Crétaux J. F. auteur aut IRD Jelinski W. auteur aut IRD Calmant Stéphane auteur aut IRD Kouraev A. auteur aut IRD Vuglinski V. auteur aut IRD Bergé Nguyen M. auteur aut IRD Gennero M. C. auteur aut IRD Nino Fernando auteur aut IRD Del Rio R. A. auteur aut IRD Cazenave A. auteur aut IRD Maisongrande P. auteur aut IRD text journalArticle eng text/pdf born digital access An accurate and continuous monitoring of lakes and inland seas is available since 1993 thanks to the satellite altimetry missions (Topex-Poseidon, GFO, ERS-2, Jason-1, Jason-2 and Envisat). Global data processing of these satellites provides temporal and spatial time series of lakes surface height with a decimetre precision on the whole Earth. The response of water level to regional hydrology is particularly marked for lakes and inland seas in semi-arid regions. A lake data centre is under development at by LEGOS (Laboratoire d'Etude en Geophysique et Oceanographie Spatiale) in Toulouse, in coordination with the HYDROLARE project (Headed by SHI: State Hydrological Institute of the Russian Academy of Science). It already provides level variations for about 150 lakes and reservoirs, freely available on the web site (HYDROWEB: http://www.LEGOS.obs-mip.fr/soa/hydrologie/HYDROWEB), and surface-volume variations of about 50 big lakes arc also calculated through a combination of various satellite images (Modis, Asar, Landsat, Cbers) and radar altimetry. The final objective is to achieve in 2011 a fully operating data centre based on remote sensing technique and controlled by the in situ infrastructure for the Global Terrestrial Network for Lakes (GTN-L) under the supervision of WMO (World Meteorological Organization) and GCOS (Global Climate Observing System). specialized Lake Database Radar altimetry Satellite imagery Essential climate variable 126 032 021 47 9 1497-1507 2011 0273-1177 https://www.documentation.ird.fr/hor/fdi:010053534 10.1016/j.asr.2011.01.004 0273-1177 [F B010053534] https://www.documentation.ird.fr/hor/fdi:010053534 https://www.documentation.ird.fr/intranet/publi/2011/05/010053534.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2011-05-31 2024-04-29 fdi:010053534 fre