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Space borne SAR observations of oceanic internal waves in North Bay of Bengal

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  • K. Prasad
  • M. Rajasekhar

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. Copyright Springer Science+Business Media B.V. 2011

Suggested Citation

  • K. Prasad & M. Rajasekhar, 2011. "Space borne SAR observations of oceanic internal waves in North Bay of Bengal," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 57(3), pages 657-667, June.
    • Handle: RePEc:spr:nathaz:v:57:y:2011:i:3:p:657-667
    DOI: 10.1007/s11069-010-9630-6
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    Citations

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    Cited by:

    1. Himansu K. Pradhan & A. D. Rao & Madhu Joshi, 2016. "Neap—spring variability of internal waves over the shelf-slope along western Bay of Bengal associated with local stratification," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 80(2), pages 1369-1380, January.
    2. Suryanarayana Acharyulu Phaniharam & Venkateswarlu Chintam & Gireesh Baggu & Venkata Siva Rama Prasad Koneru, 2020. "Study of internal wave characteristics off northwest Bay of Bengal using synthetic aperture radar," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 104(3), pages 2451-2460, December.
    3. Sachiko Mohanty & A. D. Rao & Himansu Pradhan, 2017. "Effect of seasonal and cyclonic winds on internal tides over the Bay of Bengal," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 87(2), pages 1109-1124, June.
    4. Himansu Pradhan & A. Rao & Madhu Joshi, 2016. "Neap—spring variability of internal waves over the shelf-slope along western Bay of Bengal associated with local stratification," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 80(2), pages 1369-1380, January.

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