E3S Web Conf.
Volume 298, 20211st International Congress on Coastal Research (ICCR 2020)
|Number of page(s)||4|
|Section||Coastal Hazards and Risk Assessment|
|Published online||05 August 2021|
Flood Hazard Mapping in Rural Area: Case of Ephemeral Watercourses in SidiBoulenouar Zone
1 Applied Geosciences Laboratory "LGA", Department of Geology, Faculty of Sciences Oujda - FSO, Mohammed Premier University, Oujda.
2 Research and Development in Engineering Sciences Laboratory "LRDSI", Department of Earth and Environmental Sciences, Faculty of Science and Technology Al Hoceima - FSTH, Abdelmalek Essaadi University.
* Corresponding author: email@example.com
The eastern region of Morocco is characterized by an arid to semi-arid climate. It is often confronted with heavy rainfall episodes that can generate floods that can cause adverse human and property damage. This work studies hydrological risk in the SidiBoulenouar area (Oujda province) to model floods and map risk areas. The method used is to determine the watersheds and their watercourses, then to calculate the flows with the mathematical formulas. Topographic data were extracted from a 12.5-m resolution DEM derived from the ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer). GDEM (Global DEM). The DEM was used to delimit the hydrographic network with ArcMap software. The use of HEC RAS 1D was necessary to delimit the flooding area. The results of the 1D hydraulic modeling of the centennial flood showed that four ephemeral watercourses landlock the rural area of SidiBoulenouar at the time of the floods.
© The Authors, published by EDP Sciences, 2021
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