Boudhar A. auteur aut IRD Duchemin Benoît auteur aut IRD Hanich L. auteur aut IRD Jarlan Lionel auteur aut IRD Chaponniere A. auteur aut IRD Maisongrande P. auteur aut IRD Boulet Gilles auteur aut IRD Chehbouni Abdelghani auteur aut IRD text journalArticle eng text/pdf born digital access The High-Atlas Mountainous region in Morocco is a true Water tower for the neighbouring arid plains, where the water resources at e intensively and increasingly Subjected to exploitation for agriculture and tourism In order to manage this resource sustainably, it is necessary to describe accurately all the processes that contribute to the hydrological cycle of the area. and, in particular, to know the respective contributions of liquid and solid precipitations to runoff In this context, a seven-year time series of SPOT-VEGETATION images is used for mapping snow-covered areas The spatial and temporal variations of the snow cover are analyzed for the entire High-Atlas region as well as by altitudinal zones The spatial distribution of snow-covered areas appears logically controlled by elevation. and its temporal fluctuations can be clearly used to identify dry and wet seasons In addition, a possible control of snowfalls by the Northern Atlantic climate variability, and, in particular, the North Atlantic Oscillation, is highlighted Finally, this Study Shows how satellite remote sensing can be useful for the long-term observation of the intra- and inter-annual variability of snowpacks in rather inaccessible regions where the network of meteorological stations is deficient (C) 2009 Elsevier B V All rights reserved specialized High-Atlas Snow cover Optical remote sensing SPOT-VEGETATION Snow Index Nival hydrology 021 126 12 Suppl. 1 S109-S115 2010 0303-2434 https://www.documentation.ird.fr/hor/fdi:010049390 10.1016/j.jag.2009.09.008 0303-2434 [F B010049390] https://www.documentation.ird.fr/hor/fdi:010049390 https://www.documentation.ird.fr/intranet/publi/2010/04/010049390.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2010-05-03 2017-08-23 fdi:010049390 fre