William G. Eldridge 2020 Version 1.0 soil-water balance model Reston, VA, USA U.S. Geological Survey https://doi.org/10.5066/P9TKVMXU William G. Eldridge Todd M. Anderson 2020 Publication Scientific Investigations Report 2020-5097 Reston, VA, USA U.S. Geological Survey https://doi.org/10.3133/sir20205097 The USGS, in cooperation with the City of Summerset, South Dakota, developed a Soil-Water Balance (SWB) model of the alluvial aquifer in north Summerset to estimate recharge and potential evapotranspiration volumes and rates for 2017-2019. The model area included the north part of the city of Summerset in west South Dakota along the east range of the Black Hills. The SWB model output can be used for groundwater flow models, water budget calculations, and to study the effects of precipitation variations on groundwater levels. The output for the model was used to estimate recharge and potential evapotranspiration for budget calculations. The model is uncalibrated but the output could be calibrated as an input for another model, such as a groundwater flow model. This USGS data release contains all of the input and output files for the model described in the associated model documentation report (https://doi.org/10.3133/sir20205097). The purpose of the Soil-Water Balance model and its intended uses include estimating recharge and potential evapotranspiration volumes and rates for 2017-2019 for potential use in a groundwater flow model. The development of model input and output files included in this data release are documented in U.S. Geological Survey Scientific Investigations Report 2020-5097 (https://doi.org/10.3133/sir20205097). Support is provided for correcting errors in the data release and clarification of the modeling conducted by the U.S. Geological Survey. Users are encouraged to review the model documentation report to understand the purpose, construction, and limitations of this model (https://doi.org/10.3133/sir20205097). The model runs successfully only if the original directory structure is correctly restored. The model archive is divided into several parts to reduce the likelihood of download timeouts. Instructions for reconstructing the original directory structure and running the model included in this data release and can be found in the readme.txt ASCII file which can be downloaded as part of this data release. 20170101 20191231 publication date Complete Not planned -103.390961 -103.352428 44.2323519 44.2061559 USGS Thesaurus Inlandwaters Soil-water balance model ISO 19115 Topic Category geoscientificInformation inlandWaters environment usgssoilwaterbalancemodel SWB recharge model alluvium USGS Metadata Identifier USGS:9af53100-e47c-47ff-a92e-3ef6a16e2e1b Geographic Names Information System South Dakota Summerset alluvial aquifer None. Acknowledgment of the U.S. Geological Survey would be appreciated in products derived from this data release. None William G. Eldridge U.S. Geological Survey mailing and physical

1608 Mountain View Road

Rapid City SD 57702 USA 605-394-3200 weldridge@usgs.gov https://water.usgs.gov/GIS/browse/sir2020-5097.png Image of the model domain and active area of the model. png City of Summerset The model was not calibrated, but the outputs can be calibrated as parameters in other models, such as a groundwater flow model. No formal logical accuracy tests were conducted Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record and the associated model documentation report (https://doi.org/10.3133/sir20205097) for additional details. No formal positional accuracy tests were conducted No formal positional accuracy tests were conducted The process used to develop and apply the soil-water balance model is described in the model documentation report (https://doi.org/10.3133/sir20205097). 2020 raster pixel NAD_1983_Transverse_Mercator 0.9996 -105.0 0.0 1640416.666666667 0.0 row and column 50.0 50.0 feet North American Vertical Datum of 1988 1.0 feet Attribute values SIR2020_5097.shp ESRI Polygon shapefile U.S. Geological Survey Area Text string indicating if polygon area is active or inactive in the model. https://doi.org/10.3133/sir20205097 soil-water-balance model Delineation of active and inactive areas in the model. https://doi.org/10.3133/sir20205097 Eldridge, W.G., 2020, Soil-Water Balance model for alluvial deposits in Summerset, South Dakota: U.S. Geological Survey data release, https://doi.org/10.5066/P9TKVMXU https://doi.org/10.5066/P9TKVMXU U.S. Geological Survey Michael Ierardi mailing

445 National Center

Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) mierardi@usgs.gov The data have been approved for release by the U.S. Geological Survey (USGS). Although the data have been subjected to rigorous review and are substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, the data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from authorized or unauthorized use. Although the data, software, and related material have been processed successfully on a computer system at the USGS, no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. readme.txt 1.0 ASCII text file This ASCII text file describes the model data release. This file also includes instructions for running the models contained in this data release. 0.024576 https://water.usgs.gov/GIS/dsdl/sir2020-5097/readme.txt modelgeoref.txt 1.0 ASCII text file This ASCII text file defines the four corners of the model domain in decimal degrees. Model data files are in the GCS NAD 1983 UTM Zone 13N Transverse Mercator projection, in feet. 0.004096 https://water.usgs.gov/GIS/dsdl/sir2020-5097/modelgeoref.txt ancillary.zip 1.0 ZIP file ZIP file contains directories with data associated with aquifer tests taken for the study. 0.933888 https://water.usgs.gov/GIS/dsdl/sir2020-5097/ancillary.zip bin.zip 1.0 ZIP file ZIP file contains the 64-bit executable used to run the Soil-Water-Balance model. 1.777664 https://water.usgs.gov/GIS/dsdl/sir2020-5097/bin.zip georef.zip 1.0 ZIP file ZIP file contains a shapefile which defines the extent of the model domain and active portions of the model. 0.008192 https://water.usgs.gov/GIS/dsdl/sir2020-5097/georef.zip model.zip 1.0 ZIP file ZIP file contains all of input files for the Soil-Water Balance model. Files in this directory are described in the readme.txt file. 0.077824 https://water.usgs.gov/GIS/dsdl/sir2020-5097/model.zip output.zip 1.0 ZIP file ZIP file contains output files from the Soil-Water Balance model. 2.936832 https://water.usgs.gov/GIS/dsdl/sir2020-5097/output.zip source.zip 1.0 ZIP file ZIP file containing executeable source code for SWB v1.0.1. 15.024128 https://water.usgs.gov/GIS/dsdl/sir2020-5097/source.zip None 20201117 U.S. Geological Survey Michael Ierardi mailing

445 National Center

Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) mierardi@usgs.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998