EPIC Graphics and Animation Gallery
EPIC data displays include line plots with overlay options,
contour plots and animations, using the Plot
Plus Graphics Package. All plots are labeled automatically
and are of publication quality. It is easy for a user to combine
several plots to form composites, such as the EPIC icon at the
top of this page. Following are some example graphics for CTD,
for time series, and for ADCP
data. The GIF is generated by m2gif.
Example
EPIC CTD gaphics
(click on image to see larger version)
Example EPIC
Time Series gaphics
(click on image to see larger version)
Example
EPIC Analysis of a combined CTD-ADCP section
in the Bering Sea in August 1991.
(click on image to see larger version)
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(above left) Geostrophic
velocity relative to 1500 db as determined from the CTD
casts and (above right) upper ocean velocity as
measured by the ADCP. |
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(left) Absolute geostrophic velocity referenced
to the ADCP measurements. Notice that the absolute currents
are stronger and penetrate deeper than deduced from geostrophy
referred to 1500 db. The absolute geostrophic velocity
maximum near 200 m is reduced relative to the fine-scale
ADCP measurements by the inherent horizontal averaging
between CTD stations. |
(This work used PPLUS and EPIC programs CTDVAR, CTDVEL,
CONCTDVEL, TRACKAV, POINTAV and CONADCP. )
Reference:
Cokelet, E.D., M.L. Schall and D.M. Dougherty (1995): ADCP-referenced
geostrophic circulation in the Bering Sea Basin. J. Phys. Oceanogr.
(submitted).
EPIC graphics of Bering
Sea Basin Circulation
ADCP
(acoustic Doppler current profiler) vectors, satellite-tracked
drifting buoy paths and hydrographic sections reveal the currents
in the deep Bering Sea basin as measured by NOAA's Bering Sea
FOCI (Fisheries Oceanography Coordinated Investigations) Program
in August 1991.
Two strong current systems are evident. The Alaskan Stream
lies just south of the Aleutian Islands and provides inflow
to the Bering Sea through the Aleutian passes. It separated
from the island arc at 174E forming a large clockwise eddy that
reduced the inflow through Near Strait. The Kamchatka Current
on the western side is the main outflow from the Bering Sea.
Eddies entrain water from it, and weak currents and eddies comprise
the basin's interior flow. (click on the image to see
a larger version.)
This work used PPLUS and EPIC programs TRACKAV and MAPADCP.
Principal Investigators: E.D.Cokelet, R.K.Reed & P.J.Stabeno,
NOAA/PMEL
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