Comparison of Two Empirical Models for Gully-Specific Debris Flow Hazard Assessment in Xiaojiang Valley of Southwestern China

Xilin Liu and Dan Zhang

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2004, vol. 31, issue 1, 157-175

Abstract: Two sets of empirical models for debris flow hazard assessment on gully-specific scale are presented herein, which may be the first step toward developing a formalized procedure for debris flow hazard assessment. Emphasis is put on comparison of the two models between Multiple Factor Composite Assessment Model (MFCAM) and Multivariate Stepwise Regression Assessment Model (MSRAM). From the aspects of data acquisition and model construct, this paper shows the advantages and limitations of two models. From the assessment results, two models are still of uncertainty. Fundamental researches of debris flow hazard, especially the relationship between debris flow magnitude and its frequency of occurrence should be given a priority in future study. Copyright Kluwer Academic Publishers 2004

Keywords: hazard assessment; method comparison; uncertainty; debris flow (search for similar items in EconPapers)
Date: 2004
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DOI: 10.1023/B:NHAZ.0000020274.54664.a0

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