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A decade of physical and biogeochemical measurements in the Northern Indian Ocean.

DRS at CSIR-National Institute of Oceanography

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Title A decade of physical and biogeochemical measurements in the Northern Indian Ocean.
 
Creator PrasannaKumar, S.
Sardesai, S.
Ramaiah, N.
 
Subject physical properties
biogeochemistry
seasonal variations
 
Description The northern Indian Ocean consists of two tropical basins (Arabian Sea and Bay of Bengal) and the equatorial region that comes under the influence of monsoonal wind reversal. We present the results from three Indian programmes since 1992 aimed at understanding the seasonal variability of physical and biogeochemical parameters. The results showed strongest seasonal cycle in the Arabian Sea with blooms during summer and winter. Upwelling, advection and wind-mixing drive the summer bloom, while the winter bloom was due to convective-mixing. In the Bay of Bengal mesoscale eddies enhanced the biological productivity. The data collected so far suggest very low chlorophyll biomass and productivity in the equatorial Indian Ocean. Though our understanding of the coupling between the physical and biogeochemical fields in the northern Indian Ocean over the seasonal scale have enhanced tremendously, a sustained regional observational network including repeat sections, moored arrays and drifters is needed for understanding the climate variability.
 
Date 2017-09-27T13:04:39Z
2017-09-27T13:04:39Z
2010
 
Type Conference Article
 
Identifier Proceedings of OceanObs’09: Sustained Ocean Observations and Information for Society. Ed. by: Hall, J.; Harrison, D.E.; Stammer, D. ESA Publication, vol.Annex; 2010; 4pp.
http://drs.nio.org/drs/handle/2264/5146
 
Language en
 
Rights Copyright [2010]. 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 ESA Publication