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<br />I <br /> <br />I <br /> <br /> LandSat 89 LandSat 99 Difference in <br /> Irrigated Acreage <br /> Summer Summer ~ummer l~pnng <br /> Spring Spring Irrigated Irrigated <br /> irrigated Irrigation- irrigated Irrigation- Acreage Acreage <br /> Center Pivot 1 Center Pivot Center Pivot 1 Center Pivot (1989 to (1989 to <br />Area (100 square miles) (acres2) (acres2) (acres2) (acres2) 1999) 1999) <br />43 488 122 1830 0 1342 -122 <br />44 488 732 2562 610 2074 -122 <br />45 1220 732 3660 976 2440 244 <br />46 1708 0 5490 1586 3782 1586 <br />47 2806 366 6466 915 3660 549 <br />49 244 0 0 0 -244 0 <br />50 0 0 366 0 366 0 <br />51 122 0 976 122 854 122 <br />52 0 0 976 488 976 488 <br />53 0 0 1586 244 1586 244 <br />54 0 0 854 122 854 122 <br />55 0 122 976 244 976 122 <br />57** 0 0 0 0 0 0 <br />58 61 0 0 0 -61 0 <br />59 0 0 0 0 0 0 <br />60 30.5 0 0 0 -30.5 0 <br />61 0 0 305 0 305 0 <br />62 122 427 305 122 183 -305 <br />63 1220 2928 3172 2013 1952 -915 <br />Total 28945 10431 76494 18132 47549.5 7701 <br />Total Summer irrigated: 28945 acres 76494 acres <br />Total Spring irrigated: 10431 acres 18132 acres <br />Total Acres irrigated: 39376 acres 94626 acres <br />% change between 89 and 99 (Summer irrigated) 164 % change *... <br />% difference between 89 and 99 (Spring Irrigated) 140 % change **** <br />1 Percent irrigated based on color of landsat image <br />2 Summer Irrigation Area based on gray-green satellite circle pivot area <br />* Area 1-8 are only 80 square miles <br />** Area 57-64 are only 50 square miles <br />*** Twenty square miles of Areas 7,15,23,31,39,47,55,63 are in Kansas <br />**** Are the specified differences in Circle Pivots between 89 and 99 <br /> <br />I <br />I <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br />I <br /> <br />I <br /> <br />I <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />V-5 <br />