32
Technical Report Series
Number 76-4
32
ONSLOW BAY INTRUSION STUDY
HYDROGRAPHIC OBSERVATIONS DURING
CURRENT METER SERVICING CRUISES
IN AUGUST, OCTOBER, AND DECEMBER 1975
OBIS I, Ill AND IV
by
L. P. Atkinson
J. J. Singer
L. J. Pietrafesa
31
31
Georgia Marine Science Center
University System of Georgia
Skidaway Island, Georgia
81
CNSIDV BAY INl'RUSIOO STUDY
HYDRCGRAPHIC OBSERVATIOOS DURING CURRENr
MEI'ER SERVIcnK; CRUISES Th1
AUGUST I <::erOBER, AND DEX»o1BER 1975
OBIS I, III AND IV
by
L. P. Atkinson
J. J. Singer
L. J. Pietrafesa
Skidaway Institute of Oceanography
P.
o.
Box 13687
Savannah, Georgia
31406
June 1976
The Teclmical Report Series of the Georgia Marine Science Center is issued
by the Georgia Sea Grant Program and the Marine Extension service of the
University of Georgia on Skidaway Island (P.O. Box 13687, Savannah, Georgia
31406). It was established to provide dissanination of technical infonnation
and progress reports resulting fran marine studies and investigations mainly
by staff and faculty of the University System of Georgia. In addition, it is
intended for the presentation of techniques and methods, reduced data and
general infonnation of interest to industry, local, regional and state governments and the public. Infonnation contained in these reports is in the public
danain. If this prepublication ccpy is cited, it should be cited as an unpublished manuscript.
l.rms study was sponsored by the U. S. Energy Research and Developroont Administration.
ACKNOWLEDGMENTS
The authors would like to thank all those who have participated in
this project to date.
These include the captains and crews of the R/V
ADVANCE II (OBIS I, III, IV) and the R/V EASTWARD (OBIS II).
Also, much
credit is given to the scientists, technicians and graduate and undergraduate students withoutwhose assistance, both at sea and in the
laboratory, the existing data could not have been collected or analyzed .
The list includes:
Larry Atkinson (OBIS, I II)
John Bane (OBIS IV)
Helen Beaty (OBIS II)
Robert Bernatzki (OBIS II, III, IV)
Paul Blankinship (OBIS I, II)
Kathy Bliven (OBIS III)
Larry Bliven (OBIS III)
Dave Brooks (OBIS III)
Bill Dunstan (OBIS II)
Betti Giles (OBIS I, II)
Eileen Hoffman (OBIS I, II)
Louise Jaffe (OBIS I, II)
Ernie Knowles (OBIS II)
Dave Leach (OBIS I, II, III, IV)
Renie Lee (OBIS III)
Greg Mcintire (OBIS II)
Lisa Morehouse (OBIS II, III, IV)
Gus Paffenhofer (OBIS II)
Len Pietrafesa (OBIS I, II)
Carol Porter {OBIS II)
Jim Singer (OBIS II, III, IV)
Dennis Waslenchuk (OBIS III, IV)
i ii
TABLE OF CONTE NTS
Page
....
Ac knowledgments
List of Tables
List of Figures
Introduction
....
Methods
..... .....
....
....
....
.....
.....
Results and Conclusions .
OBIS I :
6-7 August 1975 .
OBIS III :
13-14 October 1975
OBIS IV :
8-11 December 1975
iii
v
vi
1
4
6
....
.....
7
15
19
...
List of References
.
32
Appendices .
33
Appendix I.
Station Locations and Data (OBIS I)
Appendix II.
Station Locations and Data (OBIS IV)
iv
..
.
..
34
46
LIST OF TABLES
Page
1.
Changes in bottom temperature at repeated stations
v
. . . . . . . 25
LIST OF FIGURES
Page
Figure 1.
Location of the st udy area
2
Figure 2.
Current meter moorings in Onslow Bay
3
Figure 3.
Cruise track (OBIS I : 6-7 August 1975) .
9
Figure 4.
Vertical distribution of temperature
(XBT Grid, 6-7 August 1975) . . . . . .
. . • • • •
10
Vertical distribution of salinity and sigma-t
(Hydro Grid, 6-7 August 1975) . . . . . . . . • • . . . .
11
Vertical distribution of nitrate, phosphate and silicate
(Hydro Grid, 6-7 August 1975) . . . . . .
. . . . .
12
Vertical distribution of dissolved oxygen
(Hydro Grid, 6-7 August 1975)
13
Figure 8.
T-S Plot (OBIS I:
14
Figure 9.
Cruise track (OBIS III:
Figure 10.
Vertical distribution of temperature
{XBT Grid, 13-14 October 1975)
18
Figure 11.
Cruise track (OBIS IV:
22
Figure 12.
Surface temperature (8-11 December 1975)
23
Figure 13.
Bottom temperature (8-11 December 1975) .
24
Figure 5.
Figure 6.
Figure 7.
6-7 August 1975) . . .
13-14 October 1975)
8-11 December 1975)
Figure 14 . Vertical distribution of temperature
(XBT and Hydro Grid, 8-10 December 1975)
Figure 15.
17
. . . . . . . .
26
. . . . . .
27
Vertical distri buti on of temperature
(XBT and Hydro Grid, 10-11 December 1975)
Figure 16.
Vertical distribution of sigma-t and salinity
(Hydro Tracks, 9-11 December 1975) . . . . . . . . . . . 28
Figure 17.
Vertical distribution of nitrate and phosphate
(Hydro Tracks, 9-11 December 1975) . . . . .
. . . . . 29
Figure 18.
Vertical distribution of silicate and oxygen
(Hydro Tracks, 9-11 December 1975)
Figure 19 . T-S Plot (OBIS IV:
8-11 December 1975) . . . .
vi
30
31
INTRODUCTION
This data report presents a preliminary analysis of chemical/physical
data obtained during three current meter servicing cruises in Onslow Bay in
August, October and December 1975 (OBIS, I, III, IV) aboard the R/V ADVANCE
II.
These cruises were made in cooperation with Dr. Len Pietrafesa (N.C.
State University) as part of an ERDA sponsored study investigating the shelf
processes effecting the distribution of nutrients in the South Atlantic
Bight (Figure 1).
The objective of these cruises was to collect temperature and chemical
data to correlate with the data recorded by current meters and thermographs
which had already been deployed or which were about to be deployed at two
locations in. the study area (Figure 2).
No attempt will be made at this time
however to correlate our data to these related records.
An earlier data report, Hydrography of Onslow Bay, North Carolina:
September 1975 (OBIS ll), discusses chemical/physical observations made over
a longer and more intensive sampling period.
The related current meter and
thermograph data for the present cruise and the one earlier cruise (OBIS II)
are presented in:
Preliminary Data Report, Physical/Dynamical Observations
made .i!l Onslow~; Summer, Fall and Winter 1975 by L.J. Pietrafesa et
~-,
N.C.S.U.
The three cruises under consideration include the following:
OBIS I
6-7 August 1975 - This was the first ERDA related cruise into the study
area.
At this time two moorings were established for current meters and
thermographs along the 28m isobath (Figure 2).
General Oceanics thermographs were deployed.
ENDECO current meters and
Expendable Bathythermograph
(XBT) traces and hydro casts were made along two onshore/offshore transects
passing near these mooring sites.
