
50
25
UU 1
ivvv
11
MAR
M--7FEB
DEC
APR
MAY
U
0
0-25
-50
-75
140
AJ
50
25
0
25 CC)
A A..A I
V
v
18
75
M
75
50
Y
179 M
0
u-25
-5
-7
U Component at Gibraltar Mooring C-3.
-25
-50
-75
181
1986
1985
75
50
25
Vl.l
IVVV
DEC
FEB
MAR
APR
MAY
110M
0
U-25
-50
-75
75
140 M
75
50
25 Q)
-25
-50
-75
179 M
C 25
co
50
0
0-25
-50
-75
V Component at Gibraltar Mooring C-3.
182
1986
1985
NOV
OCT
16.0
MAY
APR
MAR
FEB
JAN
DEC
A
I
110M
c) 15.0
rn
0 14.0
13.0
16.0
(3 15.0
179 M
rn
014.0
13.0
I
i
I
V
I
I
I
I
Temperature at Gibraltar Mooring C-3.
183
1986
1985
OCT
111
NOV
DEC
JAN
FEB
MAR
APR
MAY
-
'MOM
(I)
112
I.-
-O
0
113
Q)
114
141
115
140 M
142
143
0
°
a)
144
180
(I)
0
0
181
145
—
179 M
182
0 183
184
Pressure at Gibraltar Mooring 0—3.
184
1986
1985
39
NOV
OCT
DEC
FEB
JAN
MAY
APR
MAR
110M
38
00-37
36
39
35
140 M
38
37
36
39
35
179 M
38
a 37
36
I
35
I
1
1
Corrected Salinity at Gibraltar Mooring C-3.
1
185
Mooring C
- 3B
1986
1985
OCT
1
1
t
1
I
DEC
NOV.
I
11
1
1
1
1
1
1
1
J
1
1
1
1
11
,
1
1
1
11
1
1
1
1
MAY
APR
MAR
FEB
JAN
1
1
11
1
11j
I
1
PERIOD I
102 M
1
1
1
II
l
l
1
1
AUG
JUL
JUN
1
1
1
She
P--;7
C ta
1
1
1
1
1
J
1
1
1
1
OCT
SEP
1
1
1
1
1
1
1
1
1
1
1
1
PERIOD II
T V-
127 M
P
y
C y-S
172M
I
T
11 111 1 [fill 11 111 1111111111111111 1111111 1111111 11/11/11 1 111111 1 111111 fill 1 11/11/-1
DATA RETURN FROM GIBRALTAR C-3B.
STATISTICS
MOORING GIBRALTAR C-3B
28 MAY 86 - 26 JUN 86
MEAN
5643/27
102 m
MIN
MAX
LENGTH
COMMENTS
45.85
87.85
17.75
0.77
1.79
0.56
0.69
4.50
-208.10
-95.60
12.86
102.60
42.71
35.26
213.90
213.10
96.20
16.86
115.40
46.62
38.47
1263
1263
1263
1263
1263
1263
1263
The pressure record from meters 5643 shows a
significant depth increase at 2330 23 JUN
This is probably the time that the tension
86.
bar of the S-4 broke, releasing the tension at the
top of the mooring.
37.00
73.96
22.97
0.72
1.30
0.42
0.82
4.90
-165.80
-72.00
12.86
127.90
42.30
35.40
170.30
167.20
110.90
15.62
140.80
44.98
38.42
1091
1091
1091
1091
1091
1091
1091
Kelp was wrapped around the rotor and vane
This record was terminated 20 JUN
at recovery.
when the speed record went to zero and the
direction record became erratic.
S
68.98
9.14
6.73
14.15
133.14
44.22
36.87
s
41.01
u
v
-6.55
-2.28
13.59
174.97
44.06
37.52
23.62
42.51
19.61
0.66
0.40
0.36
0.79
0.80
-131.20
-84.40
12.85
173.10
136.80
119.40
59.00
16.39
175.50
45.77
38.47
1374
1374
1374
1374
1374
1374
1374
None of the variables at this meter show a
The buoyancy immediately above
change on 23 JUN.
RCM 5645 was apparently sufficient to keep the
line below the meter taut.
T
P
C
S
s
u
v
t
P
C
5645/26
172 m
SD
78.72
13.20
9.54
14.54
105.62
44.43
36.54
s
u
v
5644/29
127 m
HALF-HOURLY UNFILTERED DATA
35°53.42'N,
5°44.22'W
Bottom depth: 183 m
PERIOD II
T
P
C
S
.
42.55
35.82
Shortly after installation, the tension bar broke on the S-4, which was at the top of the mooring.
meter floated to the surface and was spotted by the crew of
the LYNCH.
The
The mooring was then released
prematurely.
(speed, u, and v are given in cm/sec; Temperature in °C; Pressure in decibars; Conductivity in mmho/cm;
and Corrected Salinity in ppt. The sampling rate is 30 min.)
STATISTICS
MOORING GIBRALTAR C-3B
30 MAY 86 - 25 JUN 86
MEAN
5643/27 u
102 m
v
T
P
C
S
5644/29 u
127 m
v
T
P
C
S
5645/26 u
172 m
v
T
P
C
S
6-HOURLY FILTERED DATA
35°53.42'N,
5°44.22'W
Bottom depth: 183 m
PERIOD II
SD
MIN
MAX
LENGTH
COMMENTS
(See comments on half-hourly statistics page.)
12.70
8.91
14.51
105.55
44.38
36.53
13.64
2.57
0.23
0.57
0.39
0.20
-30.21
3.56
13.92
104.83
43.67
36.18
41.99
16.07
14.96
107.87
45.41
37.13
95
95
95
95
95
95
9.24
5.63
14.12
133.15
44.19
36.86
10.15
3.17
0.18
0.34
0.22
0.16
-7.45
0.36
13.71
132.56
43.81
36.61
32.48
15.44
14.47
133.72
44.58
37.21
81
81
81
81
81
81
(See comments on half-hourly statistics page.)
-6.41
-2.48
13.58
174.98
44.04
37.52
7.30
2.76
0.11
0.17
0.17
0.22
-16.36
-10.02
13.29
174.68
43.76
37.06
12.41
2.45
13.83
175.25
44.51
37.78
105
105
105
105
105
105
(See comments on half-hourly statistics page.)
Shortly after installation, the tension bar broke on the S-4, which was at the top of the mooring. The
meter floated to the surface and was spotted by the crew of the LYNCH. The mooring was then released
prematurely.
(speed, u, and v are given in cm/sec; Temperature in °C; Pressure in decibars; Conductivity in mmho/cm;
and Corrected Salinity in ppt. The sampling rate is 360 min.)
189
102 M AT GIBRALTAR C-3B. 28 MAY 86 - 23 JUN 86.
TAPE 5643/27.
Mean
0.05 T
0.04 t
0.03 t
0.02 t
0.01 t
0.00
25
75
50
100
125
150
175
200
225
250
Speed, cm per sec
0.20
0.15
0.10
0.05
0.00
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, Degrees True
4, Mean
0.60
0.50
0.40
0.30
0.20
0.10
0.00
102
104
106
108
110
Pressure, Decibars
112
114
116
190
102 M AT GIBRALTAR C-3B. 28 MAY 86 - 23 JUN 86.
TAPE 5643/27.
j. Mean
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
I
I
'
I
;,
12.0 12'.4'12'.8'13.2 13.6 14.0 14.4'14'.8 15.2 15.6 16.0 16.4 16.8 17.2
Temperature, Degrees C.
Mean
z
0.00
-'
42.042.442.843.243.644.044.444.845.245.646.046.446.847.2
Conductivity, Mmho/cm
Mean
0.00 i---}-i--- -F-r- --I
35.0
35.4, 35.8 36.2
I
36.6
F---F- -T' I
I
37.0
37.4
Salinity, PPT
37.8
38.2 38.6
39.0
191
127 M AT GIBRALTAR C-3B.
28 MAY 86 - 20 JUN 86. TAPE 5644/29.
Mean
0.08 T
0.06
Rl
0.04
S
ti
0.02
0.00
25
0
50
75
125
100
150
175
200
Speed, cm per sec
0.20
0.15
0.10
0.05
0.00
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, Degrees True
.
