Arctic Acoustic Propagation Model with Ice Scattering.

An underwater sound propagation program has been adapted to Arctic use. The program enables computation of the coherent sound field with normal modes and the incoherent surface scattered field by integrating over ray paths from the surface to the source and receiver. For Arctic use, ice scattering a...

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Bibliographic Details
Main Authors: Gordon,D F, Bucker,H P
Other Authors: NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA
Format: Text
Language:English
Published: 1984
Subjects:
Acoustics
*SOUND TRANSMISSION
*ACOUSTIC SCATTERING
SEASONAL VARIATIONS
INCOHERENT SCATTERING
UNDERWATER SOUND
TRANSMISSION LOSS
SEA ICE
ARCTIC REGIONS
PE62759N
WU712MA43
Arctic
Sea ice
Online Access:http://www.dtic.mil/docs/citations/ADA149430
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA149430
Description
Summary:An underwater sound propagation program has been adapted to Arctic use. The program enables computation of the coherent sound field with normal modes and the incoherent surface scattered field by integrating over ray paths from the surface to the source and receiver. For Arctic use, ice scattering and ice loss functions have been developed by comparing computed losses with Arctic propagation loss data. The sensitivity of the computed losses to the form of the scattering function is determined for one frequency. A difference in ice loss between summer and winter is hypothesized, but the data are insufficient to check the hypothesis. (Author)

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