Articles | Volume 20, issue 7
Nat. Hazards Earth Syst. Sci., 20, 1919–1930, 2020
Nat. Hazards Earth Syst. Sci., 20, 1919–1930, 2020
Research article
03 Jul 2020
Research article | 03 Jul 2020

Sensitivity and identifiability of rheological parameters in debris flow modeling

Gerardo Zegers et al.

Related authors

A modeling methodology to study the tributary-junction alluvial fan connectivity during a debris flow event
Alex Garcés, Gerardo Zegers, Albert Cabré, Germán Aguilar, Aldo Tamburrino, and Santiago Montserrat
Nat. Hazards Earth Syst. Sci., 22, 377–393,,, 2022
Short summary

Related subject area

Landslides and Debris Flows Hazards
Landslides caught on seismic networks and satellite radars
Andrea Manconi, Alessandro C. Mondini, and the AlpArray working group
Nat. Hazards Earth Syst. Sci., 22, 1655–1664,,, 2022
Short summary
Variable hydrograph inputs for a numerical debris-flow runout model
Andrew Mitchell, Sophia Zubrycky, Scott McDougall, Jordan Aaron, Mylène Jacquemart, Johannes Hübl, Roland Kaitna, and Christoph Graf
Nat. Hazards Earth Syst. Sci., 22, 1627–1654,,, 2022
Short summary
Assessing the importance of conditioning factor selection in landslide susceptibility for the province of Belluno (region of Veneto, northeastern Italy)
Sansar Raj Meena, Silvia Puliero, Kushanav Bhuyan, Mario Floris, and Filippo Catani
Nat. Hazards Earth Syst. Sci., 22, 1395–1417,,, 2022
Short summary
Brief communication: Introducing rainfall thresholds for landslide triggering based on artificial neural networks
Pierpaolo Distefano, David J. Peres, Pietro Scandura, and Antonino Cancelliere
Nat. Hazards Earth Syst. Sci., 22, 1151–1157,,, 2022
Short summary
Insights from the topographic characteristics of a large global catalog of rainfall-induced landslide event inventories
Robert Emberson, Dalia B. Kirschbaum, Pukar Amatya, Hakan Tanyas, and Odin Marc
Nat. Hazards Earth Syst. Sci., 22, 1129–1149,,, 2022
Short summary

Cited articles

Aguilar, G., Cabré, A., Fredes, V., and Villela, B.: Erosion after an extreme storm event in an arid fluvial system of the southern Atacama Desert: an assessment of the magnitude, return time, and conditioning factors of erosion and debris flow generation, Nat. Hazards Earth Syst. Sci., 20, 1247–1265,, 2020. a
Arattano, M., Franzi, L., and Marchi, L.: Influence of rheology on debris-flow simulation, Nat. Hazards Earth Syst. Sci., 6, 519–528,, 2006. a
Beven, K.: A manifesto for the equifinality thesis, J. Hydrol., 320, 18–36, 2006. a
Boniello, M. A., Calligaris, C., Lapasin, R., and Zini, L.: Rheological investigation and simulation of a debris-flow event in the Fella watershed, Nat. Hazards Earth Syst. Sci., 10, 989–997,, 2010. a, b
Bozkurt, D., Rondanelli, R., Garreaud, R., and Arriagada, A.: Impact of warmer eastern tropical Pacific SST on the March 2015 Atacama floods, Mon. Weather Rev., 144, 4441–4460, 2016. a, b
Short summary
We perform a sensitivity analysis on the parameters of a numerical debris flow model and examine the effects of using post-event measurements on two creeks in Chile. Our results demonstrate the utility of sensitivity analysis in debris flow modeling and the benefits of post-event observations on parameter identifiability. This study provides guidance on the choice of uncertain parameters, contributing to more reliable simulations for debris flow risk assessments and land use planning.
Final-revised paper