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Biogeochemical ocean-atmosphere transfers in the Arabian Sea

DRS at CSIR-National Institute of Oceanography

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Title Biogeochemical ocean-atmosphere transfers in the Arabian Sea
 
Creator Naqvi, S.W.A.
Bange, H.W.
Gibb, S.W.
Goyet, C.
Hatton, A.D.
Upstill-Goddard, R.C.
 
Subject biogeochemical cycles
biogenic material
atmospheric gases
ocean-atmosphere system
air-sea interaction
air-water exchanges
hydrography
 
Description Transfers of some important biogenic atmospheric constituents, carbon dioxide (CO sub (2)), methane (CH Sub (4)), molecular nitrogen (N sub (2)), nitrous oxide (N sub (2) O), nitrate NO super(-) sub (3) , ammonia (NH sub(3)), methylamines (MAs)and dimethylsulphide (DMS),across the air-sea interface are investigated using published data generated mostly during the Arabian Sea Process Study (1992 -1997) of the Joint Global Ocean Flux Study (JGOFS).The most important contribution of the region to biogeochemical fluxes is through the production of N sub (2) and N sub (2) O facilitated by an acute, mid-water deficiency of dissolved oxygen (O sub (2) );emissions of these gases to the atmosphere from the Arabian Sea are globally significant. For the other constituents, especially CO sub (2), even though the surface concentrations and atmospheric fluxes exhibit extremely large variations both in space and time, arising from the unique physical forcing and associated biogeochemical environment, the overall significance in terms of their global fluxes is not much because of the relatively small area of the Arabian Sea. Distribution and air-sea exchanges of some of these constituents are likely to be greatly influenced by alterations of the subsurface O sub (2) field forced by human-induced eutrophication and/or modifications to the regional hydrography.
 
Date 2008-02-22T04:47:45Z
2008-02-22T04:47:45Z
2005
 
Type Journal Article
 
Identifier Progress in oceanography, Vol.65; 116-144p.
http://drs.nio.org/drs/handle/2264/899
 
Language en
 
Rights Copyright [2005]. It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice by copyright holder that the rights are voilated then the item would be withdrawn.
 
Publisher Elsevier