1
84
80
36
..
I
.
I
'
...
·
I
32
32
ATLANTIC
OCEAN
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KM
28
28
84
Figure 1.
Location of the study area
2
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7 7.
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Figure 2.
I
7 7 • 3.0'
....
.
7 7.
Current meter moorings in Onslow Bay
1s
• 3 o'
76
OBIS III
13-14 October 1975 - ENDECO current meters and General Oceanics thermographs were deployed.
XBT traces and surface bucket temperatures were col-
lected along two onshore/offshore transects passing near the mooring sites
along a base grid which had been established following OBIS I.
OBIS IV
8-11 December 1975 - Current meters and thermographs from the October
cruise (OBIS III) were removed and Geodyne current meters and General Oceanics
thermographs were deployed at one of the mooring sites.
At this time the
temperature structure of the entire Bay was canvassed with XBTs, and hydro
casts were made along two onshore/offshore transects.
METHODS
Typically when hydro casts were made they followed XBTs.
Niskin sampl-
ing depths were determined by analysis of the temperature profile .
If a
thermocline was present, samples were taken at the surface, just above or
below the thermocline and at the bottom.
surface and bottom samples were taken.
If no thermocline was present just
Water samples were taken for the
analysis of salinity, temperature, nitrate, phosphate, silicate and oxygen.
Salinity was determined conductometrically, using a Plessey portable
laboratory salinometer.
method.
Dissolved oxygen was analyzed at sea by the Winkler
The apparent oxygen utilization {AOU) was computed using the Inter-
national Oceanographic Tables (1973).
Temperature was determined by deep sea reversing thermometers and expendable bathythermographs (XBTs).
The XBT traces are on file at Skidaway and
an effort is being made to digitize this information.
After collection, the nutrient samples were immediately frozen in polyethylene bottles and stored in the dark until thawed and analyzed ashore.
4
Colorimetric determinations of nutrient concentrations were made with a
Baush and Lomb Spectronic 88 Spectrophotometer with a sample sipper.
Sili-
cate concentration was determined by the method of Mullin and Riley (1955)
as modified by Strickland and Parsons (1965), and phosphate concentrations
were determined by the method of Murphy and Riley (1962).
Nitrate was
determined by a modification of the cadmium column reduction technique
(Gardner, personal communication). 1
The hydrographic data (T, S, nutrients, oxygen) are submitted to NODC
and are stored there and in our computer system.
in the Appendix.
1Skidaway
The data printouts are
The data are available from NODC.
Institute of Oceanography, Savannah, Georgia 31406 .
5
RESULTS AND CONCLUSIONS
6
OBIS I
6-7 August 1975
(Julian Date 21 8-219)
7
In August 1975 fourteen stations were sampled along the cruise track
shown in Figure 3.
Of these, nine stations were sampled for salinity,
dissolved oxygen, nitrate, phosphate and silicate (see Appendix I).
XBT
traces were made at all of the indicated stations and the subsequent vertical
distribution of temperature (Figure 4) suggests that an intrusion had moved
into the area.
Particularly note the 23.5°C core defined by the isotherms
for stations 10 thru 15.
A similar trend is seen in the data for stations 1
thru 6 although the entire core is not observed.
Unfortunately, hydro casts were not made along the entire length of the
track encompassing stations 10 thru 15.
However, near bottom salinity and
sigma-t trends in the vicinity of stations 5 and 6 (Figure 5) also support the
conclusion that slope waters had intruded into the area.
This is further sup-
ported by the higher nutrient concentrations for the same bottom waters shown
in Figure 6 and the T-S Plot in Figure 8.
Somewhat contradictory to these trends, however, is the high oxygen concentration near bottom at station 5 (Figure 7).
consistency is not clear.
8
The explanation for this in-
7 8.
7 6
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7 8.
Figure 3.
7 7. 3.0 '
Cruise track (OBIS I:
7 7•
6-7 August 1975)
16 • 3
o'
76
Temperature
•c
X BT Grid
6 -71 "lZIII1 7:S
l
Sta tio ns
'~
20
30
E
1
2
3
4
5
6
40
..
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Q.
Q
Fi gure 4.
Vertical distribution of temperature
(XBT Grid, 6-7 August 1975)
10
Stations
0
10
zo
e
30
40
.r:
..
10
0.
0
0
30
40
Stations
0
10
..
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•J.,.
Hydro Grid
6-7 / :llllr/75
4
~
6
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H
23.4
20
30
40
..r:
Ci.
Salinity
~
zo
0
12
35.25
35.50
10
!
II
10
II
12
0
Si9mo · I
Hydro Gt~d
10
20
6-7/~/75
30
40
Figure 5.
Vertical distribution of salinity and sigma-t
(Hydro Grid~ 6-7 August 1975)
11
Stohons
1
5
4
6
10
20
30
40
~
!Jl4J
Stations
.s::
j
Stations
I~
30
20
10
11
12
~
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05
Hydro Grid
6 - 71 1ZI!II75
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2
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5
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~ I~ j
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:::::::::
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12
Phosphate umole I L
Hydl'<) Grid
'
6-7 1 '2m l75
40
Stations
I
2
3
II
12
4
5
6
~~ j
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40
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20
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Figure 6.
> 0.5
I
05
<O. ~
~
Silicate ,u..mole I L
Hydro Groc!
6-7/~ / 75
Vertical distribution of nitrate, phosphate and silicate
(Hydro Grid, 6-7 August 1975)
12
Stotion1
I
2
3
4
6
0~----~------~--~~~----~~r-~~------~
10
20
e
=..
a.
0
30
40
.~
20
30
l
I
10
II
1111/fl
12
Di ssolved OayQen
ml / L
Hydro Gnd
6•7/~ / 75
40
Figure 7.
Vertical distribution of dissolved oxygen
(Hydro Grid. 6-7 _August 1975)
13
Salinity 0 /oo
31
32
34
35
36
+---------+---------+---------+---------+---------·---------·---------++
+
++ + +
+ +
+
+++
+
+
+
+
+
+
AD-1-75
6-7 August 1975
2'5
+
(._)
0
+
+
+
20
+
+
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+
+
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+
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s....
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s....
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E
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-.
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+---------+---------+---------+---------+---------+---------+---------++
Figure 8.
T-S Plot (OBIS 1:
14
6-7 August 1975)
OBIS II I
13-14 October 1975
(Julian Date 286-287)
15
In October 1975, twenty stations were sampled along the track shown in
Figure 9.
XBT traces were made at fifteen stations and surface bucket tempera-
tures were taken at five others.
No hydro casts were made.
The vertical
temperature structure (Figure 10) reveals generally well mixed waters throughout the inner half of the Bay and the transect for stations 52-57 also suggests cascading or overriding of the denser shelf waters with Gulf Stream
water.
There is no evidence of an intrusion similar to that observed in
August (OBIS I) or September (OBIS II) 1975.
16
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7 6
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7 7. 3.<:('
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Cruise track (OBIS III:
7 7•
16 • 3
13-14 October 1975)
o'
76
Temperature
xer Gr~d
1:5-14/X/ 7:;
Star"'"" 22 -
23
24
25
-
26
:J1 t. . . L,. .,f. . ,. .,.:,,,,,,~
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e
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40
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Figure 10.
