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RGDSS_Historic_CUreport_20040601
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RGDSS_Historic_CUreport_20040601
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Last modified
4/17/2013 10:08:47 AM
Creation date
5/27/2008 2:11:23 PM
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Decision Support Systems
Title
RGDSS - Rio Grande Historic Crop Consumptive Use Analysis
Description
The documentation is for the Rio Grande Basin Historic Crop Consumptive Use Analysis, developed during the RGDSS implementation for the period 1950 through 2002. It includes 100 percent of the crop consumptive use in the basin for the period. Documentation consists of the final Historic Crop Consumptive Use Analysis Report and supporting appendices.
Decision Support - Doc Type
Modeling Dataset Documentation
Date
6/1/2004
DSS Category
Consumptive Use
DSS
Rio Grande
Basin
Rio Grande
Contract/PO #
C153863
Grant Type
Non-Reimbursable
Bill Number
HB98-1189, SB99-173
Prepared By
Leonard Rice Engineering
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Figure 2 <br />Irrigation Water Requirements and Water Supply-Limited CU <br />1800000 <br />1600000 <br />1400000 <br />1200000 <br />r <br />'~ 1000000 <br />L <br />V <br />:~ 800000 <br />U <br />600000 <br />400000 <br />200000 <br />1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 <br />®WaterSupply-Limited CU OShortage -Irrigation Water Requirement <br />The use of ground water to meet irrigation water requirements has been common practice <br />during the study period. Based on the 1998 well to irrigated parcel associations discussed <br />in Appendix A, approximately 52 percent of the irrigated acreage in the basin has the <br />ability to either meet their entire demand, or help reduce surface water shortages, with <br />ground water. The average annual consumptive use of surface water from 1950 through <br />2002 was approximately 394,475 acre-feet while the average annual consumptive use of <br />ground water was approximately 364,570 acre-feet. Figure 3 demonstrates that the <br />supply from ground water has generally increased from 1950 to 2002 as new wells were <br />developed. Also, the supply from ground water increases when surface water supplies <br />decrease. Note that 1963, 1977, 2000, 2001 and 2002 had high pumping estimates, <br />corresponding to years of reduced surface water availability. In recent years, 1993 and <br />1995 had low pumping estimates, corresponding to wet hydrologic years. <br />cureport_6-2004.doc 4 of 48 June, 2004 <br />
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