Landslide hazard zonation in high risk areas of Rethymno Prefecture, Crete Island, Greece

Maria Kouli (), Constantinos Loupasakis, Pantelis Soupios and Filippos Vallianatos

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2010, vol. 52, issue 3, 599-621

Abstract: The central part of Rethymnon Prefecture, Crete Island, suffers from severe landslide phenomena because of its geological and geomorphological settings alternated by the human activities. The main landslide preparatory and triggering causal factors are considered to be the ground conditions (lithology), geomorphological processes (fluvial erosion, etc.), and the man-made actions (excavations, loading etc.). The purpose of this study is to develop a decision support and continuous monitoring system of the area by composing landslide hazard and risk maps. For that reason, several approaches of the weighted linear combination (WLC), a semi-quantitative hazard analysis method, were adopted in a Geographic Information Systems (GIS) environment. The results were validated using a pre-existing landslide database enriched with new landslide locations mapped through image interpretation of a processed IKONOS satellite image. The validation results showed that the WLC method coupled with remote sensing (RS) and GIS techniques can support engineering geological studies concerning landslide vulnerability of hazardous areas. Copyright Springer Science+Business Media B.V. 2010

Keywords: Landslide hazard zonation; GIS; Satellite images; Rethymnon area; Crete Island (search for similar items in EconPapers)
Date: 2010
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DOI: 10.1007/s11069-009-9403-2

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