{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Wesley O. Zell", "hasEmail": "mailto:wzell@usgs.gov"}, "description": "A previously developed steady state three-dimensional groundwater flow \n(MODFLOW-2005) and advective transport (MODPATH6) model was \nused to examine subsurface nitrate transport to wells and receiving \nstreams in two subcatchments contributing to the Upper Chester River, \nMaryland. Multiple scenarios of flow and transport parameter fields \n(recharge, hydraulic conductivity, and porosity) were previously \ncalibrated against groundwater levels, stream discharge measurements, \nand atmospheric tracer measurements, as described in \nhttps://doi.org/10.1016/j.jhydrol.2018.02.006; those multiple scenarios \nare also available as a USGS data release (https://doi.org/10.5066/F7SN087R).  \nTwo of the flow and transport scenarios calibrated in Zell et al. (2018) were \nselected to simulate nitrate transport, with MODPATH6 files updated as \nnecessary to represent advective transport from observation wells with \nsubsurface nitrate measurements.  The development of the model input \nand output files included in this data release and the application of the \nmodels to nitrate transport simulation are documented in the Journal of \nEnvironmental Quality article (https://doi.org/10.2134/jeq2018.11.0408).", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9VWY11M", "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.b31d826e-6f1e-462b-81ca-55ac246f9660.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_b31d826e-6f1e-462b-81ca-55ac246f9660", "keyword": ["Aquia aquifer", "Chester River", "Groundwater", "Groundwater Model", "InlandWaters", "Kent County", "MODFLOW2005", "MODPATH6", "Maryland", "Transport Model", "USGS:b31d826e-6f1e-462b-81ca-55ac246f9660", "environment", "geoscientificInformation", "inlandWaters", "usgsgroundwatermodel"], "modified": "2020-11-17T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-76.01677, 39.25341, -75.89283, 39.33294", "theme": ["geospatial"], "title": "MODFLOW-2005 and MODPATH6 models used to simulate groundwater flow and nitrate transport in two tributaries to the Upper Chester River, Maryland"}