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WSPC05098
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Last modified
7/29/2009 11:13:55 AM
Creation date
10/9/2006 5:00:04 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
5/31/1994
Title
Consumptive Use Modeling-Work Plans-May 1994-June 1994
Water Supply Pro - Doc Type
Operating Principles/Plan
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<br /> <br />P.17 <br /> <br />OU1231 <br /> <br />I <br /> <br />on the State providing the information to link diversion stmctUIe8 to individual <br />fields, <br /> <br />. <br /> <br />Improve ~timate5 of effectivc precipitation. SoU survey map' (1:2S0K) will be <br />used to obtain general soil types. These soil types will be combined with typical <br />rooting depths of each crop to improve estimates of net depth of applicntion. <br />This will require modification of the XCONS2 program. <br /> <br />. <br /> <br />Locally calibrate the SCS Blaney-Criddle method to UnpJ:Ovc the accuracy of the <br />crop ET. The local calibration coefficicnts will be developed using a reference <br />crop eql,Ulllon. <br /> <br />. <br /> <br />Incorporate the contribution to crop ET from sloxed soil moisture Il8 a result of <br />precipitation during the non-growing season or winter precipitation. This will be <br />a modification to XCONS2. <br /> <br />. <br /> <br />The weather stations that thc USBR report uses will be reviewed, Md the 11$e of <br />new stations will be recommended and implemented. <br /> <br />SuhtAsk 6. Develop and implement a method for calculating evaporation water loss from stock <br />ponds in the Gunnison River basin, A subroutine will be created to calculate the stock pond <br />consumptive use, The input for this component will 00 part of the "flat file" input for the <br />consumptive use model. TIle surface area of the stock ponds will be computed using II regre5:lion <br />formula developed as part of the Agticultural Research Service SWRRB model. These valuCB, <br />possibly with some adjustment factors to account for the pond's percentage of fullness, will be used <br />to determine the total amount of evapomtion. <br /> <br />Subf<l.k 7. Develop and implement a method for estimating consumptive use due to livestock in the <br />Gunnison River basin. A subroutine will ha cr~ted to calculate the livestock. consumptive use. The <br />input for this component will be part of the ''flat file" input for the consumptive use model, A <br />default dally water consumption for each type of livestock will be provided, <br /> <br />S,uQtosk 8. Develop and implement n method to detemline municipal and industrial consumptive <br />use. The municipal and industrial category includes ~onsumptive use from mineral resources, <br />thennal electric power, and urban and roml per capita uses, Thc calculation of the urban and rural <br />consumptive use will be based on the per capita consumptive use and verified using diversion <br />records, where possible. The population estimatcs will be based on census data. The industrial <br />consumptive use will be developed using data from the different indu..tries. <br /> <br />~l1hta..lc 9, Develop and implcnx:nt n method to account for water which is removed or ellported <br />from the Colorado River System. 1bese exports will be calculated based on: <br /> <br />. Records from different feder& and slate agencies <br />. The size of the diversion facilities <br />. The historical di vcrsion.q at that point <br /> <br />A27.1 D.S.lO.N 2-48 <br />
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