Vertical distribution of temperature
(XBT Grid, 13-14 October 1975)
18
OBIS IV
8-11 December 1975
(Julian Date 342-345)
19
In December 1975, fifty-nine stations were sampled along the cruise track
shown in Figure 11.
Of these, twelve stations along two onshore/offshore tran-
sects were sampled for salinity, dissolved oxygen, nitrate, phosphate and silicate (see Appendix II).
XBT traces were made at all fifty-nine stations, and
a rather complete view of both the horizontal and vertical temperature structure throughout the Bay was obtained.
One onshore/offshore transect was
repeated due to the availability of additional cruise time because of instrument recovery problems at the southwest mooring.
This permitted hydro casts
along a series of stations (42-47) which earlier had been surveyed by XBTs only.
The horizontal surface and bottom temperature plots of Figures 12 and 13
reveal temperatures ranging from 24°C near the shelf break to 16oc near shore.
They reveal strong horizontal temperature gradients to the northeast and in
the central offshore portions of the Bay and weaker gradients throughout the
remainder of the Bay.
sampled twice.
It was along this central portion of the Bay that we
These repeated samplings came approximately 20 hours apart
and they are presented here in Table 1.
Note that the greatest temperature
changes occurred at those stations in or closest to the region of the strongest
horizontal temperature gradient.
Figures 14 and 15 reveal the vertical temperature structure throughout
the Bay. At stations 6 thru 8 and 10 thru 17, a mid-depth temperature maximum was observed.
Since no hydro casts were made along these tracks, however,
it is difficult to ascertain the origin.
Throughout the remainder of the Bay
the profiles reveal mixed waters nearshore and the apparent movement of a
warm front onto the shelf.
This can be seen to center around stations 40
thru 47 and gives the appearance of cascading by the mid-shelf waters as the
front moves shoreward.
Refering back to Figures 12 and 13 one can see the
shoreward protrusion in both of the surface and bottom plots of temperature.
The sigma-t Plot (Figure 16) shows some tilting of isopycnals as the
20
front moves shoreward.
The salinity plot reveals that salinities of 36.1 to
36.2 generally dominated along the hydro tracks, and the T-S Plot (Figure 19)
is typical of slope waters in this area.
These observations all tend to sup-
port the view that a Gulf Stream front was moving into the area.
The nutrient
and dissolved oxygen plots (Figures 17 and 18) are all rather inconclusive
though one might expect lower nutrient concentrations to be characteristic
of fronts moving into the Bay on the surface as opposed to at depth.
21
7 8.
7 6
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Figure 11 .
7 7. 3-0'
...
7 7•
Cruise track (OBIS IV : 8-11 December 1975)
16 • 3
o'
76
78.
7 6
(':
34· 3 0 ' - -
.
N
VJ
1
3 4 •
_ .~;:
u···
3 4.
.~
..
·....
!';-.
•
fEAR
•
:~
. ,
·'
·. ; ~(-~
33"30'---
,~
2~
,o<>
.,o,..
..
..
.. ·,;·~;:;,-.··:· :·.~
(-
.
Surface Temperature
• :
·::····
....·
.·
.·
· S-11/XII/75
/ SCALE
IN
o
C
-
-
3 3• 30'
KILO ioiET E R$
0
50
...
7 8.
Figure 12.
1 1 • 3.0' .·
77•
Surface temperature (8-11 December 1975)
76 • 3
o'
76
1
a·
7 6
_)
.: •·.;'
·::
:'
.: ,...:.•
··. ~
34.30'--
··-;..;
•
N
~
3 4 •
C ~ P E.···: L 0 0 K 0 U T
:;~:~..
·:.. \
)~
.
::'.": .: ::~::
.·
·'···
.::
.
FEAR
'···.....
":)
:;:_~..
~·~
'
! ·;
'
~~·</::·
.;~t- ::.
·..:·-'.'
33• 30'---
.· .·
,oo
.:.
.,o
.... .·; .. .. ·•..
.l
3 4•
-~
•
•
....
...
•
·' ,..
·..:
34 •3o'
·
... .·
.'
Bottom Temperature
.. -·;;-;.~·.~::·: :·: ,.
o
8-11/XII/75
·::··,;
.·
/ SCALE
Ill
C
- - 3 3. 30'
KILO .. £TERS
.·
.-·
0
$0
.. ··:.··
_
7 8.
Figure 13.
7 7 • 3.0'
_....
77•
Bottom temperature (8-11 December 1975)
1 s • 3 o'
76
TABLE 1
Changes in bottom temperature at repeated stations.
STATION
47
TIME (GMT)
Dec.10
TEMP
TEMP
CHANGE
0129
23.4
-0 . 2
TIME (GMT)
Dec . ll
0539
23.6
46
0605
24 . 6
0200
24. 0
- 0.6
45
0650
23 . 3
0300
21.8
-1.5
44
0722
20.5
0339
21.1
+0.6
43
0801
19. 3
0440
19. 6
+0 . 3
42
0830
19. 3
0511
19. 2
-0.1
25
Tem~rature
•c
X8 T 8 Hydro Gr•d
8-10/XII/75
6
~
.c
Q.
•
Q
0
10
20
-
7
8
24 0
230
22.0
210
30
40
Slohons
10
0
10
~ 20
.f!
Q. .30
Q
40
50
-- ;;;c.
II
0
12
1.3
14
15
11.0
..
e
"'Q.
0
0
10
"~
~
16
17
-
21
22
23
24
25
26
-
Z7
-
.31
32
33
34
35
36
-
37
43
44
45
46
-
47
zo
.30
40
50
0
10
~ 20
.f!
Q. 30
Q
40
..
50
e
..
.f!
Q.
0
0
10
20
.30
40
50
Figure 14.
Vertical distribution of temperature
(XBT and Hydro Grid, 8-10 December 1975)
26
Temperalyre "C
XST 6 Hv<lro Grod
10 - II I.X!I/7!!
44
46
~2 ~3
Or-----~~~~~~~~------~----~~~--~----~~
e
10
20
"' 30
:-40
a
!!0
60
!10---..
e
""..
10
!!I
<11- ~
zo
30
.; 40
so
63
6!!
-
l~l
!
zo
..
""
30
a
40
..
64
!!0
Figure 15.
Vertical distribution of temperature
(XBT and Hydro Grid~ 10-11 December 1975)
27
66
Sigmo t
Hydro TrCc:k\
9-11/lll:/7~
Slolioft\
31
30
32
34
33
37
36
42
43
44
4~
46
47
48
0 ~----~~~~~~~--~------~------~----~--~--~~
10
.§ 20
~
Q
30
\
l i.e
\..
lS.\
'-.....
~~
t4.e
25.4~~
IIIJiiiJ/f/1111/liil/~
:
I
/
< 14. 1
24.1
24.1
I
(
,,,,,,;;,~
60
Solinoly '>'••
Hydro Track\
9 - lltmt7s
31
Slohono 30
32
34
33
0
10
!
35
36
37
36.1
<36.1
(;.31.1
.I \
20
4:
'6. 30
>311
31.1
~ 40
50
42
44
43
4S
46
47
<31.15
""2-30
Q
40
~
60
Figure 16.
