Unnikrishnan A. S. auteur aut IRD Nidheesh A. G. auteur aut IRD Lengaigne Matthieu auteur aut IRD text journalArticle eng text/pdf born digital access 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. specialized Global warming natural variability sea-level-rise trend satellite altimetry tide-gauges OCEAN INDIEN GOLFE DU BENGALE 032 108 5 966-971 2015 0011-3891 https://www.documentation.ird.fr/hor/fdi:010064090 0011-3891 [F B010064090] https://www.documentation.ird.fr/hor/fdi:010064090 https://www.documentation.ird.fr/intranet/publi/2015/05/010064090.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2015-06-04 2017-08-23 fdi:010064090 fre