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Residence time of pollutants discharged in the Gulf of Kachchh, northwestern Arabian Sea

DRS at CSIR-National Institute of Oceanography

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Title Residence time of pollutants discharged in the Gulf of Kachchh, northwestern Arabian Sea
 
Creator Patgaonkar, R.S.
Vethamony, P.
Lokesh, K.S.
Babu, M.T.
 
Subject pollutants
residence time
approximation
hydrodynamics
 
Description A 2D Hydrodynamic-Particle Analysis model was applied to the Gulf of Kachchh (GoK) to estimate the residence time of pollutants. The tidal currents in the Gulf have a strong E-W component, which prevents the material in the north being transported towards south. In the regions situated very close to the open boundary, where the GoK waters exchange freely with the northern Arabian Sea, dilution takes place rapidly with the incoming waters and hence, the residence time is on the order of 1 day. Influence of eddies and a dynamic barrier across the Sikka-Mundra section on the residence time is apparent. Eastern GoK shows a relatively large residence time, on the order of 2-4 days, warranting caution while releasing industrial wastes in the northeastern Gulf. The region around location-5 behaves like a bay; the dissolved matter gets trapped in this bay and the residence time increases by 3-4 days.
 
Date 2012-09-03T05:00:06Z
2012-09-03T05:00:06Z
2012
 
Type Journal Article
 
Identifier Marine Pollution Bulletin, vol.64; 2012; 1659-1666
no
http://drs.nio.org/drs/handle/2264/4141
 
Language en
 
Relation Mar_Pollut_Bull_64_1659.jpg
 
Rights An edited version of this paper was published by Elsevier. Copyright [2012] Elsevier
 
Publisher Elsevier