Record Details

Chemical oceanography of the Indian Ocean, North of the equator

DRS at CSIR-National Institute of Oceanography

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Field Value
 
Title Chemical oceanography of the Indian Ocean, North of the equator
 
Creator SenGupta, R.
Naqvi, S.W.A.
 
Subject Chemistry and Biogeochemistry
nutrients (mineral)
denitrification
thermocline
dissolved oxygen
water masses
upwelling
chemical oceanography
ISW, Indian Ocean
 
Description Chemical oceanographic studies in the North Indian Ocean have revealed several interesting and unique features. Dissolved oxygen northern boundary, prevents quick renewal of subsurface reducing conditions prevail at intermediate depths (ca. 150-1200m) resulting in the reduction of nitrate (denitrification). The North Indian Ocean may contribute up to 10% of the global marine denitrification. The "denitrified" nitrogen, when combined with the rate of photo synthetic production reaching below the euphotic zone, gives the average residence time the subsurface layers are very high in close proximity of the euphotic zone, gives the average residence time of water between 75 and 1200m as 43-51d years. The inorganic nutrient concentrations in the subsurface layers are very high in close proximity of the euphotic zone
 
Date 1995-05-16T10:01:02Z
2017-09-29T13:48:29Z
1995-05-16T10:01:02Z
2017-09-29T13:48:29Z
1984
 
Type Journal Article
 
Identifier Deep Sea Research, vol.31; 1984; 671-706
0198-0149
http://drs.nio.org/drs/handle/2264/6410
 
Language en
 
Relation Deep-Sea Res
SCI
 
Publisher Elsevier