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USGS maintains a network of active wells to provide basic statistics about ground-water levels.

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DPM Version 3 - A Deep Percolation Model for Estimating Ground-Water Recharge

The Deep Percolation Model (DPM) is a daily water-budget model for estimating ground-water recharge from precipitation and irrigation. Recharge is defined as the amount of water leaving either the active root zone (deep percolation) or, in the case of bare soils such as sand dunes, the mapped depth of the soil column. DPM is designed to create independent estimates of ground-water recharge for ground-water flow models and can be used at scales ranging from field plots to large regions with variations in climatic, soil, land-use, and land-cover conditions.

DPM is a stand-alone program written in FORTRAN and should run on most computers without modifications.

Downloads

• User's Guide to DPM Version 3 (75 KB pdf)
• DPM v3.0 compiled for Windows XP 32-bit Operating System (executable file, source code, user’s guide, sample data sets, and readme file) (1.27 MB zip file) (updated September 30, 2008)
• DPM v3.0 compiled for Solaris X UNIX Operating System (executable file, source code, user’s guide, sample data sets, and readme file) (1.47 MB compressed tar file) (updated September 30, 2008)

Supporting Information

• Compilation Notes for UNIX and Windows
• DPM Version History
• DPM Documentation
• Example Applications

Support and Points of Contact

Support is provided for correcting bugs and clarifying how the code is intended to work. Only limited assistance can be provided for applying this software to specific problems. For support or comments regarding this site contact John Vaccaro (jvaccaro@usgs.gov) or Marijke van Heeswijk (heeswijk@usgs.gov).

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