CENTRAL CALIFORNIA COASTAL CIRCULATION STUDY
DRIFTER OBSERVATIONS
FEBRUARY, JULY, OCTOBER 1984 AND JANUARY 1985
by
Dudley B. Chelton
t{/
College of Oceanography,
Oregon State University,
Corvallis, Oregon 97331
Data Report 130
Reference 87-06
January 1987
Minerals Management Service
U.S. Department of the Interior
Contract No. 14-12-0001-30020
Raytheon Service Company
Subcontract No. 9330936556
TABLE OF CONTENTS
Abstract
Introduction
Drifter Design
7
Data Processing
10
Data Presentation
12
Acknowledgements
22
References
23
Figure Sections
Cruise 8401 (February 1984)
Cruise 8403 (July 1984)
Cruise 8404 (October 1984)
Cruise 8501 (January 1985)
ABSTRACT
Surface drifters were deployed and tracked over the continental shelf and
upper continental slope off central California between Point Conception and
Point Sur.
The drifters were deployed and tracked from aircraft by Aero-Marine
Surveys, Inc. under subcontract to Raytheon Service Company as part of the
Central California Coastal Circulation Study sponsored by the Minerals
Management Service.
The objectives of this 18-month field program were to
obtain a set of observations of the ocean water mass and velocity fields and
develop a detailed description of these fields and their seasonal and shorter
period variations.
The ultimate goal is to assess the impact of exploitation
of offshore oil and gas resources of the outer continental shelf region.
This
data report contains maps of drifter trajectories for a total of 78 drifters
deployed and tracked during four separate months (February, July and October
1984, and January 1985).
the times of deployment.
Also included are time series plots of winds during
1
INTRODUCTION
The Central California Coastal Circulation Study (CCCCS) was an 18-month
field program designed to study the variability of water mass characteristics
and velocity field on the continental shelf and upper continental slope from
Point Conception to San Francisco.
This study was funded by the U.S.
Department of Interior, Minerals Management Service (MMS)
as part of an overall
assessment of the impact of development of oil and gas resources on the
ecosystem of the California Current System.
The region from Point Conception
to Point Buchon (100 km to the north), extending 50 km offshore, is of
particular interest as this will be the focus of oil and gas exploration and
production in the immediate future.
However, MMS is also interested in how
this region relates to the large scale flow of the California Current System.
Historically, repeated surveys of the California Current System have been
conducted since 1949 by the California Cooperative Oceanic Fisheries
Investigations (CalCOFI).
The primary purpose of these surveys is to gain an
understanding of the ecological factors controlling the fisheries in this
region and develop a useful fisheries management strategy.
The area sampled
most intensely by CalCOFI ranges from San Francisco in the north to southern
Baja California and extends offshore a distance of approximately 500 km.
Hydrographic measurements have been made on a geographically fixed grid with
65 km spacing in both the alongshore and cross-shore directions (somewhat
tighter cross-shore spacing nearshore).
The 35-year CalCOFI data set has been very useful for studies of the
seasonal (Reid, Roden and Wyllie, 1958; Lynn, 1967; Hickey, 1979; Chelton,
1984) and interannual (Chelton, Bernal and McGowan, 1982) variability of water
mass characteristics and the flow field in this region.
However, the
relatively coarse 65 km grid spacing has restricted these studies to rather
large spatial scales of variability.
Finer spatial resolution is necessary to
study the fate of pollutants associated with oil and gas development on the
outer continental shelf.
The purpose of CCCCS was to collect a set of
measurements capable of resolving finer spatial scales and shorter temporal
scales than can be studied from historical data.
The relation between the
CCCCS survey region and CalCOFI sampling grid is shown in Fig. 1.
The
CalCOFI Grid and CCCCS Sampling Region
38°N
36°
34°
I27°W
Fig. 1
125°
123°
121°
The standard CalCOFI grid pattern off the central California coast.
The numbers at the offshore locations refer to the CalCOFI line
numbers. The numbers at the southern locations refer to CalCOFI
The full CCCCS sample region and the
station numbers along each line.
CCCCS snapshot sample region are indicated by the boxed areas.
3
locations of the CCCCS CTD stations, current meters and NDBC wind buoys are
shown in Fig. 2.
The CCCCS CTD sampling grid was more dense in the southern
portion of the CCCCS sampling region.
The water mass characteristics in this
"snapshot region" were sampled twice over an eight day period during most of
the CCCCS CTD surveys to investigate how rapidly the water mass and flow field
characteristics change in this region.
The field work for CCCCS was conducted from February 1984 through July
1985 by Raytheon Service Company.
Measurements collected during this 18-month
field study can be categorized as:
(a)
Measurements and data collected over the entire 18-month period.
Measurements of this type included:
Moored current meter data and bottom pressure gauge measurements
(30 minute interval).
Meteorological data (hourly interval).
Sea-level (tide gauge) observations (hourly interval).
Infrared satellite imagery (including all sufficiently clear images).
(b)
Measurements and observations related to the episodic sampling of summer,
fall and winter seasons (with two winter samplings).
Measurements of this
type included:
Hydrographic measurements (20 km CTD spacing with XBTs in between).
Lagrangian surface current drifter studies.
The continuous measurements extended from February 1984 through July 1985.
The episodic operations took place in February, July and October 1984 and
January 1985.
A preliminary analysis of the entire CCCCS data set is presented
in Chelton, Bernstein, Bratkovich and Kosro (1987).
This data report deals
only with the surface drifters deployed in the snapshot region during all four
of the episodic operations.
Coincident with each of the four CCCCS CTD surveys, approximately 20
surface drifters were deployed from aircraft in the snapshot region.
The
drifters used in these surveys consisted of a 132-cm tube that floats
vertically like a spar buoy, with a cylinder 6 cm in diameter protruding about
20 cm above the water line.
The drifters are coupled to the surface water
motion by four orthogonal arms that radiate outward 60 cm from the tube,
attached 15 cm below the water line.
A more detailed description of the
drifters is given in the following section.
Field test comparisons with dye
14
37
46012
II
Point Sur
36
Point
Buchan
46028
35
Point
Conception
46011
34
46023
123
Fig. 2
122
121
120
Map of the CCCCS study region overlayed on depth contours in meters.
The dots indicate the locations of CCCCS CTD stations. Current meter
moorings are shown by squares and NDBC wind buoys are shown by
Current meter moorings and NDBC buoys are identified by
triangles.
letters and numbers, respectively.
patches showed downwind motion of the drifters at an average of 0.5% of the
wind speed.
Consequently, windage of the drifters is believed to not be a
serious problem.
An attempt was made to coordinate the drifter release locations with flow
patterns inferred from infrared satellite imagery.
Each drifter was equipped
with a radio beacon which allowed an aircraft to home on the device from a
distance of 50 km or more.
The drifters were tracked by aircraft over a period
of about 15 days using a radio direction finder and Loran-C aircraft position
determination.
Daytime location of the drifters was aided visually by dye
released continuously from the drifter (see next section).
In the first drifter survey (February 1984), drifters were released in two
clusters separated by 5 days.
There were 10 drifters deployed in the first
cluster and 9 in the second.
In subsequent drifter surveys (July and October
1984, and January 1985), drifters were released in three clusters of 8,
separated in time by 4-6 days.
In the early period after each cluster
deployment, drifter locations were determined three times daily from two
daylight flights and one night-time flight.
During some of the surveys it was
necessary to eliminate some of the tracking flights due to heavy fog
conditions.
There was one occasion during the July 1984 survey that a
mechanical failure in the aircraft engine curtailed flights for a 24 hour
period.
Toward the end of the tracking exercise for each cluster, the drifters
had dispersed over a large area and it was necessary to reduce the number of
tracking flights to two per day in order to locate all of the drifters.
One of the objectives of the drifter studies was to evaluate surface
transport characteristics between prime areas of resource development and
environmentally sensitive areas of the California coastal region.
Another
objective was to relate the drifter-inferred surface flow to environmental
conditions prior to or during the drifter surveys.
Large-scale oceanographic
and meteorological conditions in the California current during the times of the
four drifter surveys are summarized in four CCCCS CTD data reports (Chelton and
Kosro, 1987a; 1987b; 1987c; 1987d).
Surface geostrophic flow conditions
inferred from the CCCCS CTD data from the full and snapshot regions are
included in the figures presented later in this report.
In addition, satellite
infrared images of the California Current and maps and time series of the wind
field at the times of the drifter surveys are included in the report.
6
As a brief overview of surface flow characteristics inferred from the
drifter surveys, the July 1984 drifter trajectories were variable but generally
poleward in the snapshot region, with very rapid poleward flow (speeds
exceeding 35 cm/s) north of 35°N.
There is a suggestion of offshore turning of
the drifters at Point Sur, where an offshore jet of cold water is evident in
the satellite imagery.
Note that the rapid poleward velocity of the drifters
is against the winds which were equatorward throughout the July 1984 drifter
survey period.
All of these features are consistent with both the current
meter measurements and surface dynamic topography.
The October 1984 drifter trajectories were also consistent with CTD data;
all of the drifters moved steadily southward with typical speeds of 20-30 cm/s.
In contrast, the drifter trajectories for the two winter surveys are
difficult to rationalize in terms of the flow patterns inferred from other
data.
For example, most of the February 1984 drifters moved in a generally
southward or southwestward direction.
Yet the geostrophic flow was
consistently poleward in the drifter survey region.
Similarly, the January
1985 geostrophic flow was quite strong poleward in the drifter region, but the
drifter trajectories are more indicative of variable flow.
The rather surprising discrepancies between the drifter and hydrographic
data during the two winter surveys are presently under investigation.
As noted
previously, field test comparisons with dye patches showed downwind motion of
the drifters at an average of 0.5% of the wind speed.
For the winds observed
during the CCCCS drifter surveys the corresponding wind drift velocities (less
than 5 cm/s) are much smaller than the observed drifter velocities of
15-30 cm/s.
problem.
Consequently, windage of the drifters is believed to be no
A more likely explanation for the discrepancies between drifter and
hydrographic data is a poor representation by the hydrographic data of
near-surface currents.
Overall, from the four drifter surveys, the flow appears to be
considerably more complex in the snapshot region than in regions both north of
35.2°N and south of 34.4°N.
tended to wander
in
In all but the October 1984 survey, drifters
the snapshot region but move steadily and rapidly either
southward or northward outside of the snapshot region.
This apparent
difference may be due in part to the more frequent drifter location fixes
shortly after a cluster deployment when the group of drifters was more tightly
7
clustered.
However, a fundamentally different character of the circulation in
this region might be expected due to the influence of flow in and out of the
Santa Barbara Channel (Brink and Muench, 1986), as well as by ocean conditions
to the north and south.
The wider continental shelf in this region (see
Fig. 2) may also be a contributing factor.
DRIFTER DESIGN
The drifters used in the CCCCS surveys were designed previously by
Raytheon Ocean Systems Company for application to study of the New England
outer continental shelf.
A complete description of these drifters is given in
Cook, Richardson, Flynn and Berger (1980).
The following summary has been
extracted directly from this reference.
The design of the drifter is shown in Fig. 3.
The assembled unit looks
like an elongate vertical cylinder with four equally spaced radial arms just
below the water surface.
Major structural elements include an outer tube, an
inner tube, flotation devices, and the arms.
The tubes are made of low density polyethylene.
The inner tube, which
extends the full 132-cm length of the drifter, is capped and ballasted with
lead.
The lower portion is packed with a waxlike mixture of hydacid uranine
concentrate (fluorescein dye), polyethylene glycol, and oleic acid.
This
section of the inner tube has eight vertical slits which expose the dye
mixture.
The inner tube is separated from the outer tube by four thin
vertical strips of styrofoam.
The shorter outer tube rests at its upper end
against a wooden dowel driven through the inner tube.
An end cap at the bottom
of the outer tube has a one-way rubber check valve which admits water into the
drifter.
A polyethylene collar just above the dowel has four high density
polyurethane arms attached to it radiating horizontally outward from the collar
where they overlap at right angles to each other.
Seated just between the arms
and upper collar is a ring of styrofoam surrounding the inner tube.
A
styrofoam cylinder of similar length is housed within the inner tube and held
in place by dowels.
The 8 kg (in air) drifter floats vertically like a spar
buoy with the waterline a few centimeters below the top of the flotation ring.
Thus, about 20 cm of the unit is above the water surface and 112 cm below.
arms attach 15 cm below the surface.
The
ANTENNA
WALL THICKNESS 0.318 CM
OUTER DIA. 6.7 CM
RADIO
BEACON
FLOTATION
4111141;ER
LINE
8 SLITS 63.5 X 0.318 CM
INTERSPERSED WITH
4 STYROFOAM STRIPS
91.4 X I.3 X 0.64 CM
COMPRESSED
DYE MIXTURE
INNER TUBE
OUTER TUBE
BALLAST
END CAP WITH
CHECK VALVE
ASSEMBLED UNIT
WALL THICKNESS 0.318 CM
OUTER DIA. 8.9 CM
-r
KG LEAD DISK
_L
INNER TUBE
WOOD DOWEL, DIA .1.3 CM,
LENGTH 11.4 CM
POLYETHYLENE
COLLAR
INNER FLOTATION STYROFOAM,
LENGTH 20.3 CM OUTER DIA. 6.35CM
OUTER FLOTATION STYROFOAM,
LENGTH 20.3 CM OUTER DIA.12.7 CM
ARMS 61 X 20.3
POLYETHYLENE
END CAP WITH
4 HOLES; RUBBER
DISK INSIDE SECURED
BY CENTER BOLT
OUTER TUBE
Fig. 3
ARMS SECURED TO
POLYETHYLENE COLLAR
BY 8 BOLTS
4°1
CM
X1111141t0.318
WOOD DOWEL
DIA.1.3 CM
LENGTH I 1.4 CM
FLOTATION ASSEMBLY
Configuration and components of the Raytheon Service Company surface
drifter used in the CCCCS surveys.
9
Vertical currents resulting from passing waves cause water to enter the
interior of the drifter through the end valve.
As this water moves upward
between the inner and outer tubes, it entrains dissolving dye through the inner
tube slits.
The water and entrained dye are discharged at the top of the outer
tube just below the water surface.
Diffusion of the negatively buoyant
fluorescein dye creates a bright green patch which can be seen from an
aircraft.
The vertical shear of wind-induced currents causes the
downward-diffusing dye to lag behind the drifter, creating a streak pointed
upwind.
Downwind slippage of the drifter is a minor contributor to this
streak.
The rate of dye dissolution increases with both higher water temperatures
and a lower concentration of oleic acid.
Proportions of dye, polyethelene
glycol, and oleic acid of 6:13:1 have been found to be well suited to water
temperatures of 5°-20°C.
This mixture releases dye strongly for 3 days and at
a diminishing rate for several more.
The four arms radiating from the drifter increase the underwater area and
thus the coupling with surface water.
with a unique indentification.
to 1,000 m.
When color-coded, they provide the unit
The 10x60 cm arms are visible from altitudes up
The overlapping arms also serve as a roto-chute when the drifter
is deployed from an aircraft, orienting it vertically and slowing its descent.
Terminal fall velocities of the drifter range from 14 to 18 m s-1 and impact
damage is usually negligible.
The primary aid in relocation is a VHF radio beacon.
These beacons are
aircraft emergency locator transmitters, made to survive high shock loads; the
output is modified to radiate at permitted frequencies for experimental
purposes.
The small, 0.23-kg beacon package fits into the open inner tube at
the top, of the drifter, and a 30 cm long antenna extends into the air.
These
beacons are available with six nonemergency frequencies in the 121.6-121.8 MHz
range (Glatzer Industries, White Plans, N.Y.).
Each frequency has one of six
different audio codes, which gives 36 individual beacon identities.
Radio beacons are activated by connecting redundant transmitter and
antenna leads just before a drifter is released.
In past studies, about 98% of
the drifters and 95% of the beacons have survived air deployment.
batteries yield 3-10 days of operation depending on type.
Alkaline
The beacons produce
a continuous signal which can be homed on by aircraft with direction-finding
10
equipment having a left-right direction indicator and an audio output.
More
sophisticated direction finders give a range and a bearing to the beacon.
The distance from which a beacon can be sensed varies with aircraft altitude
and signal strength.
For the first 50% of battery life, the beacon
transmissions can be sensed with the simpler direction finders from about 25 km
at an altitude of 200 m and from 100 km at 3,000 m.
Field test studies have been conducted to measure wind-induced drifter
displacement relative to zero leeway markers, which are 30-cm-long dye-emitting
devices having negligible exposure above the surface.
Relative to these
markers, the drifters showed downwind motion at an average of 0.5% of the wind
speed in five 30-min trials.
The drifters move downwind faster than dye
dispersed in the upper 2 m of the water column but more slowly than floating
aluminum powder.
These observations along with the leeway data suggest that
the drifters track motion of water within 1 m of the surface with reasonable
accuracy in the absence of strong winds.
