A Survey of the Impact on Acoustic Propagation of Warm Core Ocean Eddys

Warm core eddys have been found throughout the oceans of the world. Most have a bowl-like shape extending down from the surface, which, along with an increased sound speed due to the warmer water core, causes more acoustic energy to be refracted toward the surface than would occur without an eddy pr...

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Bibliographic Details
Main Authors: Browning, David G., Monti, Joseph M., Petitpas, Linda S.
Other Authors: NAVAL UNDERSEA WARFARE CENTER DIV NEWPORT RI
Format: Text
Language:English
Published: 1993
Subjects:
Physical and Dynamic Oceanography
Acoustic Detection and Detectors
*ACOUSTIC WAVES
*EDDIES(FLUID MECHANICS)
*UNDERWATER ACOUSTICS
VELOCITY
FREQUENCY
ENERGY
VARIATIONS
SHALLOW WATER
WAVE PROPAGATION
SOUND
GREENLAND SEA
NORWEGIAN SEA
OCEAN ENVIRONMENTS
ACOUSTIC VELOCITY
PACIFIC OCEAN
ATLANTIC OCEAN
OCEANS
RECEIVERS
PROFILES
SURFACES
TRACKING
ACOUSTIC DETECTION
TEMPERATURE
CORES
Norwegian Sea
Greenland
Pacific
Greenland Sea
Online Access:http://www.dtic.mil/docs/citations/ADA272188
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA272188
Description
Summary:Warm core eddys have been found throughout the oceans of the world. Most have a bowl-like shape extending down from the surface, which, along with an increased sound speed due to the warmer water core, causes more acoustic energy to be refracted toward the surface than would occur without an eddy present. However, the impact on acoustic propagation varies significantly from ocean to ocean, because of variations in eddy size and core temperature, as well as sound speed profile differences in the adjoining waters. Examples are given from the North and South Atlantic Oceans, North and South Pacific Oceans, Greenland and Norwegian Seas.

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