Blarel F. auteur aut IRD Frappart F. auteur aut IRD Legresy B. auteur aut IRD Blumstein D. auteur aut IRD Remy F. auteur aut IRD Fatras C. auteur aut IRD Mougin E. auteur aut IRD Papa Fabrice auteur aut IRD Prigent C. auteur aut IRD Nino Fernando auteur aut IRD Borderies P. auteur aut IRD Biancamaria S. auteur aut IRD Calmant Stéphane auteur aut IRD text bookSection eng text/pdf born digital access Satellite radar altimetry, initially designed for studying ocean surface topography, demonstrated a strong potential for the continuous monitoring of ice sheets and land surfaces over the last 25 years. If radar altimetry is mostly used for its capacity to determine surface height, the backscattering coefficients provide information on the surface properties. Spatio-temporal variations of radar altimetry backscattering over land and ice sheets were related to the nature of the surface and its changes against time. This study presents the results of an along-track analysis of radar altimetry echoes over land, Antarctica and Greenland at Ku and S bands from June 2002 to July 2003 using the ERS-2 and ENVISAT datasets on their nominal orbit during the tandem phase of the two missions. Temporal average and deviations are presented at global scale for ascending and descending tracks for the two missions. specialized ANTARCTIQUE GROENLAND 126 062 072 Neale C. M. U. ed. edt IRD Maltese A. ed. edt IRD 9637 art. no 963727 [10 en ligne] Bellingham SPIE 2015 Conference on Remote Sensing for Agriculture Ecosystems and Hydrology : part of the International Symposium on Remote Sensing, 17., Toulouse (FRA), 2015/09/22-24 9637 https://www.documentation.ird.fr/hor/fdi:010072195 10.1117/12.2194498 978-1-62841-847-7 [F B010072195] https://www.documentation.ird.fr/hor/fdi:010072195 https://www.documentation.ird.fr/intranet/publi/depot/2018-02-09/010072195.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2018-02-08 2018-05-16 fdi:010072195 fre