{
  "accessLevel": "public",
  "bureauCode": [
    "010:12"
  ],
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "Chesapeake Conservancy",
    "hasEmail": "mailto:cic@chesapeakeconservancy.org"
  },
  "description": "The Chesapeake Bay Hyper-Resolution Hydrography Database is intended to facilitate analysis of the landscape in the Chesapeake Bay watershed through identification of headwater and other low-order streams or drainage features (e.g. ditches) that, to date, may be absent from existing hydrography data products. A full description of the methodology and accuracy assessment is provided in the accompanying report titled: \"Hydrography Mapping Supporting Modeling and Targeted Conservation: Project Overview and Lessons Learned\". The data products were developed by the Chesapeake Conservancy and the University of Maryland Baltimore County (UMBC) as part of a 6-year Cooperative Agreement between the Chesapeake Conservancy and the U.S. Environmental Protection Agency (EPA) and a separate Interagency Agreement between the USGS and the EPA to provide geospatial support to the Chesapeake Bay Program Office.\nThe data release is structured by eight-digit level hydrologic unit codes (HUC8) for the Chesapeake Bay watershed. Each HUC8 contains seven files (see below) and uses the following nomenclature: where HUC_ID and WATERSHED_NAME are placeholders for HUC8 ID(s), and local watershed name(s) (e.g., \"Hydrographic Datasets for Hydrologic Unit 02050101 - Upper Susquehanna\")\nData Release Structure:\nProject Overview and Lessons Learned.pdf (Project overivew, methodology and accuracy assessment)\nhuc_[HUC_ID]_streamLine.zip (Stream Lines)\nhuc_[HUC_ID]_streamPoly.zip (Stream Polygons)\nhuc_[HUC_ID]_agDitches.zip (Agricultural Ditches)\nhuc_[HUC_ID]_rdDitches.zip (Road Ditches)\nhuc_[HUC_ID]_geomorphon1m.tif (Geomorphon 1-meter)\nhuc_[HUC_ID]_geomorphon10m.tif (Geomorphon 10-meter)\nmetadata_[HUC_ID].xml (metadata xml)",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://doi.org/10.5066/P1GRAPEX",
      "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.679cfd09d34e89501cd2d6e1.xml",
      "format": "XML",
      "mediaType": "text/xml",
      "title": "Original Metadata"
    }
  ],
  "identifier": "http://datainventory.doi.gov/id/dataset/USGS_679cfd09d34e89501cd2d6e1",
  "keyword": [
    "02050302",
    "Chesapeake Bay Watershed",
    "Pennsylvania",
    "USGS:679cfd09d34e89501cd2d6e1",
    "Upper Juniata",
    "hydrology",
    "imageryBaseMapsEarthCover",
    "land surface characteristics",
    "river reaches",
    "river systems"
  ],
  "modified": "2025-05-23T00:00:00Z",
  "publisher": {
    "@type": "org:Organization",
    "name": "U.S. Geological Survey"
  },
  "spatial": "-78.61124425322505, 40.12805749324142, -77.66073856414103, 40.88560420883521",
  "theme": [
    "geospatial"
  ],
  "title": "Hydrographic Datasets for Hydrologic Unit 02050302 - Upper Juniata"
}