Vertical distribution of sigma-t and salinity
(Hydro Tracks, 9-11 December 1.975)
28
48
Nitrate I'I"Qie/L
~ y dro
Tra,ks
9-11/.JJI/7!1
31
S!OI!O"' 30
"'E
sa.
0
~~
:10
34
35
37
36
I
'-----1....
I
~
20
:50
40
32
'
:
I
<o.r
,,,,;;
1
:
tU ruu ll}(/)j}}f}/)fj}}))))}))
42
43
0.1
-
' ' ' """'"")}fi)})JI}I)))),~
44
46
47
48
0
10
(0. 1
.§ 20
.
~
a.
30
Q
40
0.1
50
60
Phosphat • ""'ala I L
Hydro Tracks
9-11/Xli / 75
Srat•ons
!
30
31
32
33
34
35
36
37
I~ 1 ::::. ,,,,,:,,nm;~;,:,,, ,: -.<."
20
... 30
~
Q
l f f Jt /) })/}}))}}) I })
40
I tt I''"' hll'f7'?-
50
42
43
44
45
46
47
0
10
.!
a.
~
•
Q
20
30
40
50
60
Figure 17.
Vertical distribution of nitrate and phosphate
(Hydro Tracks, 9-11 December 1975)
29
48
S1licore wnole / L
Hydro Trocks
9· 11 / XII/
7~
Stohons 30
0
10
~
l .O '
-
32
34
1.5~
37
36
35
'-20_./
/
r.s_/
~ ----:• 0 -:r.:<•.o
)}}}})}flfiiiiiiiii/J}})))I/)}}j)}
---- 1. '
..,~'""'''"'""'""'-.......
mrmmmrmmmmmmmmrm-m'm'!rmrm'7'T.mm;;;~,:_---~
' ' ' ' ' 0111""'»»nnn;;J;;, ;;;;
>1.0
20
t
31
30
.; 40
ltffl))}/ftTr-
50
42
0
10
e 20
.
~ :50
Q
43
44
45
t.ll
~
"""'~'"JZ"'I'~'"'""''"'''"'"IT.;;;;n;:;,;:,,;;;;;:;;;;;»;;,,;:;;:;;;;,...~-
40
47
46
hQ I II}) ;;;;;
1. 5
48
~
,,,,;;;;; nn:;;~
50
60
0•Y9tn mt I L
Hydro Trocks
9·11/.Ill/75
) ...~~"t:::h
;0
40
>0
~0
1
':z
~~'"'"'
~4
3:3
~\
° f l l ll {l t11Jihtf}}}h}))})}j)
3!l:
If , I (I })/ I
~7
3:6
IIIII)} ; , } , , ,
})}~
42
43
44
46
4~
47
48
or-----~------~------~--------~------~------~------~
10
.!20
t30
e.oo
1/JJI/{})W}))/Jiil/::::nlJii;)}
!I / 40
Figure 18.
4 .15
,,,,,,,..,..,..__,
J
. . ,,, ~~)T,})~)~~~h~~~~~--­
''''' ""'/)1~
Vertical distribution of silicate and oxygen
{Hydro Tracks, 9-11 December 1975}
30
Salinity o/oo
31
32
3:3
34
35
36
+---------·---------·---------+---------+---------·---------·---------++
+
+
AD-3-75
8-11 December 1975
25
++
++
++
+
++
+
+
+
+
++
++
. ++
+
+
20
u
0
+
+
+
+
Q)
~
::::1
~
tO
~
Q)
1~
+
+
+
10
+
+
+
c..
E
..._
Q)
+
+
+
·---------+---------+---------·---------·---------+---------+---------··
Figure 19.
T-S Plot (OBIS IV:
31
8-11 December 1975)
LIST OF REFERENCES
Mullin, J.B. and J.P. Riley. 1955.
The colorimetric determination of silicate
with special reference to sea and natural waters.
Anal. Chim. Acta. 12,
162-176.
Murphy, J. and J.P. Riley. 1962.
Modified single solution method for the
determination of phosphate in natural waters.
Anal. Chim. Acta. 27,
31-36.
National Institute of Oceanography of Great Britain and UNESCO. 1973 .
Inter-
national Oceanographic Tables, Vol . 2, Waking-Surrey, England.
Strickland, J.D.H. and T.R. Parsons. 1965 . A manual of sea water analysis.
Fisheries Res. Board of Canada, Bull. No. 125 (2nd ed. ), Ottawa.
32
APPENDICIES
33
APPENDIX I
Station Locations and Data
(OBIS I)
34
:STAT ION S:Ut·lMAR'r' FOR AD\/AI'iCE I I CRUISE AD-1-?5
STATI ON LATITUDE
1
2
·-··-:.
(l
c::
·.J
6
10
11
12
1·:·
·-·
14
15
16
17
::::·1 F'
...... 5N
c::
:34 .J.
51'1
C" .:,
·";··'j
5N
··:·-··-··:·
51.5t-i
·..J·-·
:~;:3 44. 61'i
·-:.·:. :37 . 71'i
·-··-·
:3·1 :~:2. :3ti
.-,.,.
3·1 c..t:•. Ol'i
:3 4 19. Hi
34 l 'J ON
·-··-·.
.....
:~:·1-
·-··
C'
01'1
·:··-=· 5:3. 5N
-~·-·
:~::~: 51. 51'i
:~: :3 51 • 5r-i
LONI~
I TUDE
.. 44.
-:'..,.
{
'r'P I'Tr'i D'r'
75
75
01.•.1
77 :35. 51,,1
77 26. :;::IJJ
7? 1 t::. 2 1.\1
:::h.l
' 77 ·~.
77 1. H.l
77
12. E:l.o.l
.,....,
I f
4 . OI.•J
.....- 55.
:::l.a.l
..,.C'
i ·-·
-:'1:'
{
•• •_f
75
-:>C'
.. ·-'
....,..... ''==-••
~
-r=
·-·
...
-,.e
01.~1
.. ·-·
/C"
(11,,1
I_,
35
1
1 ·-·
1 c.
.-.
21
2
. -,.~
·~:
5. ::::
2 '9
1
.-
40
41
c-
.
:~
.;:.
.....
E·
E·
:3
19. .,;,
C'
6 2 0. ·-'
.-.
6 21 -=·
E. =···-:·· 1
6 2 :3. ·;..
7
:=~
1 • !=:
7
c7
5
I
·-· .:.
0
·-·0
.;:.
·-·
•
c:
t:• • ·-·
7
I
•
~
1:•
.
\-,.
DEPTH CONSEC
M
NUt·l:E:ER
12
·=·
0
·-·
8
·-·:::·=-
._r
.':•
6
,..,C•
75
t'
. ·::.....
t;:.
E.
:=:
'""C'
GMT
.....
75
75
··l7. 51.t.l
7E. :::::3. (11,,1
7E. ;;: o. (11,,1
....{ t:• 21.
76 42.
·-'
-,.r
.·=·-.
HOUR
.
.
-··
7
I
.....
C. -~·
1 ·'j
·-·
.-.r:::
c.·-·
·:.c.
.......
·: ··:,
·-'""-
..:.
.-,,-,
.;
4··l
230
42
·-'
6
7
8
'?
10
11
12
t·:.
....
