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Spatial and temporal variations of wave height in shelf seas around India

DRS at CSIR-National Institute of Oceanography

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Title Spatial and temporal variations of wave height in shelf seas around India
 
Creator SanilKumar, V.
Anoop, T.R.
 
Subject OCEANOGRAPHY AND LIMNOLOGY
OCEANOGRAPHY AND LIMNOLOGY
 
Description The spatial and temporal variations of wave height in shelf seas around Indian mainland are examined based on the ERA-Interim dataset produced by the European Centre for Medium-Range Weather Forecasts. The study shows that during the summer monsoon, higher wave heights are observed in all locations except at the southern locations in the shelf seas around India, where the winter monsoon is predominant. The annual average significant wave height is highest (~1.6 m) at the southern location. During 1979–2012, a weak statistically significant increasing trend (maximum ~0.20 cm/year) in wave height is observed in the northern and southern region of eastern Arabian Sea, whereas the middle region shows negligible negative trend. A weak decreasing trend (maximum ~-0.18 cm/year) in wave height is observed in the western Bay of Bengal except along the southern region. At most of the locations weak decreasing trend (0.1–2.5 cm/s/year) is observed for the annual mean wind speed. The conflicting trends in the wind speed and wave height are mainly due to the swell dominance in the North Indian Ocean
 
Date 2015-10-27T09:44:26Z
2015-10-27T09:44:26Z
2015
 
Type Journal Article
 
Identifier Natural Hazards, vol.78(3); 2015; 1693-1706
http://drs.nio.org/drs/handle/2264/4821
 
Language en
 
Rights An edited version of this paper was published by Springer. This paper is for R & D purpose and Copyright [2015] Springer
 
Publisher Springer