1. General Model Information

Name: Hydrological Simulation Program - FORTRAN

Acronym: HSPF


Main medium: aquatic+terrestrial
Main subject: hydrology
Organization level: landscape
Type of model: partial differential equations, ordinary differential equations
Main application:
Keywords: basin, watershed, hydrology, pollutants, contaminant runoff, fate, transport, water quality, sediment, organic chemicals, biodegradation, continuous-time, spatially distributed, multiple subbasins, process based

Contact:

Center for Exposure Assessment Modeling (CEAM) (EPA)

Author(s):

Johansen, N.B., J.C. Imhoff, J.C. Kittle, and A.S. Donigian

Abstract:

Johansen and others (1984) developed the Hydrological Simulation Program - FORTRAN (HSPF) model to simulate both basin hydrology and water quality. A continuous-time model, HSPF allows simulation of contaminant runoff with instream water quality and sediment interactions. The instream component includes not only nutrient processes such as nitrogen and phosphorus movement, but also benthic algae, phytoplankton, and zooplankton. The HSPF model also simulates complex chemical processes including hydrolysis, biodegradation, and oxidation. The drawback to HSPF is the data intensive nature of the input parameters required. To ease parameter aquisition and model calibration an expert system for HSPF-parameters has been developed HSPF is capable of simulations on basins as large as 68,000 square miles, and the watershed can be subdivided into smaller subbasins.

Abstract on the CEAM - HSPF-page:
Hydrological Simulation Program - FORTRAN (HSPF) is a comprehensive package for simulation of watershed hydrology and water quality for both conventional and toxic organic pollutants. HSPF incorporates watershed-scale ARM and NPS models into a basin-scale analysis framework that includes fate and transport in one dimensional stream channels. It is the only comprehensive model of watershed hydrology and water quality that allows the integrated simulation of land and soil contaminant runoff processes with In-stream hydraulic and sediment-chemical interactions. The result of this simulation is a time history of the runoff flow rate, sediment load, and nutrient and pesticide concentrations, along with a time history of water quantity and quality at any point in a watershed. HSPF simulates three sediment types (sand, silt, and clay) in addition to a single organic chemical and transformation products of that chemical.


II. Technical Information

II.1 Executables:

Operating System(s): DOS ,UNIX

see: CEAM HPSF page at http://www.epa.gov/ceampubl/swater/hspf/index.htm
see: USGS HPSF page at http://water.usgs.gov/software/HSPF/

II.2 Source-code:

Programming Language(s): FORTRAN
see: USGS HPSF page at http://water.usgs.gov/software/HSPF/

II.3 Manuals:

see: CEAM HPSF page at http://www.epa.gov/ceampubl/swater/hspf/index.htm
see: USGS HPSF page at http://water.usgs.gov/software/HSPF/

II.4 Data:



III. Mathematical Information


III.1 Mathematics


III.2 Quantities


III.2.1 Input

III.2.2 Output


IV. References

Johansen, N.B., J.C. Imhoff, J.C. Kittle, and A.S. Donigian, 1984,Hydrological Simulation Program - FORTRAN (HSPF): Users ManualRelease 8, EPA-600/3-84-066, USEPA, Athens, GA.

V. Further information in the World-Wide-Web



VI. Additional remarks


Last review of this document by: J. Bierwirth: 15.01. 2001 -
Status of the document:
last modified by Joachim Benz Sat Jan 17 21:11:46 CET 2009

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