Title
A Simple Deposition Model for Debris Flow Simulation Considering the Erosion-Entrainment-Deposition Process
Abstract
This study aimed to determine the depositional effect and improve the identification of debris flow risk zones. To accomplish this goal, we developed a two-dimensional debris flow model (Deb2D) based on a hyperbolic conservation form of the mass and the momentum balance equation with consideration of the erosion-entrainment effect as well as the depositional effect. In this model, we implemented a widely-used rheological equation-the Voellmy equation-and a quadtree adaptive grid-based shallow-water equation. This model was applied to two study sites to assess the depositional effect. The impact area, volume of soil loss, maximum velocity, inundated depth, and erosion depth resulting from the debris-flow modeling were compared with the field data. The simulation results with/without deposition were evaluated using the receiver operating characteristic method. The implementation results of the erosion-entrainment model with deposition showed superior accuracy when estimating the damage range and flow time.
Year
DOI
Venue
2022
10.3390/rs14081904
REMOTE SENSING
Keywords
DocType
Volume
landslides, debris flow, depositional effect, erosion-entrainment
Journal
14
Issue
ISSN
Citations 
8
2072-4292
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Seungjun Lee100.34
Hyunuk An200.68
Minseok Kim300.34
Hyuntaek Lim400.68
Yongseong Kim500.68