DS-777 Average Annual Recharge, 2000 to 2009, in inches estimated from the SOil WATer (SOWAT) Balance Model 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.水平衡组分地理数据库（water-budget components geodatabase）收录了选自《1940-1949年与2000-2009年高平原水平衡组分估算方法选辑》（Stanton等，2011）报告中的地图数据。本数据集的数据源自现有气候模型，包括独立斜坡模型参数-高程回归模型（Parameter-Elevation Regressions on Independent Slopes Model，PRISM）（Daly等，1994）以及积雪积累与消融模型（Snow accumulation and ablation model，SNOW-17）（Anderson，2006），经收集与整合后，用于土壤水量平衡模型以计算水平衡的各类组分。本地理数据库中数据的平均值与总量计算方法，因组分与模型的不同而略有差异。