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dc.contributor.authorShetye, S.R.
dc.contributor.authorGouveia, A.D.
dc.contributor.authorShenoi, S.S.C.
dc.contributor.authorSundar, D.
dc.contributor.authorMichael, G.S.
dc.contributor.authorNampoothiri, G.
dc.date.accessioned2009-05-06T11:14:45Z
dc.date.available2009-05-06T11:14:45Z
dc.date.issued1993
dc.identifier.citationJournal of Geophysical Research (C: Oceans), Vol.98; 945-954p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/2903
dc.description.abstractHydrographic data collected during March-April 1991 show the presence of a poleward current along the western boundary of the Bay of Bengal of about 10 degrees N carrying warmer waters of southern origin. The inshore side of the current was markEd. by cooler, more saline waters brought to the surface due to the presence of the current which transported approximately 10 x 10 sup(6)m sup(3)/s. The hydrography is suggestive of many of the features that have been associated with the western boundary currents of the subtropical gyres of the world oceans:a recirculation zone, waves, eddies, etc. These features, however, were not satisfactorily resolved in the data. Using available climatologies of monthly mean ship drifts, seasonal hydrography, and monthly mean wind stress, we propose that the poleward current is the western boundary current of a seasonal anticyclonic subtropical gyre which forms in the Bay during January, is best developed during March-April, and decays by June. The gyre and the western boundary current are unique because of their seasonal character. The pattern of circulation leading to formation and decay of the gyre is reproduced reasonably well in the computation of the monthly mean barotropic transport inducEd. by the curl of wind stress, which has a well-defined annual cycle due to the monsoon and which is conductive to the formation of an anticyclonic gyre only during the months of January-May. The pattern of circulation due to barochlinic transport inducEd. by the wind stress, however, is not known at present, and this makes it difficult to conclude unequivocally that e wind stress curl over the bay is the sole mechanism to force the gyre.
dc.language.isoen
dc.publisherAmerican Geophysical Union
dc.rightsCopyright [1993]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subjectwestern boundary currents
dc.subjectgyre
dc.subjecthydrographic data
dc.subjectwind stress curl
dc.titleThe western boundary current of the seasonal subtropical gyre in the Bay of Bengal
dc.typeJournal Article


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