|Model name||TRIGRS model (transient rainfall infiltration and grid based regional slope stability model)|
|Application scope||Basin scale|
|Related websites||Official website Source code File|
|Operating conditions||Windows 64|
|update time||2018-08-15 00:00|
The Transient Rainfall Infiltration and Grid-Based Regional Slope-Stability Model (TRIGRS) is a Fortran program designed for modeling the timing and distribution of shallow, rainfall-induced landslides. The program computes transient pore-pressure changes, and attendant changes in the factor of safety, due to rainfall infiltration. The program models rainfall infiltration, resulting from storms that have durations ranging from hours to a few days, using analytical solutions for partial differential equations that represent one-dimensional, vertical flow in isotropic, homogeneous materials for either saturated or unsaturated conditions. This command-line program is used in conjunction with geographic information system (GIS) software to prepare input grids and visualize model results.
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