Mean
0.60
0.50
0.40
0.30
0.20
0.10
0.00
127
129
131
133
135
Pressure, Decibars
137
139
141
192
28 MAY 86 - 20 JUN 86. TAPE 5644/29.
127 M AT GIBRALTAR C-3B.
4. Mean
0.12
0.10
0.08
0.06
0.04
0.02
000
12.0
12.4
12.8
13.2
13.6
14.0
14.4
15.2
14.8
15.6
16.0
Temperature, Degrees C.
4. Mean
0.20
0.15
0.10
0.05
0.00
42.0
42.5
43.0
43.5
44.0
44.5
45.0
Conductivity, Mmho/cm
4, Mean
----h'7---rr-r-r-T-F--r-rT-35.4. 35.8 36.2 36.6 37.0 37.4 37.8 38.2 38.6
0.00
35.0
Salinity, PPT
39.0
193
172 M AT GIBRALTAR C-3B. 28 MAY 86 - 26 JUN 86.
TAPE 5645/26.
Mean
0.00
20 30 40 50 60 70 80 90 100 110 120 130 140
Speed, cm per sec
0
10
0
30
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
60
90
120 150 180 210 240 270 300 330 360
Direction, Degrees True
Mean
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
167
169
171
173
175
177
Pressure, Decibars
179
181
183
194
172 M AT GIBRALTAR C-3B. 28 MAY 86 - 26 JUN 86.
TAPE 5645/26.
Mean
0.30
0.25
0.20
0.15
0.10
0.05
n 00
12.0
4 12.8 13.2 13.6 14.0 14.4 14.8 15.2 15.6 16.0 16.4 16.8 17.2
Temperature, Degrees C.
4. Mean
0.30
0.25
0.20
0.15
0.10
0.05
0 . 00
42.0
42.4 42.8
43.2
43.6
44.0
44.4
44.8
45.2 45.6
46.0
Conductivity, Mmho/cm
4, Mean
0.30
0.25
0.20
0.15
0.10
0.05
0.00
35.0
35.4
35.8 36.2 36.6
37.0
37.4
Salinity, PPT
37.8
38.2
38.6
39.0
195
102 M AT GIBRALTAR C-38. 28 MAY 86 - 23 JUN 86.
TAPE 5643/27.
NT
-- 240 Km
160
80
H
-80
80
160
240
320
400 Km
-80
V component
(North)
U component
(East)
196
127 M AT GIBRALTAR C-3B. 28 MAY 86 - 20 JUN 86. TAPE 5644/29.
NT
T 150 Km
100
50
-50
50
-L -50
V component
(North)
100
150
200 Km
197
172 M AT GIBRALTAR C-3B.
28 MAY 86 - 26 JUN 86. TAPE 5645/26.
N?
-180
-150
-120
-90
T 30 Km
-60
-30
30 Km
-30
-60
V component
(North)
U component
(East)
102 M AT GIBRALTAR C-3B
UNFILTERED CURRENT.
102 M AT GIBRALTAR C-3B.
UNFILTERED PRESSURE.
10000
T
11
1000
N
zw
O
w
Y
0.01
T
II
0.001
I
95 PERCENT
I
t
95 PERCENT
2
0. 1
0.01
i -i
0.0001
0.01
1
0. 1
1
10
FREQUENCY. CYCLES PER DAY
100
11111
0. 1
I
i4 411111
1
1
1
1
1
1 1111
10
FREQUENCY. CYCLES PER OAT
1
1
1
1 11;1;
100
UNFILTERED TEMPERATURE.
102 M FIT GIBRALTAR C-3B.
UNFILTERED SALINITY.
M AT GIBRALTAR C-38.
102
n
0.01
0.01
0. 001
0. 001
1
95 PERCENT
95 PERCENT
I
0. 0001
0.01
1
4
1
1 F111i
0. 1
I
I
1 111411
1
1
1
I
I IHit
10
FREQUENCY. CYCLES PER DRY
ii rl Hm
100
0. 0001
0.01
i1 1
1
11111
0. 1
1
1
I I
11111
1
I
I
1
4
11111
10
FREQUENCY. CYCLES PER OAT
I
I
I FH+H
100
UNFILTERED CURRENT.
127 M AT GIBRALTAR C-35.
UNFILTERED PRESSURE.
10000
127 M AT GIBRALTAR C-3B.
1000
100
0. 1
I
V)
zw
0
w
Y
10
0. 001
95 PERCENT
0. 1
0.01
95 PERCENT
0. 0001
0. 1
1
10
FREQUENCY. CTCLES PER DAY
100
0.01
1
I
I iftli
0. 1
!!w
1
1
10
FREQUENCY. CTCLES PER OAT
I
I
I ;i;;1;
100
UNFILTERED TEMPERATURE.
127 M AT GIBRALTAR C-3B
UNFILTERED SALINITY.
.
127 M AT GIBRALTAR C-3B.
I
I
0. 1 f
zU,
O
0.01 1
1
W
0.01
U
Y
zQ
>
V
0. 001 f
'IV
0.001
95 PERCENT
95 PERCENT
I
0. 0001
0.01
--,-r,T-+-i +++ 1111
0. 1
1
F
1
1
1
1111
10
FREQUENCY. CYCLES PER DAT
++u
100
0. 0001
0.01
+--; +;;;++-+-+-; +;;;;T-F H-i l ++
0. 1
1
10
FREQUENCY. CYCLES PER DAY
+
i
1
r
100
UNFILTERED SALINITY.
UNFILTERED TEMPERATURE.
172 M AT GIBRALTAR C-3B.
172 M AT GIBRALTAR C-36.
10
1f
A
0. 1
t
0.01
0.001
0. 001
95 PERCENT
2
0.0001
0.01
t
0. 0001
0. 1
1
10
FREQUENCY. CYCLES PER DAY
100
0.01
95 PERCENT
1
6
11
a1ss
0. 1
a4;i;;
a 1 a 1 ml
1
10
FREQUENCY. CYCLES PER OAT
i
a
s s;T:n
100
UNFILTERED CURRENT.
172 M AT GIBRALTAR C-36.
UNFILTERED PRESSURE.
172 M AT GIBRALTAR C-3B.
10000
1000
2
0.001
I-
0. 0001
I
95 PERCENT
0.00001
0. 01
FREQUENCY. CYCLES PER DAY
0
1
1
1 44111
0. 1
1
1
1
1 11111
1
t
i
95 PERCENT
i i i Hit
10
FREQUENCY. CYCLES PER OAT
I
I
I-T; 1111
100
204
JUN
MAY
225
150
75
20
15
10
30
25
1986
25
20
30
Velocity
0
0 -75
-150
-225
I
I
225
U Component
150
75
-75 E
-150
-225
225
150
75
0
q)
C V Component
U -75
-150
-225
18
'- Temperature
1
I
16
c
14
10
A
0
a)
I
12
90
C Pressure
110
48
120
Uncorrected Conductivity
46
E
0
f-
44
a,"
42
Corrected Salinity
I
N
k
I
hi.1
AI
C yU W w h
34
102m
at Gibraltar C-3B.
I
I
r
E
E
IOU
100
50
0
20
25
1986-
JUN
MAY
30
5
10
20
15
N<
205
25
Velocity
E -50
-100
-150
150
U Component
150
100
50
0
E -50
-100
-150
30
100
V Component
IV IP rf
I
0
I Yj'V-j. V I Y IV 1- 11 "1
18
Temperature
16
14
V
V
V
I
12
120
Pressure
Uncorrected Conductivity -146
150
0
-142
Corrected Salinity
V
34
127 m
at Gibraltar C-3B.
