Space borne SAR observations of oceanic internal waves in North Bay of Bengal |
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Authors: | K V S R Prasad M Rajasekhar |
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Institution: | (1) Department of Meteorology & Oceanography, Andhra University, Visakhapatnam, India;(2) Meteorology Facility, Sathish Dhawan Space Centre (SDSC SHAR), Indian Space Research Organization (ISRO), Sriharikota, India |
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Abstract: | Sea surface manifestations of internal waves (IW) in the shallow continental shelf waters of North Bay of Bengal have been
observed in almost all seasons imaged by Synthetic Aperture Radar (SAR) images of ERS1/2 and Envisat ASAR missions during
the period 1993–2004. Shoreward propagating short-period IW packets are observed particularly in summer stratified coastal
waters Off Chilka region. In summer waters, prominent short-period shoreward propagating internal waves of consecutive imageries
of ERS-1/2 SAR (12th and 13th April 1996) are studied. On 4th October 2003, Envisat ASAR imaged strong surface manifestations
of huge internal wave group wavelengths and those propagations were discussed in detail. In the research, we also made an
attempt for temporal distribution of IW signatures on SAR in North Bay of Bengal. |
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Keywords: | |
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