Hazard Assessment of Debris Flows in the Reservoir Region of Wudongde Hydropower Station in China

Cencen Niu, Qing Wang, Jianping Chen, Wen Zhang, Liming Xu and Ke Wang
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Cencen Niu: College of Construction Engineering, Jilin University, Ximinzhu Street 938, Changchun 130000, China
Qing Wang: College of Construction Engineering, Jilin University, Ximinzhu Street 938, Changchun 130000, China
Jianping Chen: College of Construction Engineering, Jilin University, Ximinzhu Street 938, Changchun 130000, China
Wen Zhang: College of Construction Engineering, Jilin University, Ximinzhu Street 938, Changchun 130000, China
Liming Xu: The Third Railway Survey and Design Institute Group Corporation, Tianjin 300143, China
Ke Wang: Jilin Institute of Geological Environment Monitoring, Changchun 130000, China

Sustainability, 2015, vol. 7, issue 11, 1-20

Abstract: The outbreak of debris flows in a reservoir region can affect the stability of hydropower stations and threaten the lives of the people living downstream of dams. Therefore, determining the hazard degree of debris flows in a reservoir region is of great importance. SPOT5 remote sensing images and digital elevation models are introduced to determine the characteristics of debris-flow catchments. The information is acquired through comprehensive manual investigation and satellite image interpretation. Ten factors that influence debris flow are extracted for the hazard assessment. The weight of these factors is determined using the analytic hierarchy process method. As a multi-criterion decision analysis method, fuzzy synthetic evaluation is applied for hazard assessment.

Keywords: debris flow; SPOT5; digital elevation model; analytic hierarchy process; fuzzy synthetic evaluation; hazard assessment (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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