{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Michael E. Wieczorek", "hasEmail": "mailto:mewieczo@usgs.gov"}, "description": "This data set represents the average atmospheric (wet) deposition, in kilograms per \nsquare kilometer, of inorganic nitrogen for the year 2002 compiled for every catchment \nof NHDPlus for the conterminous United States. The source data set for wet deposition \nwas from the USGS's raster data set atmospheric (wet) deposition of inorganic \nnitrogen for 2002 (Gronberg, 2005).\n\t\t\nThe NHDPlus Version 1.1 is an integrated suite of application-ready geospatial \ndatasets that incorporates many of the best features of the National Hydrography \nDataset (NHD) and the National Elevation Dataset (NED). The NHDPlus includes \na stream network (based on the 1:100,00-scale NHD), improved networking, \nnaming, and value-added attributes (VAAs). NHDPlus also includes elevation-derived \ncatchments (drainage areas) produced using a drainage enforcement technique \nfirst widely used in New England, and thus referred to as \"the New England Method.\" \nThis technique involves \"burning in\" the 1:100,000-scale NHD and when available \nbuilding \"walls\" using the National Watershed Boundary Dataset (WBD). The \nresulting modified digital elevation model (HydroDEM) is used to produce hydrologic \nderivatives that agree with the NHD and WBD. Over the past two years (2007-2008), \nan interdisciplinary team from the U.S. Geological Survey (USGS), and the U.S. \nEnvironmental Protection Agency (USEPA), and contractors, found that this \nmethod produces the best quality NHD catchments using an automated process \n(USEPA, 2007). The NHDPlus dataset is organized by 18 Production Units that \ncover the conterminous United States.\n\t\t\nThe NHDPlus version 1.1 data are grouped by the U.S. Geologic Survey's  Major \nRiver Basins (MRBs, Crawford and others, 2006).  MRB1, covering the New \nEngland and Mid-Atlantic River basins, contains NHDPlus Production Units 1 \nand 2.  MRB2, covering the South Atlantic-Gulf and Tennessee River basins, \ncontains NHDPlus Production Units 3 and 6.  MRB3, covering the Great Lakes, \nOhio, Upper Mississippi, and Souris-Red-Rainy River basins, contains NHDPlus \nProduction Units 4, 5, 7 and 9.  MRB4, covering the Missouri River basins, \ncontains NHDPlus Production Units 10-lower and 10-upper.  MRB5, covering the \nLower Mississippi, Arkansas-White-Red, and Texas-Gulf River basins, contains \nNHDPlus Production Units 8, 11 and 12.  MRB6, covering the Rio Grande, \nColorado and Great Basin River basins, contains NHDPlus Production Units \n13, 14, 15 and 16.  MRB7, covering the Pacific Northwest River basins, contains \nNHDPlus Production Unit 17.  MRB8, covering California River basins, contains \nNHDPlus Production Unit 18.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9AN1NRE", "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.d9e75531-c9ed-4b9e-bfd7-781cfce29863.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_d9e75531-c9ed-4b9e-bfd7-781cfce29863", "keyword": ["Atmospheric deposition", "CALI", "COGB", "California", "Catchment", "Conterminous United States", "GLMR", "Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy", "Inlandwaters", "Inorganic nitrogen", "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", "Rio Grande, Colorado, and Great Basin", "SAGT", "SPARROW", "South Atlantic-Gulf and Tennessee", "USGS:d9e75531-c9ed-4b9e-bfd7-781cfce29863", "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: Average Atmospheric (Wet) Deposition of Inorganic Nitrogen, 2002"}