%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Unnikrishnan, A. S.
%A Nidheesh, A. G.
%A Lengaigne, Matthieu
%T Sea-level-rise trends off the Indian coasts during the last two decades
%D 2015
%L fdi:010064090
%G ENG
%J Current Science
%@ 0011-3891
%K Global warming ; natural variability ; sea-level-rise trend ; satellite ; altimetry ; tide-gauges
%K OCEAN INDIEN ; GOLFE DU BENGALE
%M ISI:000351879200040
%N 5
%P 966-971
%U https://www.documentation.ird.fr/hor/fdi:010064090
%> https://www.documentation.ird.fr/intranet/publi/2015/05/010064090.pdf
%V 108
%W Horizon (IRD)
%X 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.
%$ 032