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Evolution of extreme high waters along the east coast of India and at the head of the Bay of Bengal

DRS at CSIR-National Institute of Oceanography

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Title Evolution of extreme high waters along the east coast of India and at the head of the Bay of Bengal
 
Creator Antony, C.
Unnikrishnan, A.S.
Woodworth, P.L.
 
Subject OCEANOGRAPHY AND LIMNOLOGY
OCEANOGRAPHY AND LIMNOLOGY
GEOLOGY AND GEOPHYSICS
METEOROLOGY AND CLIMATOLOGY
METEOROLOGY AND CLIMATOLOGY
 
Description The recent evolution of extreme high waters along the severe cyclone-risk coasts of the Bay of Bengal (the east coast of India and Bangladesh) was assessed using long-term (24–34 years) hourly tide gauge data available from five stations. The highest water levels above mean sea level have the greatest magnitude towards the northern part of the Bay, which decreases towards its south-west. Extreme high waters were observed to result from a combination of moderate, or even small, surges with large tides at these stations in most of the cases. Increasing trends, which are significant, were observed in the extreme high waters at Hiron Point, at the head of the Bay. However, the trends in extremes are slightly lower than its mean sea level trend. For the other stations, Cox's Bazaar, Paradip Visakhapatnam and Chennai, no significant trends were observed. At inter-annual time scales, changes in extreme high waters in the Bay of Bengal were found to be influenced by the El Niño Southern Oscillation and the Indian Ocean Dipole
 
Date 2016-05-12T12:34:41Z
2016-05-12T12:34:41Z
2016
 
Type Journal Article
 
Identifier Global and Planetary Change, vol.140; 2016; 59-67
no
http://drs.nio.org/drs/handle/2264/4966
 
Language en
 
Relation Global_Planet_Change_140_59.jpg
 
Rights An edited version of this paper was published by Elsevier. Copyright [2016] Elsevier
 
Publisher Elsevier