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Oxygen minimum zone of the open Arabian Sea: variability of oxygen and nitrite from daily to decadal timescales.

Banse, K.; Naqvi, S.W.A.; Narvekar, P.V.; Postel, J.R.; Jayakumar, D.A. (European Geosciences Union, 2014)

The oxygen minimum zone (OMZ) of the Arabian Sea is the thickest of the three oceanic OMZ. It is of global biogeochemical significance because of denitrification in the upper part leading to N<SUB>2</SUB> and N<SUB>2</SUB>O ...

Seasonal oxygen deficiency over the western continental shelf of India

Naqvi, S.W.A.; Naik, H.; Jayakumar, D.A.; Shailaja, M.S.; Narvekar, P.V. (Springer, 2006)

The North Indian Ocean contains about two-third of the global continental-margin area affected by natural oxygen deficiency (O2 less than 0.2 mL L sup(-1)) in the water column. Also, the littoral countries of this ...

Increased marine production of N sub(2)O due to intensifying anoxia on the Indian continental shelf

Naqvi, S.W.A.; Jayakumar, D.A.; Narvekar, P.V.; Naik, H.; Sarma, V.V.S.S.; DeSouza, W.; Joseph, S.; George, M.D. (Macmillan, 2000)

Eutrophication of surface waters and hypoxia in bottom waters has been increasing in many coastal areas, leading to very large depletions of marine life in the affected regions. These areas of high surface productivity and ...

An intermediate nepheloid layer associated with high microbial metabolic rates and denitrification in the northwest Indian Ocean

Naqvi, S.W.A.; DileepKumar, M.; Narvekar, P.V.; DeSousa, S.N.; George, M.D.; DeSilva, C. (American Geophysical Union, 1993)

Extensive optical, physical chemical, and biochemical measurements made simultaneously in the northwest Indian Ocean reveal the occurrence of an intermediate nepheloid layer (INL) invariably associated with the secondary ...

Nitrogen isotopic studies in the suboxic Arabian Sea

Naqvi, S.W.A.; Yoshinari, T.; Brandes, J.A.; Devol, A.H.; Jayakumar, D.A.; Narvekar, P.V.; Altabet, M.A.; Codispoti, L.A. (Indian Academy of Sciences, Bangalore, India, 1998)

Measurements of sup(15)N/ sup(14)N in dissolved molecular nitrogen (N sub(2)), nitrate (NO sub(3) sup(-)) and nitrous oxide (N sub(2)O) and sup(18)O/ sup(16)O in N sub(2)O [expressed as delta sup(15)N and delta sup(18)O, ...