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Water characteristics, mixing and circulation in the Bay of Bengal during southwest monsoon

DRS at CSIR-National Institute of Oceanography

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Title Water characteristics, mixing and circulation in the Bay of Bengal during southwest monsoon
 
Creator Murty, V.S.N.
Sarma, Y.V.B.
Rao, D.P.
Murty, C.S.
 
Description Influence of the freshwater influx, the wind forcing and the Indian Ocean monsoon drift current on the property distributions and the circulation in the Bay of Bengal during southwest monsoon has been quantified. At the head of the Bay, waters of low salinity, affectEd. by the freshwater influx, occupy the upper 90 m water column. The isohaline 34.0 x 10 sup(-3) separating these waters from those of underlying saline waters shoals southward gradually and outcrops around 14N, 10N and 6N in the western, central and southeastern regions of the Bay respectively. The wind-stress-curl-induced upwelling effect is confined to depth limits of 50-100 m as is supportEd. by a band of cold (24 degrees -19 degrees C) water in the central Bay. In the southern and central regions of the Bay, the monsoon drift current feeds the large cale cyclonic gyre apart from maintaining the northward boundary current in the eastern Bay. A warm (27 degrees -23 degrees C), saline (35.0-35.2 x 10 sup(-3)) watermass is advected northeastward along with the monsoon drift current into the Bay up to 14N at the depth limits of 50-100 m. Below this depth, in the western Bay a well-defined southward flow in the form of a boundary current is documented. Intense vertical mixing is inferred at the zones of salinity fronts in the depth limits of 40-100 m and also a deeper depths (2200 m) and elsewhere lateral mixing is predominant
 
Date 2009-05-08T12:11:54Z
2009-05-08T12:11:54Z
1992
 
Type Journal Article
 
Identifier Journal of Marine Research, Vol.50; 207-228p.
http://drs.nio.org/drs/handle/2264/3114
 
Language en
 
Rights Copyright [1992]. 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.
 
Publisher Yale University