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Impact of sinking carbon flux on accumulation of deep-ocean carbon in the Northern Indian Ocean

DRS at CSIR-National Institute of Oceanography

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Title Impact of sinking carbon flux on accumulation of deep-ocean carbon in the Northern Indian Ocean
 
Creator Sarma, V.V.S.S.
DileepKumar, M.
Saino, T.
 
Subject carbon cycle
regeneration
sinking
particulate organic carbon
inorganic carbon
biogeochemical cycle
 
Description The export of carbon through the biological pump from the surface to the deep ocean has a direct influence on the removal of CO sub(2) from the atmosphere. This is because the carbon is sequestered for only a few days to months in the surface while the carbon removed from the surface to deep waters takes hundreds of years to re-enter the atmosphere. The highest dissolved inorganic carbon (DIC) is expected in the deep waters of the North Pacific due to longer age of waters. On contrary, the higher deep water DIC is found in the northern Indian Ocean than elsewhere in the World Oceans. The sinking fluxes of particulate organic (POC) and inorganic carbon (CaCO sub(3)) are found to be the highest in the northern Indian Ocean. The rates of bacterial respiration, organic carbon regeneration and inorganic carbon dissolution are also found to be the highest in the northern Indian Ocean than elsewhere. A most efficient biological pump appears to be operating in the northern Indian Ocean that transports surface-derived organic/inorganic carbon to deeper layers where it is converted and stored for longer times in dissolved inorganic form.
 
Date 2008-01-30T12:41:29Z
2008-01-30T12:41:29Z
2007
 
Type Journal Article
 
Identifier Biogeochemistry, Vol.82; 89-100p.
http://drs.nio.org/drs/handle/2264/673
 
Language en
 
Publisher Springer