Record Details

Upwelling Off the Southwest Coast of India

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Upwelling Off the Southwest Coast of India
 
Creator Sharma, G. S.
 
Description 209-218
Various factors responsible in inducing upwelling are discussed. A distinction is made between the process of upwelling and its effects on the environmental conditions. Upwelling off the southwest coast of India is discussed in relation to the time variation of density structure (sigma ), horizontal divergence of surface current vectors, wind stress components - parallel and perpendicular to the coast, thermal structure and sea level. Upwelling in this region commences in the deeper layers of about 90 m in March and the upwelled water reaches the surface by May. The process continues to occur vigorously till June. From then, with the increase in strength of southwest winds, intensity of upwelling reduces and finally ceases to be present by July/August when the onshore winds of the southwest monsoon have maximum strength. The reverse process, sinking, sets in by September. Vertical velocity, i.e. upwelling, calculated (i) from the vertical shift of the isopycnal with time and (ii) from the average horizontal divergence, is 1.5x10-3 and 1.8x10-3 cm sec-1 respectively.
 
Date 2017-01-03T06:10:14Z
2017-01-03T06:10:14Z
1978-12
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/39557
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.07(4) [December 1978]