DATA PROCESSING
The drifters were deployed and tracked from aircraft by Tim Flynn of Aero
Marine Surveys, Inc.
The total numbers of drifters deployed during the
February, July and October 1984, and January 1985 surveys were 19, 21, 23 and
24, respectively. The drifters were located using a radio direction finder and
Loran-C aircraft position determination.
Loran-C coordinates were converted to
latitude and longitude by Aero Marine Surveys, Inc.
A list of location fixes
for each drifter deployed in a survey was sent to Raytheon Service Company and
forwarded on magnetic tape to Oregon State University (OSU).
At OSU, the drifter locations were scanned to search for any obvious data
entry errors and determine the period of time each drifter was tracked and the
latitude and longitude range spanned by the drifter trajectory.
Several
drifters "disappeared" after a very short time and a few, for unexplained
reasons, remained at nearly fixed locations for a period of several days and
then stopped transmitting.
These drifters were excluded from subsequent
analysis (and are not shown in this data report) since the corresponding
trajectories were not useful scientifically. The total numbers of useful
drifters were 19, 18, 22 and 19 for the four surveys.
After deployment, the drifters were located three times daily (two daytime
flights and one nighttime flight).
This tracking pattern continued until the
cluster of drifters became so widely dispersed that it was impossible to carry
out three tracking exercises per day and locate all of the drifters.
The
drifters were then located twice daily until the end of the 15-day drifter
survey.
From the drifter trajectories presented later in this report, it is
apparent that the nature of the drifter movements was rather different during
each of the four surveys.
For example, most of the drifters deployed during
February 1984 meandered somewhat but generally moved in a southwestward or
southward direction at moderate speeds.
moved rapidly poleward.
During July 1984, most of the drifters
Nearly all of the October 1984 drifters moved rapidly
equatorward with some meandering.
In January 1985, there was no single pattern
to the drifter movements; some moved northward, some moved southward, and some
moved in wide, sweeping circles.
The statistical nature of the drifter trajectories can be summarized by
the time-lagged autocorrelation functions of latitudinal and longitudinal
motion (Fig. 4).
The shapes of the autocorrelation functions were quite
similar for both longitudinal and latitudinal motions, and for all four drifter
surveys.
The decorrelation time scales ranged from 2.5 to 3 days for the
February and October 1984 and January 1985 surveys.
The decorrelation time
scales were about 30% longer (about 3.5 days) for the July 1984 survey,
indicative of the rapid and steady poleward movement of most of the drifters.
From the patterns of drifter trajectories, it is apparent that there is an
underlying
frequency signal in the drifter movements.
That is, over the
periods surveyed, there were definite net movements of the drifters.
The
relatively short decorrelation time scales indicate that there is some high
frequency "noise" in the drifter motions.
Some of this high frequency "noise"
may be due to errors in the drifter location fixes; much is probably due to
inertial variability (about 1 cpd in the survey region) and tidal variations.
This high frequency variability in the drifter trajectories is, at best, barely
resolved in the 1 to 3-location fixes per day and thus introduces aliasing in
the drifter tracks.
This high frequency variability is of considerable
interest to some oceanographic studies.
However, for the goals of CCCCS, the
October 1984
February 1984
1.0
1.0
0.6
0.6
0.2
0
5
"
0.6
0.0
1.0
3.0
2.0
LAG
4.0
MO
1.0
2.0
LAG
(days)
3.0
4.0
3.0
4.0
(days)
January 1985
July 1984
1.0
LO
0.6
0.6
5
OA
MO
1.0
2.0
LAG (days)
Fig. 4
3.0
4.0
MO
1.0
2.0
LAG (days)
Time-lagged autocorrelation functions for drifter latitudinal location
(continuous lines) and longitudinal location (dashed lines) for each
of the four drifter surveys.
1 3
lower frequency variability (time scales greater than a few days to a week) is
of primary interest.
These longer time scales of drifter motion were very effectively extracted
by objective analysis minimum mean square error interpolation (Gandin, 1965;
Bretherton, Davis and Fandry, 1976) using a smoothed autocorrelation function
(a Gaussian function with a half-power point at about 2 weeks).
The smoothed
drifter locations were estimated at time intervals of 0.05 days beginning with
the time of drifter deployment and ending with the last observed drifter
location time.
Representative examples of raw drifter trajectories and
smoothed interpolated drifter trajectories are shown in Figs. 5,
each of the four survey periods.
6, 7 and 8 for
The effectiveness of the interpolation
technique for extracting the underlying low frequency motion is apparent.
Note
that the observed drifter locations do not, in general, fall exactly on the
smoothed trajectories
This is because the unresolved high frequency drifter
motion was treated as noise in the objective analysis.
This noise was assumed
to have a random root mean square error of 0.1 km.
Finally, it is useful to note that the smoothed objective interpolation of
drifter locations has another distinct advantage.
As noted previously, the
drifters were typically located three times per day for a period of several
days after each cluster deployment.
It then became necessary to reduce
aircraft flights to two per day because the drifters had become so widely
dispersed that it was impossible to locate all drifters three times per day.
The smoothed interpolation of drifter locations eliminates the sampling bias
introduced by more frequent drifter location fixes at the beginning than at the
end of a tracking exercise.
Without smoothing, the drifter trajectories give
the misleading impression that drifter motion is more chaotic shortly after
deployment than later in the tracking exercise.
DATA PRESENTATION
The figures in this data report are grouped into four sections
corresponding to the four drifter survey months (February, July, and October
1984, and January 1985).
Each section contains a set of figures intended to
summarize oceanographic and meteorological conditions at the time of the
particular drifter survey and maps of the drifter trajectories.
Included are
maps of sea surface dynamic topography relative to 500 m, a satellite infrared
114
CRUISE 8401
DRIFTER
35
34
122
Fig. 5
121
A representative February 1984 drifter track constructed by connecting
successive observation locations with straight line segments (dotted
lines) and by objective analysis using minimum mean square error
interpolation at intervals of 0.05 days between the times of first and
last observations (continuous lines).
120
1
CRUISE 8403
5
DRIFTER
7
36
35
34
Fig. 6
122
121
As in Fig. 5, except a representative July 1984 drifter track.
16
CRUISE 8404
DRIFTER
5
OCTOBER 1984
50 KM
35
34
33
121
Fig. 7
As in
Fig.
120
5, except a representative October 1984 drifter track.
17
36
CRUISE 8501
DRIFTER
35
34
122
Fig. 8
121
As in Fig. 5, except a representative January 1985 drifter track.
120
18
image of the survey area, maps and time series of winds measured during the
drifter survey, maps of drifter trajectories grouped by deployment time, and
maps of individual drifter trajectories.
The latitude and longitude bounds of
the drifter trajectory maps were selected to optimize the presentation of
drifter tracks for each survey.
All of the maps bounds for a particular survey
are the same, but the bounds differ for each individual survey (see Fig. 9).
We give here a few brief comments on each of the data products contained in
this report:
Surface dynamic topography relative to 500 m from the full region CCCCS
CTD data.
Arrows indicate the direction of geostrophic flow and a key is
shown for estimating geostrophic velocity from the dynamic height
contours.
Surface dynamic topography relative to 500 m from the snapshot region
CCCCS CTD data.
Arrows indicate the direction of geostrophic flow and a
key is shown for estimating geostrophic velocity from the dynamic height
contours.
Satellite infrared image of the California Current off central California
Data are from the operational
during the time of drifter deployments.
NOAA satellite.
Wind observations from a hand-held anemometer on board ship during CCCCS
CTD stations.
Dashed lines define day boundaries during the CTD survey.
For the first three drifter surveys, there are two maps of winds
(corresponding to the two CTD snapshots).
In January 1985 there was only
one CTD snapshot so there is only one wind map.
Table of drifters released during the survey.
Table entries include the
total number of location fixes for each drifter, the drifter release point
(decimal latitude and longitude), the release time in decimal Julian days
(the calendar date is also shown), and the last observation time in
decimal Julian days (the calendar date is also shown).
Drifters without
numbers in column 1 were deemed to not be useful scientifically (see
Times are local Pacific Standard Time (PST) for
previous section).
February 1984 and January 1985 and Pacific Daylight Time for July and
October 1984.
19
38
February 1984
July 1984
October 1984
37
January 1985
36
35
34
..tbJ
33
50 KM
32124
Fig. 9
123
122
121
120
119
118
Large-area map of the California Current off the central California
coast.
The four rectangles show the bounds selected for presentation
of the drifter trajectories later in this data report.
These
subregions were defined to optimize presentations for each of the four
individual drifter surveys.
20
Drifter deployment locations.
One map is presented for each cluster
deployment (2 deployments in February 1984 and 3 deployments each in July
and October 1984 and January 1985).
The cluster shown corresponds to all
of the drifters released on the day indicated.
Numbers correspond to the
drifter numbering convention adopted here for presentation of individual
drifter trajectories.
The lower left corner of the number defines the
release location.
The
Trajectories of all drifters released during the survey indicated.
boxes indicate the drifter release points and the tips of the arrowheads
correspond to the last observed drifter locations.
The drifter
trajectories were determined by smoothed objective interpolation as
described in the previous section.
Trajectories of all drifters in the cluster released on the day indicated.
The boxes indicate the drifter release points and the tips of the
arrowheads correspond to the last observed drifter locations.
The drifter
trajectories were determined by smoothed objective interpolation as
described in the previous section.
Trajectories for each individual drifter deployed during the survey
indicated.
18, 22
One plot is presented for each drifter (a total of 19,
and 19, respectively, for the February, July and October 1984, and
January 1985 surveys).
A table of the raw drifter locations is presented
in the upper left portion of each plot.
This table includes the drifter
observation location times (in decimal Julian days),
the observation
location (decimal latitude in °W and longitude in °N) and the average
drifter speed (in km/day) since the previous observed location.
The speed
in units of m/s is approximately 10% smaller than the speed in units of
km/day. Times are local Pacific Standard Time (PST) for February 1984 and
January 1985 and Pacific Daylight Time (PDT) for July and October 1984.
A map of the smoothed drifter trajectory estimated by smoothed
objective interpolation at intervals of 0.05 days, as discussed in the
previous section, is presented in the upper right portion of each plot.
In each map, the box indicates the drifter release point and the tip of
the arrowhead corresponds to the last observed drifter location. The dots
along each trajectory correspond to local noon of each day (and are
the observation locations).
Thus, the dots are separated by time
nat.
21
intervals of 1-day.
drifter velocity.
This provides a quick qualitative feeling for the
A more quantitative estimate can be obtained from the
last column of the table in the upper left portion of each plot.
Finally, a time series of winds is presented at the bottom of each
plot.
Except for the February 1984 drifter survey, these winds were
measured at NDBC buoy 46011 (in the middle of the snapshot region - see
Fig. 2).
During January and February 1984, NDBC buoy 46011 was
inoperative.
The wind time series in the February 1984 plots correspond
to winds measured at NDBC buoy 46028 (Fig. 2), about 150 km north of buoy
46011.
It is shown in Chelton, Bernstein, Bratkovich and Kosro (1987)
that the coherence length scales of the wind field along the central
California coast are large.
winds in the snapshot region.
Thus, buoy 46028 is also representative of
Both the alongshore (defined to be 325°T)
and cross-shore (55°T) components of wind in m/s are shown in the plot.
Positive wind speeds correspond to poleward and onshore winds.
The time
series plot is the same for each individual drifter of the particular
survey and ranges from about two weeks prior to the time of the first
drifter deployment to about two days after the time of the last observed
drifter location.
Tic marks along the bottom axis correspond to hour 0000
of each day.
Julian days and days of the month are labeled along the
bottom axis.
The vertical bars in the wind time series plots correspond
to the first and last observation times of the particular drifter plotted
in the upper right portion of each plot.
22
ACKNOWLEDGEMENTS
The collection and initial processing of the CCCCS CTD data presented in
this report were carried out by Raytheon Service Company under Minerals
Management Service Contract No. 14-12-0001-30020.
The drifters were deployed
and tracked from aircraft by Tim Flynn of Aero-Marine Surveys, Inc. based in
New London, Connecticut.
Aero-Marine Surveys was also responsible for initial
processing of the drifter data.
The data listings and plots in this report
were done at Oregon State University under Raytheon Service Company Subcontract
No. 9330936556.
23
REFERENCES
Brink, K.H., and R.D. Muench, 1986: Circulation in the Point Conception-Santa
Barbara Channel region.
J. Geophys. Res., 91, 877-895.
Bretherton, F.P., R.E. Davis and C.B. Fandry, 1976: A technique for objective
analysis and design of oceanographic experiments applied to MODE-73.
Deep-Sea Research, 23, 559-582,
Chelton, D.B., 1984: Seasonal variability of alongshore geostrophic velocity
off central California. Journal of Geophysical Research, 89, 3473-3486.
Chelton, D.B., P.A. Bernal, and J.A. McGowan, 1982: Large-scale interannual
physical and biological interaction in the California Current. Journal of
Marine Research, 40, 1095-1125.
Chelton, D.B., R.L. Bernstein, A. Bratkovich, and P.M. Kosro, 1987: The central
California coastal circulation study.
EOS, Trans. Amer. Geophys. Union,
68, pp.1, 12-13.
Chelton, D.B., and P.M. Kosro, 1987a: Central California Coastal Circulation
Study CTD observations: Cruise 8401, February 1984.
Oregon State
University Rep. 126, Ref 87-02,
Chelton, D.B., and P.M. Kosro, 1987b: Central California Coastal Circulation
Study CTD observations: Cruise 8403, July 1984.
Oregon State University
Rep. 127, Ref 87-03.
Chelton, D.B., and P.M. Kosro, 1987c: Central California Coastal Circulation
Study CTD observations: Cruise 8404, October 1984.
Oregon State
University Rep. 128, Ref 87-04.
Chelton, D.B., and P.M. Kosro, 1987d: Central California Coastal Circulation
Study CTD observations: Cruise 8501, January 1985.
University Rep. 129, Ref 87-05.
Oregon State
24
Cook, D.O., J.W. Richardson, T.L. Flynn, and K.J. Berger, 1980: Design of a
Lagrangian surface current tracer.
Limnology and Oceanography,
21,
1123-1127.
Gandin, L.S., 1965: Objective analysis of meteorological fields.
Israel
program for scientific translations, Jerusalem, 242 pp.
Hickey, B.M., 1979: The California Current system - hypotheses and facts.
Progress in Oceanography, 8, 191-279.
Lynn, R.J., 1967: Seasonal variation of temperature and salinity at 10 m in the
California Current. California Cooperative Fisheries Investigations
RePort, 19, 157-174.
Reid, J.L, G.I. Roden, and J.G. Wyllie, 1958: Studies of the California Current
System. California Cooperative Oceanic Fisheries Investigations Reports,
5, 28-57.
CRUISE 8401, FEBRUARY 1984
0/500 M
DYNAMIC HEIGHT DYN CM)
37
36
35
34
1
123
122
1
121
120
0/500 M
DYNAMIC HEIGHT (DYN CM)
FEBRUARY 1984
SNAPSHOT 2
35
0
10 20 30 40 50
CURRENT SPEED (CM,/S)
34
1
121
120
1
SNAPSHOT I
35°N
4 Feb
.."1.
3 Feb
I1
2 Feb
I Feb
20 knots
34°
120° 30'
I21°W
121° 301
.SNAPSHOT 2
35°N
1
--i.'. ,/
.
---1.
8 Feb
.
.
.
//
....,
7 Feb
/
6 Feb
.1.1,11.
N
\/
//
,
/
N
// \
5 Feb
121°
30'
.
. ,\
.1
4,
L
121°W
4,
\i,
,'\
\.
'I
\
\\
\
ssA
_-
20 knots
34°
4-
4-
.1
v
.1
..
/
1
....,
4 Feb
120° 30'
Table 1
CRUISE 8401 - FEBRUARY 1984
DRIFTER
NUMBER
NUMBER
OBS
RELEASE
LAT
RELEASE
LON
RELEASE
TIME
LAST OBS
TIME
1
25
34.58
121.44
34.44 (3 Feb.)
45.47 (14 Feb.)
2
25
34.61
121.34
34.44 (3 Feb.)
45.59 (14 Feb.)
3
19
34.65
121.25
34.44 (3 Feb.)
41.43 (10 Feb.)
4
27
34.69
121.16
34.45 (3 Feb.)
45.58 (14 Feb.)
5
26
34.73
121.08
34.45 (3 Feb.)
45.59 (14 Feb.)
6
24
34.83
120.91
34.45 (3 Feb.)
45.45 (14 Feb.)
7
24
34.87
120.84
34.45 (3 Feb.)
43.57 (12 Feb.)
8
7
34.93
120.75
34.46 (3 Feb.)
36.62 ( 5 Feb.)
9
25
34.59
120.97
34.47 (3 Feb.)
45.46 (14 Feb.)
10
26
34.74
120.82
34.47 (3 Feb.)
