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Equatorial jet - a case study

DRS at CSIR-National Institute of Oceanography

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Title Equatorial jet - a case study
 
Creator Muraleedharan, P.M.
PrasannaKumar, S.
 
Description Detailed EOF analysis of wind data reportEd. by Wunsch over Gan (00 degrees 41'S; 73 degrees 10'E) is made for the period 1963-70. The year 1964, which exhibited least variability from mean wind structure, has been chosen for the case study. EOF analysis of hydrographic data of 1964 is also carried out to understand the response signature of water column to prevailing westerlies. A jet forms in the Central Indian Ocean which gathers momentum as it advances eastward. Sinking of the thermocline and formation of a subsurface high salinity core are, apparently, manifestations of vertical advection of momentum associated with the jet. The driving force behind the equatorial undercurrent in the Indian Ocean ceases to exist in May, causing undercurrent to rebound at east coast and produce an opposite flow at the subsurface depth. Absence of a high salinity core during May-June may be accounted for by enhanced mixing at equator arising out of shear produced at the boundary of 2 opposing currents
 
Date 2009-05-08T12:17:53Z
2009-05-08T12:17:53Z
1992
 
Type Journal Article
 
Identifier Indian Journal of Marine Sciences, Vol.21; 35-45p.
http://drs.nio.org/drs/handle/2264/3153
 
Language en
 
Rights Copyright [1992]. 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.
 
Publisher NISCAIR, New Delhi