Department of Geography and GIS Faculty of Arts and Humanities King Abdulaziz University Jeddah Saudi Arabia;
Physical Geography Laboratory (LGP) UMR 8591 CNRS University Paris-1 and University Paris-Est 1 place Aristide Briand Meudon Cedex France;
Department of Geology Faculty of Sciences Taibah University Al-Madinah Al-Munawarah Saudi Arabia;
Landscape Morphology; SAR; DInSAR; Wadi Awsat; Wadi Nisah; Riyadh City;