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

IR@NIO: CSIR-National Institute Of Oceanography, Goa

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Field Value
 
Creator Shankar, D.
Shetye, S.R.
 
Date 2006-03-23T05:02:49Z
2006-03-23T05:02:49Z
2001-02-15
 
Identifier Geophysical Research Letters, vol. 28(4), 563-565.
http://drs.nio.org/drs/handle/2264/19
 
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
 
Format 198046 bytes
application/pdf
 
Language en
 
Publisher Americal Geophysical Union
 
Rights An edited version of this paper was published by AGU. Copyright [2001] American Geophysical Union
 
Subject Great Trigonometrical Survey of India
Mean Sea Level
Monsoon
Indian Ocean
Circulation
Salinity
 
Title Why is mean sea level along the Indian coast higher in the Bay of Bengal than in the Arabian Sea?
 
Type Article