40
E
E
206
150
100
50
0
E
L4
L./
1986
JUN
MAY
10
30
15
-
20
25
30
Velocity
AAA LA
-50
-100
-150
U Component
150
100
50
0-
-50
150
100
50
0
E -50
-100
-150
100
150
V Component
, MAL
Temperature
16
12
10
170
172
Pressure
:2
174
U
176
178
Uncorrected Conductivity
46
44
t0
42
E
E
40
40
Corrected Salinity
38
CL
0-
36
3
172 m at Gibraltar C-3B.
207
JUN
MAY
25
30
5
10
20
15
25
30
225
150
75
0
-75
-150
-225
MAY
20
25
JUN
30
w
5
I I.IIII
10
20
15
III
.
A
r
r
I
q)
150
75
0
4)
-75 E
-150
-225
225
0
225
0
1
YI
30
150
75
1
102 M
III
25
11i
I
127 M
E-75
I
VI"Y'YYIYq
Y"V"V"Y"Y'Y
-150
-225
225
150 0
75
172 M
E
0
-75
U-Component
Gibraltar Mooring C3-B.
-150
-225
1986
208
JUN
MAY
75
50
20
25
30
25
20
15
10
5
30
V-Compon nt
a 25
102 M
0
-25
-50
-75
75
127 M
75
50
25
0
E 25
172 M
-50
-75
JUN
MAY
20
25
30
n
5
25
20
15
10
Temperature
30
18
I
102 M
14
rI
VI
12
18
0
16
127M
4)
M
0 14
Y
v
h
rr
I
Y
Y
ti M
I Tiff
18
12
172 M
l
W&A
Gibraltar Mooring C3-B.
1
U
MA
1986
I
12
209
120
150
MAY
20
JUN
25
30
5
20
15
10
25
40
38
L
A
L
30
I
102 M
,IL)
36
40
34
38
Ill
It AI h
127 M
36
Y
r
1
V
rr
34
40
r
A
172 M
VIVA
L
I
I
I
I
I
I
I
I
II
I' I
38
36
rrected Salinity
I
I
I
1
1
1
1
1
I
1
I
1
I
1
I
I
1
34
1
Gibraltar Mooring C3-B.
1986
211
Mooring C -
4
1986
1985
OCT
NOV
DEC
JAN
PERIOD I
T`---
P
@--cV
FEB
MAR
APR
MAY
JUN
JUL
PERIOD II
67 M
170 M
*
AUG
230 M
* meter not recovered
DATA RETURN FROM GIBRALTAR C-
SEP
OCT
STATISTICS
MOORING GIBRALTAR C-4.
17 OCT 85 - 9 NOV 85
MEAN
1541/48
s
67 m
u
P
36.43
23.96
8.52
15.79
69.92
C
45.16
S
36.29
v
T
HALF-HOURLY UNFILTERED DATA
35°51.68'N,
5°58.64'W
Bottom Depth: 358 m
PERIOD I
SD
26.24
34.81
12.57
0.38
1.36
0.43
0.05
MIN
MAX
LENGTH
2.50
-61.70
-26.40
14.47
67.70
111.10
105.70
1075
1075
61.10
17.36
75.30
1075
43.58
46.86
1075
36.07
36.42
1075
COMMENTS
The mooring line parted just below RCM 1541
at about 0300 9 Nov 85.
1075
1075
6881/
( not recovered )
4045/
( not recovered )
The top of this mooring was found by Moroccan fishermen and taken to Al Mediq, Morocco.
of the mooring was not recovered.
(speed, u, and v are given in cm/sec; Temperature in °C; Pressure in
and Uncorrected Salinity in ppt. The sampling rate is 30 min.)
The remainder
decibars; Conductivity in mmho/cm;
W
STATISTICS
MOORING GIBRALTAR C-4.
19 OCT 85 - 8 NOV 85
1541/48
67 m
u
v
T
P
C
S
6-HOURLY FILTERED DATA
5°58.64'W
35°51.68'N,
Bottom Depth 358 m
PERIOD I
MEAN
SD
23.33
8.76
15.79
69.84
45.15
36.29
4.25
2.24
0.23
0.68
0.25
0.02
MIN
14.61
4.30
15.32
68.53
44.61
36.23
MAX
33.29
15.68
16.16
71.22
45.57
36.33
LENGTH
80
80
80
80
80
80
COMMENTS
The mooring line parted just below RCM 1541
at about 0300 9 Nov 85.
6881/
( not recovered )
4045/
(
not recovered )
The top of this mooring was found by Moroccan fishermen and taken to Al Mediq, Morocco. The remainder
of the mooring was not recovered.
(speed,
u, and v are given in cm/sec; Temperature in °C; Pressure in
in ppt. The sampling rate is 360 min.)
and Uncorrected Salinity
decibars; Conductivity in mmho/cm;
215
67 M AT GIBRALTAR C-4.
17 OCT 85 - 9 NOV 85. TAPE 1541/48.
4. Mean
rl_
Z
Utll'fLar
U
0.00
0
10
20
30
40
50
70
60
80
90
100 110 120
Speed, cm per sec
0.25
-fl
0.15
0.10
Of
0.05
0.00
0
30
60
120 150 180 210 240 270 300 330 360
Direction, Degrees True
90
Mean
0.40 -r
0.30 t
0.20 t
0.10 t
0.00 1i
64
`
66
i1
!
68
70
72
F74
Pressure, Decibars
76
78
80
216
17 OCT 85 - 9 NOV 85. TAPE 1541/48.
67 M AT GIBRALTAR C-4.
I Mean
0.25 T
a)
0
0.10
a)
0.05 t
0.00 r-1
14.0
h
i
15.2
14.8
14.4
15.6
16.0
16.4
16.8
17.2
17.6
18.0
Temperature, Degrees C.
4, Mean
0.20 T
0.15 t
0.10 t
0.05 t
43.0
43.4
43.8
44.2
44.6
45.0 45.4
45.8
46.2
46.6 47.0
Conductivity, Mmho/cm
Mean
0.50 T
0.40 t
0.30
0.20 t
0.10
0.00
35.9
36.0
36.1
36.2
36.3
Salinity, PPT
36.4
36.5
-
36.6
217
67 M AT GIBRALTAR C-4.
17 OCT 85 - 9 NOV 85. TAPE 1541/48.
Nt
240 Km
80
160
240
320
400
-80
V component
(North)
U component
(East)
480 Km
UNFILTERED CURRENT.
67 M AT GIBRALTAR C-4.
67 M AT GIBRALTAR C-4.
UNFILTERED PRESSURE.
10000
1000
11
100
0. 1
t
1
I
N
zW
0
10
I
w
Y
I
0. 001
95 PERCENT
0. 1 !
I
95 PERCENT
0. 0 001
0.01
0.01
1
0. 01
1
11/11/11
1
11/11/11
0. 1
FREQUENCY,
1
1
11/11/11
10
CYCLES PER OAT
1
1
1
1
1 11111
0. 1
1
I
i
I
a 0111I 1+/11/11
1
10
11/11/11
100
FREQUENCY. CYCLES PER OAT
I I I (1 242*
100
UNFILTERED TEMPERATURE.
67 M AT GIBRALTAR C-4.
UNFILTERED SALINITY.
67 M AT GIBRALTAR C-4.
0.01
0.001
I
N
zW
O
0.001
W
U
0. 0001
I
Z
2
11
m
0.0001
0. DODOI
95 PERCENT
95 PERCENT
I
I
0. 00001
0.01
till
0. 1
i
+f ili
i
1
10
FREQUENCY, CYCLES PER DAY
i
i ,,,,,
100"
0. 000001
0.01
0. 1
1
10
FREQUENCY, CYCLES PER DAT
100
220
50
N
CI)
20
15
100
0
NOV
OCT
25
30
5
10
Velocity
N <-
0
E
" -50
-100
100
U Component
50 0
0E
-50 0
100
50
-100
V Component
0
0
E
O-50
-100
17
Temperature
16
15
60.0
0
0
Pressure
14
70.0
80.0
47.0
90.0
Uncorrected Conductivity
46.0
L0
45.0
37.0
.a,
36.5
Uncorrected
Salinity
a
36.0
35.5
67 m at Gibraltar C-4. 1985
44.0
E
E
w
221
Mooring C -
4B
1986
1985
OCT
DEC
NOV
JAN
FEB
MAR
APR
JUN
MAY
JUL
PERIOD II
PERIOD I
Sgt
218M
T
C aJ
S V-'q
296 M
P
C
340, M
T-f-1-f-I
AUG
V-v
V-V
VL-V
S
e
I
DATA RETURN FROM GIBRALTAR C-4B.
