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Seasonal variation of the salinity in the Zuari estuary, Goa

DRS at CSIR-National Institute of Oceanography

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Title Seasonal variation of the salinity in the Zuari estuary, Goa
 
Creator Shetye, S.R.
Murty, C.S.
 
Subject Oceanography and Limnology
monsoons
vertical mixing
estuaries
seasonal variations
salinity
ISW, India, Goa, Zuari Estuary
 
Description The annual salt budget of the Zuari is examined. The characteristics of the estuary differ markedly from the low run off season during November - May to the heavy run off period of the southwest monsoon from June to October. During November - May the estuary is vertically mixed and the two processes controlling the transport of salt are run off induced advective transport out of the estuary, and tidally induced diffusive transport into the estuary. The magnitude of the latter is about 20% larger, leading to a salinity rise in the estuary. The diffusion coefficient has been estimated to be 233 plus or minus 101 m2/sec. With the onset of the southwest monsoon, the run off increases dramatically, and the estuary loses about 75% of its salt during the first two months of the season. About 2/3 of this loss is recovered in the next two months when the run off decreases. Because the estuary is partially stratified during June - October, gravitational circulation is expected to play a role in addition to tidal diffusion and run off. The magnitude of this contribution has, however, not yet been determined
 
Date 1995-09-02T10:01:33Z
2017-09-29T13:48:14Z
1995-09-02T10:01:33Z
2017-09-29T13:48:14Z
1987
 
Type Journal Article
 
Identifier Proceedings of the Indian Academy of Sciences (Earth and Planetary Sciences), vol.96; 1987; 249-257
0253-4126
http://drs.nio.org/drs/handle/2264/6105
 
Language en
 
Relation P Indian As-Earth
SCI
 
Publisher Indian Academy of Sciences, Bangalore