Soil-Water-Balance model and data used in the hydrogeologic framework and conceptual groundwater-flow model of the panhandle and northwest parts of the High Plains (Ogallala) aquifer in Oklahoma, 1998–2022

The U.S. Geological Survey (USGS), in cooperation with the Oklahoma Water Resources Board (OWRB), constructed a Soil-Water-Balance (SWB) model of the High Plains aquifer system (hereinafter referred to as the "Ogallala aquifer" in northwestern Oklahoma. The SWB model as well as supplementary data were used to (1) estimate recharge to the Ogallala aquifer in northwestern Oklahoma, and (2) support development of a conceptual groundwater-flow model and water budget for the Ogallala aquifer during 1998–2022. This USGS model application data release contains all model input data and the resulting recharge data files. Input data for the SWB model are precipitation, air temperature, soil-water storage capacity, hydrologic soil group, surface-water flow direction, and land-cover type. Supplementary base-flow and groundwater-use data for the Ogallala aquifer are also provided.