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Media type:
E-Article
Title:
Description of a noise model for shallow water: RANDI-III
Contributor:
Breeding, J. Ernest;
Bradley, Marshall;
Hebert, Melanie;
McBride, Walt
Published:
Acoustical Society of America (ASA), 1993
Published in:
The Journal of the Acoustical Society of America, 94 (1993) 3_Supplement, Seite 1820-1820
Language:
English
DOI:
10.1121/1.407810
ISSN:
0001-4966
Origination:
Footnote:
Description:
Version III of the research ambient noise directionality (RANDI-III) noise model is described and illustrated. The objective of the model is to make predictions of the ambient noise at low to mid frequencies (10 to several hundred Hz) for highly variable environmental conditions typical of shallow water and coastal areas. The receiver can be either a horizontal or vertical line array. Shipping and local wind are assumed to be the dominant sources of noise. Ships are treated as discrete sources of noise. The ship noise is propagated to the elements of the receiver using a wide-angle finite element parabolic equation. The contributions from all ships are added coherently. The environmental and shipping information are automatically extracted from several databases. [Research supported by The Office of Naval Research, Program Element 62435N with technical management provided by the Naval Research Laboratory, Stennis Space Center, MS.]