Horizon 1 1 17 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES Current Science 966-971 Global warming natural variability sea-level-rise trend satellite altimetry tide-gauges OCEAN INDIEN GOLFE DU BENGALE 2015 fdi:010064090 ENG Current Science 0011-3891 ISI:000351879200040 5 https://www.documentation.ird.fr/hor/fdi:010064090 https://www.documentation.ird.fr/intranet/publi/2015/05/010064090.pdf 108 Horizon (IRD) 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 UR182 Inde