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Why is mean sea level along the Indian coast higher in the Bay of Bengal than in the Arabian Sea?

DRS at CSIR-National Institute of Oceanography

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Title Why is mean sea level along the Indian coast higher in the Bay of Bengal than in the Arabian Sea?
 
Creator Shankar, D.
Shetye, S.R.
 
Subject Great Trigonometrical Survey of India
Mean Sea Level
Monsoon
Indian Ocean
Circulation
Salinity
 
Description Levelling observations conducted during the Great Trigonometrical Survey of India (1858-1909) and subsequent observations showed that mean sea level along the coast of India is higher in the Bay of Bengal than in the Arabian Sea, the difference in sea level between Vishakhapatnam and Mumbai (Bombay) being about 30 cm. Using simulations with a 1.5-layer reduced-gravity model, we attribute this to the mean, large-scale wind-forced circulation (~60%) and the alongshore gradient in salinity (~40%). The former (latter) is a consequence of the distribution of wind stress (rainfall) because of the monsoon.
Department of Ocean Development
 
Date 2006-03-23T05:02:49Z
2006-03-23T05:02:49Z
2001
 
Type Journal Article
 
Identifier Geophysical Research Letters, vol. 28(4), 563-565.
http://drs.nio.org/drs/handle/2264/19
 
Language en
 
Rights An edited version of this paper was published by AGU. Copyright [2001] American Geophysical Union
 
Format 198046 bytes
application/pdf
 
Publisher Americal Geophysical Union