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V-7 99-028,003\Phase 2 Report\SHP Blaney-Criddle
<br />CROP CONSUMPTIVE USE - BLANEY-CRIDDLE METHOD
<br />TABLE 5-5. ESTIMATE OF GROUNDWATER PUMPAGE IN SOUTHERN HIGH PLAINS GROUNDWATER BASIN -
<br />WALSH WEATHER DATA (Plainsman Reseach Center)
<br />Date:
<br />Dec-01
<br />I
<br />I User:
<br />1WJA
<br />I
<br />I
<br />I
<br />lJob:
<br />99-028,003
<br />Station:
<br />Walsh, Colorado 1W
<br />Elevation:
<br />1 3977
<br />Ifeet
<br />I
<br />I
<br />I Latitude
<br />137 deg, 23 min
<br />1
<br />2
<br />3 4 5 6
<br />7
<br />Peak Unit Monthly Total Peak Month Seasonal Unit Total Seasonal
<br />Total Seasonal
<br />Irrigated
<br />Consumptive Use Consumptive Consumptive Use Consumptive Use
<br />Irrigation Requirement
<br />Crop
<br />Acres
<br />(Acre-inch/Acre) Use (Acre-Feet) (Acre-Feet/Acre) (Acre-Feet)
<br />(Acre-Feet)
<br />1999/2000 2001
<br />1999 2000 2001 1999 2000 2001 1999 1 2000 2001 1999 1 2000 2001
<br />1999 2000
<br />2001
<br />Corn
<br />77,300 75800
<br />7.78 8.68 7.96 50,141 55,944 50,259 1.67 2.19 1.72 129,091 169,407 130,243
<br />151,872 199,302
<br />153,227
<br />Wheat
<br />1 32,200 31,6001
<br />3.21 6.77 5.95 8,625 18,168 15,675 0.9 1.14 0.94 28,980 36,850 29,637
<br />34,094 43,353
<br />34,867
<br />Sorghum
<br />16,700 16,400
<br />7.86 8.77 8.03 10,940 12,199 10,976 1.41 1.70 1.38 23,547 28,328 22,659
<br />27,702 33,327
<br />26,658
<br />Alfalfa
<br />2,600 2,500
<br />8.12 9.04 8.28 1,760 1,959 1,726 2.08 2.57 2.06 5,408 6,679 5,160
<br />6,362 7,858
<br />6,070
<br />Totals
<br />128,800 126,300
<br />71,466 88,270 78,635 187,026 241,264 187,700
<br />220,031 283,840
<br />220,823
<br />Explanation of column information:
<br />Column 1:
<br />Column 2:
<br />Column 3:
<br />Column 4:
<br />Column 5:
<br />Column 6:
<br />April to October Rainfall amount, inches = 19.46 10.73
<br />Irrigated crops grown in the Southern High Plains Groundwater Bas 1999 and 2000 acreage estimated at 128,800 acres, 2001 acreage estimated at 126,300 acres.
<br />Proportion of irrigated acreage within the Basin, source FSA Office, Springfield, Colorado.
<br />Peak unit monthly irrigation water demand, from Blaney-Criddle Method.
<br />Total peak monthly irrigation water demand, from Blaney-Criddle Method.
<br />Seasonal unit irrigation water demand, from Blaney-Criddle Method, column 2 x column 4.
<br />Total seasonal irrigation water demand, column 5 divided by an irrigation efficiency of 0.85. From Rogers, Lamm, et al, 1997.
<br />14.07
<br />V-7 99-028,003\Phase 2 Report\SHP Blaney-Criddle
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