Geomorphological and hydrodynamic characterization of the Bouanane basin (Eastern Upper Guir, High Atlas of Morocco)

Résumé

The origins of climate change have an increasingly important impact on the management of water resources on a local or global scale. This issue is particularly crucial in arid areas and oases, which are among the most immediately affected in Morocco. The study area is part of the oases eastern High Atlas, extending from the southeastern foothills of the Atlas Mountains to the western edge of the Sahara Desert. The High Atlas highlands receive most of the rainfall and represent the regional recharge area. The geology of the basin consists mainly of jurassic and cretaceous formations. The structure of the basin is strongly affected by the atlasian tectonics. This results in large successive synclines separated by major W-E faults. The objective of this study is to understand the hydrodynamic behavior in the face of meteorological phenomena of Bouanane watershed, the data processing is based on the digital terrain model (DTM) that have been able to define the main characteristic parameters of the basin and trace the watershed boundary and the state of evolution of the watershed by contribution of hypsometry.