45.58 (14 Feb.)
11
14
34.55
120.73
39.62 (8 Feb.)
45.55 (14 Feb.)
12
13
34.43
120.74
39.62 (8 Feb.)
45.51 (14 Feb.)
13
11
34.33
120.74
39.63 (8 Feb.)
43.47 (12 Feb.)
14
13
34.22
120.74
39.63 (8 Feb.)
45.50 (14 Feb.)
15
13
33.98
120.56
39.63 (8 Feb.)
45.56 (14 Feb.)
16
11
34.23
120.55
39.64 (8 Feb.)
43.49 (12 Feb.)
17
8
34.32
120.55
39.64 (8 Feb.)
42.46 (11 Feb.)
18
11
34.45
120.57
39.65 (8 Feb.)
43.50 (12 Feb.)
19
13
34.57
120.85
39.66 (8 Feb.)
45.59 (14 Feb.)
CRUISE 8401
DRIFTERS
1
-10
CRUISE 8401
-
DRIFTERS 11
19
8 FEBRUARY 1984
I
I
I
I
I
J
50 KM
35
19
34
122
11
12
18
13
17
14
16
15
121
120
CRUISE 8401
DRIFTERS 1
- 19
CRUISE 8401
DRIFTERS 1 - 10
35
34
122
121
120
CRUISE 8401
DRIFTERS 11
- 19
DRIFTER
TIME
LAT
(days)
(deg N)
34.44
34.49
34.63
35.63
35.99
36.42
36.84
36.97
37.41
37.64
37.98
38.41
38.65
38.97
39.44
39.68
39.98
40.97
41.41
41.98
42.68
43.00
43.44
44.66
45.47
DRIFTER 1
1
34.38
34.39
34.60
34.65
34.65
34.66
34.64
34.61
34.39
34.59
34.58
34.58
34.58
34.57
34.58
34.58
34.58
34.63
34.60
34.57
34.50
34.46
34.47
34.36
34.21
LON
SPEED
W) (km/day)
121.44
121.44
121.43
121.38
121.37
121.36
121.35
121.35
121.37
121.37
121.34
121.32
121.31
121.27
121.30
121.28
121.27
121.24
121.24
121.22
121.17
121.14
121.13
120.93
120.96
FEBRUARY 1984
18.51
12.58
7.11
2.17
3.87
8.30
11.02
6.97
1.65
50 KM
35
8.75
3.91
6.87
10.28
4.71
6.21
2.33
6.33
7.03
7.30
12.02
18.44
2.12
17.49
20.22
34
MM.
122
120
121
NDBC Buoy 46028
0
20
20 Jon
30
30 Jon
40
9 Feb
DRIFTER
TIME
(days)
34.44
34.49
34.84
35.83
36.00
36.43
30.65
38.98
37.43
37.84
37.98
38.41
38.68
38.98
39.45
39.87
39.96
40.97
41.42
41.98
42.69
43.01
43.45
44.84
45.49
DRIFTER 2
2
LAT
(deg N)
34.01
34.82
34.01
34.55
34.55
34.55
34.53
34.47
34.45
34.45
34.43
34.41
LON
(deg W) trmifCcilay)
121.34
121.34
121.33
121.26
121.25
121.23
121.23
121.22
121.28
121.32
10.88
9.20
9.70
2.22
3.83
12.97
19.07
12.12
15.54
6.98
7.54
8.38
18.02
10.67
12.89
10.62
8.71
6.00
14.37
18.22
26.90
21.78
10.42
16.52
121.31
121.34
121.38
34.38 121.32
34.38 121.37
34.40 121.37
34.39 121.34
34.43 121.25
34.41 121.24
34.34 121.24
34.29 121.35
34.23 121.40
34.22 121.50
34.15 121.60
34.06 121.71
34.42
pill
FEBRUARY 1984
50 KM
35
34
122
121
120
NDBC Buoy 46028
1
1
1
1
1
1-
1
1-
1
1
I
III,
IMMIN
I
1
20
20 Jan
1
II II
I
I
I
11111111111
30
30 Jan
40
9 Feb
III
DRIFTER
3
'TIME
LAT
(days)
34.44
34.49
34.84
35.82
36.01
36.43
36.65
36.99
37.43
37.65
37.99
38.42
38.68
38.98
39.48
39.87
39.97
40.98
41.43
DRIFTER 3
SPEED
LON
(deg N) (deg W) (km/day)
34.65
34.65
34.83
34.56
34.54
34.50
34.47
34.42
34.35
34.35
34.32
34.31
34.34
34.30
34.31
34.32
34.32
34.37
34.33
121.25
121.25
121.23
121.13
121.10
121.05
121.06
121.10
121.13
121.17
121.15
121.21
121.21
121.22
121.29
121.31
121.29
121.32
121.33
FEBRUARY 1984
12.78
12.73
12.99
9.98
14.75
50 KM
15.21
35
21.32
18.43
14.13
12.10
11.84
11.28
13.98
13.97
8.72
8.25
6.63
8.99
34
120
121
122
NDBC Buoy 46028
1
1
1
1
1
T
1
1
1
J III
1
1
1
1
1
1
I
1
I
1
II II
-10
-10
11111111
20
20 Jan
I
30
30 Jan
I
1
I
II
I
I
40
9 Feb
I
I
I
I
I
I
DRIFTER
TIME
(days)
34.45
34.50
34.64
35.62
36.01
36.45
36.66
37.00
37.44
37.67
37.99
38.43
38.89
38.99
39.47
39.66
39.98
40.74
40.99
41.45
41.62
42.05
42.52
43.06
43.53
44.54
45.58
DRIFTER 4
4
LAT
LON
SPEED
(deg N) (deg W) (km/day)
34.89 121.16
34.89 121.15
34.68 121.15
34.69 121.10
34.72 121.08
34.71 121.07
34.89 121.08
34.66 121.09
34.62 121.10
34.59 121.09
34.56 121.02
34.51 120.98
34.53 120.96
34.50 120.92
34.50 120.91
34.52 120.68
34.58 120.82
34.67 120.76
34.67 120.75
34.82 120.74
34.59 120.74
34.50 120.72
34.43 120.71
34.28 120.64
34.19 120.71
34.02 120.80
33.93 120.87
FEBRUARY 1984
12.98
9.12
4.94
50 lad
9.40
4.71
11.08
10.51
8.74
16.17
23.62
13.85
10.60
15.87
2.33
20.20
25.85
15.87
4.48
13.69
18.26
23.55
16.09
31.89
26.16
20.14
11.76
35
34
122
121
120
NDBC Buoy 46028
11)
10
E (I)
00
c
cri
10
10
u)
_cE °
c
-0 0
10
20
20 Jan
30
30 Jan
40
9 Feb
DRIFTER
TINE
(days)
34.45
34.50
34.65
35.62
36.02
36.45
36.86
37.00
37.45
37.68
37.99
38.44
38.69
38.99
39.47
39.98
40.73
40.99
41.45
41.63
42.05
42.53
43.07
43.53
44.52
45.59
DRIFTER 5
5
LAT
LON
SPEED
(km/day)
(deg
34.73 121.08
34.73 121.07
34.73 121.05
34.72 121.00
34.71 121.01
34.72 120.98
34.73 120.97
34.70 120.98
34.67 121.02
34.64 121.03
34.80 121.02
34.58 120.99
34.58 120.95
34.53 120.91
34.54 120.90
34.58 120.84
34.68 120.79
34.71 120.77
34.72 120.78
34.71 120.75
34.82 120.74
34.58 120.75
34.48 120.76
34.41 120.74
34.20 120.68
33.98 120.71
III
FEBRUARY 1984
12.23
12.79
4.69
3.59
50 KM
7.05
3.47
8.78
35
11.81
13.59
12.99
12.63
11.28
17.88
2.97
12.28
19.00
14.41
1.81
5.55
22.88
15.03
19.71
13.43
23.68
25.83
34
WINO
122
120
121
NDBC Buoy 46028
1
I-
1
1
1
1
1
1
1
1
1
I
-I
T
1
iMMO
I
I
1
20
20 Jan
1
1
30
30 Jan
1
1
1
1
1
40
9 Feb
1
DRIFTER
'TIME
34.45
34.85
35.66
38.03
36.48
38.82
36.98
37.40
37.83
37.97
38.39
38.83
38.96
39.42
39.71
39.94
40.95
41.73
41.96
42.66
42.99
43.80
45.45
SPEED
LON
1AT
(days)
34.51
DRIFTER 6
6
(deg N) (deg W) (km/day)
34.83 120.91
34.84 120.90 25.60
34.85 120.90
9.38
34.97 120.97 14.34
34.99 121.01
11.77
35.00 121.05
8.49
35.01 121.07
16.09
34.98 121.10 16.44
34.95 121.09
4.53
34.97 121.10 12.83
34.94 121.07 12.50
34.98 121.07 10.97
33.01 121.08
12.71
35.01 121.03
14.11
35.09 121.02
18.19
35.14 121.02 21.50
35.18 121.00
9.27
35.32 121.07
19.51
35.39 121.14
12.95
35.37 121.17
14.71
35.43 121.27
15.43
35.42 121.30
9.00
35.47 121.32
8.49
35.37 121.33
5.96
FEBRUARY 1984
1
1
1
1
I
50 K11
35
34
122
121
120
NDBC Buoy 46028
o'N
1
0
05)
L-
1
1()
1
1
1
1
1
1
I
-1
I
1
N, CO
0
o
=MINIM
0
10
c0
-0
c
0
-0
20
20 Jan
30
30 Jon
40
9 Feb
DRIFTER
TIME
(days)
34.45
34.51
34.68
35.69
36.05
36.47
36.61
38.69
38.94
37.38
37.62
37.98
38.38
38.62
38.95
39.41
39.69
40.03
40.72
41.38
41.71
42.43
43.08
43.56
DRIFTER 7
7
LAT
(deg N)
34.87
34.88
34.88
35.00
35.03
35.07
35.08
SPEED
1,0N
(deg W) (km/day)
120.84
120.82 30.30
120.81
120.76
120.75
120.75
120.74
35.06 120.73
35.02 120.69
34.98 120.72
34.93 120.72
34.89 120.71
34.84 120.69
34.86 120.88
34.88 120.70
34.90 120.71
34.92 120.73
34.95 120.72
34.99 120.72
34.94 120.68
34.88 120.87
34.73 120.66
34.68 120.73
34.60 120.84
FEBRUARY 1984
10.81
12.94
10.22
10.84
12.37
17.36
19.38
17.55
i
50 KM
35
14.13
13.84
12.77
8.26
9.07
6.11
8.50
12.13
5.29
9.50
21.12
22.37
14.91
21.97
34
122
120
121
NDBC Buoy 46028
1
-lilt
20
20 Jan
I
II
I
I 11111111111111111111111
40
30
30 Jan
9 Feb
DRIFTER
8
TIME
LAT
(days)
34.48
34.51
34.68
35.67
36.03
36.48
36.62
DRIFTER 8
LON
SPEED
(dig N) (dog W) (km/day)
34.92
34.94
34.96
35.05
35.06
35.09
35.11
120.75
120.75
120.76
120.85
120.88
120.88
120.89
!lilt!
FEBRUARY 1984
25.77
16.79
12.31
8.73
7.73
16.83
50KM
35
34
122
121
NDBC Buoy 46028
120
.
10
0
10
00
CO
0
-0
10
0
0
11111111114114"
-
w
-
--
10
20
20 Jan
30
30 Jan
40
9 Feb
DRIFTER
TIME
(days)
34.47
34.48
34.69
35.68
36.04
38.49
36.67
37.01
37.47
37.71
38.01
38.38
38.83
38.96
39.42
39.70
39.94
40.98
41.39
41.97
42.87
43.00
43.43
44.67
45.46
DRIFTER 9
9
LAT
(deg N)
34.59
34.60
34.60
34.72
34.79
34.84
34.85
34.85
34.87
34.87
34.85
34.88
34.88
34.81
34.83
34.88
34.90
34.75
34.77
34.72
34.89
34.63
34.65
34.62
34.61
LON
SPEED
W) (km/day)
120.97
120.97 124.04
120.93
18.54
120.90
13.30
120.90
19.88
120.90
12.78
120.87
12.51
120.85
5.90
120.86
3.99
120.81
19.20
6.29
120.81
120.79
9.09
120.77
6.40
120.76 22.25
120.91
30.00
120.95 24.80
120.97
10.47
120,79 23.32
121.08 60.89
120.99
18.85
120.99
4.90
120.98 20.84
8.29
121.00
3.67
120.96
120.98
2.92
FEBRUARY 1984
50 KM
35
ONE=
Cal
34
122
120
121
NDBC Buoy 46028
I
T
I
f
TN/
20
20 Jan
30
30 Jan
40
9 Feb
DRIFTER
DRIFTER 10
10
11ME
LAT
(days)
(deg N) (deg W) (Ian/day)
34.47
34.47
34.70
35.65
36.04
38.49
36.67
37.01
37.46
37.69
38.00
38.45
38.71
39.00
39.49
39.69
40.03
41.05
41.53
41.71
42.06
42.44
43.07
43.56
44.53
45.58
LON
SPEED
34.74 120.82
34.72 120.83
34.72 120.81
34.86 120.75
34.87 120.71
34.85 120.69
34.82 120.68
34.73 120.69
34.69 120.89
34.89 120.66
34.70 120.67
34.78 120.68
34.78 120.86
34.76 120.67
34.80 120.68
34.82 120.87
34.79 120.69
34.85 120.89
34.78 120.68
34.74 120.67
34.83 120.72
34.54 120.70
34.51 120.70
34.32 120.62
34.10 120.87
33.91
FEBRUARY 1984
III!!!
711.77
8.13
120.69
16.31
50 KM
12.16
5.68
22.60
29.23
9.16
10.89
5.00
13.81
10.42
7.79
9.47
12.29
9.61
5.88
18.39
24.04
35.07
28.20
5.81
45.01
25.78
19.74
122
121
120
NDBC Buoy 46028
1
I
1
1
1
1
T
1
1
till
1
I
I
1
I
1
MINNOW
1
ii
20
20 Jan
I
I
1
I
I
1
I
1
30
30 Jan
1
I
1
1
1
illIllilli
40
9 Feb
DRIFTER
TIME
DRIFTER 11
11
LAT
(days) (deg N)
39.82 34.56
39.99
34.57
40.43 34.59
40.74 34.59
41.00 34.57
41.46 34.50
41.64 34.47
42.04 34.39
42.51
34.31
42.75 34.28
43.06 34.15
43.52 34.11
44.59 34.03
45.55 33.84
SPEED
LON
(deg W) (km/day)
120.73
120.74
5.99
120.78
5.87
120.73
8.51
120.74
8.45
120.75
15.98
120.73 20.75
120.66 28.03
120.69 20.50
120.65 25.12
120.72 45.16
120.84 25.61
120.87
8.77
120.87
FEBRUARY 1984
!III!!
50 KM
35
22.11
34
120
121
122
NDBC Buoy 46028
1
20
20 Jan
1-
1
1
1
1
1
1
1
I
30
30 Jan
1
I
I
1
1
1
1
1
1
40
9 Feb
1
1
1
DRIFTER
TIME
(days)
39.82
39.99
40.44
41.00
41.47
41.65
42.03
42.51
42.75
43.05
43.51
44.60
45.51
DRIFTER 12
12
LAT
(deg N)
34.44
34.46
34.44
34.41
34.38
34.33
34.22
34.18
34.11
34.08
34.08
34.00
33.94
trg
120.74
120.74
120.71
120.66
120.61
120.61
120.84
120.79
120.82
120.89
120.95
121.07
121.13
SPEED
(km/day)
6.60
7.30
9.83
15.85
17.24
34.83
32.12
22.59
28.08
12.57
11.30
FEBRUARY 1984
I
I
I
I
I
I
50 KM
35
10.25
34
122
121
NDBC Buoy 46028
120
DRIFTER
11ME
(days)
39.63
40.00
40.44
DRIFTER 13
13
LAT
SPEED
LON
(d419 N) (dog W) (crnAlaY)
34.33 120.74
34.33 120.76
3.82
34.37 120.77 11.21
41.01
34.38 120.71
10.32
41.47 34.31 120.75
18.46
41.65 34.31 120.77 10.15
42.00 34.24 120.79 20.38
42.46 34.22 120.88 19.31
42.71
34.22 120.89
3.31
43.02 34.18 120.96 25.49
43.47 34.19 121.07
21.88
FEBRUARY 1984
50 KM
35
34
121
122
120
NDBC Buoy 46028
I
20
20 Jan
I
Li I-II
30
30 Jan
I
I
I
tJI
40
9 Feb
I
I
I
I
I
DRIFTER
TIME
(days)
39.63
40.00
40.44
41.02
41.48
41.66
41.99
42.45
42.71
43.02
43.46
44.62
45.50
DRIFTER 14
14
LAT
LON
SPEED
(deg N) (deg W) (km/day)
34.22 120.74
34.23 120.79 12.70
34.27 120.82
10.82
34.32 120.81
10.12
34.28 120.85
10.63
34.28 120.87 14.36
34.24 120.89 17.00
34.22 121.01
22.98
34.23 121.03
7.32
34.19 121.07
19.18
34.22 121.18 24.00
34.22 121.29
8.60
34.14 121.40
15.81
FEBRUARY 1984
LI II
50 KM
35
34
1.111M
122
121
NDBC Buoy 46028
120
DRIFTER
TIME
(day.)
