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National Hydrography Dataset (NHD)
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. High resolution NHD 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.) Like the 1:100,000-scale NHD, high resolution NHD
contains reach codes for networked features and isolated lakes, flow direction, names,
stream level, and centerline representations for areal water bodies. Reaches are also
defined to represent 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 set out by the Federal Geographic
Data Committee.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "Office of the Associate Director for Water",
"@type": "vcard:Contact",
"hasEmail": "mailto:gs-w-model-data-management@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. High resolution NHD 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.) Like the 1:100,000-scale NHD, high resolution NHD contains reach codes for networked features and isolated lakes, flow direction, names, stream level, and centerline representations for areal water bodies. Reaches are also defined to represent 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 set out by the Federal Geographic Data Committee. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.5066/P933X6VB",
"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.630995a1-c554-4255-a4ed-4cc8e98369e1.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_630995a1-c554-4255-a4ed-4cc8e98369e1 |
| keyword |
[
"Artificial Path",
"Canal / Ditch",
"FWHYDROGRAPHY",
"Hydrography",
"Lake / Pond",
"Reach",
"Reservoir",
"Spring / Seep",
"Stream / River",
"Swamp / Marsh",
"USGS:630995a1-c554-4255-a4ed-4cc8e98369e1",
"environment",
"geoscientificInformation",
"inlandWaters"
]
|
| modified | 2020-11-17T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -124.7333, 24.5333, -067.9500, 49.3833 |
| theme |
[
"Geospatial"
]
|
| title | National Hydrography Dataset (NHD) |