SEP
OCT
I
STATISTICS
MOORING GIBRALTAR C-4B. PERIOD II
29 MAY 86 - 13 OCT 86
1541/49
218 m
s
59.91
-40.70
-10.20
13.13
222.80
43 09
38.82
37.09
49.15
28.09
0.29
2.04
MIN
MAX
LENGTH
COMMENTS
456
456
456
456
456
456
456
The instruments on this mooring were subject
to extreme vibration.
This record is short
due to instrument malfunction.
0.66
151.80
81.00
102.90
13.86
232.00
44.52
38.08
93.48
-85.28
-34.41
13.06
301.05
44.48
38.19
21.16
19.77
18.40
0.04
0.95
0.07
2.72
21.30
-121.90
-121.40
13.00
298.50
44.32
37.92
138.00
-16.60
4.60
13.20
303.40
44.63
38.39
333
333
333
333
333
333
333
The data recorded by this machine were of
poor quality.
The first week has been
processed and saved. Seventeen percent of the
speeds and a lesser proportion of the other
channels were corrected with interpolation.
Data should be used with caution.
s
89.17
u
v
-86.43
-18.18
44.21
26.92
25.55
14.93
0.13
0.80
-145.20
-67.20
43.15
146.30
-0.30
23.20
44.48
6548
6548
6548
6548
Temperature offscale entire record. No
calibrations available factory calibrations used.
Speed bridged 1048 9 AUG 86 - 0348 16 AUG 86).
Conductivity bridged 2218 22 AUG 86 - 1248 27 AUG
86.
The raw direction histogram has zero frequency
over the range 0 - 696.
This is very unusual and
the direction record should be used with caution.
T
P
C
S
s
u
v
T
P
C
S
6879/2
340 m
SD
5.00
-150.60
-112.30
12.30
219.90
41.27
35.79
u
v
1968/45
296 m
MEAN
HALF-HOURLY UNFILTERED DATA
35°52.07'N,
5°57,03'W
Bottom Depth:
354 m
C
.
0 91
.
Spectra were not calculated for the top two meters on this mooring.
The instruments on this mooring were
subjected to extreme vibrations, some of the instruments had been ground to dust by the time of recovery.
(speed, u, and v are given in cm/sec; Temperature in °C; Pressure in
The sampling rate is 30 min.)
decibars; Conductivity in mmho/cm.
iv
N
W
6-HOURLY FILTERED DATA
5°57,03'W
35°52.07'N,
354 m
Bottom Depth:
STATISTICS
MOORING GIBRALTAR C-4B. PERIOD II
31 MAY 86 - 10 OCT 86
MEAN
u
v
1541/49
218 m
T
P
C
S
u
v
1968/45
296 m
T
P
C
S
u
v
6879/2
340 m
C
SD
MIN
LENGTH
COMMENTS
(See notes on half-hourly statistics page.)
223.88
43.90
37.48
28
28
28
28
28
28
-95.04
-45.05
13.04
300.73
44.42
38.11
-76.04
-27.55
13.09
301.92
44.55
38.27
18
18
18
18
18
18
(See notes on half-hourly statistics page.)
-103.30
-26.97
43.37
-47.72
-9.57
44.45
536
536
536
(See notes on half-hourly statistics page.)
-34.16
-6.89
13.04
222.44
42.83
36.66
24.13
10.35
0.17
0.90
0.67
0.49
-72.19
-27.23
12.81
221.46
42.10
36.17
-85.51
-34.39
13.05
301.36
44.49
38.20
5.25
5.29
0.02
0.40
0.05
0.06
10.60
2.91
0.12
-86.41
-18.17
44.21
MAX
-3.82
3.37
13.26
The meters on this mooring were subject to extreme
vibrations,
some of their
parts had been ground to dust
by the time of recovery.
and v are given in cm/sec; Temperature in °C; Pressure in
The sampling rate is 360 min.)
(speed,
u,
decibars; Conductivity in mmho/cm.
225
218 M AT GIBRALTAR C-4B.
29 MAY 86 - 8 JUN 86. TAPE 1541/49.
Mean
0.04 T
0.03
0.02
p
0.01
U
0.00
0
u
uu
u
10 20 30 40 50 60 70 80 90 100110120130140150160
Speed, cm per sec
0.20 T
0.15
0.10
0.05
0.00
0
30
60
120 150 180 210 240 270 300 330 360
Direction, Degrees True
90
Mean
0.60
0.50
0.40
0.30
0.20
0.10
0.00
219
223
227
Pressure, Decibors
231
235
226
218 M AT GIBRALTAR C-4B. 29 MAY 86 - 8 JUN 86. TAPE 1541/49.
Mean
0.00
12.0
12.2
12.4
12.6
12.8
13.0
13.2
13.4
13.6
14.0
13.8
Temperature, Degrees C.
Mean
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
41.0
41.4
41.8
42.2
42.6
43.0
43.4
43.8
'
44.2 44.6
'
'
45.0
Conductivity, Mmho/cm
Mean
0.14
0.12
0.10
0.08
-Ltf
0.06
0.04
0.02
0.00
35.0 35.4
35.8 36.2
36.6
37.0
37.4 37.8
Salinity, PPT
38.2 38.6 39.0
227
296 M AT GIBRALTAR C-4B. 29 MAY 86 - 5 JUN 86.
TAPE 1968/45
Mean
0.08
0.06
0.04
0.02
0.00
10
20
30 40 50 60 70 80 90 100 110 120 130 140
Speed, cm per sec
0.001 l irT1 1!
0
30
60
0
1
l
1
=
i
l
1
-
-
120 150 180 210 240 270 300 330 360
Direction, Degrees True
90
4. Mean
0.40 T
0.30 t
0.20 t
0.10 t
0.00
294
296
298
300
T-r302
304
Pressure, Decibars
306
T-
308
228
TAPE 1968/45.
296 M AT GIBRALTAR C-4B. 29 MAY 86 5 JUN 86.
.
Mean
0.50
0.40
0.30
0.20
0.10
0.00
12.9
12.8
13.0
13.1
13.5
13.4
13.3
13.2
Temperature, Degrees C.
Mean
0.30
0.25
0.20
0.15
0.10
0.05
0.00
44.1
44.2
44.3
44.4
44.6
44.5
44.7
44.8
44.9
Conductivity, Mmho/cm
Mean
0.25T
a)
0
0.10
a)
0.05 t
0.00
37.8
37.9
38.0
38.1
38.2
38.3
Salinity, PPT
38.4
38.5
38.6
229
340 M AT GIBRALTAR C-4B.
29 MAY 86 - 13 OCT 86. TAPE 6879/2.
Mean
0.05 T
0.04 t
Rn
10 20 30 40 50 60 70 80 90 100110120130140150
Speed, cm per sec
0.00
0
30
60
120 150 180 210 240 270 300 330 360
Direction, Degrees True
90
Mean
0.40 T
0.30
0.20
0.10
0.00
43.10
43.35
43.60
43.85
44.10
Conductivity, Mmho/cm
44.35
44.60
230
218 M AT GIBRALTAR C-4B. 29 MAY 86 - 8 JUN 86.
TAPE 1541/49.
Nt
-360
-300
-240
-180
60 Km
-120
60 Km
-60
-60
-120
V component
(North)
U component
(East)
231
296 M AT GIBRALTAR C-4B. 29 MAY 86 - 5 JUN 86. TAPE 1968/45.
N?
