Download Appendix 25 - HEC-GeoHMS 1.0 Software Documentation

REPORT DOCUMENTATION PAGE
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OMB No. 0704-0188
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1. AGENCY USE ONLY (Leave Blank)
2. REPORT DATE
July 2000
3. REPORT TYPE AND DATES COVERED
Computer Software User’s Manual
4. TITLE AND SUBTITLE
5. FUNDING NUMBERS
Geospatial Hydrologic Modeling Extension HEC-GeoHMS
User’s Manual
U.S. Army Corps of Engineers Civil
Works R&D Work Units 32975 and
33175
6. AUTHOR(S)
James H. Doan
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)
8. PERFORMING ORGANIZATION
REPORT NUMBER
U.S. Army Corps of Engineers
Hydrologic Engineering Center, HEC
609 Second St.
Davis, CA 95616-4687
CPD-77
9. SPONSORING / MONITOGING AGENCY NAME(S) AND ADDRESS(ES)
10. SPONSORING / MONITORING
AGENCY REPORT NUMBER
HQ U.S. Army Corps of Engineers
20 Massachusetts Ave., NW
Washington, DC 20314-1000
11. SUPPLEMENTARY NOTES
New document.
12A. DISTRIBUTION / AVAILABILITY STATEMENT
12B. DISTRIBUTION CODE
Distribution is unlimited.
13. ABSTRACT (Maximum 200 words)
The Geospatial Hydrologic Modeling Extension (HEC-GeoHMS) is a software package for use with the ArcView Geographic
Information System. GeoHMS uses ArcView and Spatial Analyst to develop a number of hydrologic modeling inputs.
Analyzing the digital terrain information, HEC-GeoHMS transforms the drainage paths and watershed boundaries into a
hydrologic data structure that represents the watershed response to precipitation. In addition to the hydrologic data structure,
capabilities include the development of grid-based data for linear quasi-distributed runoff transformation (ModClark), HECHMS basin model, physical watershed and stream characteristics, and background map file.
GeoHMS provides an integrated work environment with data management and customized toolkit capabilities, which includes
a graphical user interface with menus, tools, and buttons. The program features terrain-preprocessing capabilities in both
interactive and batch modes. Additional interactive capabilities allow user to construct a hydrologic schematic of the
watershed at stream gages, hydraulic structures, and other control points. The hydrologic results from HEC-GeoHMS are then
imported by the Hydrologic Modeling System, HEC-HMS, where simulation is performed.
GeoHMS is available for Windows 95/98/NT/2000 operating systems.
14. SUBJECT TERMS
15. NUMBER OF PAGES
Geographic Information System, hydrology, watershed, precipitation runoff, river routing, flood
control, water supply, computer simulation.
16. PRICE CODE
17. SECURITY CLASSIFICATION
OF REPORT
18. SECURITY CLASSIFICATION
OF THIS PAGE
19. SECURITY CLASSIFICATION
OF ABSTRACT
20. LIMITATION OF
ABSTRACT
Unclassified
Unclassified
Unclassified
NSN 7540-01-280-5500
Standard Form 298 (Rev. 2-89)
Prescribed by ANSI Std. Z39-18 298-102
214
Unlimited
USAPPC V1.00