El Khalki E. auteur aut IRD Tramblay Yves auteur aut IRD Saidi M. E. auteur aut IRD Bouvier Christophe auteur aut IRD Hanich L. auteur aut IRD Benrhanem M. auteur aut IRD Alaouri M. auteur aut IRD text journalArticle eng text/pdf born digital access In the Mediterranean region, floods are causing extended damages to the population and infrastructures. In Morocco, only a few studies have been conducted to understand flood processes while the vulnerability to floods is high. The goals of this study are to compare two modeling approaches for floods using either lumped or spatial rainfall and also to evaluate hydrological forecast capabilities. The Rheraya research catchment is characterized with steep slopes, altitudes ranging from 1027 to 4167 m, and a strong variability of rainfall. The lumped and distributed models provided similar results and reproduced well a sample of six flood events recorded in 2014. However, the distributed model provided the best estimation of the initial conditions, estimated from the ESA-CCI satellite soil moisture product and the Antecedent Precipitation Index. The validation of the lumped and the distributed models, using ESA-CCI to initialize the models, provides a Nash coefficient of 0.61 and 0.63 respectively. Then, two meteorological forecasts provided by the AROME and ALADIN models were evaluated against observed precipitation to provide a hydrological forecast. The AROME forecast performed better but still with a strong bias compared to observed precipitation. Further research is needed to link quantitative precipitation forecasts with hydrological models in this type of catchment. specialized Flood modeling AROME ALADIN ESA-CCI Rheraya High Atlas Morocco MAROC HAUT ATLAS 050 020 11 15 art. 410 [15 p.] 2018 1866-7511 https://www.documentation.ird.fr/hor/fdi:010073686 10.1007/s12517-018-3752-7 1866-7511 [F B010073686] https://www.documentation.ird.fr/hor/fdi:010073686 https://www.documentation.ird.fr/intranet/publi/2018/08/010073686.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2018-09-12 2023-07-11 fdi:010073686 fre