39.63
40.01
40.45
41.02
41.49
41.67
42.01
42.47
42.72
43.03
43.48
44.58
46.56
DRIFTER 15
15
LAT
(deg N)
33.98
34.01
34.02
34.04
33.99
33.99
33.95
33.92
33.91
33.88
33.89
33.81
33.72
SPEED
1,.ON
(deg W) (km/day)
120.56
120.60
14.12
120.67 14.26
120.74 10.94
120.82 20.47
120.85 15.11
120.87 14.52
120.97 20.06
120.98
7.13
121.00 12.13
121.00
2.12
7.75
120.97
120.87 14.24
FEBRUARY 1984
S.
50 KM
35
34
120
121
122
NDBC Buoy 46028
I
I-
20
20 Jan
I
1
I
1
I
1
30
30 Jan
40
9 Feb
DRIFTER
TIME
(days)
39.64
40.01
40.46
41.03
41.49
41.68
42.01
42.48
42.73
43.03
43.49
DRIFTER 16
18
LON
LAT
SPEED
(deg N) (deg W) (km/day)
34.23
34.18
34.13
34.08
34.00
33.98
33.88
33.81
33.77
33.70
33.82
120.55
120.55
120.58
120.54
120.52
120.52
120.55
120.55
120.54
120.51
120.48
FEBRUARY 1984
19.25
8.44
11.20
18.37
25.03
29.41
15.21
19.62
28.17
21.73
1
1
1
1
1
1
50 KM
35
wow.
34
122
121
120
NDBC Buoy 46028
111111111
111111111
mmimm
20
20 Jan
II
I
I
!It!!
30
30 Jan
I
9 Feb
I
II
I
I
DRIFTER
TIME
(days)
39.84
40.02
40.47
41.03
41.50
41.67
42.00
42.46
DRIFTER 17
17
SPEED
LON
LAT
(deg N) (deg W) (km/day)
34.32
34.25
34.20
34.15
34.08
34.07
34.04
34.02
120.55
120.61
120.85
120.70
120.79
120.80
120.86
120.98
FEBRUARY 1984
24.50
15.24
14.07
22.95
10.75
17.80
20.88
1
1
1
1
1
50 KM
35
34
122
120
121
NDBC Buoy 46028
1
1
1
1-
1
1
1
1
1
1
1
1
1
1
1
1-1
1-
1
I
1
T
I
=MN=
WIMONN.
20
20 Jan
II
1
30
30 Jan
1
I
1
1
I
1
40
9 Feb
1
1
1
1
DRIFTER
DRIFTER 18
18
11ME
LAT
(doys)
(deg N) (deg W) (km/day)
39.85
40.02
40.48
41.04
41.51
41.69
42.03
42.50
42.74
43.05
43.50
34.44
34.44
34.47
34.43
34.32
34.25
34.12
34.06
34.02
33.94
33.88
LON
120.57
120.55
120.53
120.53
120.48
120.52
120.58
120.61
120.59
120.58
120.82
SPEED
4.07
7.78
7.35
28.28
45.08
43.30
18.72
19.70
27.77
15.75
[MI!
FEBRUARY 1984
50 KM
35
34
M.EMM
MM,
122
121
120
NDBC Buoy 46028
III 1 IIIITI-IIII I
I
1
I
I
20
20 Jan
30
30 Jan
40
9 Feb
I
I
I
I
I
DRIFTER
'ME
(days)
39.66
39.99
40.73
40.99
41.45
41.63
42.05
42.53
42.76
43.07
43.54
44.51
45.59
DRIFTER 19
19
LAT
(deg N)
34.57
34.61
34.73
34.75
34.75
34.75
34.69
34.63
34.60
34.51
34.45
34.28
34.02
SPEED
LON
(deg W) (km/day)
120.85
120.80
120.78
120.79
12037
120.77
120.76
120.75
120.72
120.72
120.71
120.68
120.71
FEBRUARY 1984
18.97
17.58
11.66
3.32
1.87
14.30
13.63
20.82
32.23
14.82
19.34
26.81
1
1
I
1
1
1
50 KM
35
34
122
120
121
NDBC Buoy 46028
I
I
1
I
I
I
I-I
1
I
I
I
1
1
1-
I
i
I
10
IT
I
I
1
1
I
I_
I
1
o
0
(,)
.0
-10
111.
0
10
CO
°
0
130
-10
I
I
20
20 Jan
I
I
I
Ii
30
30 Jan
I
I
I
I
40
9 Feb
I
I
I
I
I
I
CRUISE 8403, JULY 1984
0/500 M
DYNAMIC HEIGHT (DYN CM)
77.0
JULY 1934
77.9
37
77.y
)
BO
gbq'
rn
E-4
CCI 0
C..) 0
2,
P-,4
10 20 30 40 50
0
CURRENT SPEED (CM/S)
ZZ1P
36
79
6.8
76
n.705
76.7
11/4'2
35
72Z
7
77.6
34
123
12,2
121
120
DYNAMIC HEIGHT (DYN CM)
0/500 M
35
34
121
120
1SS
(31
at
41
W rzIrti
e.
91
tag
,r r
tel
46
+ LE
14
1
I+
ft+
It
(1:4'
-7
To
_zmoi
Er.
S1,
.14,
se
:111
35° N
SNAPSHOT
<1
8,/u/y
>r
7 July
ti
340_..
6Ju/y
20 knots
- 4 Ju/y
5 July, f
121°
122°W
121°
1
I
Table 2
CRUISE 8403 - JULY 1984
RELEASE
TIME
LAST OBS
TIME
RELEASE
TAT
RELEASE
LON
2
35.13
120.84
188.74 ( 6 July)
35
35.01
120.97
188.75
(
6 July)
202.40 (20 July)
6
34.89
121.11
188.75
(
6 July)
190.80 ( 8 July)
2
35
34.76
121.23
188.75
(
6 July)
202.34 (20 July)
3
35
34.57
121.15
188.76 ( 6 July)
202.43 (20 July)
4
34
34.89
120.73
188.77 ( 6 July)
201.61 (19 July)
5
35
34.80
120.84
188.77 ( 6 July)
202.38 (20 July)
6
35
34.66
121.01
188.76
6 July)
202.46 (20 July)
7
19
35.13
120.84
194.64 (12 July)
202.38 (20 July)
8
7
35.08
120.89
194.64 (12 July)
196.59 (14 July)
9
19
34.76
121.25
194.66 (12 July)
202.42 (20 July)
10
19
34.54
121.06
194.70 (12 July)
202.53 (20 July)
11
19
34.52
120.84
194.71 (12 July)
202.51 (20 July)
12
18
34.54
120.67
194.71 (12 July)
200.42 (18 July)
13
19
34.81
120.84
194.72 (12 July)
202.36 (20 July)
14
19
34.94
120.71
194.73 (12 July)
202.35 (20 July)
15
9
34.73
120.78
197.83 (15 July)
202.33 (20 July)
16
7
34.41
120.83
197.77 (15 July)
199.82 (17 July)
17
10
34.46
120.73
197.81 (15 July)
202.33 (20 July)
18
10
34.47
120.66
197.81 (15 July)
202.56 (20 July)
3
34.51
120.57
197.82 (15 July)
198.67 (16 July)
DRIFTER
NUMBER
1
NUMBER
OBS
(
189.39
(
7 July)
CRUISE 8403
DRIFTERS
36
35
34
MONO
122
121
CRUISE 8403
DRIFTERS 7
-
36
35
34
122
121
14
CRUISE 8403
DRIFTERS 15
-
18
15 JULY 1984
I
I
50 KM
36
35
34
122
121
CRUISE 8403
DRIFTERS 1 - 18
36
35
34
122
121
CRUISE 8403
DRIFTERS 1
36
35
34
122
121
CRUISE 8403
DRIFTERS 7
-
14
36
35
34
121
CRUISE 8403
36
DRIFTERS 15
18
1101111M
35
34
122
121
DRIFTER
DRIFTER 1
1
TIME
LAT
(days)
(deg N)
188.75
189.40
35.01
34.99
34.99
35.01
35.03
35.04
189.71
190.32
190.54
190.79
191.33
191.59
191.80
192.30
192.58
192.80
193.31
193.58
193.81
194.29
194.85
194.80
195.30
195.58
195.79
198.29
196.60
196.80
197.31
197.72
198.38
198.60
198.80
199.32
199.56
199.76
200.33
201.57
202.40
33.06
35.07
35.05
35.08
35.08
35.08
35.09
35.12
35.11
33.10
35.10
35.09
35.08
35.07
35.08
35.10
35.12
35.16
35.22
35.23
35.33
35.35
35.36
35.46
35.50
35.56
35.68
38.10
36.28
LON
SPEED
W) (km/day)
120.97
120.99
120.97
121.00
120.99
120.97
121.00
120.99
120.99
121.04
121.00
120.99
121.08
121.03
121.01
121.11
121.14
121.15
121.19
121.21
121.18
121.21
121.22
121.19
121.23
121.24
121.30
121.31
121.35
121.42
121.44
121.47
121.80
121.85
122.18
5.08
4.77
5.57
9.45
9.41
6.53
8.42
36
10.22
8.80
14.08
6.36
12.74
15.79
11.04
17.76
7.80
9.54
9.20
6.82
12.08
8.86
6.85
26.66
13.98
35
4.91
18.59
11.49
17.70
24.26
23.32
31.76
31.04
42.47
38.68
34
122
121
NDBC Buoy 46011
1
T
I
I
T
I
110
180
28 Jun
190
8 Jul
200
18 Jul
DRIFTER
TIME
(days)
188.75
189.41
189.72
190.33
190.56
190.80
191.36
191.60
191.81
192,31
192.57
192.81
193.32
193.60
193.83
194.30
194.67
194.82
195.32
195.59
195.80
198.30
198.81
196.81
197.32
197.83
198.47
198.88
198.88
199.28
199.53
199.74
200.30
201.53
202.34
DRIFTER 2
2
LAT
(deg N)
34.76
34.76
34.77
34.72
34.72
34.69
34.65
34.62
34.59
34.57
34.58
34.54
34.53
34.56
34.54
34.56
34.61
34.62
34.66
34.69
34.68
34.69
34.75
34.75
34.77
34.80
34.85
34.88
34.89
34.92
34.97
35.02
35.04
35.10
35.02
LON
SPEED
(deg W) (km/day)
121.23
121.23
121.20
121.22
121.22
0.58
10.88
10.21
3.09
12.12
121.21
121.28
121.26
121.25
121.30
121.30
36
14.81
12.78
20.85
8.68
5.54
19.00
8.88
9.69
121.31
121.35
121.36
121.34
121.32
121.27
121.23
121.18
121.11
121.08
121.05
120.98
120.92
120.92
120.87
120.88
120.85
120.83
120.85
120.84
120.80
10.91
5.18
20.11
25.27
13.83
26.13
24.90
2.47
35.49
19.84
4.82
10.46
35
10.01
20.25
10.02
8.43
25.90
34.01
4.12
7.00
11.58
120.81
120.75
120.71
34
122
121
NDBC Buoy 46011
I
I
I
I
I
180
28 Jun
1
I
1
190
8 Jul
200
18 Jul
DRIFTER
11ME
(days)
188,78
189.42
189.73
190.34
190.57
190.81
191.37
191.61
191.82
192.32
192.59
192.81
193.32
193.63
193.83
194.31
194.68
194.82
195.33
195.59
195.81
196.32
198.83
196.83
197.34
197.78
198.39
198.62
198.82
199.34
199.58
199.78
200.35
201.59
202.43
DRIFTER 3
3
LON
LAT
SPEED
(deg N) (deg W) (km/day)
34.57 121.15
34.57 121.23
34.58 121.21
34.54 121.27
34.57 121.28
34.54 121.25
34.53 121.32
34.53 121.29
34.50 121.30
34.45 121.38
34.48 121.39
34.42 121.39
34.39 121.42
34.40 121.42
34.39 121.40
34.40 121.41
34.47 121.36
34.45 121.35
34.45 121.42
34.48 121.42
34.49 121.40
34.55 121.44
34.62 121.42
34.63 121.41
34.89 121.37
34.72 121.29
34.77 121.18
34.79 121.14
34.80 121.11
34.85 121.05
34.92 120.99
34.95 120.97
35.10 121.02
35.49 121.21
35.61 121.35
10.73
4.97
10.02
16.11
13.24
11.17
8.29
20.41
17.25
5.96
20.38
8.35
3.35
10.84
3.09
21.97
20.02
12.35
12.93
8.28
15.08
24.92
7.59
18.05
19.52
17.95
18.65
16.73
13.48
38.87
20.11
31.55
36.80
22.28
36
35
34
122
121
NDBC Buoy 46011
II LI
1
III
MEMO=
180
28 Jun
190
8 Jul
200
18 Jul
DRIFTER
TIME
(days)
man
189.44
189.75
190.36
190.58
190.83
191.39
191.63
191.83
192.33
192.61
192.83
193.34
193.65
193.84
194.32
194.69
194.84
195.36
195.83
195.82
196.36
196.66
196.84
197.36
197.80
198.41
198.65
198.84
199.37
199.81
199.81
200.38
201.61
DRIFTER 4
4
I,AT
1,.ON
SPEED
(deg N) (deg W) (km/day)
34.89
34.75
34.73
34.72
34.70
34.68
34.62
34.63
34.81
34.58
34.57
34.54
34.47
34.42
34.36
34.19
34.16
34.16
34.11
34.12
34.13
34.21
34.27
34.28
34.33
34.30
34.36
34.40
34.41
34.42
34.45
34.46
34.49
34.67
120.73
120.75
120.77
120.74
120.72
120.69
120.74
120.76
120.75
120.79
120.77
120.75
120.76
120.76
120.76
120.86
120.88
120.88
120.94
120.90
120.88
120.88
120.82
120.82
120.86
120.89
120.98
121.02
121.03
121.13
121.16
121.15
121.25
121.36
23.45
10.11
6.47
12.14
14.11
15.42
10.60
17.12
36
9.28
5.59
16.56
15.54
19.34
33.02
43.56
9.71
4.42
13.89
14.38
9.96
16.16
30.97
5.07
12.47
9.58
17.79
25.29
8.29
16.08
20.36
4.83
16.84
18.39
35
34
122
121
NDBC Buoy 46011
I
IIIII1I1I1III11
180
28 Jun
190
8 Jul
200
18 Jul
DRIFTER
TIME
(days)
188.77
189.44
189.74
190.35
190.50
190.82
191.40
191.65
191.84
192.29
192.55
192.80
193.31
1.93.59
193.82
194.29
194.85
194.81
195.31
195.57
195.78
196.29
196.59
196.80
197.31
197.72
198.37
198.60
198.80
199.32
199.55
199.78
200.33
201.56
202.38
DRIFTER 5
5
LON
LAT
(deg N)
34.80
34.83
34.88
34.89
34.94
34.95
34.90
34.93
34.90
34.88
34.91
34.90
34.91
34.93
34.90
34.90
34.92
34.90
34.96
35.02
35.03
35.11
35.18
35.23
35.30
35.35
35.41
35.43
35.42
35.52
35.56
35.81
35.75
36.17
(deg
120.84
120.88
120.87
120.88
120.89
120.85
120.90
120.91
120.90
120.99
121.01
121.01
121.11
121.12
121.13
121.15
121.13
121.12
121.08
121.07
121.05
121.08
121.07
121.08
121.16
121.18
121.31
121.29
121.36
121.46
121.51
121.55
121.86
121.98
36.34 122.18
SPEED
(km/day)
6.98
17.61
3.38
22.82
15.97
11.56
36
11.12
18.52
19.58
14.14
5.33
18.69
8.22
19.08
3.36
8.48
9.89
12.97
28.19
13.89
17.10
24.93
26.51
20.84
14.28
20.44
13.35
30.24
28.20
27.62
34.81
35
31.75
44.23
32.39
34
122
121
NDBC Buoy 46011
03)
10
1111
1
I
1
1
1
1
I
I
1
1
I
1-1
I
1
I
I
I
CO I.-
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0
E
co
co
.c <
0
-10
MMIIM
1
1
1
1
I
180
28 Jun
I
I
I
III II
I
190
8 Jul
I
I
I
I
I
I
II
200
18 Jul
DRIFTER 6
DRIFTER 6
TIME
(cloys)
188.76
189.4.3
189.73
190.34
190.57
190.81
191.38
191.62
191.82
192.32
192.80
192.82
193.33
193.64
193.84
194.32
194.88
194.85
195.37
195.84
195.81
196.32
198.84
196.82
197.34
197.79
198.39
198.62
198.82
199.35
199.59
199.79
200.36
201.60
202.46
lelTeg
t2:19
34.86
34.86
34.67
34.67
34.67
34.63
121.01
34.81
121.03
121.00
120.98
121.00
120.97
120.94
120.97
120.95
120.93
120.97
121.01
121.00
121.20
121.23
121.21
121.29
121.25
121.18
121.17
121.11
121.15
121.17
121.16
121.23
121.26
121.28
121.41
121.35
121.22
34.60
34.56
34.51
34.54
34.50
34.48
34.51
34.47
34.38
34.39
34.35
34.32
34.41
34.42
34.48
34.01
34.64
34.82
34.64
34.62
34.63
34.65
34.83
34.66
34.87
34.72
35.01
35.04
121.03
121.01
121.04
121.02
121.01
?Icrn/daY)
3.10
9.29
5.56
7.56
19.07
3.87
12.12
24.89
10.39
14.02
23.73
7.02
14.26
36
26.01
23.25
10.88
25.89
36.05
38.66
13.07
19.95
43.25
51.97
4.04
11.55
6.54
5.70
9.40
12.85
18.39
13.87
22.62
25.80
14.84
35
34
122
121
NDBC Buoy 46011
III III! I
I
I
0
1
180
28 Jun
190
8 Jul
1
1
1
1
I
I
1
I
200
18 Jul
1
DRIFTER
'TIME
(days)
194.84
194.80
195.29
195.55
195.78
196.28
195.58
196.79
197.30
197.71
198.37
198.59
198.80
199.32
199.55
199.76
200.32
201.55
202.38
DRIFTER 7
7
LAT
SPEED
LON
(deg N) (deg W) (km/day)
33.13
35.13
35.17
35.20
35.19
35.26
35.33
35.33
35.33
35.30
35.30
35.33
35.37
35.44
35.54
35.80
33.72
36.05
38.24
120.83
120.86
120.89
120.87
120.88
120.95
120.92
120.88
120.92
120.92
121.03
121.08
121.13
121.25
121.29
121.35
121.57
121.83
122.10
16.83
9.09
18.48
5.24
19.86
24.78
14.07
8.19
36
7.54
15.60
26.55
29.84
26.14
50.71
37.54
43.25
34.88
39.40
35
34
122
121
NDBC Buoy 46011
T
I
1
1
1
1
1
1
1
11111
I
!TIMM.
