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dc.contributor.authorPrasannaKumar, S.
dc.contributor.authorNuncio, M.
dc.contributor.authorKumar, A.
dc.contributor.authorSardessai, S.
dc.contributor.authorDeSouza, S.N.
dc.contributor.authorGauns, M.
dc.contributor.authorRamaiah, N.
dc.contributor.authorMadhupratap, M.
dc.date.accessioned2006-06-12T06:03:08Z
dc.date.available2006-06-12T06:03:08Z
dc.date.issued2004
dc.identifier.citationGeophysical Research Letters, Vol.31(7)
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/113
dc.description.abstractThe Bay of Bengal is traditionally considered to be a less productive basin compared to the Arabian Sea. Despite the contrasting chlorophyll and primary productivity pattern, sediment trap data shows that annual fluxes of organic carbon reach comparable rates in both the basins. The traditional mechanisms of nutrient supply to the upper ocean waters cannot account for this. We propose eddy pumping as a possible mechanism of vertical transfer of nutrients across the halocline to the oligotrophic euphotic zone during summer monsoon when upper ocean is highly stratified. This would induce rapid biological uptake and in turn significantly increase biological production. In the northern Bay, riverine input acts as an additional source of nutrients and augments the subsurface nutrient injection to the euphotic zone by eddy pumping. Notwithstanding this, the lower than expected primary production in the north suggests the possible role of riverine sediment in limiting the sunlight for photosynthesis.
dc.description.sponsorshipThis work was supported by the Department of Ocean development under the program Bay of Bengal Process Studies (BOBPS). Authors Nuncio and Jayu acknowledge the financial support from CSIR
dc.format.extent733818 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherAmerican Geophysical Union
dc.rightsAn edited version of this paper was published by AGU. Copyright [2004] American Geophysical Union
dc.subjectEddies and mesoscale processes
dc.subjectCirculation and Hydrography
dc.subjectStratification
dc.subjectChlorophyll and phytoplankton
dc.subjectNutrients
dc.subjectRiver input
dc.subjectFresh water flux
dc.subjectBay of Bengal
dc.titleAre eddies nature’s trigger to enhance biological productivity in the Bay of Bengal?
dc.typeJournal Article


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