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Debris Flow Susceptibility Assessment at a Regional Scale Based on Flow-R Model (China)

  • Yinping Nie
  • Xiuzhen LiEmail author
Conference paper
Part of the Advances in Science, Technology & Innovation book series (ASTI)

Abstract

After determining the thresholds value of sources identification and the parameters of propagation, the Flow-R was used to simulate the potential hazard range of Bayi Gully debris flow. Then the simulation results were evaluated using the confusion matrix. Finally, the susceptibility of Bayi gully debris flow was assessed. The results show: (1) The small catchment channels at the top of the gullies provide rich sources for debris flow, (2) The sensitive areas are distributed roughly within the range of 40 m on both sides of channels and account for 20.06% of the study area, (3) The very high areas are distributed in the center of the channels and account for 50.38% of the sensitive areas. The susceptibility gradually decreases from the center of the channel to both sides.

Keywords

Debris flow Susceptibility assessment Confusion matrix Flow-R Bayi gully 

References

  1. 1.
    Horton, P., Jaboyedoff, M., Rudaz, B., et al.: Flow-R, a model for susceptibility mapping of debris flows and other gravitational hazards at a regional scale. Nat. Hazards Earth Syst. Sci. 13(4), 869–885 (2013)CrossRefGoogle Scholar
  2. 2.
    Park, D.W., Lee, S.R., Vasu, N.N., et al.: Coupled model for simulation of landslides and debris flows at local scale. Nat. Hazards 81(3), 1653–1682 (2016)CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengduChina
  2. 2.University of Chinese Academy of SciencesBeijingChina

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