90 Km
-540
-450
-360
-270
-180
-90
90 Km
-90
-180
-- -270
V component
(North)
U component
(East)
232
340 M AT GIBRALTAR C-4B.
29 MAY 86 - 13 OCT 86. TAPE 6879/2.
Nt
-10500
-8750
-7000
-5250
T 1750 Km
-3500
1750 K
-175
-1750
i -3500
V component
(North)
U component
(East)
340 M AT GIBRALTAR C-4B.
UNFILTERED CURRENT.
10000
1000
I
I
10f
I
I
fy
II
L
f
0.01
0.01
95 PERCENT
0. 1
1
10
FREQUENCY. CYCLES PER DAY
100
234
JUN
150
100
5
5
30
Velocity
h-N<--
0
E -50
-100
-150
M
W
\M
U Component
ww
ll(I
QV \JUV VJV
50
AA
0
-50 E
-100
-150
150
V Component
100
50
0
E -50
-100
-150
210
150
100
M.
w
VV
I%-
V
T
A /\ n -- IN . f-,
VU V v -- V - v wIN
f\
PA a Q a
120
Temperature
14
11
Pressure
220
230
240
250
Uncorrected Conductivity
46
44
j
L0
42
40
40
,I0
0
39
Uncorrected Salinity
38
37
36
35
218m at Gibraltar C-4B.
1986.
E
E
235
JUN
30
150
100
m
50
N
5
Velocity
0
E -50
-100
-150
U Component
150
100
50
0
0
150
100
50
1-1
0
-50 E
-100
-150
V Component
E -50
-100
-150
Temperature
U,
L
0
0
290
295
a)
v
Pressure
300
305
310
45.0
Uncorrected Conductivity
44.8 E
44.6
0
44.4 c
44.2 E
39.0
Uncorrected Salinity
38.5
o38.0
0-
37.5
37.0
296m at Gibraltar C-4B.
1986.
44.0
236
1986
100
50
APR
N
MAY
JUN
AUG
JUL
SEP
OCT
NOV
Velocity
a)
0
E
-50
-100
100
U Component
50
0
-50
-100
100
50
a)
V Component
0
E
-50
-100
45.5
Uncorrected Conductivity
45.0
44.5
44.0
I
340 m at Gibraltar C-4B.
43.5
JUN 1986
28
150
100
50
0
29
30
31
2
1
4
3
6
5
237
7
8
9
E -50
-100
-150
150
100
50
0
ai
-,
-50 E
-100
-150
Velocity at Gibraltar Mooring C-4B
150
100
50
0
-50 0
-100
-150
U Component at Gibraltar Mooring C-4B
150
I
I
r
I
100
50
0
E
II
I
218 M 4
-50
-100
-150
150
100
296 M
50
0
4)
-50 U
E
I
1---.
i_..
V Component at Gibraltar Mooring C-4
-100
-150
238
14
JUN
28
29
30
31
1
2
3
4
5
6
7
8
9
14
11
11
Temperature at Gibraltar Mooring C-4B
210
N
220
230
-0240
290
250
295
300
U
N
305 -0
310
Pressure at Gibraltar Mooring C-4B
39
38
4.1
0 37
36
39
35
38
37
36
35
Salinity at Gibraltar Mooring C-4B
1986
aCL
239
Mooring C -
7
1985
OCT
NOV
1986
DEC
JAN
FEB
MAR
PERIOD I
MAY
JUN
JUL
AUG
OCT
SEP
PERIOD II
54 M
sR
8
APR
-V
-V
(j
T
P
C 7
193 M
sV
0
TV
P
V
CR
I
T-T r-m
I
I
DATA RETURN FROM GIBRALTAR C-7.
1-i-T-T-I
Cl
STATISTICS
MOORING GIBRALTAR C-7
19 OCT 85 - 27 MAR 86
MEAN
755/58
54 m
s
u
v
T
P
C
S
1236/45
193 m
s
u
v
T
P
C
S
HALF-HOURLY UNFILTERED DATA
35°59.98'N,
5°22.75'W
Bottom depth: 916 m
PERIOD I
SD
62.60
53.86
6.83
14.43
62.50
44.68
37.15
37.36
45.00
18.50
0.80
32.68
-19.70
-10.71
13.15
201.48
44.50
38.29
MIN
MAX
LENGTH
178.80
178.70
98.20
18.16
144.40
47.87
38.36
7616
7616
7616
7616
9.55
0.55
0.51
2.90
-87.10
-110.40
12.94
54.20
43.32
-35.61
21.42
27.88
15.70
0.13
9.85
0.13
0.11
2.10
-92.70
-62.50
12.96
194.40
44.18
37.45
111.80
55.50
41.50
14.26
280.70
44.94
38.49
7617
7617
7617
7617
7617
7617
7617
6512
COMMENTS
Pressure has been zeroed in lines
5778 - 6881 (0006 17 Feb 86 - 2236
11 Mar 86) due to an apparent failure
of the pressure sensor. The salinity
record is uncorrected.
7616
7616
Conductivity and salinity have been
bridged in lines 1019 - 1026 (2003
9 Nov 85 - 2333 9 Nov 85). The
conductivity sensor failed during this
interval.
The salinity record is corrected.
This mooring was found by the Spanish near Almeria, Spain in May 1986.
(Speed, u, and v are given in cm/sec; Temperature in °C; Pressure in
and Salinity in ppt. The sampling rate is 30 min.)
decibars; Conductivity in mmho/cm;
STATISTICS
MOORING GIBRALTAR C-7
21 OCT 85 - 26 MAR 86
MEAN
755/58
54 m
u
v
T
P
C
S
1236/45
193 m
u
v
T
P
C
S
6-HOURLY FILTERED DATA
35°59.98'N, 5°22.75'W
Bottom depth: 916 m
PERIOD I
SD
53.73
6.82
14.44
62.52
44.69
37.15
26.64
7.0
0.63
3.91
0.46
0.37
-19.80
-10.74
13.15
201.45
44.50
38.29
6.41
5.08
0.10
4.06
0.12
0.08
MIN
-28.86
-15.44
13.44
56.64
43.94
36.33
-39.42
-26.59
13.00
195.59
44.21
37.80
MAX
123.07
25.22
16.16
76.28
46.10
37.88
-4.33
5.85
13.78
215.71
44.76
38.43
LENGTH
625
625
625
525
625
625
See note on half-hourly statistics page.
The salinity record is uncorrected.
625
625
625
625
625
625
See note on half-hourly statistics page.
The salinity record is corrected.
This mooring was found by the Spanish near Almeria, Spain in May 1986.
(U, and v are given in cm/sec; Temperature in °C; Pressure in
and Salinity in ppt. The sampling rate is 360 min.)
decibars; Conductivity in mmho/cm;
243
19 OCT 85 - 27 MAR 86. TAPE 755/58.
54 M AT GIBRALTAR C-7.
Mean
0.06
0.06
0.04
0.02
0.00
75
50
25
100
175
150
125
200
Speed, cm per sec
0.25
0.20
0.15
0.10
0.05
0.00
0
30
90
60
120 150 180 210 240 270 300 330 360
Direction, Degrees True
4, Mean
0.60T
0.50
0.40
0.30
0.20
0.10
0.00
50
60
70
80
90
100
110
120
Pressure, Decibars
130
140
150
244
54 M AT GIBRALTAR C-7.
19 OCT 85 - 27 MAR 86. TAPE 755/58.
4, Mean
0.12
0.10
Z
0.08
0.06
0.04
0.02
0.00
12
13
15
14
17
16
18
19
Temperature, Degrees C.
Mean
0.30 'r
0.25
0.20
0.00
F
43.0 43.4 43.8 44.2 44.6 45.0 45.4 45.8 46.2 46.6 47.0 47.4 47.8 48.2
Conductivity, Mmho/cm
4. Mean
0.14-
FL
0.12
0.10
0.08
0.06
0.04
0.02
0.00
35.0
35.4 35.8
36.2
36.6
37.0
37.4 37.8
Salinity, PPT
38.2 38.6 39.0
245
19 OCT 85 - 27 MAR 86. TAPE 1236/45.
193 M AT GIBRALTAR C-7.
Mean
0.06
0.05
0.04
0.03
0.02
0.01
0.00
10
20
30
40
50
60
70
80
90
100 110 120
Speed, cm per sec
0.25
0.20
0.15
0.10
0.05
0.00
0
30
60
120 150 180 210 240 270 300 330 360
Direction, Degrees True
90
Mean
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
190
200
210
220
230
240
250
260
Pressure, Decibars
270
280
290
246
193 M AT GIBRALTAR C-7.
19 OCT 85 - 27 MAR 86.
TAPE 1236/45.
