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Problems related to single gully debris flow assessment models

Author

Listed:
  • Ying Yuan

    (Hebei Geo University
    Hebei GEO University)

  • Zhi Jie Ning

    (Hebei Geo University)

  • Zhao Hui Zuo

    (Hebei Geo University)

  • Ai Hong Zhou

    (Hebei Geo University
    Hebei GEO University)

  • Chao Liu

    (Hebei Geo University
    Hebei GEO University)

Abstract

In recent years, various models for single gully debris flow assessment have been proposed. Due to various factors affecting the mechanisms of debris flows, these models face many problems during the prediction process. Based on the debris flow data of Yunnan, Yellow River Jishixia Reservoir Area, Beichuan County of Sichuan Province, two typical debris flow evaluation models, gray relation analysis and support vector machine, are used as examples to investigate the problems of parameter selection, sample data imbalance, generalization ability, spatial variability of the debris flow system, and the sample size. Relevant solutions are given to provide guidance for the future application of various single gully debris flow assessment models.

Suggested Citation

  • Ying Yuan & Zhi Jie Ning & Zhao Hui Zuo & Ai Hong Zhou & Chao Liu, 2022. "Problems related to single gully debris flow assessment models," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 110(3), pages 1527-1544, February.
    • Handle: RePEc:spr:nathaz:v:110:y:2022:i:3:d:10.1007_s11069-021-05001-3
    DOI: 10.1007/s11069-021-05001-3
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