National Hydrography Dataset (NHD) - USGS National Map Downloadable Data Collection
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water bodies. Reaches are also defined on waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria established by the Federal Geographic Data Committee. For additional information on NHD, go to https://www.usgs.gov/national-hydrography.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "U.S. Geological Survey",
"@type": "vcard:Contact",
"hasEmail": "mailto:whsc_data_contact@usgs.gov"
}
|
| description | The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water bodies. Reaches are also defined on waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria established by the Federal Geographic Data Committee. For additional information on NHD, go to https://www.usgs.gov/national-hydrography. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://www.usgs.gov/the-national-map-data-delivery",
"mediaType": "application/http",
"description": "Landing page for access to the data"
},
{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
"mediaType": "text/xml",
"description": "The metadata original format",
"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.ecd2ad5e-faa2-4291-bcdb-441b7113ea41.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_ecd2ad5e-faa2-4291-bcdb-441b7113ea41 |
| keyword |
[
"Administrative watershed units",
"Area of Complex Channels",
"Area to be submerged",
"Basin",
"Bay/Inlet",
"Boundaries",
"Boundary",
"Bridge",
"Canal/Ditch",
"Coastline",
"Connector",
"Dam/Weir",
"Drainage area for surface water",
"Estuary",
"FileGDB",
"Flow direction network",
"Flume",
"ForeShore",
"Gaging Station",
"Gate",
"GeoPackage",
"HU10",
"HU12",
"HU14",
"HU16",
"HU2",
"HU4",
"HU6",
"HU8",
"HUC",
"Hazard Zone",
"Hydrographic",
"Hydrography",
"Hydrologic Unit",
"Hydrologic Unit Code",
"Hydrologic Units",
"Ice mass",
"Inundation Area",
"Lake",
"Levee",
"Line",
"Lock Chamber",
"Marsh",
"NGDA",
"NGDAID159",
"National Geospatial Data Asset",
"Nonearthen Shore",
"Playa",
"Point",
"PointEvent",
"Pond",
"Rapids",
"Reach",
"Reach code",
"Reef",
"Region",
"Reservoir",
"River",
"Rock",
"Sea/Ocean",
"Sink/Rise",
"Sounding Datum Line",
"Special Use Zone",
"Special Use Zone Limit",
"Spillway",
"Stream",
"Stream/River",
"Submerged Stream",
"Swamp",
"Topographic",
"Tunnel",
"US",
"USGS:ecd2ad5e-faa2-4291-bcdb-441b7113ea41",
"Underground Conduit",
"United States",
"WBD",
"Wall",
"Wash",
"Water Inland Theme",
"Water Intake Outflow",
"Waterfall",
"Watershed",
"Watershed Boundaries",
"Watershed Boundary Dataset",
"Well",
"artificial path",
"boundaries",
"dams",
"drainage systems and characteristics",
"inlandWaters",
"surface water",
"surface water systems"
]
|
| modified | 2023-09-13T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -179.0, 10.0, -64.0, 72.0 |
| theme |
[
"Geospatial"
]
|
| title | National Hydrography Dataset (NHD) - USGS National Map Downloadable Data Collection |
