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Organic carbon removal in the sea: the continental connection

DRS at CSIR-National Institute of Oceanography

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Title Organic carbon removal in the sea: the continental connection
 
Creator Ittekkot, V.
Haake, B.
Bartsch, M.
Nair, R.R.
Ramaswamy, V.
 
Description Time series sediment traps have been deployed since May 1986 in the Arabian Sea and since October 1987 in the Bay of Bengal. The results of one and a half years from the western, central, and eastern Arabian Sea and of one year from the northern Bay of Bengal show that particle flux patterns are related to the strong monsoon winds and heavy rains. Particle flux maxima in the Arabian Sea are mainly related to wind-induced deeper mixing and nutrient enrichment of surface waters during the SW and NE monsoons. Extremely high particle fluxes with high biogenic opal contents during the SW monsoon at the western location show that it is reachEd. by nutrient-rich water from the near-shore upwelling centres. In the northern Bay of Bengal, particle flux maxima coincide with the period of maximum discharge of the Ganges and Brahmaputra rivers during which river plumes enriched in nutrients are advected into offshore areas. Additionally, the winds and river plums supply enormous amounts of mineral matter during the periods of high productivity and high particle fluxes. The interaction between marine-biogenic material with eolian and fluviatile mineral particles play a key role in sedimentation. The incorporation of mineral matter into biologically formed aggregates ensures their rapid sedimentation and thus enhances the removal of biologically fixed atmospheric carbon dioxide to the deep sea
 
Date 2009-05-08T11:56:17Z
2009-05-08T11:56:17Z
1992
 
Type Book Chapter
 
Identifier Upwelling systems: Evolution since the early Miocene. Ed. by: Summerhayes, C.P., 167-176p. Geological Society Special Publication
http://drs.nio.org/drs/handle/2264/3034
 
Language en
 
Rights Copyright [1992]. 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 Geological Society of London