The "SWBrecharge.asc" file is an ascii grid of recharge values computed from a soil-water-balance model. Details of model input and calculations can be found in: Hays, P.D., Knierim, K.J., Breaker, B., Westerman, D.A., and Clark, B.R., 2016, Hydrogeology and Hydrologic Conditions of the Ozark Plateaus aquifer system: U.S Geological Survey Scientific Investigations Report 2016–5137. Projection ALBERS Datum NAD83 Spheroid GRS80 Units METERS Zunits NO Xshift 0.0 Yshift 0.0 Parameters 29 30 0.0 /* 1st standard parallel 45 30 0.0 /* 2nd standard parallel -96 0 0.0 /* central meridian 23 0 0.0 /* latitude of projection's origin 0.0 /* false easting (meters) 0.0 /* false northing (meters)