Earth Observation and GIS-Based Analysis for Landslide Susceptibility and Risk Assessment

ISPRS International Journal of Geo-Information

Ioannis Charalampopoulos¹  Emmanouil Psomiadis²  Nikos Charizopoulos²  Konstantinos X. Soulis²  Nikolaos Efthimiou³ 

[1] Department of Crop Science, Agricultural University of Athens, 75 Iera Odos st.,11855 Athens, Greece;Department of Natural Resources Management and Agricultural Engineering, Agricultural University of Athens, 75 Iera Odos st., 11855 Athens, Greece;Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha–Suchdol, Czech Republic;

关键词: landslide susceptibility;    GIS-based analysis;    Earth Observation;    human risk mapping;    Sperchios River basin;   

DOI  :  10.3390/ijgi9090552

来源: DOAJ

【 摘 要 】

Landslides can cause severe problems to the social and economic well-being. In order to effectively mitigate landslide hazards, the development of detailed susceptibility maps is required, towards implementing targeted risk management plans. This study aims to create detailed landslide susceptibility (LS) and landslide risk (LR) maps of the Sperchios River basin by applying an expert semi-quantitative approach that integrates the Geographic Information Systems (GIS)-based multicriteria analysis and Earth Observation (EO) data. Adopting the analytic hierarchy process (AHP) for a weighted linear combination (WLC) approach, eleven evaluation parameters were selected. The results were validated using a historic landslide database, enriched with new landslide locations mapped by satellite and aerial imagery interpretation and field surveys. Moreover, the landslide risk map of the area was also developed, based on the LS delineation, considering additionally the anthropogenic exposure and overall vulnerability of the area. The results showed that the most susceptible areas are located at the west and south-west regions of the basin. The synergistic use of GIS-based analysis and EO data can provide a useful tool for the design of natural hazards prevention policy at highly susceptible to risk landslide risk areas.

【 授权许可】

Unknown