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'Shamal' swells in the Arabian Sea and their influence along the west coast of India

DRS at CSIR-National Institute of Oceanography

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Title 'Shamal' swells in the Arabian Sea and their influence along the west coast of India
 
Creator Aboobacker, V.M.
Vethamony, P.
Rashmi, R.
 
Subject Wave data
monsoon
shamal swells
Arabian Sea
 
Description Wave data collected off Ratnagiri, Goa and Dwarka along the west coast of India during winter season (NE monsoon and early pre‐monsoon) present distinct wave characteristics with periodicity ranging between 2 and 5 days associated with shamal events. The notable wave characteristics during these events are: an increase in wave height, decrease in swell period and a common propagation direction (northwest) for wind sea and swell. IFREMER/CERSAT blended winds clearly show the presence of strong northwesterly winds in the Arabian Peninsula and northwestern Arabian Sea, which are associated with the winter shamal events. The winds during such events generate large northwesterly swells (shamal swells) in the northwestern Arabian Sea and propagate towards the west coast of India in the NW direction with mean periods ranging between 6 and 8 s. Numerical simulations reproduce the shamal swells over the Arabian Sea, and they can be traced all along the west coast of India, however, with lesser order of magnitude from north to south. Generation and propagation of shamal swells and their influence along the west coast of India have been described.
 
Date 2011-02-15T09:54:04Z
2011-02-15T09:54:04Z
2011
 
Type Journal Article
 
Identifier Geophysical Research Letters, vol.38(3); 2011; 7 pp., doi:10.1029/2010GL045736
no
http://drs.nio.org/drs/handle/2264/3793
 
Language en
 
Relation Geophys_Res_Lett_38_7.jpg
 
Rights An edited version of this paper was published by AGU. Copyright [2011] AGU. To view the published open abstract, go to http://dx.doi.org and enter the DOI.
 
Publisher American Geophysical Union