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The influence of quasi resonant internal waves on the radar imaging mechanism of shallow sea bottom topography ArchiMer
Hennings, I; Metzner, M; De Loor, Gp.
During previous field experiments in the North Sea it was often assumed that the water column in such shallow coastal tidal waters is vertically well mixed and stratification was neglected when discussing the Normalized Radar Cross Section modulation caused by the sea floor. In this paper the influence of quasi resonant internal waves with the sea bed on the radar imaging mechanism of submarine sand waves itself is investigated. In situ data of the tidal cur-rent velocity and several water quality parameters such as sea surface temperature, fluorescence. and beam transmittance were measured in the Southern Bight of the North Sea in April 1991. Simulations of the total NRCS modulation caused by sand waves and internal waves as a function of the current...
Tipo: Text Palavras-chave: Mécanisme des images radar; Topographie des fond marins; Stratification; Ondes internes; Radar imaging mechanism; Sea bottom topography; Stratification internal wave; Strain rate.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/00322/43322/42932.pdf
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