Risk Assessment of Flood Disaster in Sichuan Province Based on GIS

نویسندگان

چکیده

In the context of global climate change, flood disaster has become one significant disasters endangering human life. Sichuan Province more annual precipitation and complex landforms, which suffer from yearly floods. To reveal spatial distribution spatiotemporal dynamic change characteristics, we developed a risk assessment model based on geographic information systems natural theory. Considering both factors, precipitation, terrain, type, population, GDP are selected as evaluation indexes. We Used expert score-AHP method to obtain regionalization 2017 2021. end, results were compared with entropy weight in objective weighting method. The showed that comprehensive is higher east lower west. eastern hill area, Panxi northeast Basin generally higher. contrast, west Plateau lower. Based results, it found scoring-AHP line actual situation.

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ژورنال

عنوان ژورنال: E3S web of conferences

سال: 2023

ISSN: ['2555-0403', '2267-1242']

DOI: https://doi.org/10.1051/e3sconf/202340604008