-10
ININNIEND
10
u)
E°
co c
0
A
Wt.
-0 0
-10
1
1
1
1
1
28 Jun
1
1
1
1
1
1
1
190
8 Jul
1
1
1
1
I
1
200
18 Jul
DRIFTER
TIME
(days)
194.64
194.80
195.30
195.55
195.78
196.29
196.59
DRIFTER 8
8
LAT
LON
SPEED
(deg N) (deg W) (km/day)
35.08 120.89
35.07 120.91
11.64
35.13 120.90
13.89
35.12 120.88
9.56
35.14 120.89
8.80
35.24 120.95
24.43
35.30 120.90 29.27
JULY 1984
1
1
1
1
1
1
50 101
36
=MIS
35
34
I
122
121
NDBC Buoy 46011
1
I
I
I
I
1
I
1
I
I
I
=.m.
180
28 Jun
190
8 Jul
200
18 Jul
DRIFTER
9
TINE
LAT
(days)
194.86
194.81
195.32
195.58
195.79
196.30
196.60
196.81
197.32
197.73
198.38
198.81
198.81
199.33
199.57
199.77
200.34
201.57
202.42
DRIFTER 9
SPEED
LON
(deg N) (deg W) (km/day)
34.76 121.25
34.76 121.25
34.78 121.26
34.82 121.22
34.82 121.23
34.86 121.22
34.90 121.22
34.89 121.17
34.95 121.13
34.99 121.11
35.06 121.09
35.06 121.09
35.10 121.12
35.19 121.13
35.22 121.12
35.27 121.15
35.39 121.26
35.89 121.58
35.94 121.74
1.93
8.07
20.66
4.76
8.53
36
18.11
22.59
14.86
12.47
11.99
1.48
23.09
19.02
14.34
29.33
28.55
35.27
37.81
35
34
122
121
NDBC Buoy 46011
1
1
I
1
1-
I
1
-I
1
1
U
1
1
1
1
I
1
II
1
111111
-10
180
28 Jun
II
1
1
1
1
1
1
1
190
8 Jul
1
200
18 Jul
DRIFTER
TIME
(days)
DRIFTER 10
10
LT
LON
SPEED
(deg N) (deg W) (km/day)
194.71
34.54
194.83
195.33
195.60
195.80
34.51
34.45
34.52
196.31
34.51
34.49
196.62
196.82
197.33
197.79
198.40
198.63
198.83
199.38
199.60
199.79
200.37
201.62
202.53
34.58
34.56
34.48
34.42
34.36
34.35
34.33
34.34
34.34
34.32
34.27
34.42
34.44
121.08
121.02
121.09
121.11
121.07
121.15
121.15
121.09
121.20
121.28
121.42
121.43
121.47
121.58
121.59
121.63
121.59
121.61
121.79
38.46
17.48
28.46
20.29
14.58
27.67
29.55
30.64
15.82
25.57
5.74
21.88
19.93
5.25
20.00
36
11.91
13.97
18.50
35
34
122
121
NDBC Buoy 46011
I
I
180
28 Jun
I
I
I
I
II 11-1-I
Ii
I
I
190
8 Jul
I
i
I
I
I
i !III!
I
200
18 Jul
I
I
DRIFTER
TIME
(days)
194.71
194.83
195.34
195.61
195.82
196.33
196.65
196.84
197.35
197.80
198.41
198.64
198.83
199.37
199.61
199.80
200.38
201.62
202.51
DRIFTER 11
11
(AT
LON
SPEED
(deg N) (deg W) (kin/day)
34.52
34.48
34.34
34.38
34.30
34.29
34.34
34.29
34.25
34.24
34.24
34.26
34.25
34.25
34.27
34.26
34.28
34.37
34.45
120.84
120.84
120.95
120.98
120.97
121.12
121.10
121.09
121.18
121.18
121.13
121.11
121.11
121.17
121.19
121.18
121.24
121.42
121.58
34.02
36.08
10.81
30.91
28.59
16.74
28.56
19.22
4.89
8.28
11.36
9.20
36
9.67
13.79
8.75
9.79
15.71
19.37
35
34
122
121
NDBC Buoy 46011
1
I
I
I
I
I
1
I
!Ill! 11111
01111111M
co 0
E
.4-0
co
10
11.1
0
co c
-10
I
I
11111111111111111
180
190
28 Jun
8 Jul
1
1
I
1
1
I 11(1
200
18 Jul
DRIFTER 12
DRIFTER 12
TIME
LAT
(days)
LON
SPEED
(deg N) (deg W) (km/day)
194.71
194.84
195.35
195.62
195.84
198.37
198.67
196.85
197.37
197.82
198.46
198.68
198.87
199.39
199.64
199.82
199.83
200.42
34.54
34.54
120.67
120.68
120.74
120.71
120.68
120.66
120.62
120.62
120.65
120.65
120.66
120.87
120.69
120.71
120.71
120.88
120.72
120.77
34.61
34.66
34.65
34.65
34.68
34.69
34.74
34.72
34.65
34.63
34.59
34.57
34.57
34.56
34.83
34.48
14.09
18.47
22.64
11.94
36
3.64
17.14
4.87
11.92
5.87
10.93
14.91
20.59
6.90
0.88
14.14
sop op
70.32
35
34
122
121
NDBC Buoy 46011
1
41)
1
1
10
I1
1
1
1
I
1
1
1
'N. 0
E
c
0
-10
1111112
co 0
E
10
0 ..itIPM111
co
-0 o
-10
1
1
1
180
28 Jun
1
1
I
(III IJIIIIIIIII1IIII
190
8 Jul
200
18 Jul
DRIFTER
TIME
(days)
194.72
194.86
195.38
195.65
195.84
196.38
196.68
196.86
197.29
197.71
198.36
198.58
198.79
199.30
199.54
199.75
200.32
201.54
202.38
DRIFTER 13
13
SPEED
LON
LAT
(deg W) (km/day)
(deg N)
34.81
34.80
34.87
34.91
34.88
34.96
35.01
34.98
35.02
35.09
35.19
35.22
35.24
35.36
35.38
35.41
35.49
35.66
35.70
120.85
120.84
120.84
120.78
120.74
120.83
120.76
120.75
120.88
120.93
120.94
120.95
120.98
121.05
121.05
121.09
121.13
121.32
121.39
JULY 1984
6.25
13.32
I
26.41
25.52
22.36
28.37
I
II II
50 10i
36
15.91
25.80
22.19
18.06
11.62
21.32
29.35
7.38
28.16
16.66
20.43
10.39
35
34
I
121
122
NDBC Buoy 46011
1
I
1
I
1
1-1
1
I
I
1
I
I
I
1
1
-I
I
1
I
I
I
I
MOVII
180
28 Jun
190
8 Jul
200
18 Jul
DRIFTER
'TIME
(days)
194.73
194.87
195.39
195.66
195.84
198.38
198.68
198.88
197.29
197.70
198.35
198.57
198.79
199.29
199.54
199.74
200.31
201.54
202.35
DRIFTER 14
14
LAT
(deg N)
34.94
34.90
34.90
34.96
34.95
35.00
35.05
35.04
35.03
35.08
35.08
35.07
35.08
35.12
35.17
35.19
35.28
35.39
35.34
glg
SPEED
(km/day)
120.71
120.89
120.76
120.72
120.70
120.78
120.73
27.51
12.05
120.71
12.71
120.76
120.75
120.78
120.79
120.80
120.86
120.88
120.87
120.98
120.99
120.97
JULY 1984
30.24
11.59
15.99
24.39
50 KM
36
11.58
7.71
5.54
8.87
10.90
14.12
20.09
11.67
25.18
10.26
6.78
35
34
1
28 Jun
1
1
122
121
NDBC Buoy 46011
lit
180
I .,:tL
I
1
1
1
1
1
1
1
I
1
190
8 Jul
I
I
I
1
1
1
I
200
18 Jul
1
DRIFTER
TIME
(days)
197.83
198.48
198.68
198.87
199.43
199.65
200.43
201.66
202.33
DRIFTER 15
15
L.a4
LAT
SPEED
(deg N) (deg W) (km/day)
34.73
34.79
34.80
34.76
34.80
34.87
34.89
35.02
34.93
120.78
120.80
120.74
120.75
120.80
120.77
120.78
120.61
120.66
10.15
26.08
20.79
11.65
37.92
3.52
17.18
16.14
JULY 1984
36
35
34
50 KM
PM/WM
VIM=
122
121
NDBC Buoy 46011
I
0
CO%e
T
I
10
0
-0 0
/0
180
28 Jun
190
8 Jul
200
18 Jul
DRIFTER
TIME
(days)
197.77
198.43
198.85
198.85
199.38
199.63
199.82
DRIFTER 16
16
LAT
(deg N)
34.41
34.49
34.52
34.55
34.59
34.61
34.84
SPEED
L.ON
(deg W) (km/day)
120.83
120.94 19.95
121.01
31.85
121.01
121.07
15.62
13.89
15.48
25.59
121.10
121.06
36
35
34
122
121
NDBC Buoy 46011
1 ITTI IhIh1
I
III
001101,
I
I
1
I
I
180
28 Jun
1
1
1
1
I
190
8 Jul
200
18 Jul
DRIFTER
TIME
(days)
197.81
198.43
198.65
198.85
199.38
199.62
199.81
200.39
201.66
202.34
DRIFTER 17
17
SPEED
LON
LAT
(dog N) (dog W) (km/day)
34.46 120.73
34.49 120.87 21.82
34.52 120.93 29.89
34.56 120.94 22.55
34.63 120.98 15.22
34.68 121.01
25.31
34.71 120.98 25.80
34.74 121.00
6.55
34.92 120.84
19.14
34.85 120.78 14.75
36
IMINOMP
35
I AtL,
34
122
121
NDBC Buoy 46011
1
1
1
1
I till liii
1111111
180
28 Jun
190
8 Jul
200
18 Jul
DRIFTER
DRIFTER 18
18
TIME
LAT
(days)
(deg N) (deg W) (km/day)
197.81
198.44
198.68
198.85
199.39
199.63
199.82
200.41
201.84
202.56
SPEED
L.ON
34.47
34.55
34.58
34.60
34.67
34.70
34.69
34.71
34.84
34.68
120.68
120.79
120.80
120.80
120.83
120.79
120.77
120.82
120.68
120.83
JULY 1984
22.94
15.00
11.76
16.15
18.18
13.55
8.67
12.78
5.38
50 KM
36
35
!EMEND
34
I
122
121
NDBC Buoy 46011
1
1
1-
1
1
1
I
180
28 Jun
1
I
1
I
1
I
I
I
1
I
1
I
1
I
1
1
1
1
1
1
190
8 Jul
1
1
1
1
1
1
1
1
1
1
1
I
200
18 Jul
-1
1
CRUISE 8404, OCTOBER 1984
0/500 M
DYNAMIC HEIGHT (DYN CM)
OCTOBER 1984
37
rza
rn
c4
0
Cx3
10 20 30 40 50
EE?)
rr, 0
CURRENT SPEED (CM/S)
36
35
.9aa
92..7
34
1
123
122
1
121
120
0/500 M
DYNAMIC HEIGHT DYN CM)
OCTOBER 1984
SNAPSHOT 2
35
0
v2ig
10 20 30 40 50
CURRENT SPEED (CM/S)
34
121
120
ta
i.e
14
16
2Q
OCT 1.984!
e,
w
119W
+ 37 N
145
35°N _
,4
/
,
/
z,
/5 Oct \!,/' . / \
/4 Oct //
/3 Oct //y
\ /\I/
I
0 calm
\
*.
.':..
"..-.
,''%t
J
/2 Oct
SNAPSHOT
2
\.\I
-r\
,- >i
o
0
R.
20 knots
34°
121° 30'
// Oct
I
\
121°W
.*
1
120°30'
Table 3
CRUISE 8404 - OCTOBER 1984
OBS
RELEASE
LAT
RELEASE
LON
1
18
34.88
120.71
278.51 ( 4
2
21
34.81
120.83
278.52 ( 4
3
18
34.66
121.01
278.52 ( 4
4
19
34.56
121.14
278.53 ( 4
5
18
34.53
120.98
278.53 ( 4
6
17
34.52
120.82
278.53 ( 4
7
12
34.54
120.68
278.54 ( 4
8
19
34.99
120.95
283.69
(
9
9
18
34.83
121.07
283.70 (
9
10
16
34.69
121.24
283.71 (
9
11
15
34.55
121.14
283.72
(
9
12
19
34.66
120.98
283.72 (
9
13
13
34.78
120.81
283.72 (
9
14
18
34.84
120.70
283.74 (
9
15
13
35.14
120.84
283.69 (
9
16
7
35.28
120.95
287.57 (13
17
9
35.16
121.08
287.57 (13
18
10
35.06
120.90
287.58 (13
19
10
34.97
120.95
287.58 (13
20
8
34.67
121.26
287.59 (13
21
8
34.33
120.42
287.66 (13
22
8
34.41
120.40
287.66 (13
1
34.86
120.71
287.55 (13
DRIFTER
NUMBER
NUMBER
LAST OBS
TIME
RELEASE
TIME
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
287.05 (13
290.43 (16
287.05 (13
288.43 (14
287.05 (13
286.05 (12
282.01 (
8
292.42 (18
291.55 (17
289.72 (15
290.44 (16
292.43 (18
289.77 (15
291.58 (17
288.52 (14
290.33 (16
292.40 (18
292.39 (18
292.40 (18
291.52 (17
291.59 (17
291.57 (17
287.55 (13
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
Oct.)
CRUISE 8404
DRIFTERS
1
35
34
33
121
120
CRUISE 8404
DRIFTERS 8
-
15
35
34
33
121
120
CRUISE 8404
DRIFTERS 16
22
35
34
33
121
120
CRUISE 8404
DRIFTERS 1 - 22
35
34
33
121
120
CRUISE 8404
DRIFTERS 1
-7
35
34
33
121
120
CRUISE 8404
DRIFTERS 8 - 15
35
34
33
121
120
CRUISE 8404
DRIFTERS 16
-
22
35
34
33
121
120
DRIFTER
TIME
(days)
278.52
278.68
279.00
279.44
279.66
280.01
280.38
280.71
281.01
281.44
281.72
282.02
282.85
283.01
284.05
285.06
286.06
287.05
DRIFTER 1
1
LON
LAT
SPEED
(deg N) (deg W) (km/day)
34.88
34.83
34.75
34.70
34.87
34.57
34.52
34.50
34.48
34.47
34.42
34.34
34.19
34.10
120.71
120.68
120.68
120.69
120.67
120.67
120.70
120.69
120.72
120.73
120.68
120.69
120.68
120.89
120.75
120.48
120.39
120.25
33.91
33.86
33.61
33.35
38.22
26.36
13.18
19.70
31.44
17.08
4.75
12.83
3.81
24.84
29.00
27.33
28.91
20.46
24.93
29.11
31.49
33
120
121
NDBC Buoy 46011
1
o
gl)
a)
1
1
I
I
I
1
1
1
1
1
1
1
10
0
E
tja)
C4C
10
(1)°
V) Ø
L.
