The applicability of several empirical equations is compared with available field and laboratory data, and scaling considerations are used to discuss the variability of the parameters over a large range of values. In a possible procedure, an assessment of a maximum debris-flow volume may be followed by estimates of the peak discharge, the mean flow velocity, the total travel distance, and the runout distance on the fan. ![]() Thus, an overview is given of empirical relationships that can be used to estimate the most important parameters of debris-flow behavior. Due to the complexity of the debris-flow process, numerical simulation models of debris flows are still limited with regard to practical applications. ![]() The assessment of the debris flow hazard potential has to rely on semi-quantitative methods.
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