TITLE:
Contribution of GIS and Multi-Criteria Analysis to the Assessment and Prevention of Flood Risks in the Municipality of Kaffrine, Senegal
AUTHORS:
Alphousseyni Ndonky, Samba Ka, Ismaila Ndiaye
KEYWORDS:
GIS, Hazard, Vulnerability, Risk of Flooding
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.13 No.4,
April
17,
2025
ABSTRACT: Floods are an increasingly recurring phenomenon throughout the world, in Africa and in Senegal. The Kaffrine’s municipality is not spared from this phenomenon which is often the cause of environmental disasters, economic and human lives losses. Despite the strategies put in place, this phenomenon still persists, particularly in Kaffrine’s municipality. Our objective is to contribute to the assessment and prevention of flood risk in the municipality of Kaffrine, through multi-criteria analysis and the geographic information system. The data used comes from surveys, ground surveys, satellite images and public institutions. The use of Saaty’s multi-criteria analysis and the geographic information system made it possible to process and analyze the data. Crossing the vulnerability map and the hazard map made it possible to produce the flood risk map. A significant part of the population (nearly 30%) is exposed to high or very high risk of flooding. This proportion is higher in the north of the study area.