Hydrologic Evaluation of Landfill Performance

HELP (Hydrologic Evaluation of Landfill Performance) is a hydrologic numerical model developed by the United States Environmental Protection Agency for landfills.^[1] The model uses a water-balance approach to model evapotranspiration and drainage through soil layers.

Versions

Public domain (free) version:
- HELP 3.07 – DOS executable, as well as most of the Fortran source code and user manuals^[1]
Commercial versions:
- Visual HELP – based on the HELP version 3.07 codebase, offers a Microsoft Windows GUI to view and edit soil profiles.
- HELP 3.95 D – by Dr. Klaus Berger at the University of Hamburg; offers a Microsoft Windows UI and includes the model HELP 3.07 and the enhanced model HELP 3.95 D.

References

1 2 Schroeder, P.R. and Dozier, T.S. and Zappi, P.A. and McEnroe, B.M. and Sjostrom, J.W. and Peyton, R.L. (1994). The Hydrologic Evaluation of Landfill Performance (HELP) model: Engineering documentation for version 3. Washington, DC: U.S. Environmental Protection Agency Office of Research and Development.

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