Integration of GIS and Hierarchical Multi-Criteria Analysis for Mapping Flood Vulnerability
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Date
2022
Authors
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Journal ISSN
Volume Title
Publisher
Université de M'sila
Abstract
This paper proposes the integration of GIS (Geographic
Information System ) and HMA (Hierarchical Multi-criterion
Analysis) offering a low-cost methodology to produce
vulnerability maps. The quintessential role the rivers play in
urban development has long been asserted and accepted.
However, one of the subsequent consequences of these urban
development activities is the increased frequency of floods. The
case in point is the city of M’sila, Algeria. The subject city was
settled along the banks of a river known as Oued El Ksob, which
undoubtedly had a significant influence on its development. In
the last 50 years, M’sila has experienced significant spatial
growth, especially in its north and northwest sides. As such, the
work presented in this article aims to assess the vulnerability of
the city to the risks of flooding. The approach used is based on
the combined use of the HMA method coupled with the GIS. The
process allowed the graphical representation of the resulting
analysis of complex data of the territory, i.e. the mapping of its
vulnerability to flooding. The map has four vulnerability
categories ranging from low to very strong. The proposed system
serves as an essential decision-making tool for local government
officials.
Description
Keywords
flood risk; vulnerability; GIS; hierarchical multicriteria analysis; M'sila city