Submerged area of typical torrential flood and debris-flow disasters in Mengzong Gully, China

Authors

Ai-Di Huo, Chang’an University & Institute of Water Resources and Hydro-power Research & Chang’an University
Wen-Ke Guan, Xinjiang Academy of Forestry
Jian Dang, Chang’an University
Tian-Zhong Wu, Xinjiang Academy of Forestry
Hainiken Shantai, Xinjiang Academy of Forestry
Wei Wang, Northwest Institute of Forest Inventory
Michael W. Van Liew, University of Nebraska-Linco

Date of this Version

5-10-2016

Citation

2016 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group

Comments

GEOMATICS, NATURAL HAZARDS AND RISK, 2016 VOL. 7, NO. S1, 18-24 http://dx.doi.org/10.1080/19475705.2016.1181340

Abstract

The torrential flooding and debris flow disasters associated with global climate change pose not only serious threat to individual lives and property, but also impact economic development. Accurately simulating flood scenarios can help to reduce the losses caused by torrential flooding and debris flow by making early warning, evacuation planning, and risk analysis possible. In this study, HEC-RAS software and HEC-GeoRAS module were employed in GIS (geographic information system) to simulate the flood overtopping in the Mengzong Gully of Batang River in flood scenarios occurring once in 20, 50, and 100 years, respectively. The simulated floods provided valuable information including scope and depth of submersion via 2D visualization.