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dc.contributor.authorDeSousa, S.N.
dc.contributor.authorSardessai, S.
dc.contributor.authorRameshBabu, V.
dc.contributor.authorMurty, V.S.N.
dc.contributor.authorGupta, G.V.M.
dc.date.accessioned2009-01-07T10:21:24Z
dc.date.available2009-01-07T10:21:24Z
dc.date.issued2001
dc.identifier.citationDeep-Sea Research (II: Topical Studies in Oceanography), Vol.48; 3343-3352p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/1535
dc.description.abstractChemical properties of the water column were examined at the Indian Deep-sea Environment Experiment (INDEX) site in the Central Indian Basin (CIB), as a part of baseline studies prior to the benthic disturbance experiment for the environmental impact assessment of mining of polymetallic nodules. The study shows three equatorward moving water masses. (1) The Subsurface Salinity Maximum in the depth range 125-200 m, characterized by high salinity (34.74-34-77 psu) and oxygen minimum associated with weak maxima in nutrients. (2) The Deep Oxygen Maximum (234-245 mu M) in the depth range 250-750 m, associated with minima in nutrients and relatively high pH. 93) The Salinity Minimum Water (34.714-34.718 psu) corresponding to the Antarctic Intermediate Water (AAIW) at depths 800-1200 m in the density (sigma-theta) range 27.2-27.5. Progressive changes in these characteristics are attributed to mixing with waters above and below, and to oxidation of organic detritus en routs. Among the three water masses, the oxygen maximum water shows the lowest changes in its properties, which may suggest that this water mass is moving the fastest
dc.language.isoen
dc.publisherPergamon
dc.rightsCopyright [2001]. 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.
dc.subjectwater column
dc.subjectchemical properties
dc.subjectbaseline studies
dc.subjectwater masses
dc.subjectwater properties
dc.subjectsummer
dc.titleChemical characteristics of Central Indian Basin waters during the southern summer
dc.typeJournal Article


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