{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Alexander D. Riddle", "hasEmail": "mailto:ariddle@usgs.gov"}, "description": "A previously constructed numerical model (https://pubs.usgs.gov/pp/2007/1737a/) simulating \nthe regional groundwater-flow system in the vicinity of the Wright-Patterson Air Force Base \n(WPAFB) near Dayton, Ohio, was updated to incorporate current hydrologic stresses and \nconditions and improve the usefulness of the model for water-supply planning and protection. \nThe Great Miami Buried Valley Aquifer was designated a sole-source aquifer in 1988 and \nprovides the supply for the substantial water use needs in the Dayton area.  Hydrogeologic \ninvestigations of groundwater flow in the nearby WPAFB have been ongoing since the early \n1990s, when the USGS first partnered with WPAFB to model groundwater flow near the Base \nin an effort to identify and control migration of environmental contamination that may have \nresulted from past disposal practices. Effective source water protection strategies depend on \nan up-to-date delineation of the areas that contribute groundwater to withdrawal sites that rely \non the Great Miami Buried Valley Aquifer. The original model, which used MODFLOW-2000 to \nsimulate average steady-state conditions from 1997 to 2001, was reconstructed and converted \nto use MODFLOW 6 groundwater modeling software and recalibrated to represent average \ngroundwater flow conditions for October 2018. The steady-state, three-dimensional, three-layer \nMODFLOW 6 model of the aquifer, in conjunction with the particle-tracking program MODPATH7, \nwas used to generate time-of-travel flow paths for groundwater particles in three scenarios: \n(1) backtracking particles intercepted by thirteen existing groundwater withdrawal sites servicing \nWPAFB, (2) backtracking particles intercepted by eight prospective groundwater withdrawal sites, \nand (3) forward tracking particles released at eight potential locations near WPAFB. This USGS \ndata release contains all the input and output files for the simulations described in the associated \nmodel documentation report (https://doi.org/10.3133/sir20215115)", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9FN1JK4", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.673e944a-f8ef-4eb7-808e-bed978efca76.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_673e944a-f8ef-4eb7-808e-bed978efca76", "keyword": ["City of Dayton", "Dayton", "Greene County", "Groundwater", "Groundwater Model", "InlandWaters", "MODFLOW 6", "MODPATH 7", "Montgomery County", "Ohio", "PEST++", "USGS:673e944a-f8ef-4eb7-808e-bed978efca76", "Wright-Patterson Air Force Base", "contributing area", "environment", "geoscientificInformation", "inlandWaters", "particle tracking", "usgsgroundwatermodel"], "modified": "2021-11-03T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-84.556483, 39.504463, -83.786248, 40.005018", "theme": ["geospatial"], "title": "MODFLOW 6 and MODPATH 7 model data sets used for the update of the groundwater-flow model for the Great Miami Buried Valley Aquifer in the vicinity of Wright-Patterson Air Force Base near Dayton, Ohio"}