Change in water-table altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring 2002 to Spring 2015

Raster showing change in water-table altitude between Spring of 2002 and Spring of 2015 in the alluvium in the Lower Arkansas River Valley, Southeast Colorado. Hereafter "spring" is defined as the periods of January 1 to May 31, and December 1 to December 31. All interpolation and geoprocessing was done using ArcGIS Desktop v10 (Environmental Systems Research Institute, 2011).