14
Data Sheet Symbols
l = Depth (m)
T = Temperature ( C)
S = Salinity (o/oo)
D = Sigma-t (g/cm3)
SVA
= Specific Volume Anomaly
02 =Dissolved Oxygen (ml/1)
02' =Oxygen Saturation {International Tables) (ml/1)
AOU =Apparent Oxygen Utilization (02'-02) (ml/1)
02A = Oxygen Anomaly {Richards and Redfield, 1955)
P04
= Phosphate
(~mole)
N03 = Nitrate
(~mole)
SI = Silicate
(~mole)
N/P
= Nitrate/Phosphate Ratio
36
ADVANCE II CRUISE
LAT. = 3 4 12.5N
t
STATION
LONG.
~
77 44.0W
I,.IEATHER DATA
1.~.1 HW FORCE
·WIND DIRECTION ~
AIR TEMP
~
C
:-::
I.IEATHER CODE
B~ROMETRIC PRESSURE ~
-0
7
T
s
26.50 35.78 23.49
12 25.80 35.96 23.84
• :3 GMT COttSECUT I ~JE STAT I ON . 1
I I .'"75
DEPTH~
12M
DI ST LAST STA
SEA :s:TATE
DIRECTION ·CLOUD TYF'E
CLOUD A~1DUNT
'- /ISIBILITY CODE ·-
MB
OBSERYATIONS
02
02 '
Aou ·
02A
4 40
407
P04
.1 :3
• 05
O.OKM
~
l.•.lftl,,'E
DEGR
SVA
D
6 . ·'~/ I
1
DE•3R
N0:3
1.4
.4
:S:I
1 'j
o-...1
.4
N-" P
1 o. 8
:3. 0
~
~
ADVANCE II CRUISE 1
LftT. :-:: 3 4
5.5N
LONG.
I,JEATHER DATA
1.~1 I ND FORCE
·I,JI ND DIRECT I ON ·AIR TE~1P
··I.,JEATHER CODE
BAROMETRIC PRESSURE
z
T
s
STATION
~
6 -' ~ll
2
77 35.5W
I I .'?5
DEPTH
21M
DI ST LAST STA :-;:
:s:EA STATE
I.JA '...' E DIF:ECTION ·CLOUD T'l PE
CLOUD ANOUNT
=
VI S IBILITY CODE =
·DEGR
c
=
~
1.8 GMT CONSECUTIVE STATION
~1B
18.4KM
DEGR
OBSER'v' AT I OtiS
D
0 27.50 35.52 22.97
19 25.20 3 6.21 24.21
SVA
02
490
5.24
·-:.? ·::::>
•,J t
'-
s. s·:,.
02 '
5.30
5.57
AOU
02A
• 06 -.87
-. 02 -1. 02
P04
• 06
• 01
N03
.6
.3
ti/ P
Sl
·:.o
•"-
1.0
1 0. 0
30.0
2
ADVANCE II CRU I SE 1
LAT. = 3 3 58.5N
STATI ON 3
LONG. = 77 26.8W
WEATHER DATA
WIND FORCE
=
WIND DIRECT ION =
AIR TEMP
=
WEATHER CODE
=
BAROMETRIC PRESSURE
z
T
s
c
D
0 27.90 35 . 16 22 . 57
23 24 . 50 36.34 24 . 53
DEPTH
=
DI ST LAST STA
23M
=
SEA STATE
=
WAVE DIRECT I ON =
CLOUD TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
DEGR
=
4 . 2 GMT CONSECUTIVE STATION . 3
6 .··'VI I 1."'75
1'1B
SVA
OBSERVATIONS
02
02 '. AOU
02A
528
342
4. 8(}
4 . 97
-.17
-.35
5. 25
5.65
• 77
. 68
P04
ItEt:;R
SI
N03
.02
. 01
18 . 6KM
N/ P
.5
.4
.3
.7
20 . 0
:3 0 . 0
V.l
00
ADVANCE II CRU I SE 1
LAT. = 33 51.5N
LONG.
= 77
WEATHER DATA
WIND FORCE
=
WIND DIRECTION = AIR TEMP
=
C
WEATHER CODE
=
BAROMETRIC PRESSURE =
T
s
D
0 27.90 35 . 33 22.70
25 23.80 36.44 24 . 8 1
2
6/V II I/75
STATI ON 4
18.2W
DEPTH
=
5.3 GMT CONSECUT I VE STATI ON
DI ST LAST STA
29M
SEA STATE
=
WAVE DIRECTION =
CLOUD TYPE
=
CLOUD AMOUNT
=
VI S IBILITY CODE =
DEGR
MB
=
18.5KM
!tEGR
OBSERVATIONS
SVA
516
315
02
4 . 91
4 . 64
02 "
5.25
5.74
AOU
. 34
1. 1 0
02A
P04
- . 5 :3 0.00
• 03
• 04
SI
t·m 3
.2
.....
·j
.....
N/ P
-;;,
1. 5
5. 0
4
ADVANCE II CRUISE 1
LAT.
= 33
44.6N
STATION
LONG. = 77
l.o.IEATHER DATA
1.._1 Ir~D FORCE
=
WIND DIRECTION = AIR TEMP
=
C
=
I...IEATHER CODE
BAROMETRIC PRESSURE =
z
w
T
s
6/VIII/75
S
9.8W
DEPTH =
6.5 GMT CONSECUTIVE STATION
40M
0 27.80 35.76 23.05
35 22.50 35.98 24.84
=
SEA STATE
=
WAVE DIRECTION =
CLpUD TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
DEGR
MB
OBSERVATIONS
SVA
02
02"
AOIJ
4:32 4.35 5.26
.91
:31 :3 5.47 5.91
.44
D
DIST LAST STA
02A
P04
5
18.2KM
DEGR
N03
.8
• :3
• 04 0. 0 0
o·....:-.
-.80
.
N/P
SI
1.1
1• 1
15.0
~
ADVANCE II CRUISE 1
LAT.
= 33
37.7N
LONG.
WERTHER DATA
WIND FORCE
=
WIND DIRECTION =
AIR TEMP
=
WEATHER CODE
=
BAROMETRIC PRESSURE
T
s
D
0 27.95 36.19 23.33
15 27.90 36.19 23.34
30 23.00 36.56 25.14
z
STATION
= 77
c
6/VIIl/75
6
1.1W
DEPTH=
DIST LAST STA
41M
SEA STATE
=
WAVE DIRECTION =
CLOUD TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
DEGR
=
7.7 GMT CONSECUTIVE STATION
MB
-
=
18.5KM
DEGR
OBSERVATIONS
SVFt
455
02
455
284
5. 13
5.25
.12
4.42
5.85
1. 43
02"
AOU
02A
PD4
0.00
-.70 0.00
.30
. 1:3
N0:3
1.0
•3
5.2
SI
N./P
1.6
1. 6
3 ..,.
o I
40.0
6
ADVANCE II CRUISE 1
LAT.
= 34
32.8N
STATION 10
LONG.