4, Mean
13.15
13.40
13.65
13.90
14.15
Temperature, Degrees C.
4, Mean
0.20 T
0.15 t
0.10 t
0.05 't
0.00
i
1
44.1
44.2
44.3
44.4
44.5
6
!
i
44.6
i
I
44.7
44.8
44.9
45.0
Conductivity, Mmho/cm
Mean
0.25 T
0.00
37.4 37.5 37.6 37.7 37.8 37.9 38.0 38.1 38.2 38.3 38.4 38.5
Salinity, PPT
247
54 M AT GIBRALTAR C-7.
19 OCT 85 - 27 MAR 86.
TAPE 755/58.
Nt
1300 Km
1300
2600
3900
5200
6500
-1300
V component
(North)
U component
(East)
7800 Km
248
193 M AT GIBRALTAR C-7.
19 OCT 85 - 27 MAR 86. TAPE 1236/45.
NT
h--
-3000
-2500
-2000
-1500
T 500 Km
-1000
500 Km
-500
-500
-1000
-1500
V component
(North)
U component
(East)
UNFILTERED PRESSURE.
UNFILTERED CURRENT.
54 M AT GIBRALTAR C-7.
54 M AT GIBRALTAR C-7.
1000
100
I
I
I
100 j
10
I
U v
II
1
I
ur
Y
I
I
0. 1
t
1
0.01
0. 1
95 PERCENT
1
1
1 1 1i 111
1
1
1 111111
0. 1
1
i
1i/11/11
10
11T is 1111
100
0. 01
95 PERCENT
FREQUENCY.
CYCLES PER DAY
0.001
0.01
0. 1
1
10
FREQUENCY. CYCLES PER DAY
100
UNFILTERED SALINITY.
54
M AT GIBRALTAR C-7.
54 M AT GIBRALTAR C-7.
UNFILTERED TEMPERATURE.
10 z
f
A
I
I
0.01
k4
0. 001
#
0.001
95 PERCENT
0.0001
0. 0001 a
0.01
i
+
+
+++i
0. 1
I
I
I
i I;- i ++;,;;+
1
10
i-
95 PERCENT
11
r
100
0. 00001
FREQUENCY. CYCLES PER OAT
0.01
i
i
i
l i"
Al
0. 1
f+ 1 HIM
1
1
1 111111
10
FREQUENCY. CYCLES PER DAY
1-ITrrn
100
UNFILTERED CURRENT.
193 M AT GIBRALTAR C-7.
UNFILTERED PRESSURE.
10000 f
1000
1000f
100
193 M AT GIBRALTAR C-7.
II
M
I
I
I
11
0.01
0. 1
95 PERCENT
0.01
0.01
E
I 1 + 4++M
0. 1
1
I
1
111111 -+
1
1
t+ 11111
10
FREQUENCY, CYCLES PER DAT
95 PERCENT
-i
100
FREQUENCY. CYCLES PER OPT
193 M AT GIBRALTAR C-7.
UNFILTERED TEMPERATURE.
UNFILTERED SALINITY.
193 M AT GIBRALTAR C-7.
I
0. 001 f
0. 0001 j
6
>
0. 00001 j
0001
0.00001
I
95 PERCENT
11
0.000001
0.01
0.
f
0.000001
0. 1
1
10
FREQUENCY, CYCLES PER DAY
100
0. 01
95 PERCENT
i
+
i
1
1111$-
0. 1
I
1
11/11/11
10
FREQUENCY. CYCLES PER DAY
! 1 i 111+
100
1985
150
100
NOV
OCT
253
1986
DEC
N4'
FEB
JAN
MAR
APR
MAY
Ve i o c',ty
50
0
E -50
-100
-150
150
100
50
U Component
nM
-50
-100
-150
150
100
V Component
50
11-1
0
0 -50
-100
-150
Temperature
14.0
13.0
40
Pressure
50
60
70
80
Uncorrected Conductivity
47.0
46.0
E
45.0 0
44.0 43.0 E
39.0
Uncorrected Salinity
38.0
ca 37.0
36.0
35.0
I
I
I
54 m at Gibraltar C-7.
42.0
254
1986
1985
NOV
OCT
75
50
25
N
DEC
JAN
FE5
MAR
APR
MAY
Velocity
0
E -25
-50
-75
4
75
50
U Component
-I
25
0
-25
-50
4-75
75
50
25
a)
V Component
0
-25
-50
-75
Temperature
180
Cn
U
Pressure
190
200
n)
210
220
Uncorrected Conductivity
47.0
46 . 0
E
45.0 0
44.0
43.0 E
F
39.0
Corrected Salinity
38.0
r0-37.0
36.0
35.0
193 m at Gibraltar C-7.
42.0
1985
150
NOV
OCT
198 6
DEC
255
APR
MAR
FEB
JAN
MAY
100
50
0
E -50
-100
-150
150
100
50
0
-50 E
-100
-150
Velocity at Gibraltar Mooring C-7
150
100
a 50
0
OCT
NOV
DEC
FEB
JAN
APR
MAR
MAY
54 M
E -50
-100
-150
150
100
50
193 M
-50
-100
-150
U Component at Gibraltar Mooring C-7
150
100
50
NOV
OCT
I
JAN
DEC
I
FEB
APR
MAR
uw
0
cEi
MAY
T
54 M
0
E-50
-100
-150
150
100
50
193 M
I
I
I
0
I
V Component at Gibraltar Mooring C-7
-50
-100
-150
U
U
U
E
U
256
1986
1985
NOV
OCT
MAY
APR
MAR
FEB
JAN
DEC
54 M
17
16
15
193 M
U
14 0
13
12
Temperature at Gibraltar Mooring C-7
40
NOV
OCT
DEC
MAY
APR
MAR
FEB
JAN
54 M
70
180
80
190 v,
200
2100
.,
I
I
I
220
I
I
I
I
Pressure at Gibraltar Mooring C-7
39
38
OCT
NOV
DEC
JAN
MAY
APR
MAR
FEB
Uncorrected
54 M
c 37
36
35
39
Corrected
38
193 M
37
36
I
I
Salinity at Gibraltar Mooring C-7.
I
35
aCL
257
Mooring C -
8
1986
1985
JAN
DEC
NOV
OCT
MAR
FEB
APR
JUN
MAY
JUL
AUG
SEP
OCT
PERIOD II
PERIOD I
30 M
V
V
170 M *
195M
*
* meter not recovered
II I
I
I
I
I
I
I
IT
I
I
DATA RETURN FROM GIBRALTAR C-8.
1
STATISTICS
MOORING GIBRALTAR C-8
17 OCT 85 - 26 FEB 86
PERIOD I
MEAN
6877/1
30 m
s
u
v
T
P
C
S
55.03
35.76
8.08
16.08
35.74
44.35
35.31
SD
39.52
53.69
19.05
0.86
10.90
1.28
0.57
HALF-HOURLY UNFILTERED DATA
35°53.16'N,
5°50.55'W
Bottom depth: 610 m
MIN
2.90
-223.40
-119.70
12.98
28.40
40.59
33.05
MAX
244.50
173.80
72.60
19.32
203.90
48.77
37.65
LENGTH
6332
6332
6332
6332
6332
6332
6332
COMMENTS
The maximum pressure shown in these statistics
reflects mooring blow-over that occurred Nov 14
1985, Dec 13, 14, & 15 1985, and Jan 10 & 11
1986.
