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dc.contributor.authorAmol, P.
dc.contributor.authorBemal, S.
dc.contributor.authorShankar, D.
dc.contributor.authorJain, V.
dc.contributor.authorThushara, V.
dc.contributor.authorVijith, V.
dc.contributor.authorVinayachandran, P.N.
dc.date.accessioned2020-12-31
dc.date.accessioned2021-02-09T10:13:16Z
dc.date.available2020-07-05
dc.date.available2021-02-09T10:13:16Z
dc.date.issued2020
dc.identifier.citationProgress in Oceanography, vol.186; 2020; Article no: 102365
dc.identifier.issn0079-6611
dc.identifier.otherhttps://www.sciencedirect.com/science/article/pii/S007966112030104X
dc.identifier.urihttps://doi.org/10.1016/j.pocean.2020.102365
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/8456
dc.descriptionIF2019 - 4.06
dc.description.abstractSignatures of Rossby waves that are evident in satellite ocean colour data in the southeastern Arabian Sea (SEAS) are more prominent during the winter than the summer monsoon. During the winter, the sea level is high, and the conditions are less conducive for the injection of nutrients through the eddy-pumping mechanism. In this study, we use satellite observations and a physical-ecosystem model to examine the role of horizontal advection associated with Rossby waves in enhancing chlorophyll concentration in the SEAS. Zonal advection dominates over meridional advection, and its effect is more prominent in the south of Indian subcontinent and west of the Maldives. Except along the coast and around the islands, the vertical processes are weak and do not lead to a substantial increase in chlorophyll. Model simulations show that the currents associated with the Rossby wave also transport nutrients and other physicochemical properties of water along the path of the wave. The advected water decreases the concentration of Arabian Sea High Salinity water mass and replenishes the oxygen in the oxygen minimum zone in the SEAS.
dc.languageen
dc.publisherElsevier Ltd
dc.relation.ispartofProg Oceanogr
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleModulation of chlorophyll concentration by downwelling Rossby waves during the winter monsoon in the southeastern Arabian Sea
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Mumbai, Maharastra, India


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