The application of coupled-mode theory to propagation in shallow water with randomly varying sound speed

dc.contributor.author	Thiele, Rolf
dc.date.accessioned	2018-10-11T14:05:53Z
dc.date.available	2018-10-11T14:05:53Z
dc.date.issued	1987/06
dc.identifier	1677
dc.identifier.govdoc	SM-199
dc.identifier.uri	http://hdl.handle.net/20.500.12489/166
dc.description.abstract	Sound propagation in the Baltic Sea cannot be described correctly by range independent propagation
dc.description.abstract	models, even for areas with more or less constant water depths. The reason is the inability of such
dc.description.abstract	models to take account of the effect of forward scattering of sound produced by horizontal variations
dc.description.abstract	in the speed of the sound. Schneider and Sellschopp have simulated the forward-scattering effect by
dc.description.abstract	applying a parabolic equation method in conjunction with a Monte Carlo ray tracing program (MOCASSIN). This paper treats forward scattering in the normal mode concept, using the mode coupling formulation given by S.T. McDaniel. The mode coupling was added to the SUPERSNAP normal-mode code. Comparisons are made with the Schneider-Sellschopp calculations and with real data.
dc.format	29 p. : ill. ; 37 fig.
dc.language	English
dc.publisher	NATO. SACLANTCEN
dc.relation.ispartofseries	ADA183630
dc.subject	Baltic Sea
dc.subject	Acoustic propagation
dc.subject	Mocassin (graphics library)
dc.subject	Sound velocity in sea water
dc.title	The application of coupled-mode theory to propagation in shallow water with randomly varying sound speed
dc.type	Scientific Memorandum (SM)