6878/
170 m
not recovered
6876/
195 m
not recovered
These data are from a meter owned and prepared by the Instituto Hydrographico of Cadiz. The mooring was
cut on 26 February 1986; and RCM 6877 drifted until it was recovered. The bottom two meters were not
recovered.
(Speed,
u, and v are given in cm/sec; Temperature in °C; Pressure in
ppt.
The sampling rate is 30 min.)
and Uncorrected Salinity in
decibars; Conductivity in mmho/cm;
STATISTICS
MOORING GIBRALTAR C-8
19 OCT 85 - 25 FEB 86
PERIOD I
MEAN
6877/1
30 m
u
v
T
P
C
S
35.81
8.14
16.09
35.67
44.38
35.33
SD
9.08
5.72
0.70
4.24
1.14
0.52
6-HOURLY FILTERED DATA
5°50.55'W
35°53.16'N,
Bottom depth: 610 m
MIN
6.49
-10.69
14.87
29.94
41.39
33.41
MAX
66.46
19.61
17.64
51.59
46.40
36.07
LENGTH
COMMENTS
518
518
518
518
518
518
6878/
170 m
not recovered
6876/
195 m
not recovered
These data are from a meter owned and prepared by the Instituto Hydrographico of Cadiz. The mooring was
cut on 26 February 1986; and RCM 6877 drifted until it was recovered. The bottom two meters were not
recovered.
(U, and v are given in cm/sec; Temperature in °C; Pressure in decibars;
and Uncorrected Salinity in ppt. The sampling rate is 360 min.)
Conductivity in mmho/cm;
261
17 OCT 85 - 26 FEB 86. TAPE 6887/1.
30 M AT GIBRALTAR C-8.
Mean
0.10 T
0
25
75
100
125
150
175
200
225
250
Speed, cm per sec
0.30
c
0.25
a>
0.20
LL
0.15
0
a)
0.10
0.05
0.00
0
30
60
90
120 150 180 210 240 270 300 330 360
Direction, Degrees True
Mean
1.00
0.90
I
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
20
100
180
Pressure, Decibars
260
262
30 M AT GIBRALTAR C-8.
TAPE 6877/1.
17 OCT 85 - 26 FEB 86.
Mean
0.12
0.10
0.08
0.06
0.04
0.02
0.00
12
13
1.4.
15
20
19
18
17
16
Temperature, Degrees C.
Mean
0.10 T
-fl
40
41
42
43
44
P_
45
46
47
48
49
Conductivity, Mmho/cm
Mean
0.00
33.0 33.4 33.8 34.2 34.6 35.0 35.4 35.8 36.2 36.6 37.0 37.4 37.8 38.2
Salinity, PPT
263
30 M AT GIBRALTAR C-8.
17 OCT 85 - 26 FEB 86. TAPE 6877/1.
NT
1400 Km
700
700
1400
2100
2800
3500
-700
V component
(North)
U component
(East)
4200 Km
30 M AT GIBRALTAR C-8.
UNFILTERED CURRENT.
UNFILTERED PRESSURE.
100000
10000
30 M AT GIBRALTAR C-8.
t
100 1
1000
II
A
100
11
2
I
I
0. 1 $
95 PERCENT
0. 1
1
0.01
1
1
1
1
1
1111
I
I
I 11.1 w l
0. 1
FREQUENCY.
1
I
I xI I! I I
10
CYCLES PER OAT
I
I T. FH I
100
I
0. 01 +
0.01
95 PERCENT
1
0. 1
1
1 11 III
1
1
1 IiHW
10
FREQUENCY. CYCLES PER DAY
I-1
II
100
UNFILTERED SALINITY.
UNFILTERED TEMPERATURE.
30 M AT GIBRALTAR C-8.
1
30 M AT GIBRALTAR C-8.
11
0. 1
AI
1
1
11
0.01
V'
0. 001
11
I
lyv
f
I
I
0.001
0.0001
0.01
No
0. 0001 j
95 PERCENT
0. 1
1
10
FREQUENCY. CYCLES PER DAY
100
F
$
0.00001
0.01
95 PERCENT
0. 1
1
10
FREQUENCY. CYCLES PER DAY
100
NOV
75
50
25
0
1986
1985
266
JAN
FEB
MAR
APR
MAY
Velocity
N
U-25
-50
-75
U Component
75
50
25
0
in
1
-25 E
-50
a)
75
50
25
-75
V Component
0
E-25
-50
17.0
-75
Temperature
16.0
U
15.0 c
0
14.0
13.0
20
30
Pressure
40
50
46.0
60
Uncorrected Conductivity
45.0 E
44.0 0
43.C E
42.0 E
41.0
36.0
35.0
Uncorrected Salinity
Q 34.0
33.0
32.0
30 m at Gibraltar C-8.
267
Mooring C
-
9B
1986
1985
1
t
l
1 _I
DEC
NOV
OCT
I
1
I
JAN
FEB
MAR
APR
MAY
1Jt1111d 111I11I1I111I111I11d
JUN
X11
JUL
AUG
111 d 11111
PERIOD II
PERIOD I
58 M
c
159'
DATA RETURN FROM GIBRALTAR C--9B.
SEP
a
1
OCT
11,
,
STATISTICS
MOORING GIBRALTAR C-9B
28 MAY 86 - 13 OCT 86
v
T
P
C
S
5646/26 s
u
159 m
v
T
P
C
S
35°55.23'N, 5°29.98'W
Bottom depth: 170 m
SD
MIN
MAX
LENGTH
64.69
57.70
7.87
15.04
64.45
44.13
36.06
46.86
46.53
28.72
0.87
3.98
0.80
0.52
0.80
-181.70
-153.70
13.03
58.10
41.34
34.67
238.90
238.30
177.50
19.69
90.00
48.32
38.03
4139
4139
4139
6633
6633
6633
6633
The meter lost its rotor after 1648 22 Aug
55.74
24.80
16.52
13.51
161.65
44.15
37.79
33.24
53.48
21.53
0.79
0.30
0.29
0.65
0.80
-104.80
-88.90
12.83
160.00
42.95
35.27
191.30
191.10
141.00
16.72
163.70
46.42
38.55
6633
6633
6633
6633
6633
6633
6633
The following areas in the speed record were
bridged: 1720 6 Jul
1720 7 Jul; 1950 11 Jul 1020 12 Jul; 1120 13 Jul - 1620 13 Jul; 1720 18
Jul - 2320 18 Jul; 1220 28 Jul - 1820 28 Jul;
0350 7 Aug -1050 8 Aug; 0620 18 Aug
0759 19 Aug.
Conductivity was bridged: 2020 11 Jul - 0920 12
Jul; 1420 26 Jul - 0550 2 Aug; & 1950 8 Aug - 0920
MEAN
5647/28 s
58 m
u
HALF-HOURLY UNFILTERED DATA
PERIOD II
COMMENTS
86.
The pressure sensor appears to have
drifted about 10 decibars.
record is uncorrected.
The salinity
-
-
9 Aug.
The salinity record is corrected.
(speed, u, and v are given in cm/sec; Temperature in °C; Pressure in
and Salinity in ppt. The sampling rate is 30 min.)
N
decibars;
Conductivity in mmho/cm;
Lo
STATISTICS
MOORING GIBRALTAR C-9B
29 MAY 86 - 12 OCT 86
MEAN
5647/28
58 m
u
v
T
P
C
S
5646/26
159 m
u
v
T
P
C
S
(speed,
PERIOD II
SD
6-HOURLY FILTERED DATA
35°55.23'N,
5°29.98'W
Bottom depth: 170 m
MIN
MAX
LENGHT
COMMENTS
57.39
7.83
15.04
64.41
44.14
36.06
11.42
8.45
0.37
2.99
0.51
0.34
25.22
-13.71
14.19
59.84
42.89
35.26
76.58
25.59
15.83
72.50
45.05
36.65
335
335
543
543
543
543
See note on half-hourly file.
The salinity record is uncorrected.
