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USGS software for landslide assessments and modeling

TRIGRS

A Fortran-90 Computer program for time-dependent slope stability in response to rainfall infiltration

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Reports

  • Baum, R.L., Savage, W.Z., and Godt, J.W., 2008, TRIGRS—A Fortran program for transient rainfall infiltration and grid-based regional slope-stability analysis, version 2.0: U.S. Geological Survey Open-File Report, 2008-1159, 75 p.
  • Savage, W.Z., Godt, J.W., and Baum, R.L., 2004, Modeling time-dependent aerial slope stability, in Lacerda, W.A., Erlich, M., Fontoura, S.A.B., and Sayao, A.S.F., eds., Landslides-evaluation and stabilization, Proceedings of the 9th International Symposium on Landslides: London, A.A. Balkema Publishers, v. 1, p. 23-36.
  • Savage, W.Z., Godt, J.W., and Baum, R.L., 2003, A model for spatially and temporally distributed shallow landslide initiation by rainfall infiltration, in Rickenmann, D. and Chen, C., eds., Debris-Flow Hazards Mitigation-Mechanics, Prediction, and Assessment: Rotterdam, Millpress (Proceedings of the 3rd International conference on Debris Flow Hazards, Davos, Switzerland, September 10-13, 2003), p. 179-187.
  • Baum, R.L., Savage, W.Z., and Godt, J.W., 2002, TRIGRS—A FORTRAN Program for Transient Rainfall Infiltration and Grid-Based Regional Slope-Stability Analysis: U.S. Geological Survey Open-File Report 02-0424, 35 p., 2 appendices.

PTCOUNT

A Fortran-77 Computer Program to Calculate the Areal Distribution of Mapped Data Points Using Count-Circle Methodology

Reports

  • Savage, W.Z., Coe, J.A., Sweeney, R. E., 2001, PTCOUNT — A Fortran-77 computer program to calculate the areal distribution of mapped data points using count-circle methodology, U.S. Geological Survey Open File Report 01-0002, 10 p.

JanbuGS, BishopGS, and FelleniusGS

Fortran-77 programs for limit-equilibrium slope-stability analysis

Reports