8276

• UCREFRP Catalog Number: 8276
• Author: Williss, C. C.
• Title: Documentation of Temperature Model Prepared by the Instream Flow and Aquatic Systems Group, in Cooperation with the U.S. Soil Conservation Service and the U.S. Fish and Wildlife Service.
• USFW Year: 1984.
• USFW - Doc Type: Denver, Colorado.
• Copyright Material: NO

SP- 3BR- 22--
IN REPLY REFER TO
FR/EN
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MAILING ADDEM. SINEST LOCATION:
Pon offwc BDZ 44L 6 184 Union Blvd.
Denver Federal Csnw LohnAlood. Cobr"o So=
Deaver. Colorsdc 90225
DEC 8 1 1964
MEMORANDUM
To:
United States Department of the Interior
FISH AND WILDLIFE SERVICE
Members of Hydrology Subcommittee, Upper Colorado
River Coordinating Committee
From: %egionai Hydrologist, Region 6
Subject: Documentation of Temperature Model Prepared by the
Instream Flow and Aquatic Systems Group, in
cooperation with the U.S. Soil Conservation
Service and the U.S. Fish and Wildlife Service
The temperature model was developed to predict instream water
40 temperatures based on either historic or synthetic hydrologic,
meteorologic, and geometric stream conditions. Since the model
is applicable to any size watershed or river basin, the Fish
and Wildlife Service is using the model to identify the effects
of different demand and reservoir operation scenarios upon
water temperatures in the Upper Colorado River Basin. The
attached flow chart shows the source of input to the
temperature model and traces the linkage of the temperature
model to HYDROSS and PHABSIM.
Attached is documentation related to the use of the temperature
model for estimating water temperatures based upon 1930-1982
historical gage data. As agreed during the last meeting of the
Hydrology Subcommittee, this information is being distributed
early to facilitate discussion at the next meeting, now
scheduled for January 4, 1985, in Salt Lake City, Utah.
If you have questions prior to the meeting, or desire
additional information at the meeting, please call Mike Brewer
or George Smith at [phone] or FTS 776-5322.
i?
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