24.60
16.51
13.50
161.66
44.15
37.79
12.14
4.71
0.24
0.27
0.15
0.21
-16.07
4.38
12.89
161.46
43.77
37.14
54.75
28.20
14.19
162.31
44.50
38.35
543
543
543
543
543
543
See note on half-hourly file
The salinity record is corrected.
u, and v are given in cm/sec; Temperature in °C; Pressure in
The sampling rate is 360 min.)
ppt.
and Salinity in
decibars; Conductivity in mmho/cm;
271
58 M AT GIBRALTAR C-9B.
28 MAY 86 - 13 OCT 86.
Mean
0.08
0.06
0.04
0.02
0.00
0
25
50
75
100
125
175
150
200
225
250
Speed, cm per sec
0.20
0.15
0.10
0.05
0.00
0
30
60
120 150 180 210 240 270 300 330 360
Direction, Degrees True
90
J, Mean
0.30
0.05
0.00
55
59
63
67
71
75
79
83
Pressure, Decibars
87
91
95
272
58 M AT GIBRALTAR C-9B. 28 MAY 86 - 13 OCT 86.
Mean
-L
0.00
13
14
19
16
17
16
15
20
Temperature, Degrees C.
Mean
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
41
42
43
44
45
46
47
48
49
Conductivity, Mmho/cm
4. Mean
0.20
0.15
0.10
0.05
0.00
34.0 34.4 34.8 35.2 35.6 36.0 36.4 36.8 37.2 37.6 38.0 38.4 38A 39.2
Salinity, PPT
273
159 M AT GIBRALTAR C-9B. 28 MAY 86 - 13 OCT 86. TAPE 5646/26.
4, Mean
0.08
0.06
0.04
0.02
0.00
75
50
25
0
100
125
150
175
200
Speed, cm per sec
0.25 T
0.20 t
0.15 t
0.10 t
Ji
0.05 t
0.00
'
0
30
60
I
rr F'ITTTT-'TTY
I
120 150 180 210 240 270 300 330 360
Direction, Degrees True
90
4. Mean
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
-1
0.00
155
157
159
161
163
Pressure, Decibars
165
167
169
274
159 M AT GIBRALTAR C-9B.
28 MAY 86 - 13 OCT 86. TAPE 5646/26.
I Mean
0.50
0.40
0.30
0.20
0.10
n 00
12.0 12.4 12.8 13.2 13.6 14.0 14.4 14.8 15.2 15.6 16.0 16.4 16.8 17.2
Temperature, Degrees C.
Mean
0.50 T
0.40
0.30 t
0.20 t
0.10 t
0.00
I
42.0 42.4 42.8 43.2 43.6 44.0 44.4 44.8 45.2 45.6 46.0 46.4 46.8 47.2
Conductivity, Mmho/cm
Mean
0.50
0.40
0.30
0.20
0.10
0 00
35.0
35.4 35.8
36.2
36.6
37.0
37.4 37.8
Salinity, PPT
38.2 38.6
39.0
275
58 M AT GIBRALTAR C-9B.
28 MAY 86 - 22 AUG 86.
TAPE 5647/28.
NT
T 800 Km
800
1600
-800
V component
(North)
2400
3200
4000
4800 Km
276
159 M AT GIBRALTAR C-9B.
28 MAY 86 - 13 OCT 86. TAPE 5646/26.
NT
T 2100 Km
{
-700
700
1400
-700
V component
(North)
2100
2800
3500 Km
UNFILTERED CURRENT.
58 M AT GIBRALTAR C-9B.
UNFILTERED PRESSURE.
58 M AT GIBRALTAR C-9B.
10000
1000
10
100
v,
zw
G
Y
I
1
W
U
z
0. 1
>
0.01
95 PERCENT
I
0. 1
}---I
0.01
I
111111;
0. 1
I
I 11/11/11
1
I
I II1111
10
FREQUENCY. CYCLES PER DAY
I
I
IIt,n
100
0. 001
,
0.01
;
;
II;. I F.
0. 1
i
r f
;i i
il
1
;
! I
95 PERCENT
lf;ia!
10
FREQUENCY. CYCLES PER DAY
r
;
!
t ;;n,
100
UNFILTERED TEMPERATURE.
58 M AT GIBRALTAR C-9B.
UNFILTERED SALINITY.
58 M AT GIBRALTAR C-98.
10
I
I
1
0. 1
1
i I
I
I
1
0.01
VI
0. 001 1
0. 0001
95 PERCENT
0.0001 ;
0. 01
ii if 11111
0. 1
1
11/11/11
1
+
111HIH
10
FREQUENCY. CYCLES PER DAY
i
ii 111111
100
95 PERCENT
0.00001
0.01
h
i
l11iii1
0. 1
i
i
1111111
1
i
1+H III
10
FREQUENCY. CYCLES PER DRY
4
100
UNFILTERED CURRENT.
159 M AT GIBRALTAR C-98.
UNFILTERED PRESSURE.
159 M AT GIBRALTAR C-98.
10000
I
1000
100
0. 1 1
z
t
I
N
z
w
0.01
I
11
I
W
I
p Wr
I
z
0.
001 f
v
hA
0. 0001
95 PERCENT
0.1
0.01
1
0.00001 LI i
0. 1
1
10
FREQUENCY. CYCLES PER DAY
100
0. 01
95 PERCENT
x$1111
0. 1
+
I
II$1111
1
tI1111$
10
FREQUENCY. CYCLES PER DRY
100
UNFILTERED TEMPERATURE.
159 M AT GIBRALTAR C-9B.
10
UNFILTERED SALINITY.
159 M AT GIBRALTAR C-9B.
10
1t
1
0. 1 t
I
I
I
0. 01 t
0.01
I
f
p
IV
0.001
0.001
1
VI
I
95 PERCENT
0.0001
0.01
1
1
1
t{'i111
0. 1
1
1
1:f
1
1
f fills
10
FREQUENCY. CYCLES PER DRY
Iii;;ii
100
95 PERCENT
0.0001
0.01
-
1
r I
i I...
0. 1
1
1 111111
1
1 1 i i1+Mi
10
FREQUENCY.* CYCLES PER DRY
1}111
100
1986
75
50
25
APR
N
MAY
JUN
JUL
AUG
281
SEP
NOV
OCT
Velocity
0
E -25
-50,
-75
U Component
75
50
25
0
-25 0
-50
-75
75
0
50
25
0
V Component
cEi -25
-50
-75
17.0
Temperature
16.0
15.0
14.0
50
55
60
65
U
0
13.0
Pressure
70
75
47.0
80
Uncorrected Conductivity
46.0E
45.0
0
44.0
43.0 E'
39.0
42.0
38.0
Uncorrected Salinity
x37.0
36.0
I
35.0
58 m at Gibraltar C-9B.
1986
282
75
50
25
0
-25
-50
-75
APR
N--
MAY
JUN
JUL
AUG
OCT
SEP
NOV
Velocity
"IM SIM,
U Component
75
50
25
V Component
0
-25
-50
-75
Temperature
160
Pressure
161
162
163
164
Uncorrected Conductivity
39.0
Corrected Salinity
38.0
x37.0
36.0
35.0
159 m at Gibraltar C-9B.
1986
100
APR
MAY
JUN
JUL
AUG
283
SEP
OCT
NOV
50
a'
a)
0
E
"-50
100
-100
50
a'
0
E
-50
0
-100
Velocity at Gibraltar Mooring C-9B
100
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
50
a'
a,
E
0
-50
100
-100
50 0
IV
0co
E
-50 "
-100
U Component at Gibraltar Mooring C-9B
100
C.)
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
50
a'
0
E
0-50
-100
100
50 ,
0
-50
-100
V Component at Gibraltar Mooring C- 9B
E
v
1986
284
17
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
16
15
14
13
17
12
16 v
15 rn
14
13
12
Temperature at Gibraltar Mooring C-9B
50
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
0 60
U
0 70
160
80
U)
161 0
162
0
163
164
Pressure at Gibraltar Mooring C-9B
39
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
38
37
36
39
35
38
41
37
36
35
Salinity at Mooring C-9B
0