Mapping Irrigated Lands in the ACF River Basin
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In Georgia, a critical component of the water demand equation is the consumptive use of water for agricultural irrigation. The University of Georgia, Center for Remote Sensing and Mapping Science (UGA-CRMS), in cooperation with the Georgia Department of Natural Resources, Environmental Protection Division (GDNR-EPD), has developed a digital geographic information system (GIS) database of irrigated langs in Subarea 4 of the Apalachicola-Chattahoochee-Flint (ACF) River Basin. In this project, U.S. Geological Survey (USGS) National Aerial Photography Program (NAPP) color-infrared aerial photographs acquired in the winter of 1999 were scanned, rectified, and interpreted to identify center-pivot irrigation systems. Non-center pivot irrigation acreage was estimated from irrigation survey information. Collectively, these effors resulted in a digital GIS database, hardcopy maps, and areal statistics describing 475,779 acres of irrigated land in southwest Georgia.