1. General Model Information

Name: Riverine Habitat Simulation software

Acronym: RHABSIM

Main medium: aquatic
Main subject: hydrology, population dynamics,
Organization level: Ecosystem,
Type of model: 2D
Main application:
Keywords: habitat modeling, hydrological modeling


Thomas R. Payne
890 L. Street, Arcata, California 95521 U.S.A.

Phone: (707) 822-8478
email: trpa@northcoast.com
Homepage: http://www.northcoast.com/~trpa


U.S. Fish and Wildlife Service, Thomas Payne


RHABSIM is a fully integrated program for river hydraulics and aquatic habitat modeling using the Instream Flow Incremental Methodology (IFIM). It is an extensive conversion of the hydraulic and habitat simulation system developed by the U. S. Fish and Wildlife Service.

II. Technical Information

II.1 Executables:

Operating System(s): MS-DOS and WIndows http://www.northcoast.com/~trpa/index.html

II.2 Source-code:

Programming Language(s): BASIC, Visual BASIC, assembly language

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics


III.2 Quantities

III.2.1 Input

Hydraulic streamflow, water surface levels and velocity data. (Fish) species criteria curve data.

III.2.2 Output

Weighted Usable Area Time Series Flow and Habitat Duration tables.

IV. References

Payne, T.R. 1987. One flow IFG4 - What it is and how it works. Instream Flow Chronicle, Vol. IV, No. 1. Ft. Collins, CO.

Payne, T.R. 1988. PHABSIM analytical errors and implications of IFIM. Instream Flow Chronicle, Vol. V, No. 3. Ft. Collins, CO.

Payne, T.R. 1988. A Comparison of Weighted Usable Area Calculations using Four Variations of the IFG4 Hydraulic Model. Paper Presented to American Fisheries Society Bioengineering Symposium, Portland, OR.

Panye, T.R. 1992. Stratified Random Selection Process for the Replacement of Physical Habitat Simulation (PHABSIM) Transects. Paper Presented to AFS Western Division Meeting July 13-16, Ft. Collins, CO.

Payne, T.R. 1994. RHABSIM: User Friendly Computer Model to Calculate River Hydraulics and Aquatic Habitat. Proc. of the 1st International Symposium on Habitat Hydraulics, August 18-20, Trondheim, Norway

Payne, T.R. 1995. IFIM: In Fact it's Magic. Review of the Instream Flow Incremental Methodology: A Primer for IFIM, written by National Biological Service, Bio. Rpt. 29, March 1995. Rivers 5(1): 56-57.

V. Further information in the World-Wide-Web

VI. Additional remarks

Used by fisheries biologists to predict changes in physical and environmental habitat.
Last review of this document by: Tue Mar 28 18:33:45 2000
Status of the document: Contributed by Dwain Goforth
last modified by Tobias Gabele Wed Aug 21 21:44:48 CEST 2002

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