= 77
WEATHER DATA
WIND FORCE
=
WIND DIRECTION =
AIR TEMP
=
C
WEATHER CODE
=
BPROMETRIC PRESSURE =
Z
T
S
D
0 25.70 36.00 23.90
6/ VIII/75
12.8W
DEPTH :
19.3 GMT CONSECUTIVE STATION
13M
DIST LAST STA
MB
OBSERVATIONS
02
02' AOU . 02A
SVA
401
5.52
= 103.7KM
SEA STATE
=
WAVE DIRECTION =
CLOUD TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
DEGR
5.51
-.01 -1.00
P04
.05
7
DEGR
N03
N/P
Sl
.7
.4
8.0
.c-
o
ADVANCE II CRUISE 1
LAT.
= 34
26.0N
STATION 11
LONG.
=
77
WEATHER DATA
WIND FORCE
=
WIND DIRECTION =
AIR TEMP
=
C
WEATHER CODE
=
BAROMETRIC PRESSURE =
T
s
D
0 27.40 35.10 22.69
517
18 25.60 36.18 24.07
:386
z
SVA
. 6/VIII/75
4.0W
DEPTH=
25M
DIST LAST STA
SEA STATE
=
WAVE DIRECTION =
CLOUD TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
DEGR
MB
OBSERVATIONS
02 ' AOU
02
5.30
5.41
20.5 GMT CONSECUTIVE STATION
5.31
5.52
• 01
• 11
02A P04
-.97 0.01)
-.86 0.00
=
18.4KM
DEGR
ND3
.3
.2
:s I
.4
.4
N/P
8
ADVANCE II CRUISE !
LAT. = 34 19.1N
LONG. = 76 55.8W
WEATHER DATA
WIND FORCE
=
WIND DIRECTION = AIR TEMP
=
C
WEATHER CODE
=
BAROMETRIC PRESSURE =
~
T
.:..
s
6/YIII/75
STATION 12
D
DEGR
SVA
0 27.90 35.36 22.72
25 25.10 35.46 23.68
MB
DEPTH=
21.8 GMT CONSECUTIVE STATION
29M
DIST LAST STA
=
$EA STATE
=
WAVE DIRECTION =
CLOUD TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
OE:SERYATIONS
02
02" AOU '
D2A
514
423
PD4
0. 00
0. 00
9
17.9KM
DEGR
N03
..3·-·
·'j
Sl
N/P
•1
0. 0
+'-
.......
ADVANCE II CRUISE 1
LAT.
= 34
12.0N
STATION 13
LONG.
= 76
47.5W
t.JEATHER DATA
1..,1 I ~HI FORCE
=
WIND DIRECTION =
' DEGR
AIR TEI'1P
c
=
I,JEATHER CODE
=
BAROMETRIC PRESSURE =
t'1B
z
T
0 27.80
20 27.70
25 25.10
:30 24.60
s
D
SVA
6/YIII/75
DEPTH=
23.1 GMT CONSECUTIVE STATION 10
32M
DIST LAST STA
SEA STATE
=
DIRECTIOti =
CLOUD TYF'E
=
CLOUD AMOUNT
=
VISIBILITY CODE =
I.•.IAVE
OBSERVATIONS
02
02" AOU
02A
P04
N03
-
=
18.3KM
DEGR
Sl
N./P
ADVANCE II CRUISE 1
LAT.
= 34
5.0N
LONG.
= 76
WEATHER DATA
WIND FORCE
=
WIND DIRECTION =
AIR TEMP
=
C
WEATHER CODE
=
BAROMETRIC PRESSURE =
T
0 27.90
20 27.80
25 25.50
~
~
~
N
30 24.00
35 23.10
s
6/ VIII / 75
STATION 14
38.0W
DEPTH=
23.9 GMT CONSECUTIVE STATION 11
38M
DIST LAST STA =
SEA STATE
=
WAVE DIRECTION =
CLOUD TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
DEGR
MB
19.5KM
DEGR
OBSERVATIONS
D
SVA
02
02 '
Aou ·
02A
P04
ND3
SI
N/P
ADVANCE II CRUISE 1
LAT.
= 33
58.5N
LONG. = 76 30.0W
WEATHER DATA
t,JI ND FORCE
=
t.~l Il'fD DIRECT I ON =
AIR TEr1P
=
I.JEATHER CODE
=
ERRDMETRIC PRESSURE
~
w
z
T
0
15
20
25
30
35
40
28 .60
28.50
27.00
26.00
25.20
24.90
24.70
s
7/VIll/75
STAriON 15
D
c
=
SVA
DEGR
MB
DEPTH=
.8 GMT CONSECUTIVE STATION 12
4~M
DIST LAST STA =
SEA STATE
=
WAVE DIRECTION =
CLOUD TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
OBSERVATIONS
02
02~
AOU
02A
P04
N03
-
17.2KM
DEGR
SI
N/ P
ADVANCE II CRUISE 1
LAT. = 33 51.5N
LONG. = 76 21.0W
WEATHER DATA
WIND FORCE
=
WIND DIRECTION =
AIR TEMP
=
C
WEATHER CODE
=
BAROMETRIC PRESSURE =
....7
T
0 28.10
20 28.10
~
~
:~:o
50
75
100
12'5
26.50
21.50
1:3 . 1 0
16. :31)
15.90
150 15.:30
175 15.10
200 1:3.80
s
7/ VI I 1 ,.'75
STATION 16
D
SVA
DEGR
MB
1.8 GMT CONSECUTIVE STATION 13
DEPTH= 230M
DI ST LAST STA
SEA STATE
=
WAVE DIRECTIUN =
CLOUD TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
OBSERVATIONS
02
02 '
AOU
02A
P04
N03
=
19.0KM
DEGR
SI
N/ P
ADVANCE II CRUISE !
LAT.
= 33
51.5N
LONG.
= 76
WEATHER DATA
WIND FORCE
=
WIND DIRECTION =
AIR TEMP
=
C
WEATHER CODE
=
B8ROMETRIC PRESSURE =
z
~
VI
0
20
:30
40
T
27.70
27.70
24.40
23.60
s
D
7/ VIll ."'75
STATION 17
SVA
42.0W
DEGR
MB
DEPTH=
5.5 GMT CONSECUTIVE STATION i4
42M
DIST LAST STA
SEA STATE
=
WAVE DIRECTION =
CLOUD TYPE
=
CLOUD AMOUNT
=
VI SIBILITY CODE =
OBSERVATIONS
02
02 ' Aau ·
02A
P04
N03
=
32.3KM
DEGR
:S I
l'l' P
APPENDIX II
STATION LOCATIONS AND DATA
(OBIS IV)
46
$TAT ION SUM,.,ARY FOR
AD~t'ANCE
STATION LATITUrlE
LONGITUDE
:30
.3 4 17.6N
:31
:32
:34 1:3.5N
. :34 '3 . 8N
77 16. 11.1.1
77 11 • 61,)
77 7. 61,J
77 :3 . 41.~1
76 s·~. 11.~
76 5·1. ?tAl
76 50.5W
33
:34
35
'36
:37
14:3
46
4 .~
42
34
:34
'5.4N
1.2N
.33 57.3N
3'3 53.2N
3'.,
·..I
49.1N
:3:3 ·3 7. 8N
., .,
. .
