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OFR 2021-1008 MODEL OUTPUT: Soil-Water-Balance net infiltration and irrigation water use output datasets for the Mississippi Embayment Regional Aquifer System, 1915 to 2018

February 26, 2021

This data release includes four sets of gridded annual net infiltration (groundwater recharge) and irrigation water use data sets for the Mississippi Embayment Regional Aquifer System (MERAS).Also included are gridded water balance component data sets of precipitation, runoff, actual evapotranspiration, and soil-water storage for 2000 to 2018. The net infiltration, irrigation, runoff, actual evapotranspiration, and soil-water storage data sets are outputs from simulations done with the USGS Soil-Water-Balance (SWB) model (version 2; Westenbroek and others, 2018). The precipitation data was used as input for the SWB model application and is derived from DayMet version 3 (Thornton and others, 2018) and Livneh and others (2013). The SWB model application and associated input and output files are archived in a companion model archive data release.Further details about this application of the SWB model can be found in the related primary publication.The model archive data release and the primary publication can be accessed through links in the related external resources section below. The landing page for each child item contains metadata to further describe the contents of individual files.All gridded data have units of inches and are provided as netcdf files. References: Livneh, B., Rosenberg, E.A., Lin, C., Nijssen, B., Mishra, V., Andreadis, K.M., Maurer, E.P., and Lettenmaier, D.P., 2013, A long-term hydrologically based dataset of land surface fluxes and states for the conterminous United States: Update and extensions: Journal of Climate, v. 26, no. 23, p. 9384?9392. Thornton, P.E., Thornton, M.M., Mayer, B.W., Wei, Y., Devarakonda, R., Vose, R.S., and Cook, R.B., 2016, Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version 3, accessed August 16, 2018, at http://dx.doi.org/10.3334/ORNLDAAC/1328. Westenbroek, S.M., Engott, J.A., Kelson, V.A., and Hunt, R.J., 2018, SWB version 2.0?A Soil-Water-Balance code for estimating net infiltration and other water-budget components: U.S. Geological Survey Techniques and Methods, book 6, chap. A59, 118 p., https://doi.org/10.3133/tm6A59.