{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Andrew T. Leaf", "hasEmail": "mailto:aleaf@usgs.gov"}, "description": "The model simulates two-dimensional groundwater flow and base flow in streams in \nthe Medford Unit of the Chequamegon-Nicolet National Forest using the analytic \nelement program GFLOW (Haitjema, 1995). Significant streams and lakes in the \nmodel domain are represented at varying levels of detail as linesink elements fully \nconnected to the groundwater system. The highest level of detail is given to surface \nwater features within the Forest Unit, while greatly simplified features around the \nperimeter of the model provide a boundary condition for the groundwater flow system. \nGroundwater discharge to the linesinks is computed, and routed through the surface \nwater network as base flow. Recharge to the groundwater system was obtained from \na separate soil-water-balance (SWB) model, which uses topography, soils, land use, \nand climatic data to estimate recharge as deep drainage from the soil zone. Estimated \naverage annual recharge rates were supplied to the GFLOW model on a regular 1-km \ngrid covering the model domain, using the Hybrid GFLOW-MODFLOW feature of GFLOW.\n\t\t\nThe model was calibrated to groundwater levels, interpreted lake stages, and estimated \nannual base flows in streams, \\with an emphasis on data collected since 1970. Parameters \nrepresenting hydraulic conductivity, groundwater recharge, and surface water bed-sediment \nresistance were adjusted using the parameter estimation program PEST, to produce \nsimulated groundwater levels and base flow estimates that agree with field measurements, \nand input parameter values that are consistent with previous studies and the conceptual \nunderstanding of the area. This USGS data release contains all of the input and output for \nthe simulations described in the published report, which can be found in the main directory \nof this data release.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F7416W1P", "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.03fa02a9-40c7-48b7-b953-4818c10320db.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_03fa02a9-40c7-48b7-b953-4818c10320db", "keyword": ["Chequamegon-Nicolet National Forest", "Copper Falls Formation", "GFLOW", "Groundwater", "Groundwater Model", "InlandWaters", "Medford Unit", "PEST", "Price County", "Soil-Water-Balance Code", "Taylor County", "USGS:03fa02a9-40c7-48b7-b953-4818c10320db", "Wisconsin", "environment", "geoscientificInformation", "inlandWaters", "usgsgroundwatermodel"], "modified": "2020-11-17T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-90.974929, 45.010639, -90.036697, 45.733314", "theme": ["geospatial"], "title": "GFLOW model used to characterize the groundwater resources of the Medford Unit of the Chequamegon-Nicolet National Forest, Wisconsin"}