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Characteristics of coastal waters of the western Bay of Bengal during different monsoon seasons

DRS at CSIR-National Institute of Oceanography

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Title Characteristics of coastal waters of the western Bay of Bengal during different monsoon seasons
 
Creator Suryanarayana, A.
Murty, C.S.
Rao, D.P.
 
Subject meteorology
meteorological data
winds
wind stress
upwelling
coastal waters
river discharge
water column
hydrographic data
STD observations
haline circulation
seasonal variations
geographical distribution
vertical distribution
 
Description Physical characteristics of waters along the eastern coast of India up to offshore distances of 400 km have been investigated during the seasons of the north-easterly and south-westerly monsoons in light of relevant observed meteorological forcings. Analysis of wind data for five years (1980-84) showed high magnitudes of onshore-directed wind-stress impulse in the northern region throughout the year. Under the influence of this impulse, surface waters from offshore move towards the coast and sink along the shore under the direct wind setup. This feature is also indicatEd. by negative values of the upwelling index. Fresh water, discharged through multiple outlets along the coast, mixes within the upper 50 m of water column and spreads south-westward as a lens of low-salinity water. Further, fresh water advects offshore to distances of about 150 km. The transient, cross-shelf, haline frontal zones observed along the western margin of the Bay of Bengal separate the northern dilute waters from the southern saline waters
 
Date 2009-05-08T12:10:06Z
2009-05-08T12:10:06Z
1992
 
Type Journal Article
 
Identifier Australian Journal of Marine and Freshwater Research, Vol.43; 1517-1533p.
http://drs.nio.org/drs/handle/2264/3108
 
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 CSIRO, Australia