45.9N
:3 3 54.2N
34 2. 3ti
·..J ·.J
76 46. 41.e.l
76 51 . 81.1.1
77
77
_..,
( (
. 2W
8. 51.•.1
16.9~
II
AD-:3-7~
YR MN D'¥' HOUR
GMT
75 12
75 12
7S 12
75 12
7'5 12
..,C'
_, 12
75 12
75 12
75 12
7S 12
75 12
75 12
(
47
9 21.4
·j ·j
.,
9 '-L-•{
9 23.7
10
•8
10 1.5
10 2.7
10 '3 . 6
10 4.6
.s
11
11 2.1
11 3.7
-11 5.4
DEPTH CONSEC
M
NUMBER
15
26
:31
3:3
34
37
:39
4:3
&:'&:'
·.J ·-'
42
:31
:30
1
2
'3
4
5
6
7
8
9
10
11
·-12
Data Sheet Symbols
l • Depth (m)
T • Temperature ( C)
= Salinity (o/oo)
D = Sigma-t (g/cm3)
SVA = Specific Volume
S
Anomaly
02 • Dissolved Oxyqen (ml/1)
02'
~Oxygen
Saturation (International Tables) (ml/1)
AOU =Apparent Oxygen Utilization (02'-02) (ml/1)
02A
= Oxygen
Anomaly (Richards and Redfield, 1955)
P04 • Phosphate
(~mole)
= Nitrate (~mole)
SI = Silicate (~mole)
N/P = Nitrate/Phosphate
N03
Ratio
48
ADVANCE II CRUISE 3 STATION
LAT.
= 34
17.6N
= 77
LONG.
lJEATHER DATA
IIJI NI• FORCE
=
!...liND DIRECTION =
AIR TEMP
=
c
IAIEATHER CODE
=
BAROMETRIC PRESSUR~ =
z
T
s
D
2 16.19 35.66 26.23
13 16.19 35.61 26.19
SYA
179
183
.
9/ XII/75
.
30
16.1W
DEPTH~
21.4 GMT CONSECUTIVE STATION
15M
O.OKM
DIST LAST STA =
SEA STATE
=
WAVE DIRECTION =
CLOUD TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
DEGR
MB
OBSERVATIONS
02
02" AOU
5.56 6.87 1. 31
5.45 6.87 1.42
02A
-.68
P04
• 01
-.43
• 03
N03
o.o
o. 0
1
DEGR
Sl
2.
2.
N/P
0. 0
0.0
~
1.0
ADVANCE II CRUISE 3 STATION
LAT.
= 34
13.5N
= 77
LONG.
WEATHER DATA
l•IIND FORCE
=
I..JIND DIRECTION =
AIP TEMP
=
I..JEATHER CODE
=
BAROMETRIC PRESSURE
31
9/ XII/75
11.6W
DEPTH=
26M
DI ST LAST STA =
10.3KM
SEA STATE
=
WAVE DI~ECTION =
CLOUD TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
DEGR
C
MB
z
22.7 GMT CONSECUTIVE STATION
DEGR
OBSERVATIONS
Z
T
S
D
2 19.02 36.21 25.96
02 36.20 25.95
15 18. 32. 36.24 26.16
24 18.22 36.20 26.15
•3
t ·~.
SVA
205
206
186
5.21
5 . 22
6.41
6.41
5.28
188
5.29
6.52
6.54
02
02 "
AOU
02A P04
1.20 -. :35 . 03
1.19 -. :37 o. 00
1.24 ·-. 15 • 01
1.25 -.12 0.00
N03
0.0
o. 0
o. 0
o. 0
Sl
2.
1.
1•
1.
N/ P
0. 0
I
0.0
I
2
ADVANCE II CRUISE 3 STATION
LAT. = :34
9.8N
LONG.
WEATHER DATA
WitiD FORCE
=
l.aJittD DIRECTION =
AIR TEMP
=
I.~,IEATHER CODE
=
BAROMETRIC PRESSURE
z
VI
0
2
14
23
27
T
19.17
19.17
18.97
18.77
s
36.16
36.16
36.24
36.22
D
25.88
25.88
25.99
26.03
= 77
c
=
Sl/A
213
213
203
199
9/ Xll/75
32
7.6W
DEGR
MB
DEPTH =
23.7 GMT CONSECUTIVE STATION
31M
DIST LAST STA
:SEA STATE
=
WAVE DIRECTION =
CLOUD TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
DBS:ER'JAT I OttS
02
02" AOU
5.23 6.39 1.16
5.15 6.39 1. 24
5.20 6.42 1. 22
5.25 6.45 1. 20
02A P04
-.39 0.00
-.31 0.00
-.34 • 02
• 42 • 02
N0:3
=
9.2KI1
DEGR
0.0
SI
2.
1.
o. 0
1.
1.
o. 0
o. 0
3
N/ P
I
I
o.o
o.o
ADVANCE II CRUISE 3 STATION
LAT.
= 34
~#.lEATHER
5.4N
LONG.
= 77
33 10/ XII/75
3.4W
::
l.o.IIND IIIRECTHltf =
AIR TEI1P
=
!,.lEATHER CODE
=
BAROMETRIC PRESSURE
s
D
T
2 20.12 36.10 25.59
25 20.12 36.22 25.68
30 19.52 36.22 25.84
VI
,_
=
33M
DIST LAST STA
=
4
10.4KM
DATA
IJ.I I NO FO~CE
z
DEPTH
.8 GMT CONSECUTIVE STATION
DEGR
c
=
SVA
240
232
217
t1B
SEA STATE
=
WAVE DIRECTION =
CLOUD TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
OBSERVATIONS
02
02"' AOU
5.19 6.25 1.06
5.17 6.25 1. 08
5.04 6.34 1. 30
02A P04
-.39 0.00
-. :36 • 01
-.20 .11
N03
0.0
0.0
o.o
DEGR
Sl
1.
t.
2.
tf/ P
I
0.0
0.0
ADYANCE II CRUISE 3 STATION
LAT. = 34
1.2N
34 10/
LONG. = 76 59.1W
WEATHER DATA
IAIIND FORCE
=
IAJINr• DIRECTION =
AIR TEMP
=
I.,IEFtTHER CODE
=
BAROMETRIC PRESSURE
XII/~S
DEPTH~
34M
DIST LAST STA
=
10.2KM
SEA STATE
=
MAVE DIRECTION =
CLOUD TYPE
=
CLOUD AMOUNT
=
VI SIBILITY CODE =
DEGR
C
=
1.5 GMT CONSECUTIVE STATION
MB
DEGR
OBSERVATIONS
\Jl
N
02'
5.94
AOU
02A
298
02
4.97
292
244
239
4.92
5.12
5.11
5.96
6.24
1.04
1.12
1.16
-.21 0.00
D
Z
T
2 22. 29 3 6.08 24.98
SVA
10 22.19 :3 6. 14 25. 05
20 20.19 36.09 25.56
:32 19.99 36.08 25.61
:S:
6.27
P04
.97 . -.27 0.00
-.33 0.00
-.31 • 01
N03
SI
0.0
2.
0. 0
0. 0
1.
1.
1•
o.o;
N/ P
I
I
I
0.0
5
ADVANCE II CRUISE 3 STATION
LAT. = 33 S7.3N
LONG.
