Collection and Processing of Shipboard ADCP Velocities from the Barents Sea Polar Front Experiment

The Barents Sea Polar Front Experiment was a combined physical oceanography and acoustic tomography field study which took place from 6-26 August 1992. Both shipboard and moored data were collected in a 80 x 70 km experimental region on the south flank of Spitsbergen Bank about 60 km east of Bear Is...

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Bibliographic Details
Main Authors: Harris, Carolyn L., Plueddemann, Albert J., Bourke, Robert H., Stone, Maria D., Pawlowicz, Richard A.
Other Authors: WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
Format: Text
Language:English
Published: 1995
Subjects:
Physical and Dynamic Oceanography
Acoustic Detection and Detectors
*FRONTS(OCEANOGRAPHY)
ACOUSTIC WAVES
GRIDS
PROFILES
SAMPLING
SHIPBOARD
INSTRUMENTATION
TOMOGRAPHY
OSCILLATION
UNDERWATER ACOUSTICS
FLOWMETERS
ACOUSTIC FIELDS
DOPPLER EFFECT
OCEAN TIDES
MOORING
OCEANOGRAPHY
STEADY FLOW
ARCTIC OCEAN
ACOUSTIC TIMOGRAPHY
ADCP(ACOUSTIC DOPPLER CURRENT PROFILERS)
SEMIDIURNAL VARIATIONS
Arctic
Arctic Ocean
Barents Sea
Bear Island
Spitsbergen Bank
Spitsbergen
Online Access:http://www.dtic.mil/docs/citations/ADA298021
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA298021
Description
Summary:The Barents Sea Polar Front Experiment was a combined physical oceanography and acoustic tomography field study which took place from 6-26 August 1992. Both shipboard and moored data were collected in a 80 x 70 km experimental region on the south flank of Spitsbergen Bank about 60 km east of Bear Island. Of principal interest in this report are the data from an Acoustic Doppler Current Profiler (ADCP) which was operated continuously during the experimental period as a part of the shipboard instrumentation aboard the USNS BARTLETT. The data from eight current meters deployed on three moorings in the experimental region are used to supplement the ADCP analysis. Preliminary results showed that velocities in the experimental region were dominated by semi-diurnal tides. The strong tidal oscillations dictated the use of a tide removal scheme to extract a steady flow component from the space time grid of ADCP velocities. This report describes the configuration and operation of the ADCP, the space time sampling grid on which the data were collected, the determination of absolute velocity from the ADCP measurements, and the application and results of a tide removal technique which allowed estimation of the subtidal flow.

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