Issue |
E3S Web Conf.
Volume 607, 2025
6th International Conference of GIS USERS (ERRACHIDIA GIS-USERS’2024)
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Article Number | 04009 | |
Number of page(s) | 7 | |
Section | Climate Change-Environment-Natural Hazards | |
DOI | https://doi.org/10.1051/e3sconf/202560704009 | |
Published online | 22 January 2025 |
Using GIS and Analytical Hierarchy Process (AHP) for flood hazard assessment based on morphological and hydrological criteria, case of the Meknes region, Morocco
1 Research group water sciences and environmental engineering, Geoengineering and Environment Laboratory, Department of Geology, Faculty of Sciences, Moulay Ismail University, Zitoune, B.P11201, Meknes, Morocco.
2 ITC-CNR, Construction Technologies Institute, National Research Council, 70124 Bari, Italy.
3 National Institute for Scientific and Technological Research in Water, University Ibn Zohr – Agadir.
4 Geography and Tourism Research Group, Department of Earth and Environmental Sciences, KU Leuven, Celestijnenlaan 200E, 3001 Heverlee, Belgium.
* Corresponding author: narjisse.essahlaoui@edu.umi.ac.ma
Flooding is one of the most significant natural disasters affecting North Africa. Its impact is increasingly intensified by climate change. Flood risk is a combination of natural and anthropogenic factors, highlighting the importance of understanding its spatial distribution in order to plan effective land management strategies. The main aim of this study is to identify and map areas at risk of flooding in the R'dom catchment area (Meknes, Morocco). This hazard is assessed by taking into account morphological criteria (slope, altitude, density of the hydrographic network, curvature) and hydrological criteria (drainage density, stream power index (SPI) and rainfall data). The methodology adopted is essentially based on a multicriteria analysis using analytical hierarchy process (AHP), with the use of GIS tools and satellite data. A flood hazard map was drawn up, with classification according to degree of susceptibility. The resulting map reveals that 26.3% of the study area is characterized by a high to very high flood hazard. Moderate flood risk accounts for 56.9% of the study area. These results underline the crucial need to implement effective flood mitigation strategies to protect communities from flooding.
Key words: Meknes / GIS / AHP / morphologic / hydrologic / hazard flood
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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