{"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 the \nWashburn Unit of the Chequamegon-Nicolet National Forest using the analytic element \nprogram GFLOW (Haitjema, 1995). Significant streams and lakes in the model domain \nare represented at varying levels of detail as linesink elements fully connected to the \ngroundwater system. The highest level of detail is given to surface water features within \nthe Forest Unit, while greatly simplified features around the perimeter of the model \nprovide a boundary condition for the groundwater flow system. Groundwater discharge \nto the linesinks is computed, and routed through the surface water network as base \nflow. Recharge to the groundwater system was obtained from a separate soil-water-balance \n(SWB) model, which uses topography, soils, land use, and climatic data to estimate recharge \nas deep drainage from the soil zone. Estimated average annual recharge rates were supplied \nto the GFLOW model on a regular 1-km grid covering the model domain, using the Hybrid \nGFLOW-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 \nfor the simulations described in the published report, which can be found in the main \ndirectory of this data release.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F7VH5MS6", "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.4c7a85d3-c57d-4e79-8c5e-c8f9717e077f.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_4c7a85d3-c57d-4e79-8c5e-c8f9717e077f", "keyword": ["Bayfield County", "Chequamegon-Nicolet National Forest", "Copper Falls Formation", "Douglas County", "GFLOW", "Groundwater", "Groundwater Model", "InlandWaters", "PEST", "Soil-Water-Balance Code", "USGS:4c7a85d3-c57d-4e79-8c5e-c8f9717e077f", "Washburn Unit", "Wisconsin", "environment", "geoscientificInformation", "inlandWaters", "usgsgroundwatermodel"], "modified": "2020-11-17T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-91.698316, 46.137638, -90.902338, 46.814611", "theme": ["geospatial"], "title": "GFLOW model used to characterize the groundwater resources of the Washburn Unit of the Chequamegon-Nicolet National Forest, Wisconsin"}