Articles | Volume 15, issue 4
https://doi.org/10.5194/nhess-15-735-2015
https://doi.org/10.5194/nhess-15-735-2015
Research article
 | 
07 Apr 2015
Research article |  | 07 Apr 2015

A comparative assessment of two different debris flow propagation approaches – blind simulations on a real debris flow event

L. M. Stancanelli and E. Foti

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Cited articles

Arattano, M. and Marchi, L.: Measurements of debris flow velocity through cross-correlation of instrumentation data, Nat. Hazards Earth Syst. Sci., 5, 137–142, https://doi.org/10.5194/nhess-5-137-2005, 2005.
Armanini, A., Fraccarollo, L., and Rosatti, G.: Two-dimensional simulation of debris flows in erodible channels, Comput. Geosci., 35, 5, 993–1006, 2009.
Armento, M.C., Genevois, R., and Tecca, P.R.: Comparison of numerical models of two debris flows in the Cortina d'Ampezzo area, Dolomites, Italy, Landslides, 5, 143–150, 2008.
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Baum, R. L., Godt, J. W., and Savage, W. Z.: Estimating the timing and location of shallow rainfall-induced landslides using a model for transient, unsaturated infiltration, J. Geophys. Res., 115, F03013, https://doi.org/10.1029/2009JF001321, 2010.
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The performances of a mono-phase model and of a two-phase model have been evaluated carrying out a blind test. As a benchmark test the event that struck Sicily (2009) was chosen. Prediction accuracies have been evaluated determining statistical indicators and applying the ROC approach. For the simulated event the two-phase model is more accurate than the mono-phase one, though both models show limits when applied in a highly urbanized area, where some constrains cannot be properly reproduced.
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