7317

• UCREFRP Catalog Number: 7317
• Author: Cowan, M. S., W. R. Cheney and J. C. Addiego.
• Title: Executive Summary of the Colorado River Simulation System.
• USFW Year: 1981.
• USFW - Doc Type: Denver, Colorado.
• Copyright Material: NO

graphical form. By using TAPEDIT, many
pages of output can be eliminated.
Colorado River Simulation
Model Computer Resource
Requirements
The CRSM is written in Fortran IV and is
presently set up to run on the Bureau of
Reclamation Control Data Corporation CYBER
170/730 computer at the Engineering and
Reseazch Center, Denver, Colorado. The model
requires 215,000 octal 64-bit words of computer
core memory storage. At present a 50-year run
costs around $20 and requires about 80 seconds
of computer time.
Applications of Colorado River
Simulation System
The CRSS was fast applied by .the Westwide
study group in 1973. From 1973 to 1978, CRSS
was given serious scrutiny and many changes
were made to solve some of the problems and
strengthen some areas of weakness that had
been detected. In 1978, CRSS was applied to the
WRC (Water Resource Council) Emerging
Energy Technology Studies. Further improve-
ments were made during this study period. In
1979, CRSS was used by the Office of At-
mospheric Reseazch, Bureau of Reclamation, to
evaluate the potential uses and effects of
weather modification or precipitation enhance-
ment. In 1980, CRSS was used to produce data
for the "Tenth Biennial Report on the Quality
of the Colorado River." In 1981, CRSS was
used to furnish data for WRC Emerging Energy
Technology Studies in the Lower Colorado
Basin. With each use of the CRSS, improve-
ments aze made. The Bureau of Reclamation
has accepted CRSS as the primary tool for
simulations of the Colorado River System.
Other models and methods used to indicate im-
pacts of operational and developmental ad-
justments on the Colorado River aze gradually
being phased out. The CRSS is supported tech-
nically by a Technical Management Team, and
administratively by a Steering Committee. This
support draws from personnel in the Upper and
Lower Colorado Regional Offices and the
Engineering and Research Center.
Documentation
The complete documentation of the CRSS is
contained in eight parts:
1. CRSS Executive Summary
2. Volume I Model: User's Manual
3. Volume II Model: Programmer's
Manual
4. SMDID User's Manual
5. Upper Colorado River Hydrology
Data Base
6. Lower Colorado River Hydrology
Data Base
7. TAPEDIT User's Manual
8. MHYDRO User's Manual
For additional information regazding the CRSS
please write to or call one of these offices:
U.S. Department of the Interior
Bureau of Reclamation
Engineering and Research Center
Attn D-752 (CRSS)
Division of Planning Technical Services
PO Box 25007
Denver Federal Center
Denver CO.80225
Telephone [phone]
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