°
-0 0
-10
270
26 Sep
280
6 Oct
290
16 Oct
DRIFTER
TIME
(days)
DRIFTER 2
2
LAT
LON
SPEED
34.81
120.83
120.82
120.79
120.83
120.79
120.78
120.82
120.77
120.74
120.81
120.84
120.83
120.78
120.79
120.75
120.87
120.62
120.59
120.39
120.29
120.28
13.58
11.95
15.13
13.73
27.67
10.76
15.98
21.27
19.22
12.36
9.68
16.43
29.60
21.13
12.71
15.33
18.30
23.62
43.88
26.10
(deg N) (deg W) (km/day)
278.52
278.69
279.01
279.40
279.67
279.97
280.35
280.66
280.97
281.40
281.66
281.97
282.58
282.97
284.01
285.02
286.02
287.02
288.44
289.45
290.43
34.83
34.85
34.88
34.89
34.81
34.81
34.80
34.75
34.89
34.69
34.66
34.58
34.48
34.29
34.19
34.06
33.89
33.64
33.25
33.02
OCTOBER 1984
I
35
I
I
I
I
50 Isat
34
33
121
120
NDBC Buoy 46011
41110
()
10
CO
E
0
%eFfi
-0 0
"§-
-
10
270
26 Sep
280
6 Oct
290
16 Oct
DRIFTER
3
TIME
LAT
(days)
278.52
278.70
279.01
279.41
279.68
279.97
280.36
280.67
280.97
281.41
281.71
282.02
282.80
282,99
284.03
285.04
286.04
287.05
DRIFTER 3
LON
SPEED
(deg N) (deg W) (km/day)
34.66
34.67
34.64
34.64
34.61
34.55
34.49
34.47
34.41
34.29
34.13
34.01
33.89
33.79
33.60
33.54
33.40
33.17
121.01
120.97
120.98
120.92
120.91
120.91
120.93
120.92
120.91
120.83
120.81
120.85
120.87
120.58
120.54
120.41
120.28
120.43
OCTOBER 1984
21.60
10.60
7.85
12.79
21.76
17.23
7.35
23.57
33.71
52.91
52.98
38.21
36.61
19.68
13.69
19.57
28.64
I
35
II
I
50 KM
ammo
34
33
I
I
120
121
NDBC Buoy 46011
I
I
1
I
I
II TI
I
II-III
mom=
270
26 Sep
280
6 Oct
I
290
16 Oct
I
DRIFTER
4
TIME
[AT
(days)
281.98
282.59
282.98
284.02
285.03
286.03
287.03
288.43
LON
SPEED
(deg N) (deg W) (km/day)
278.53
278.70
279.02
279.41
279.68
279.98
280.36
280.67
280.98
281.41
281.67
DRIFTER 4
34.56
121.14
121.14
121.17
121.15
121.10
121.08
121.03
120.97
121.01
120.99
120.96
120.96
120.93
120.99
121.06
121.05
121.02
120.96
120.94
34.51
34.49
34.45
34.43
34.41
34.38
34.34
34.30
34.29
34.27
34.23
34.11
33.99
33.83
33.77
33.74
33.60
33.42
OCTOBER 1984
30.90
9.39
10.46
19.82
10.40
14.65
21.53
111111
35
50 KM
19.32
6.17
13.05
14.76
22.70
35.93
18.56
6.77
3.96
16.50
14.47
34
IMMIM
33
MOM=
121
NDBC Buoy 46011
11111111
120
liii
MINIO
.1:18
-10
0
(i)
0
CO%.
o0
CO
-10
1111 I 1111111
270
26 Sep
1
1111111
280
6 Oct
290
16 Oct
DRIFTER
TIME
(days)
278.53
278.72
279.03
279.42
279.69
279.98
280.36
280.68
280.98
281.42
281.68
281.99
282.81
282.99
284.03
285.05
286.05
287.05
DRIFTER 5
5
I,AT
(deg N)
34.53
34.51
34.49
34.46
34.38
34.27
34.13
34.06
33.99
33.88
33.88
33.85
33.72
33.65
33.53
33.43
33.37
33.16
LON
SPEED
(deg W) (km/day)
120.98
120.96
120.98
120.90
120.84
120.82
120.87
120.88
120.82
120.74
120.62
120.54
120.49
120.47
120.43
120.49
120.52
120.52
OCTOBER 1984
16.27
7.50
18.54
40.39
II50IIII
KM
35
42.51
41.59
25.04
31.53
33.39
42.61
25.68
24.67
20.18
13.10
12.29
7.70
22.80
34
33
120
121
NDBC Buoy 46011
I
I-
1
1
1
1
1
1
1
1
1
I
1
I
1
1
011111
1111
1111.
110
!NM
270
26 Sep
280
6 Oct
290
16 Oct
DRIFTER
TIME
(days)
278.53
278.73
279.03
279.43
279.70
279.99
280.37
280.68
280.99
281.43
281.69
281.99
282.61
282.99
284.03
285.05
286.05
DRIFTER 6
6
LON
LAT
SPEED
(deg N) (deg W) (km/day)
34.52 120.82
34.49 120.79 26.80
34.36 120.76 47.13
34.22 120.79
39.32
34.13 120.78 37.39
34.06 120.76
29.54
33.98 120.76 21.90
33.95 120.65 35.39
33.92 120.56 29.11
33.84 120.50 22.74
33.82 120.48 18.36
33.75 120.43 25.20
33.62 120.44 24.21
33.50 120.42 33.29
33.37 120.46 14.97
33.26 120.46 11.91
33.23 120.57 11.17
35
34
33
121
120
NDBC Buoy 46011
1
1
1
I
I
I
10
Cai
Ii
I
I
Ii'
1
Ca I-
o
cn
0
C<
-10
270
26 Sep
280
6 Oct
290
16 Oct
DRIFTER
DRIFTER 7
7
"MAE
LAT
(days)
(deg N)
278.34
278.73
279.04
279.43
34.54
34.55
34.54
279.71
34.47
280.03
280.38
280.70
281.00
281.43
281.71
282.01
34.51
34.41
34.29
34.17
34.08
34.00
34.01
33.98
LON
SPEED
W) (km/day)
120.88
120.70
120.73
120.75
120.74
120.75
120.78
120.78
120.78
120.71
120.84
120.81
OCTOBER 1984
10.94
9.54
11.13
15.15
24.74
35.12
40.40
33.39
24.09
22.88
18.17
1
1
35
1
1
1
1
50 KM
34
33
120
121
NDBC Buoy 46011
I
CD°
(i)
0
I
1
I
1
1-
1
1
1
1
I
1-
I
1
1
1
1
1
1
1
10
N... 0
E
0
,(1) g
C
-10
Ts)
10
0
°
0
C
-0 0
-10
270
26 Sep
280
6 Oct
290
16 Oct
1
1
1
DRIFTER 8
DRIFTER 8
TIME
(days)
283.69
283.97
284.40
284.66
284.96
285.55
285.98
286.39
288.69
288.98
287.59
287.98
288.39
288.75
289.50
289.70
290.36
291.50
292.42
LAT
LON
SPEED
(deg N) (deg W) (km/day)
34.99
34.97
34.97
34.98
34.97
34.99
34.93
34.90
34.87
34.81
34.73
120.96
120.97
120.99
120.98
120.98
121.00
120.99
121.01
121.02
121.02
121.08
121.05
121.06
121.02
34.61
34.55
34.50
34.29 121.01
34.24 120.98
34.10 120.97
33.84 120.99
33.71 121.03
OCTOBER 1984
11.71
4.39
5.87
4.38
5.76
17.50
9.62
9.63
24.47
15.23
35.34
17.04
19.09
30.19
35.02
23.42
25.09
I
35
18.41
I
I
I
I
50 KM
=11.1.
34
33
121
NDBC Buoy 46011
1
1
1
1
1-
1
1
1
1
1
1-
1
I
1111127011111111111
26 Sep
280
6 Oct
I
I
120
ill
11111
1
290
16 Oct
I
I
DRIFTER
71ME
(days)
283.70
283.98
284.42
284.67
284.98
285.56
285.97
286.40
286.74
287.08
287.82
288.00
288.41
288.77
289.43
289.73
290.45
291.55
DRIFTER 9
9
LON
LAT
SPEED
(deg N) (deg W) (km/day)
34.83
34.76
34.70
34.68
34.66
34.59
34.49
34.44
34.40
34.31
34.17
33.98
33.85
33.75
33.59
33.52
33.42
33.33
121.07
121.06
121.07
121.05
121.05
121.07
121.05
121.01
120.97
120.94
120.88
120.84
120.88
120.85
120.79
120.74
120.74
120.60
OCTOBER 1984
29.32
13.41
13.39
35
6.83
13.12
28.89
17.52
15.56
29.53
30.45
56.4e
37.18
32.41
27.38
30.85
14.77
15.35
50 KM
MINM
4c3
34
33
120
121
NDBC Buoy 46011
1
1
1
1
1
1I
1-
1
270
26 Sep
1
1
1
1
F
1
1
I
1
1
1
1
1
I
1
1
1
1
I
1
I
I
280
6 Oct
1
1
I
1
1
1
1
I
1
290
16 Oct
1
i
1
1
DRIFTER
TINE
(days)
283.71
283.98
284.43
284.67
284.98
285.57
285.98
286.41
288.71
287.00
287.81
287.99
288.40
288.78
289.42
289.72
DRIFTER 10
10
LAT
(deg N)
34.89
34.81
34.53
34.48
34.44
34.41
34.33
34.30
34.27
34.24
LON
SPEED
(deg W) (km/day)
121.24
121.25
121.27
121.32
121.33
121.36
121.38
121.35
121.34
121.35
34.20 121.28
34.12 121.25
34.07 121.28
34.02 121.24
33.85 121.39
33.81 121.44
OCTOBER 1984
34.52
19.31
30.68
15.17
7.09
1
35
1
I
1
1
1
50 KM
20.41
10.33
11.25
12.59
11.42
25.60
13.72
16.20
35.35
21.74
34
33
121
120
NDBC Buoy 46011
III
1
0
10
^
CO
E _g
%""'#TO
0
CO C
-0 0
-10
It 11111 t
270
26 Sep
1
1
1
1
1
280
6 Oct
,I
I
I
I
I
I
I
II
290
16 Oct
1
DRIFTER
TIME
(days)
283.72
283.98
284.44
284.68
284.99
285.58
285.98
286.43
286.73
287.01
287.83
288.01
288.42
289.44
290.44
DRIFTER 11
11
LAT
WEED
LON
(deg N) (deg W) (km/day)
34.55
34.47
34.44
34.42
34.38
34.35
34.27
34.10
33.97
33.84
33.72
33.82
33.57
33.28
33.12
\-)\1OCTOBER
121.14
121.14
121.12
121.10
121.10
32.66
10.05
12.80
121.03
120.94
120.89
120.88
120.91
120.96
120.93
120.88
120.91
120.94
12.50
30.50
41.85
48.99
52.88
23.23
28.48
18.79
31.45
18.35
1984
1
35
11.53
34
50 KM
11.0
33
120
121
NDBC Buoy 46011
I
1
I
I
i
i
1
1-
1
1
1
1
1
I
T
1
I
11
1
1
1
1
1
1-
1
1
Oft
IONION
1
270
26 Sep
280
6 Oct
1
1
1
1
1
1
I
II
290
16 Oct
=MOM.
1
1
DRIFTER
TIME
(days)
283.72
283.99
284.45
284.68
285.00
285.59
288.00
286.45
286.75
288.99
287.88
288.04
288.49
288.80
289.39
289.70
290.37
291.53
292.43
DRIFTER 12
12
LAT
(deg N)
34.87
34.64
34.87
34.89
34.72
34.79
34.74
34.71
34.87
34.62
34.58
34.45
34.39
34.32
34.19
34.13
33.95
33.76
33.80
LON
SPEED
W) (km/day)
120.98
120.98
120.96
120.95
120.98
120.93
120.94
120.97
120.94
120.98
120.92
120.91
120.90
120.84
120.82
120.79
120.87
OCTOBER 1984
9.01
8.41
7.42
10.74
13.89
12.64
10.90
14.24
24.88
8.45
37.45
15.70
31.68
23.68
25.24
120.77
32.41
19.11
120.73
20.72
111111
35
50 KM
34
33
121
120
NDBC Buoy 46011
IIIIIIIJIIIIIIJI
111 11
0
MM.=
270
26 Sep
280
6 Oct
290
16 Oct
DRIFTER
TIME
(days)
283.72
284.00
284.46
284.69
285.01
285.60
286.45
286.77
287.69
288.05
288.50
289.52
289.77
DRIFTER 13
13
SPEED
LON
LAT
(deg N) (deg W) (km/day)
34.78
34.77
34.82
34.78
34.78
34.82
34.77
34.72
34.84
34.57
34.50
34.29
34.24
OCTOBER 1984
120.81
120.82
120.79
120.77
120.79
120.75
120.80
120.78
120.79
120.79
120.80
120.71
120.66
7.89
13.51
I
18.10
7.05
9.79
35
I
I
III
50 KM
8.04
18.39
9.20
21.87
17.30
23.92
31.98
34
33
120
121
NDBC Buoy 46011
I
0
CD Q
I
I
I
1
10
1-
I
1
I
I
T
1
I
I
Ii
1
h-
0
E
0
it3(n OC
<
-10
Mall
11111
-^
270
26 Sep
280
6 Oct
290
16 Oct
DRIFTER
TIME
(days)
283.74
284.00
284.47
284.70
285.01
285.61
288.01
286.46
288.77
287.09
287.67
288.03
288.46
288.78
289.47
289.74
290.38
291.58
DRIFTER 14
14
LON
LAT
(deg N) (deg W)
34.84 120.70
34.79 120.70
34.79 120.72
34.76 120.67
34.71 120.e8
34.74 120.69
34.87 120.72
34.59 120.69
34.52 120.67
34.48 120.63
34.35 120.62
34.21 120.68
34.08 120.68
33.97 120.65
33.79 120.62
33.74 120.59
33.84 120.49
33.30 120.12
SPEED
(km/day)
OCTOBER 1984
\-)\
23.03
3.77
25.23
18.30
I
35
5.41
I
I
I
I
50 KM
18.41
21.09
25.62
25.03
21.58
43.95
31.10
40.13
28.49
25.50
22.20
42.59
34
33
121
120
NDBC Buoy 46011
1
I
1
I
1
1
1
1
1
1
1
WINIVINO
270
26 Sep
Lill
280
6 Oct
1
1
1
1
I
290
16 Oct
I
DRIFTER
TIME
(days)
283.69
283.96
284.40
284.65
284.96
285.55
285.95
286.38
286.68
288.97
287.55
288.06
288.52
DRIFTER 15
15
LON
LAT
SPEED
(deg N) (deg W) (km/day)
35.14
35.07
35.09
35.10
35.12
35.17
35.14
35.13
35.08
35.01
34.92
34.74
34.61
120.84
120.80
120.81
120.78
120.78
120.71
120.66
10.55
3.80
14.80
7.31
15.05
21.45
30.83
18.87
41.43
120.64
32.23
120.86
120.85
120.78
120.73
120.70
O\CTOBER 1984
31.15
7.18
1
1
35
1
1
1
1
50 KM
34
33
120
121
NDBC Buoy 46011
1111111 1
1
1-1
I
1-
1
1
1
1
1
1
1
1
1
INNIMMID
MON
270
26 Sep
280
6 Oct
290
16 Oct
1
I
1
DRIFTER
TINE
(days)
287.57
287.96
288.36
288.73
289.36
289.67
290.33
DRIFTER 16
16
LAT
LON
SPEED
(deg N) (deg W) (km/day)
35.28
35.14
33.08
35.02
34.81
34.72
34.67
120.94
120.87
120.84
120.72
120.67
120.64
120.62
OCTOBER 1984
41.86
19.43
34.89
37.92
33.35
9.42
1
1
1
35
1
1
1
50 KM
34
33
121
120
NDBC Buoy 46011
I
I
I
I
I
1-
I
1-1
111111
1
I
1
11=1
I
I
I
I
I
i
270
26 Sep
i
i
II II
I
I
1
280
6 Oct
1
1
1
I.
