Cartographie du risque d’inondation en zone semi-aride : cas du bassin versant d’oued Meskiana (Oum el Bouaghi – Algérie)
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Date
2019
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Publisher
Université Abbes Laghrour -Khenchela-
Abstract
Abstract:
The aim of this work is the identification and mapping of areas at risk of flooding in the Oued Meskiana
watershed located east of Oum El-Bouaghi .This work is based on the integration of data from satellite
images, digital terrain model (DTM), hydrological and geological data into a geographic information
system (GIS).
The main factors taken into account in this study are : slope, altitude, soil texture, drainage density,
land use and population density. The spatial analysis carried out in a GIS allowed developing the flood
risk map of the watershed. The risk map obtained has five classes ranging from very low to very high
flood risk. Areas located along Oued Meskiana from upstream to downstream are more exposed to flood
risk.