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Please use this identifier to cite or link to this item: http://drs.nio.org/drs/handle/2264/4019

Title: Life cycle of eddies along the western boundary of the Bay of Bengal and their implications
Authors: Nuncio, M.
PrasannaKumar, S.
Citation: Journal of Marine Systems, vol.94; 2012; 9-17
Issue Date: 2012
Publisher: Elsevier
Abstract: Analysis of vertical thermohaline structure along the western boundary of the Bay of Bengal revealed many undulations during April–May 2003. A prominent feature noticed was a dome in the northwestern boundary of the Bay of Bengal, which was found to be a cyclonic eddy (NCE). This eddy altered the ambient temperature by 6 degrees C and salinity by 0.8 psu. NCE was formed from a meander generated out of an instability due to cross-shore density gradient in the northeastward flowing western boundary current during early February. The cross-shore density gradient was developed under the influence of cyclonic (upwelling)/anticyclonic (downwelling) wind stress curl along the western boundary/open ocean region and the westward propagating Rossby wave. EOFs of SLA showed that annual cycle (EOFs 1 and 2) accounts for 39% of the total variance, while meso-scale eddies contributed up to 25% of the variance. Meso-scale eddies dominate the BOB circulation and are able to enhance the surface chlorophyll whenever the stratification is weak as in the case of intermonsoon 2003.
Document type: Journal Article
Copyright: An edited version of this paper was published by Elsevier. Copyright [2011] Elsevier
URI: http://drs.nio.org/drs/handle/2264/4019
Appears in Collections:Physical Sciences

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