INTEGRATION OF AN MCA-GIS APPROACH FOR THE MODELLING AND ASSESSMENT OF MASS MOVEMENT RISK. CASE OF AЇN EL HAMMAM, BASIN OF TIZI-OUZOU (ALGERIA)
Journal Title: Analele Universitatii din Oradea, Seria Geografie - Year 2018, Vol 28, Issue 2
Abstract
This paper presents a three-step approach to evaluate and map mass movement risk. First, hazard and vulnerability, the two components of mass movement risk, are evaluated through the use of a Weighted Product Method (WPM) borrowed to the Multi-Attribute Utility Theory (MAUT). The model evaluates each potential action a A (set of potential actions) according to a set of attributes, points of view and criteria i, i = 1, ..., n, from gi measurement scales. The criteria retained are environmental factors of susceptibility to landslides and surrounding elements at risk (stakes). In a second phase, the risk is estimated by the product of its two components. Finally, the spatial mass movement risk is determined by crossing the susceptibility (hazard) and consequences (vulnerability) maps. The method has been tested in the area of Aїn el Hammam in the basin of Tizi-Ouzou (Algerian Tell).
Authors and Affiliations
Berchiche RAZIKA, Guettouche MOHAMED SAÏD
Keywords
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