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WSPC02689
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Last modified
7/29/2009 8:11:10 AM
Creation date
10/9/2006 3:30:53 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8283.200
Description
Colorado River Basin-Colorado River Computer Models-Colorado River Decision Support System-Ray
State
CO
Water Division
5
Date
8/1/1991
Author
BOR
Title
Consumptive Use Modeling-Inventory of Hydrologic Models-Global Climate Change Response Program-Excerpt
Water Supply Pro - Doc Type
Report/Study
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<br />OU1.j02 <br /> <br />HYDROLOGIC MODELS INVENTORY <br /> <br />EVALUATION FORM <br /> <br />NAME OF MODEL: XCONS <br /> <br />FUNCTION: Estimates monthly crop evapotranspiration using the Blaney-Criddle <br />Method <br /> <br />AGENCY & OFFICE: USBR - Denver Office - Water Resources Section <br /> <br />TECHNICAL CONTACT: Eldon Johns (D5752) 303-236-38l0 <br />FTS 776-3810 <br /> <br />I <br />:; <br /> <br />MACHINE COMPATIBILITY: CDC Cyber Main Frame <br /> <br />DOCUMENTATION: Self documenting in program listing. Reference: Irrigation <br />Water Requirements, Technical Release No. 21, Soil Conservation Service, <br />September 1970. <br /> <br />SPATIAL PRECISION: Point estimates based on weather station locations. <br /> <br />TEMPORAL PRECISION: Monthly <br /> <br />I <br />1 <br /> <br />OVERVIEW OF CAPABILITIES, ASSUMPTIONS: Provides monthly estimates of <br />consumptive use and crop irrigation requirement (net irrigation requirement) <br />and allows for overall estimates weighted by crop. Assumes that consumptive <br />use is a function of temperature, precipitation, location and crop phenology <br />only. <br /> <br />STRENGTHS: Simple to operate and modify. Easy to read results. <br /> <br />WEAKNESSES: An old program which has had extensive modification by a number <br />of different individuals. <br /> <br />INPUT REQUIREMENTS: Climate (temperature, precipitation and growing season) <br />and crop phenology. <br /> <br />OUTPUT PRODUCED: Monthly evapotranspiration and crop irrigation requirement <br />(net irrigation requirement) estimates. Estimates of effective precipitation <br />using the SCS method. <br /> <br />1-4 <br />
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