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dc.contributor.authorRamaswamy, V.
dc.contributor.authorNair, R.R.
dc.contributor.editorLal, D.
dc.date.accessioned1995-01-17T10:06:29Z
dc.date.accessioned2017-09-30T01:55:41Z
dc.date.available1995-01-17T10:06:29Z
dc.date.available2017-09-30T01:55:41Z
dc.date.issued1994
dc.identifier.citationProceedings of the Indian Academy of Sciences (Earth and Planetary Sciences), vol.103(2); 1994; 189-210
dc.identifier.issn0253-4126
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/7367
dc.descriptionSpecial Issue: Biogeochemistry of the Arabian Sea: Present information and gaps
dc.description.abstractIn order to investigate how monsoons influence biogeochemical fluxes in the ocean, twelve time-series sediment traps were deployed at six locations in the northern Indian Ocean. In this paper we present particle flux data collected during May 1986 to November 1991 and November 1987 to November 1992 in the Arabian Sea and Bay of Bengal respectively. Particle fluxes were high during both the SW and NE monsoons in the Arabian Sea as well as in the Bay of Bengal. The mechanisms of particle production and transport, however, differ in both the regions. In the Arabian Sea, average annual fluxes are over 50 g m@u-2@@ y@u-1@@ in the western Arabian Sea and less than 27 g m@u-2@@ y@u-1@@ in the central part. Biogenic matter is dominant at sites located near upwelling centers, and is less degraded during peak flux periods. High particle fluxes in the offshore areas of the Arabian Sea are caused by injection of nutrients into the euphotic zone due to wind-induced mixed layer deepening. In the Bay of Bengal, average annual fluxes are highest in the central Bay of Bengal (over 50 g m@u-2@@ y@u-1@@) and are least in the southern part of the Bay (37 g m@u-2@@ y@u-1@@). Particle flux patterns coincide with freshwater discharge patterns of the Ganges-Brahmaputra river system. Opal/carbonate and organic carbon/carbonate carbon ratios increase during the SW monsoon due to variations in salinity and productivity patterns in the surface waters as a result of increased freshwater and nutrient input from rivers
dc.languageen
dc.publisherIndian Academy of Sciences, Bangalore
dc.relation.ispartofP Indian As-Earth
dc.relation.isreferencedbySCI
dc.subjectGeology and Geophysics
dc.subject.otherparticulate flux
dc.subject.otherapproximation
dc.subject.othersediment traps
dc.subject.othertime series analysis
dc.subject.othermonsoons
dc.subject.otherannual variations
dc.subject.otherISW, Arabian Sea
dc.subject.otherISW, Bengal Bay
dc.titleFluxes of material in the Arabian Sea and Bay of Bengal - Sediment trap studies
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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