{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Michael E. Wieczorek", "hasEmail": "mailto:mewieczo@usgs.gov"}, "description": "This dataset represents the area of each physiographic province (Fenneman and Johnson, 1946) \nin square meters,  compiled for every catchment of NHDPlus for the conterminous United States. \nThe source data are from Fenneman and Johnson's Physiographic Provinces of the United States, \nwhich is based on 8 major divisions, 25 provinces, and 86 sections representing distinctive areas \nhaving common topography, rock type and structure, and geologic and geomorphic history \n(Fenneman and Johnson, 1946).\n\t\t\nThe NHDPlus Version 1.1 is an integrated suite of application-ready geospatial datasets that \nincorporates many of the best features of the National Hydrography Dataset (NHD) and the \nNational Elevation Dataset (NED). The NHDPlus includes a stream network (based on the \n1:100,00-scale NHD), improved networking, naming, and value-added attributes (VAAs). \nNHDPlus also includes elevation-derived catchments (drainage areas) produced using a \ndrainage enforcement technique first widely used in New England, and thus referred to as \n\"the New England Method.\" This technique involves \"burning in\" the 1:100,000-scale NHD \nand when available building \"walls\" using the National Watershed Boundary Dataset (WBD). \nThe resulting modified digital elevation model (HydroDEM) is used to produce hydrologic \nderivatives that agree with the NHD and WBD. Over the past two years, an interdisciplinary \nteam from the U.S. Geological Survey (USGS), and the U.S. Environmental Protection \nAgency (USEPA), and contractors, found that this method produces the best quality NHD \ncatchments using an automated process (USEPA, 2007). The NHDPlus dataset is organized \nby 18 Production Units that cover the conterminous United States.\n\t\t\nThe NHDPlus version 1.1 data are grouped by the U.S. Geologic Survey's  Major River Basins \n(MRBs, Crawford and others, 2006).  MRB1, covering the New England and Mid-Atlantic River \nasins, contains NHDPlus Production Units 1 and 2.  MRB2, covering the South Atlantic-Gulf \nand Tennessee River basins, contains NHDPlus Production Units 3 and 6.  MRB3, covering \nthe Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy River basins, contains \nNHDPlus Production Units 4, 5, 7 and 9.  MRB4, covering the Missouri River basins, contains \nNHDPlus Production Units 10-lower and 10-upper.  MRB5, covering the Lower Mississippi, \nArkansas-White-Red, and Texas-Gulf River basins, contains NHDPlus Production Units 8, 11 \nand 12.  MRB6, covering the Rio Grande, Colorado and Great Basin River basins, contains \nNHDPlus Production Units 13, 14, 15 and 16.  MRB7, covering the Pacific Northwest River \nbasins, contains NHDPlus Production Unit 17.  MRB8, covering California River basins, contains \nNHDPlus Production Unit 18.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9J504I1", "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.7f58629d-7338-42e4-b34b-51e6b71fc83d.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_7f58629d-7338-42e4-b34b-51e6b71fc83d", "keyword": ["CALI", "COGB", "California", "Catchment", "Conterminous United States", "GLMR", "Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy", "Inlandwaters", "LMTG", "Lower Mississippi, Arkansas-White-Red, and Texas-Gulf", "MORI", "MRB", "MRB1", "MRB2", "MRB3", "MRB4", "MRB5", "MRB6", "MRB7", "MRB8", "Major River Basin", "Missouri", "NAWQA", "NEMA", "NHDPlus", "New England and Mid-Atlantic", "PANW", "Pacific Northwest", "Physiographic Provinces", "Rio Grande, Colorado, and Great Basin", "SAGT", "SPARROW", "South Atlantic-Gulf and Tennessee", "USGS:7f58629d-7338-42e4-b34b-51e6b71fc83d", "environment", "geoscientificInformation", "inlandWaters"], "modified": "2020-11-17T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-127.910792, 23.243486, -65.327751, 51.657387", "theme": ["geospatial"], "title": "Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: Physiographic Provinces"}