1
290
16 Oct
I
I
I
DRIFTER
-NE
(days)
287.57
287.96
288.37
288.73
289.36
289.68
290.34
291.46
292.40
DRIFTER 17
17
LAT
(deg N)
35.16
35.03
34.97
34.92
34.77
34.69
34.59
34.47
34.29
LON
SPEED
(deg W) (km/day)
121.07
121.03
121.04
121.02
121.05
121.03
121.09
121.00
120.92
OCTOBER 1984
40.18
15.12
18.34
26.15
28.60
I
35
I
I
I
I
I
50 KM
18.31
13.74
22.91
34
33
MS.
120
121
NDBC Buoy 46011
I
I
I
I
I
1
1
1
I
LI I
10
CA a)
%§,.50
0
13
-10
270
26 Sep
280
6 Oct
290
16 Oct
I
I
"ME
(days)
287.58
287.97
288.37
288.74
289.37
289.68
290.34
290.71
291.45
292.39
DRIFTER 18
18
DRIFTER
SPEED
LOU
LAT
(deg N) (deg W) (km/day)
35.08 120.90
34.98 120.87 28.72
34.93 120.92 13.80
34.89 120.87
16.93
34.73 120.88 27.71
34.68 120.82 25.53
34.51 120.87
28.88
34.47 120.89
12.47
34.48 120.88
2.75
34.38 120.89
11.34
"III
OCTOBER 1984
35
50 KM
34
33
NNW.
121
120
NDBC Buoy 46011
1
1
1
T
-1
I
I
I
1
1
0
-10
10
0
-10
I
I
I
I
1
270
26 Sep
1
II
1
280
6 Oct
290
16 Oct
DRIFTER
TIME
(days)
287.58
287.97
288.38
288.74
289.38
289.69
290.35
290.71
291.45
292.40
DRIFTER 19
19
LAT
(deg N)
34.97
34.83
34.80
34.72
34.60
34.58
34.51
34.48
34.34
34.15
LON
SPEED
(deg W) (km/day)
120.95
120.93 40.68
120.92
8.28
120.90 25.34
120.92 20.22
120.91
7.26
120.96 13.36
120.98
11.30
120.88 24.98
120.84 21.73
OCTOBER 1984
1
35
1
II II
50 KM
34
33
120
121
NDBC Buoy 46011
I
Ø
0
10
II
1
1
I
1
1
1
1
1
1
mIONIOWN
0
(/) co
-10
0
.szt,
voc
10
0
IMMIMON
-10
270
26 Sep
280
6 Oct
290
16 Oct
DRIFTER
TIME
(dap)
287.59
287.98
288.39
288.76
289.40
289.71
290.48
291.52
DRIFTER 20
20
LAT
LON
SPEED
(deg N) (deg W) (km/day)
34.87 121.26
34.47 121.29
57.87
34.38 121.24
32.47
34.25 121.22
31.68
34.01 121.17
42.61
33.89 121.15
44.18
33.76 121.35 31.37
33.69 121.33
6.98
OCTOBER 1984
1
1
35
1
1
1
1
50 KM
34
33
121
120
NDBC Buoy 46011
1
I
1
IJ
1
II
270
26 Sep
I
1
1
1
1
1
1
I
1
1
1
1
1
280
6 Oct
1
1
1
1
1
1
1
1
1
1
1
1
I
1
290
16 Oct
1
1
1
I
DRIFTER
TIME
(days)
287.68
288.03.
288.47
288.79
289.55
289.76
290.40
291.59
DRIFTER 21
21
(AT
LON
SPEED
(deg N) (deg W) (km/day)
34.33
34.18
34.12
34.08
33.94
33.91
33.87
33.76
120.42
120.43
120.35
120.30
120.20
120.18
120.11
120.10
OCTOBER 1984
44.68
23.32
19.71
35
23.48
19.92
11.29
9.83
34
33
=WM.
120
121
NDBC Buoy 46011
1
1
I
1
1
I
I
1
1
1
1-
I
1
1
T
1
1
IIMN
270
26 Sep
280
6 Oct
290
16 Oct
DRIFTER
TIME
(days)
287.06
288.03
288.48
288.79
289.54
289.75
290.41
291.57
DRIFTER 22
22
LAT
LON
SPEED
(deg N) (deg W) (km/day)
34.41
120.40
120.44
120.45
120.38
120.25
120.25
120.23
34.27
34.14
34.09
33.83
33.78
33.86
33.27
120.01
OCTOBER 1984
42.20
33.99
27.79
40.88
28.99
20.36
41.23
35
50 Km
34
33
121
120
NDBC Buoy 46011
1
II
1
1
1
1
1
I
1
1
1
1
270
26 Sep
280
6 Oct
1
1
1
1
290
16 Oct
CRUISE 8501, JANUARY 1985
0/500 M
DYNAMIC HEIGHT (DYN CM)
77.1
JANUARY 1985
79.2
so.s
37
80.7
80
80.0
80.9
Hrn
10 20 30 40 50
0
a CURRENT SPEED (CM/S)
36
80.9
co
a
35
85.0
82.
82.1
34
123
122
121
120
DYNAMIC HEIGHT (DYN CM)
0/500 M
35
34
121
120
SST 4C)
IA
36 4
I9
11,9 11
+ 37
4
io
11in NC"
t
r
'
.0%
4
iiç'.. ,
N
SNAPSHOT
35°N
V
28 Jan
\.
41 /
27 Jan
0 calm
\x
26 Jan
3401
......__>
20 knots
121°30'
24 Jan
I21°W
41
/
\
0
41
1
120°30'
Table 4
CRUISE 8501 - JANUARY 1985
DRIFTER
NUMBER
NUMBER
OBS
1
1
31
2
22
3
24
4
40
5
23
6
33
7
26
8
18
2
9
22
2
10
27
11
27
12
18
13
25
3
3
14
10
15
10
16
27
17
27
18
27
19
28
RELEASE
LAT
RELEASE
LON
35.13
35.04
34.94
34.82
34.57
34.68
34.77
34.87
34.94
34.98
34.60
34.64
34.68
34.74
34.41
34.30
34.27
34.36
34.72
34.65
34.86
34.88
34.90
34.92
120.89
121.04
121.17
121.31121.13
121.00
120.87
120.72
121.23
121.24
121.20
121.28
121.07
120.89
120.39
120.35
120.41
120.40
120.69
120.79
120.92
120.89
120.85
120.81
RELEASE
TIME
19.70 (19 Jan.)
19.71 (19 Jan.)
19.71 (19 Jan.)
19.71 (19 Jan.)
19.72 (19 Jan.)
19.73 (19 Jan.)
19.73 (19 Jan.)
19.73 (19 Jan.)
24.01 (24 Jan.)
24.39 (24 Jan.)
24.00 (24 Jan.)
24.38 (24 Jan.)
24.00 (24 Jan.)
23.99 (23 Jan.)
23.98 (23 Jan.)
23.98 (23 Jan.)
29.98 (29 Jan.)
29.99 (29 Jan.)
29.65 (29 Jan.)
29.65 (29 Jan.)
29.64 (29 Jan.)
29.64 (29 Jan.)
29.64 (29 Jan.)
29.64 (29 Jan.)
LAST OBS
TIME
19.70 (19 Jan.)
31.03 (31 Jan.)
30.07 (30 Jan.)
27.43 (27 Jan.)
30.60 (30 Jan.)
29.03 (29 Jan.)
30.39 (30 Jan.)
28.67 (28 Jan.)
31.05 (31 Jan.)
24.69 (24 Jan.)
31.39 (31 Jan.)
24.68 (24 Jan.)
33.50 ( 2 Feb.)
33.49 ( 2 Feb.)
30.00 (30 Jan.)
33.45 ( 2 Feb.)
30.99 (30 Jan.)
31.00 (31 Jan.)
33.46 ( 2 Feb.)
33.47 ( 2 Feb.)
33.44 ( 2_Feb.)
33.43 ( 2 Feb.)
33.43 ( 2 Feb.)
33.42 ( 2 Feb.)
36
CRUISE 8501
DRIFTERS
1
-
7
35
34
122
121
120
36
CRUISE 8501
DRIFTERS 8
-
13
24 JANUARY 1985
I
I
I
I
I
50 ECM
35
8
11
10
9
13
34
122
121
120
36
35
34
CRUISE 8501
DRIFTERS 14
- 19
36
CRUISE 8501
DRIFTERS 1 - 19
35
34
122
121
120
36
35
34
CRUISE 8501
DRIFTERS 1
-
7
36
CRUISE 8501
DRIFTERS 8 - 13
35
34
122
121
120
36
CRUISE 8501
DRIFTERS 14
-
19
35
34
122
121
120
DRIFTER
TIME
(days)
19.71
19.98
20.35
20.71
20.98
21.35
21.68
21.97
22.34
22.68
22.97
23.34
23.69
24.03
24.41
25.03
25.42
25.73
26.03
27.05
27.45
27.71
28.08
28.75
29.08
29.43
29.72
30.08
30.57
30.72
31.03
1
LAT
LON
SPEED
36
DRIFTER 1
(deg N) (deg W) (km/day)
35.04
35.05
35.13
35.24
35.30
35.38
35.41
121.04
121.08
121.12
121.13
121.12
121.11
121.10
35.47
35.49
35.53
121.11
35.56
35.60
35.58
35.57
35.52
35.49
35.47
35.45
35.35
35.34
35.32
35.29
35.28
35.26
35.24
35.19
35.12
35.05
35.01
34.99
121.19
121.18
121.17
121.17
121.11
121.09
121.04
121.04
120.93
120.93
120.93
120.94
120.94
120.97
120.97
120.93
121.13
121.14
3537 121.12
JANUARY 1985
14.90
24.80
33.48
28.08
22.75
11.75
21.22
8.12
15.92
14.57
111111
50 KM
17.31
11.80
5.81
3.50
12.78
9.07
17.83
5.56
35
14.91
3.46
7.81
10.41
1.94
120.91
9.84
6.19
22.34
22.77
120.87
120.84
120.87
17.03
31.35
11.95
34
122
121
120
NDBC Buoy 46011
0Q
0
03 L.
o
Efn
Noingp,vpipw,---
--..r.P-
---gimprelmel MPRIIIIM
mu)
§c:rt- -io
ommits
14
14 Jan
24
24 Jan
34
3 Feb
DRIFTER
2
SPEED
ledM4s)
19.71
19.98
20.38
20.71
20.97
21.36
21.68
21.97
22.34
22.68
22.97
23.35
23.70
24.04
24.43
25.04
25.41
26.03
27.04
28.04
29.04
30.07
36
DRIFTER 2
N) (deg W) (km/day)
34.94
34.98
35.04
35.13
35.19
35.31
35.36
35.44
35.51
35.57
35.82
35.69
35.74
35.77
35.81
35.81
35.81
35.79
35.80
35.79
35,79
35.70
121.17
121.18
121.19
121.21
121.22
121.21
121.21
121.22
121.24
121.30
121.34
121.44
121.52
121.57
121.64
121.72
121.78
121.83
121.88
121.92
121.97
121.96
14.58
18.28
31.09
22.68
34.66
18.16
32.35
22.97
25.43
19.82
31.84
25.86
16.98
20.32
11.84
15.55
7.06
4.52
4.07
4.34
9.78
35
34
122
121
120
NDBC Buoy 46011
'REV'
14
14 Jan
24
24 Jan
34
3 Feb
DRIFTER
MAE
(days)
19.71
19.99
20.38
20.72
20.97
21.37
21.69
21.99
22.36
22.69
22.99
23.38
23.72
24.01
24.39
24.70
25.01
25.38
25.69
28.01
26.42
28.72
27.02
27.43
SPEED
ttliwa
DRIFTER 3
36
3
W) (km/day)
34.82 121.31
34.85 121.31
34.83 121.33
34.85 121.34
34.87 121.33
34.91 121.34
34.94 121.35
34.99 121.37
35.04 121.44
35.04 121.44
35.05 121.45
35.03 121.46
34.99 121.44
34.99 121.39
34.99 121.40
35.00 121.36
35.03 121.34
35.08 121.35
35.13 121.32
35.14 121.34
35.21 121.32
35.24 121.38
35.28 121.37
35.31 121.43
JANUARY 1985
11.60
5.15
5.12
1
1
1
1
1
1
50 KM
12.51
9.27
11.68
22.23
22.40
1.32
5.89
4.52
13.97
14.73
2.22
14.13
12.50
15.20
20.13
8.64
18.44
16.75
10.05
17.77
35
34
122
120
121
NDBC Buoy 46011
1
1
1
1
1
I
1
14
14 Jan
1
I
1
1
1
1
1
IT I
I
I
1
24
24 Jan
I
34
3 Feb
DRIFTER
TIME
(days)
19.72
19.99
20.37
20.72
20.98
21.37
21.70
21.99
22.37
22.89
22.99
23.37
23.72
24.40
24.70
25.01
25.39
25.70
26.01
26.43
28.73
27.01
27.38
27.69
28.01
28.39
28.74
28.96
29.33
29.84
29.70
29.96
30.09
30.36
30.38
30.42
30.46
30.50
30.54
30.60
4
LAT
LON
SPEED
(deg N) (deg W) (km/day)
34.57 121.13
34.61 121.16
15.99
34.67 121.13
20.87
34.74 121.13
20.25
34.79 121.10
25.65
34.85 121.07
18.40
34.88 121.05
11.57
34.92 121.05
14.63
34.97 121.06
13.58
35.01 121.05
14.88
35.01 121.07
5.65
35.06 121.07
12.62
35.10 121.08
14.94
35.12 121.08
3.25
35.12 121.08
2.20
35.08 121.08
17.69
33.11 121.09
12.23
35.13 121.10
8.25
35.11 121.09
7.69
35.13 121.08
4.58
35.11 121.08
5.55
35.10 121.03
13.98
35.09 121.06
7.55
35.08 121.04
11.35
35.01 121.00
20.38
3499 121.02
7.04
34.94 120.96 21.70
34.90 120.95
21.38
34.87 120.98
11.78
34.85 120.98
9.72
34.83 120.95
30.96
34.77 120.96
28.22
34.74 120.99
26.08
34.72 121.03
15.05
34.72 121.03
15.00
34.71 121.03
18.87
34.71 121.03
15.69
34.70 121.03
15.20
34.69 121.03
20.65
34.69 121.03
20.34
36
DRIFTER 4
JANUARY 1985
1
1
1
1
1
1
50 KM
35
34
122
121
120
NDBC Buoy 46011
1
1
-A ES.......
1
14 Jan
24
24 Jan
34
3 Feb
DRIFTER
5
IDE
LAT
(days)
19.73
20.00
20.37
20.72
20.98
21.37
21.70
21.99
22.37
22.70
23.00
23.38
23.72
24.02
24.40
24.71
25.02
25.40
25.72
28.02
27.03
28.03
29.03
LON
SPEED
36
DRIFTER 5
(deg N) (deg W) (km/day)
34.68
34.70
34.74
34.78
34.83
34.88
34.91
34.95
34.99
35.04
35.06
35.13
35.19
35.20
35.28
35.33
35.38
35.43
35.47
35.49
35.54
35.52
35.55
121.00
121.00
121.01
121.00
120.98
120.97
120.97
121.00
121.02
121.08
121.07
121.11
121.14
121.17
121.24
121.30
121.32
121.41
121.47
121.50
121.67
121.71
121.69
JANUARY 1985
8.22
13.32
13.35
22.81
50 KM
14.1 0
8.27
17.49
14.27
17.20
11.57
21.48
19.78
8.85
26.00
31.13
11.35
29.25
23.82
11.15
15.84
4.87
3.57
35
111.15
34
122
121
120
NDBC Buoy 46011
w
E
10
L.
0
co
-o
c< -10
10
14
14 Jan
24
24 Jan
34
3 Feb
DRIFTER
36
8
TIME
(day.)
19.73
20.00
20.38
20.73
20.98
21.38
21.70
22.00
22.38
22.70
23.00
23.39
23.73
23.96
24.33
24.84
24.96
25.32
25.64
25.95
26.35
26.65
26.96
27.32
27.63
27.96
28.32
28.68
28.97
29.36
29.69
29.98
30.39
(deg N) glo2
34.77 120.87
34.76 120.86
34.78 120.90
34.82
34.84
34.87
34.90
34.92
34.92
34.93
34.92
34.92
34.92
120.86
120.85
120.86
120.85
120.83
120.82
120.81
120.79
120.83
120.85
34.91 120.86
34.92 120.89
34.91 120.90
34.89 120.91
34.87 120.93
34.88 120.92
34.82 120.92
34.79 120.91
34.76 120.88
34.72 120.85
34.71 120.85
34.70 120.87
34.66 120.89
34.66 120.92
34.65 120.91
34.60 120.90
34.58 120.94
34.56 120.89
34.51 120.85
34.52 120.88
DRIFTER 6
g3trikidY)
JANUARY 1985
6.53
11.39
16.14
11.62
8.71
11.50
7.86
1.70
6.76
5.08
50 KM
9.01
4.07
8.14
7.47
3.99
8.08
6.37
3.58
35
21.01
9.86
13.19
17.88
3.36
7.31
12.81
7.32
4.20
19.96
10.91
16.39
21.86
6.00
34
122
121
120
NDBC Buoy 46011
1.111411110114.11111PW-
0
-111411111riP"--
10
(1) v
E
N'"WI
al
-00
...../Mbirs...
