WSPC06213

• File Number: 8283.200
• Description: Colorado River Basin-Colorado River Computer Models-Colorado River Decision Support System-Ray
• State: CO
• Water Division: 5
• Date: 4/5/1994
• Title: Consumptive Use Modeling-Task 1.14a-Evaluation of Consumptive Use Models-Consumptive Use Data Input Requirements
• Water Supply Pro - Doc Type: Report/Study

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Task 1.14(a) - Evaluation of Consumptive Use Models

will be able to select to calculate CU. Regardless of the time period there are some data
that will be needed.

Table 5: Input Data for the Selected Time Period

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Model Input Units Type K= core From Entlty(s)
/hJ = fringe
Average monthly temperature (calculated Temp Float K derived from
by averaging max. and min. temps.) l)~ climate station
Average daily temperature (calculated by derived from
averaging max. and min. temps.) Temp Float /hJ climate station
Average monthly precipitation Length Float K climate station
Average daily precipnation Length Float /hJ climate station
Daytime wind speed Velocny Float /hJ climate station
Minimum relative humidny Percent Float /hJ climate station
(can derived from minimum temperature) (may be derived)
'Net radiation Unnless Float /hJ climate station
(daylight hours per 24 hour period)
Soil Type described by properties and about six Character K sollsa from
specnied by location types geoloc GIS data
Soil moisture depletion coefficient Unnless Float K solis from geoloc
GIS data

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a. New Entity?

3.5 Agricultural Stock Pond Use
Stock pond consumptive use is an estimate of water loss through evaporation from
stock ponds.

Table 6: Agricultural Stock Pond Use
Model Input Units Type K= core From Entlty(s)
/hJ = fringe
Pond Locations Location Float K pond from
geoloc GIS data
Surface area of Stock Ponds in area Area Integer K pond

3.6 Agricultural Livestock Use
There is a standard amount of water that can be estimated based on the numbeT and
kind of livestock in a given area. The USBR_Methods Manual uses the quantity gallons/
head/day (gphpd) to measure the:C~p-~)use, Cattle are estimated at 10 gphpd, sheep
at 2 gphpd. and hogs at 3gphpd. We should change this value to a unit that is more easily
translated to a consumptive use value. Thhefore the units of liters will be substituted for
gallons and the conversions are listed inti he Model Input category of table 7,

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4/5/94 - Evaluation Document (for internal use) 5

Database Requirements: CSU- ADOS