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Hydrological characteristics and transequatorial transport in the west Indian Ocean

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Title Hydrological characteristics and transequatorial transport in the west Indian Ocean
 
Creator Premchand, K.
Sastry, J. S.
 
Description 169-178
Analysis of distribution of temperature, salinity, thermosteric anomaly and oxyty of the data collected by R.V. Atlantis-2 in the southwest Indian Ocean has revealed the following features: Salinity minimum of the Antarctic Intermediate Water progressively increases from 34.8% at about 10° S and the thickness of the salinity minimum layer increases towards north. Salinity minimum is conspicuously absent over most of the equatorial region of the south Indian Ocean. Thickness of the Sub-tropical Subsurface Water decreases towards north. A layer of an oxyty maximum which is very clearly defined in the northern regions, is associated with the Subtropical Subsurface Water. South Equatorial Current, at it approaches Malagasy, splits into 3 branches: northern,central and southern. The northern branch, primarily consisting of water of equatorial Pacific Origin, turns north and merges with a huge clockwise cell. The central branch, consisting of water drawn from the West Australian Current flows towards Africa after bypassing Malagasy and the southern branch flows south along the east coast of Malagasy. After reviewing various theories on the water mass structure in the Somali Basin, it is concluded that salinity minimum and oxyty maximum in the intermediate layers of the Somali Basin occur due to the penetration of the entire water column above salinity minimum of the Antarctic Intermediate water through the central branch of the South Equatorial Current.
 
Date 2017-01-02T08:32:13Z
2017-01-02T08:32:13Z
1976-12
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/39481
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.05(2) [December 1976]