EPA Infiltration Models
The United States Environmental Protection Agency (US EPA) developed a suite of numerical watershed infiltration process models available using MathCAD 6.0 spreadsheet model. Numerical infiltration models include, the SCS Curve number method, the Phillips 2 term model, the Layered Green Ampt Model, the Explicit Green Ampt Model, the Constant Flux Green Ampt Model, and the Infiltration/Exfiltration model.
- Developer
- EPA
- Model Information
- For more information about this model, go to www.epa.gov
- Spatial Resolution
- Not Applicable
- Temporal Resolution
- Not Applicable
- Outputs
- Outputs include overland flow and soil infiltration rates.
- Intended User
- practitioner
- Model Type
- watershed
- Inclusion of Climate Change
- Climate conditions are not explicitly incorporated.
- Geographic Region
- generalized
- Data Requirements
- data provided by the user
- Source Code Availability
- open source
- Dimensions
- not applicable
- Computational Burden
- low
- Scenario Modeling
- not applicable
- Coding Language
- other: Delphi/Perl/Mathcad
- Operating System
- windows
- Mathematical Approach
- deterministic
- Maintenance Plan
- not supported
- Date of Last Known Update
- not available
- User Manual
- go to documentation at not available
For more information and definitions of terms, see the codebook. Do you have feedback about this tool?