0
-10
14
14 Jan
24
24 Jan
34
3 Feb
DRIFTER
7
TIME
LAT
(days)
19.73
20.00
20.39
20.74
21.38
21.70
22.00
22.39
22.71
23.01
23.39
23.74
23.96
24.34
24.64
24.96
25.33
25.65
25.96
28.36
26.66
26.95
27.32
27.62
28.32
28.67
U3N
DRIFTER 7
36
SPEED
(deg N) (deg W) (km/day)
34.87
34.88
120.72
120.73
120.71
120.68
120.69
120.71
120.72
120.76
120.73
120.72
120.73
120.70
120.88
120.69
120.69
120.69
120.73
120.74
120.71
120.88
120.69
120.66
120.87
120.66
120.86
120.65
34.81
34.79
34.78
34.78
34.80
34.75
34.76
34.76
34.75
34.74
34.75
34.75
34.77
34.77
34.77
34.78
34.77
34.81
34.84
34.85
34.85
34.84
34.82
34.81
Ill
JANUARY 1985
6.30
20.52
11.23
1.96
4.56
6.93
16.06
7.30
3.78
2.40
8.99
8.16
2.42
5.93
I
I
I
50 KM
35
1.99
8.02
3.90
8.22
12.19
10.64
7.63
0.97
4.10
3.37
5.29
34
I
1
1
120
121
122
NDBC Buoy 46011
I
1
1
1
I
I
I
1
I
I
1
1
1
1
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M111101.1
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1
1
1
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1
1
I
I
14
14 Jan
I
I
I
I
1
24
24 Jan
1
1
I
1
I
1
I
1
34
3 Feb
DRIFTER
'TIME
(days)
24.01
24.39
24.69
25.01
25.38
25.70
26.01
26.42
26.72
27.01
27.39
27.70
28.02
28.40
29.02
29.42
30.05
31.05
8
LAT
(deg N)
34.94
34.98
35.04
35.05
35.11
35.16
35.15
35.21
35.22
35.25
35.29
35.33
35.35
35.39
35.34
35.34
35.30
35.26
LON
SPEED
36
DRIFTER 8
(deg W) (km/day)
121.23
121.25
14.20
121.23 20.45
121.23
3.83
121.23 19.32
121.25 17.16
121.24
2.49
121.22
121.24
121.21
121.25
121.28
121.33
121.40
121.45
121.45
121.36
121.31
JANUARY 1985
I
I
I
I
I
I
50 KM
16.20
5.83
14.04
18.11
15.42
18.20
19.38
11.84
2.27
14.51
8.41
35
34
122
121
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NDBC Buoy 46011
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-10
10
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0
-10
14 Jan
24
24 Jan
34
3 Feb
DRIFTER
11ME
(days)
24.00
24.38
24.88
25.00
25.37
25.88
25.99
26.39
26.70
26.99
27.36
27.67
28.00
28.36
28.72
29.00
29.40
29.68
30.02
30.43
30.98
31.39
9
LAT
LON
SPEED
(deg N) (deg W) (km/day)
34.80 121.20
34.64 121.28 22.59
34.66 121.32
16.12
34.67 121.34
7.11
34.67 121.40 14.14
34.67 121.44 10.71
34.68 121.45
5.76
34.67 121.50 11.72
34.66 121.50
2.98
34.85 121.51
7.71
34.61 121.53
12.03
3437 121.51 12.45
34.57 121.49
8.01
34.58 121.45
8.48
34.56 121.38 19.28
34.49 121.37
27.36
34.48 121.42 10.74
34.43 121.38 24,25
34.36 121.39 22.40
34.35 121.40
4.47
34.28 121.34 19.53
34.28 121.32
5.10
36
DRIFTER 9
JANUARY 1985
IIII1
50 KM
35
34
122
121
120
NDBC Buoy 46011
10
1111141111,1
10
10
10
14
14 Jan
24
24 Jan
34
3 Feb
DRIFTER
TIME
LAT
(days)
LON
DRIFTER 10
36
10
SPEED
(deg N) (deg W) (km/day)
24.00
24.37
24.68
25.00
25.38
25.68
25.99
26.40
28.71
27.00
27.37
27.67
28.00
213.37
28.73
29,01
29.41
29.72
30.03
30.58
30.72
31.04
31.88
31.96
32.40
32.72
33.50
34.88
34.70
34.72
34.76
34.79
34.84
34.83
34.82
34.85
34.85
34.88
121.07
121.16
121.24
121.29
121.32
121.32
121.36
121.38
121.38
121.35
121.35
34.9.3 121.35
34.94 121.33
34.99 121.32
35.04 121.25
35.00 121.23
35.08 121.26
35.11 121.19
35.08 121.16
35.17 121.14
35.16 121.13
35.18 121.14
35.20 121.14
35.15 121.13
35.21 121.11
35.21 121.013
35.20 121.05
23.11
27.33
18.12
12.37
19.32
12.88
3.88
10.79
2.39
8.39
17.11
7.12
15.30
24.05
18.53
23.45
35
2.3.29
14.68
19.43
11.48
8.04
3.85
19.06
16.37
7.37
4.05
34
122
121
120
NDBC Buoy 46011
10
-1
1
1
1
1
1
I
1
1
1
1
1
1
1
1
1
I
I
I
I
1
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0
10
0
---
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-10
I
I
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1
1
I
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I
I
14 Jan
I
I
I
I
I
I
1
I
I
24
24 Jan
I
I
I
I
I
I
I
34
3 Feb
DRIFTER
11
SPEED
lidM4s)
23.99
24.37
24.87
24.99
25.38
25.68
26.00
26.40
26.71
27.00
27.37
27.68
28.01
28.38
28.73
29.02
29.42
29.72
30.04
30.58
30.72
31.04
31.84
31.95
32.40
32.72
33.49
Le4119
(unicklY)
N)
34.74
34.72
34.70
34.69
34.72
34.79
34.81
34.86
34.90
34.94
34.98
35.03
33.04
35.11
35.14
35.11
35.17
35.15
35.11
35.15
35.14
35.13
35.15
35.08
35.15
33.12
35.08
36
DRIFTER 11
120.89
120.96
121.02
121.09
121.18
121.22
121.28
121.28
121.28
121.28
121.29
121.27
121.25
121.21
121.14
121.10
121.12
121.07
121.04
121.05
121.02
121.03
121.00
120.98
120.98
120.93
120.85
18.66
19.92
18.90
23.13
2838
11.35
14.15
17.42
15.18
11.83
21.31
5.40
24.20
18.48
19.58
19.53
17.88
14.77
8.59
17.54
5.19
5.82
26.55
17.35
18.70
12.19
35
34
122
121
NDBC Buoy 46011
II
I
I
14
14 Jan
I
Fi
120
Ill
24
24 Jan
34
3 Feb
DRIFTER
11ME
(days)
23.98
24.36
24.86
24.97
25.34
25.66
25.97
26.37
26.68
28.97
27.34
27.64
27.97
28.34
28.69
28.98
29.38
30.00
36
/2
LAT
SPEED
LON
(deg N) (deg
34.41
34.40
34.41
34.38
34.38
34.39
34.37
34.30
34.21
34.18
34.10
34.08
34.06
34.04
34.04
33.98
33.96
33.88
DRIFTER 12
(km/day)
120.39
120.42
120.42
120.39
120.43
120.46
120.45
120.47
120.50
120.51
120.51
120.55
120.53
120.57
120.58
120.59
120.64
120.62
8.14
3.18
12.95
10.76
8.84
8.21
20.09
31.23
14.43
22.88
13.57
9.92
11.10
2.35
24.53
14.17
14.03
35
34
122
121
120
NDBC Buoy 46011
0
10
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0
-
11111111111111111
11111
liii
c< -10
10
Co
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=
-10
I
1
I
I
1
1
Ii
14 Jan
I
I
I
I
I
I
1
I
24
24 Jan
34
3 Feb
DRIFTER
TIME
Oar)
23.98
24.35
24.88
24.98
25.34
25.66
25.97
26.37
26.67
26.97
27.34
27.65
27.98
28.35
28.70
28.99
29.37
29.67
30.01
30.40
30.97
31.39
31.99
32.68
33.45
13
Vogl
kATeg
gnE1,1?lay)
DRIFTER 13
36
(ci
34.30 120.35
34.29 120.38
34.29 120.39
34.28 120.39
34.28 120.47
34.27 120.55
34.24 120.55
34.21
120.59
34.20 120.83
34.22 120.84
34.22 120.70
34.25 120.72
34.28 120.73
34.31 120.77
34.37 120.79
34.33 120.78
34.35 120.88
34.37 120.87
34.32 120.89
34.35 120.98
34.32 121.05
34.35 121.07
34.21 121.08
34.19 121.06
34.15 120.98
JANUARY 1985
3.96
10.33
5.21
20.22
23.39
12.09
12.13
13.08
9.53
14.50
12.78
9.62
13.44
20.27
13.91
23.11
7.09
18.51
24.54
12.09
111111
50 KM
35
9.50
25.74
4.63
10.58
34
122
121
120
NDBC Buoy 46011
1111III I
I
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MIEN
14
14 Jan
24
24 Jan
34
3 Feb
DRIFTER
TIME
14
LAT
(days)
29.65
29.97
30.47
30.69
31.01
31.40
31.69
31.98
32.67
33.46
LON
SPEED
36
DRIFTER 14
(deg N) (dog W) (km/day)
34.72 120.69
34.85 120.69
22.90
34.59 120.72
14.54
34.55 120.68
25.64
34.47 120.64
27.14
34.43 120.64
11.88
34.35 120.56
38.36
34.28 120.61
35.93
34.21 120.63
8.38
34.06 120.83
20.26
JANUARY 1985
50 KM
35
34
122
121
120
NDBC Buoy 46011
IT
IMMONIM
.c
0
-10
14
14 Jan
24
24 Jan
34
3 Feb
DRIFTER
TIME
(days)
29.85
29.97
30.48
30.69
31.01
31.42
31.69
31.98
32.69
33.47
LAT
(deg N)
34.85
34.62
34.59
34.58
34.53
34.54
34.49
34.40
34.37
34.24
SPEED
LON
DRIFTER 15
36
15
(deg W) (km/day)
120.79
120.82
120.83
120.80
120.79
120.77
12.91
6.43
19.17
11.69
5.00
29.48
36.65
3.41
19.49
120.71
120.69
120.69
120.65
35
34
120
121
NDBC Buoy 46011
1
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1
I
1
1
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1
1-
1
1
1
I
1
1
I-
1
1
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1
1
1
I
I
1
I
1
14
14 Jan
1
24
24 Jan
IIE
34
3 Feb
DRIFTER
TIME
(days)
29.84
29.70
29.98
30.09
30.34
30.37
30.42
30.46
30.50
30.54
30.58
30.62
30.67
30.71
30.75
30.97
31.03
31.09
31.38
31.44
31.82
31.72
31.97
32.01
32.38
32.68
33.44
LAT
LON
DRIFTER 16
36
18
SPEED
(deg N) (deg W) (km/day)
34.88
34.85
34.78
34.76
34.73
34.72
34.72
34.71
34.70
34.69
120.92
120.92
120.93
120.96
120.99
120.99
120.99
120.99
120.99
120.99
121.00
121.00
121.00
120.99
120.99
34.68
34.87
34.87
34.66
34.65
34.82 121.01
34.82 121.02
34.62 121.03
34.83 121.05
34.83 121.04
34.59 121.01
34.55 121.00
34.49 121.02
34.58 121.02
34.54 121.08
34.54 121.00
34.47 121.00
JANUARY 1985
23.82
30.78
21.61
19.62
18.17
16.25
23.88
24.98
21.61
27.43
17.58
17.53
15.55
18.50
18.37
17.73
13.94
8.59
14.09
31.74
37.16
27.31
303.86
50 KM
35
14.91
19.02
8.70
34
122
121
120
NDBC Buoy 46011
1
1
I
I
1
1
1
174\--.---.,,,-/*\,-,- \/----%N...,7--
I
I
I
I
I
I
1
14 Jan
1
i
I
I
I
1
I
1
24
24 Jan
1
1
1
34
3 Feb
DRIFTER
TIME
(days)
29.84
29.70
29.96
30.09
30.33
30.37
30.41
30.45
30.50
30.54
30.58
30.62
30.87
30.70
30.75
30.97
31.02
31.09
31.37
31.44
31.61
31.72
31.97
32.01
32.38
32.85
33.43
LON
LAT
DRIFTER 17
36
17
SPEED
Nog N) (deg W) (km/day)
34.138
34.88
34.79
34.78
34.75
34.75
34.74
34.73
34.72
34.72
34.71
34.70
34.69
34.69
34.68
34.65
34.85
34.65
34.65
34.65
34.80
34.57
34.50
34.49
34.55
34.53
34.48
120.89
120.88
120.91
120.92
120.95
120.95
120.95
120.95
120.96
120.96
120.96
120.96
120.96
120.96
120.96
120.98
120.98
120.99
120.99
120.98
120.96
120.96
120.96
120.96
121.00
120.93
120.83
JANUARY 1985
38.88
28.43
12.70
16.85
23.18
18.50
23.49
18.72
20.09
20.76
26.40
20.72
12.34
11.97
15.08
1
1
1
1
1
1
50 KM
35
8.11
7.69
0.96
17.38
29.35
32.24
32.78
14.11
19.51
22.50
18.71
34
122
120
121
NDBC Buoy 46011
1
1
1
1
1-
1
1
1
1
1
1
I
1
1
1
1
=IMMO
1
14
14 Jan
1
1
I
1
1
24
24 Jan
1
1
1
I
34
3 Feb
DRIFTER
UT
LON
SPEED
(deg N) (deg W) (km/day)
TIME
(days)
29.64
29.71
29.96
30.09
30.33
30.37
30.41
30.45
30.49
30.53
30.58
30.62
30.86
30.70
30.75
30.96
31.02
31.09
31.37
31.44
31.81
31.71
31.97
32.01
32.38
32.65
33.43
34.90
34.88
34.85
34.85
34.82
120.85
120.85
120.87
120.89
120.91
120.92
120.92
34.78 120.93
34.79 120.93
34.78 120.93
34.78 120.93
34.77 120.93
34.77 120.93
34.76 120.93
34.75 120.92
34.71 120.95
34.71 120.96
34.71 120.97
34.70 120.99
34.89 120.99
34.85 120.97
34.82 120.96
34.54 120.96
34.54 120.97
34.59 121.00
34.58 120.94
34.46 120.82
34.81
34.81
DRIFTER 18
36
18
21.25
15.84
14.93
14.70
23.38
27.11
68.94
24.73
21.58
18.08
14.80
17.91
20.06
25.40
21.66
21.53
11.19
8.37
12.94
29.87
32.81
33.08
17.22
15.56
22.27
20.33
35
34
122
121
120
NDBC Buoy 46011
1
10
I
I
I
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0
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-10 _
10 _
0
-10 _.....
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1
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I
I
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i
I
1
14 Jan
1
1
1
I
I
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24
24 Jan
1
34
3 Feb
DRIFTER
lect5/0
29.84
29.71
29.96
30.09
30.32
30.37
30.41
30.45
30.49
30.53
30.58
30.61
30.66
30.70
30.74
30.78
30.96
31.02
31.08
31.37
31.44
31.61
31.71
31.97
32.01
32.37
32.64
33.42
36
19
N)
34.92
34.90
34.85
34.84
34.83
34.83
34.82
34.82
W)
120.81
120.81
120.79
120.82
120.85
120.85
120.85
120.86
34.81 120.86
34.81 120.87
34.81 120.87
34.81 120.87
34.81 120.87
34.80 120.87
34.80 120.87
34.80 120.87
34.78 120.88
34.78 120.89
34.78 120.89
34.78 120.90
34.78 120.91
34.76 120.90
34.75 120.89
34.08 120.88
34.67 120.89
34.70 120.94
34.87 120.93
34.57 120.82
DRIFTER 19
tun/doh
JANUARY 1985
23.70
23.32
I
25.21
I
I
III
50 KM
8.95
16.32
10.01
14.99
20.51
19.68
9.93
2.84
6.52
7.37
3.28
12.36
11.93
35
12.07
5.44
4.03
12.82
13.29
14.86
30.17
26.63
13.38
13.82
18.39
34
122
121
120
NDBC Buoy 46011
MENEM
14
14 Jan
24
24 Jan
34
3 Feb