WEATHER I•ATA
WIND FORCE
=
1.\IHiD DIRECTION =
AIR TEMP
=
!,.lEATHER CODE
=
BAROMETRIC PRESSURE
z
VI
w
2
8
24
33
T
24.24
24.24
22.59
22.24
s
36.10
36.14
36.19
36.14
~
35 10/ XII/75
76 S4.7W
DEGR
·C
MB
z
D
SVA
24.42
24.45
24.97
25.03
351
349
300
295
DEPTH
=
2.7 GMT CONSECUTIVE STATION
37M
DIST LAST STA
=
9.9KM
SEA STATE
=
WAVE DIRECTION =
CLOUD ~YPE
=
CLOUD AMOUNT
=
VISIBILITY CODE ~
OB:SERVAT IONS
02"' AOU
02
4.87 5.69
.82
4.88 5.69
.81
.95
4.95 5.90
4.83 5.95 1.12
02A
-.26
-.27
-.25
-.12
P04
0.00
0.00
0.00
0.00
6
DEGR
N03
0.0
o.o
o. 0
o. 0
SI
N/P
2.
I
2.
I
I
I
1.
1.
ADVANCE II CRUISE 3 STATION
LAT.
= :33
53.2N
LONG.
= 76
I•ATA
FORCE
=
l.tiiNI• IIIRECTION =
AIR TEMP
=
c
IAIEATHER CODE
=
BAROMETRIC PRESSURE =
36 10/ XII/75
50.5W
DEPTH
=
3.6 GMT CONSECUTIVE STATION
39M
DIST LAS:T STA
=
1
7
o. Of01
~.\lEATHER
SEA STATE
=
I,.IAVE DIRECTION =
CUlUit TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
I..J I Nit
....,
~
V1
.1:--
T
s
DEGR
. 1'1B
DEGR
OBSER\IAT I otiS
D
:S:VA
2 24.31 3 6.08 24.39
21 24.31 36.10 24.40
3'54
3'54
36 23.51 36.12 24.6S
331
02
4.92
4.89
4.88
02'
5.68
5.68
5.78
AOU
.76
• 79
.90
02A P04
-.32 • 03
-.29 o.oo
-.24 • 01
tf03
o. 0
SI
1•
N/ P
o.o
0. 0
1.
I
0
2.
0.0
I).
ADVANCE II CRUISE 3 STATION
LAT. = 3:3 49. IN
LONG.
l,IEATHER DATA
'-"IND FORCE
l,IIND DIRECTION
AIR TEMP
I,JEATHER CODE
=
=
B~ROMETRIC
\JI
\JI
=
=
PRESSU~(
= 76
37 10/
46.4W
DEPTH
-=
MB
~
4:.3M
T
s
D
:SVA
02
02'
2
16
33
40
23.96
23.96
23.46
23.36
36.07
36.08
36.10
36.16
24.48
24.49
24.65
24.73
346
345
:331
323
4.85
4.91
4.86
4.74
5.72
5.72
5.79
AOU
02A
.87
.81
.93
1.06
-.23 0.00
-.29 o.oo
-.22 • 02
-.08 0.00
s.ao
ADVANCE II CRUISE 3 STATION 148 ll/ Xll/75
= 33
37.8N
=
LONG.
z
76 51.8W
IAIEATHER DATA
l.o.IIND FORCE
=
1-'IIND DIRECTION =
AIR TEMP
c
=
ldEATHER CODE
=
BAROMETRIC PRESSURE =
DEPTH
=
P04
DEGR
N03
o. 0
~tB
N/ P
SI
I
I
2.
1.
0.0
•1
.2
·::>
~-
5.0
R
2.
.S GMT CONSECUTIVE STATION
SSM
DIST LAST STA
=
22.SKM
SEA STATE
=
WAVE DIRECTION =
CLOUD TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
DEGR
8
9. 91(M
OB:SER\IATIONS
z
LAT.
DIST LAST STA
SEA STATE
=
WAVE DIRECTION =
CLOUD TYPE
=
CLOUD AMOUtiT
=
VISIBILITY CODE =
DEGR
c
4.6 GMT CONSECUTIYE STATION
Xll/7~
DEGR
O.B ~~ ERYAT IONS
Z
T
S
D
2 22.72 36.11 24.88
so 22.72 36.12 24.88
SVA
308
310
02
4.74
4.69
02 '
5.88
s.aa
AOU
1.14
1.19
02A P04
.-.06 • 04
-.01
• 01
N03
Sl
•1
2.
.2
•;::)
....
N/ P
2.5
20.0
9
ADVANCE II CRUISE 3 STATION
LAT.
= 33
4S.9N
LONG.
WEATHER DATA
MIND FORCE
=
WIND ItiRECTION =
AIR TEMP
=
MEATHER CODE
=
BAROMETRIC PRESSURE
z
T
s
D
2 24.11 36.11 24.47
40 24.01 36.11 24.50
= 77
c
46 11/
.2W
SVA
347
:345
DEPTH
=
42M
DIST LAST STA
=
19.8KM
:S:EA STATE
=
l.t.IAVE DIRECTION =
CLOUD TYPE
=
CLOUD AMOUI'H
=
VISIBILITY CODE =
DEGR
=
2.1 GMT CONSECUTIVE STATION tO
Xll/7~
MB
OBSERVATIONS
02
02" AOU
4.75 5.70
• 95
4.74 5.72
.98
02A P04
-.14 0.00
-. 12 .16
DEGR
tm3
o. 0
•1
SI
2.
2.
N./P
I
.6
U1
0\
ADVANCE II CRUISE 3 STATION
LAT.
= :33
'54.2N
LONG. = 77
l•JEATHER DATA
WIND FORCE
=
WIND DIRECTION =
AIR TEMP
=
I.JEATHER CODE
=
BAROMETRIC PRESSURE
T
s
D
2 23.94 36.14 24.54
23 24.04 36.14 24.51
29 21.14 36. 07 25.29
z
44 ll/ Xll/75
8.SW
DEGR
c
=
SVA
340
344
270
~1B
DEPTH
=
3.7 GMT CONSECUTIVE STATION 11
31M
DI:ST LAST STA
=
20.0t<:M
SEA STATE
=
WA'v'E IIIRECTION =
CLOUD TYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
OBSERVATIONS
02 ' AOU
02
4 .. 76 5.72
• 96
4.80 5.71
.91
4.97 6.10 1.13
02A P04
-. 13 o. 00
-. 18 o. 00
-.22 • 03
DEGR
NIJ3
o. 0
o. 0
•1
SI
2.
t.
2.
tf/P
I
I
3. :3
ADVANCE II CRUISE 3 STATION
LAT.
= 34
2.3N
LONG. = 77 16.9W
WEATHER DATA
WIND FORCE
=
WIND DIRECTION =
AIR TEMP
=
WEATHER CODE
=
BAROMETRIC PRESSURE
7
T
S
D
2 19.20 36.12 25.84
28 19.20 36.14 25.86
V1
......,
c
=
SYA
216
215
5.4 GMT CONSECUTIVE STATION 12
42 11/ Xll/75
DEGR
MB
DEPTH =
30M
DIST LAST STA
SEA STATE
=
WAYE DIRECTION =
CLOUD fYPE
=
CLOUD AMOUNT
=
VISIBILITY CODE =
OBSERt/AT IONS
02
02 '
AOU
5.21 6.39 1.18
5.17 6.39 1.22
02A P04
-.37 .01
-.33 .12
=
19.8KM
DEGR
N03
0. 0
SI
1.
0.0
1•
N/ P
0.0
o.o