{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Silvia Terziotti", "hasEmail": "mailto:seterzio@usgs.gov"}, "description": "This dataset is a 900 meter resolution raster representing the depth in meters at which the probability of oxic groundwater occurring is at least 50%, for the Chesapeake Bay watershed. Oxic groundwater was defined as containing O2 values >= 2 mg/L. The values range from 0-100 meters, with 100 representing all depths greater than 100. It was created in support of models which define the oxic/suboxic interface, which is important for determining pathways for nitrate transport in groundwater and in streams.  The dataset was derived from a logistic regression of variables representing surficial geology, position in the flow system, and soil drainage.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F78C9TC5", "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.57600509e4b04f417c2c2895.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_57600509e4b04f417c2c2895", "keyword": ["Chesapeake Bay", "Delaware", "District of Columbia", "Maryland", "New York", "Pennsylvania", "USGS:57600509e4b04f417c2c2895", "Virginia", "West Virginia", "groundwater", "logistic regression", "oxic conditions"], "modified": "2020-08-26T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-81.824747007, 35.776437214, -72.686348977, 43.817197925", "theme": ["geospatial"], "title": "Depth to 50 percent probability of oxic conditions, Chesapeake Bay Watershed"}