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Sea-level-rise trends off the Indian coasts during the last two decades

DRS at CSIR-National Institute of Oceanography

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Title Sea-level-rise trends off the Indian coasts during the last two decades
 
Creator Unnikrishnan, A.S.
Nidheesh, A.G.
Lengaigne, M.
 
Subject OCEANOGRAPHY AND LIMNOLOGY
METEOROLOGY AND CLIMATOLOGY
 
Description The present communication discusses sea-level-rise trends in the north Indian Ocean, particularly off the Indian coasts, based on estimates derived from satellite altimeter and tide-gauge data. Altimeter data analysis over the 1993–2012 period reveals that the rate of sea-level rise is rather spatially homogeneous over most of the north Indian Ocean, reaching values close to global mean sea-level-rise trend (3.2 mm yr–1) estimated over the same period. The only notable exception lies in the northern and eastern coasts of the Bay of Bengal, which experience larger trends (5 mm yr–1 and more). These recent trends derived from altimeter data are higher than those estimated from tide-gauge records over longer periods during the 20th century. This communication calls for an improved understanding of the mechanisms behind this accelerated sea-level-rise recorded over the past two decades, that could either be a direct response to global warming or a result from an aliasing by the natural variability.
 
Date 2015-08-21T07:30:32Z
2015-08-21T07:30:32Z
2015
 
Type Journal Article
 
Identifier Current Science, vol.108(5); 2015; 966-971
http://drs.nio.org/drs/handle/2264/4747
 
Language en
 
Rights Copyright [2015]. 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 Current Science Association