Irrigated Agriculture in the Southern Great Plains
Landsat data show the cause of anomalies in the previous figure between 1982 and 2005 for area 4 near Dalhart, Texas. The red areas show increased green vegetation density due to an expansion of irrigated agriculture in the Southern Great Plains. Credit: C.S.R. Neigh, C.J. Tucker, and J.R.G. Townshend, NASA / Goddard Space Flight Center and University of Maryland (reproduced from Remote Sensing of Environment with permission from Elsevier).