DS-777 Average Annual Precipitation Data, 1940 to 1949, in inches estimated from an Inverse-Distance-Weighted (IDW) interpolation for the High Plains Aquifer in Parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming

The water-budget-components geodatabase contains selected data from maps in the,
"Selected Approaches to Estimate Water-Budget Components of the High Plains, 1940
through 1949 and 2000 through 2009" report (Stanton and others, 2011). Data were collected and synthesized
from existing climate models including the Parameter-Elevation Regressions on Independent Slopes Model
(PRISM) (Daly and others, 1994), and the Snow accumulation and ablation model (SNOW-17) (Anderson,
2006), and used in soil-water balance models to compute various components of a water budget. The
methodologies used to compute the averages and volumes for the data in this geodatabase are slightly
different for different components and models.