Entity_Type:
Entity_Type_Label: gshydd
Entity_Type_Definition: ESRI Shapefile
Entity_Type_Definition_Source: ESRI
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: AREA
Attribute_Definition: Area of the polygon in native units
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 73001569.213
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: .001
Attribute:
Attribute_Label: PERIMETER
Attribute_Definition: Perimeter of polygon in native units
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 146471.524
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: .001
Attribute:
Attribute_Label: PIREW90HYD
Attribute_Definition: Internal ID
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 410
Attribute_Units_of_Measure: integer count
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: HYPMAJOR1
Attribute_Definition:
Major codes denote hydrography as the major feature category to which a line element belongs (as opposed to property boundaries, roads, etc within DLGs).
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -99999
Enumerated_Domain_Value_Definition: Not applicable or unclassified water body
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: unknown
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 50
Enumerated_Domain_Value_Definition:
Identifies the major category to which element belongs (hydrography)
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: HYPMINOR1
Attribute_Definition: Minor codes assigned to any single hydrography area element.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -99999
Enumerated_Domain_Value_Definition: Not applicable or unclassified water body
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: unknown
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 111
Enumerated_Domain_Value_Definition: Marsh, wetland,swamp,bog
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 116
Enumerated_Domain_Value_Definition: Bays, estuaries, gulfs, oceans, seas
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 412
Enumerated_Domain_Value_Definition: Stream
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 414
Enumerated_Domain_Value_Definition: Ditch or canal
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 421
Enumerated_Domain_Value_Definition: Lake or pond
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: HYPMAJOR2
Attribute_Definition: Internal ID
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -99999
Enumerated_Domain_Value_Definition: Not applicable or unclassified water body
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: unknown
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 50
Enumerated_Domain_Value_Definition:
Identifies the major category to which element belongs (hydrography)
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 59
Enumerated_Domain_Value_Definition: coincident feature
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: HYPMINOR2
Attribute_Definition: Internal ID
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -99999
Enumerated_Domain_Value_Definition: Not applicable or unclassified water body
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: unknown
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition: unknown
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 610
Enumerated_Domain_Value_Definition: Intermittent
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 616
Enumerated_Domain_Value_Definition: Navigable transportation
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 619
Enumerated_Domain_Value_Definition: interpolated elevation
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: HYPMAJOR3
Attribute_Definition: Internal ID
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -99999
Enumerated_Domain_Value_Definition: Not applicable or unclassified water body
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: unknown
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 50
Enumerated_Domain_Value_Definition:
Identifies the major category to which element belongs (hydrography)
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 51
Enumerated_Domain_Value_Definition: water surface elevation, whole feet, 9999 or less
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: HYPMINOR3
Attribute_Definition: Internal ID
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -99999
Enumerated_Domain_Value_Definition: Not applicable or unclassified water body
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: unknown
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition: unknown
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 625
Enumerated_Domain_Value_Definition: unkonwn
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: HYPMAJOR4
Attribute_Definition: Internal ID
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -99999
Enumerated_Domain_Value_Definition: Not applicable or unclassified water body
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: unknown
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 51
Enumerated_Domain_Value_Definition: water surface elevation, whole feet, 9999 or less
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: HYPMINOR4
Attribute_Definition: Internal ID
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -99999
Enumerated_Domain_Value_Definition: Not applicable or unclassified water body
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: unknown
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition: unkowwn
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 32
Enumerated_Domain_Value_Definition: open water reach flag
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 42
Enumerated_Domain_Value_Definition: terminal stream id
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 47
Enumerated_Domain_Value_Definition: terminal base level code
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: HYPMAJOR5
Attribute_Definition: Internal ID
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -99999
Enumerated_Domain_Value_Definition: Not applicable or unclassified water body
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: unknown
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: HYPMINOR5
Attribute_Definition: Internal ID
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -99999
Enumerated_Domain_Value_Definition: Not applicable or unclassified water body
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: unknown
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: HYPMAJOR6
Attribute_Definition: Internal ID
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -99999
Enumerated_Domain_Value_Definition: Not applicable or unclassified water body
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: unknown
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: HYPMINOR6
Attribute_Definition: Internal ID
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -99999
Enumerated_Domain_Value_Definition: Not applicable or unclassified water body
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: unknown
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: HYPNAME
Attribute_Definition: The water feature name.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string
Attribute:
Attribute_Label: HYPTYPE
Attribute_Definition: The type of water feature.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string
Entity_and_Attribute_Overview:
The National Hydrography Dataset is a comprehensive set of digital spatial data that encodes information about naturally occurring and constructed bodies of water, paths through which water flows, and related entities. The information encoded about features includes classification by type, other characteristics, a unique common identifier, the feature length or area, and (rarely) elevation of the surface of water pools and a description of the stage of the elevation. For reaches, encoded information includes a reach code, the date the reach code was assigned, a unique common identifier, the reach length or area, and, for transport reaches, the stream level. Names and their identifiers in the Geographic Names Information System, are assigned to reaches or, if no reach is available, to features. The data also contain relations among reaches that encode the direction of water flow, metadata, and information that supports the exchange of future updates and improvements to the data. The names and definitions of all feature types, characteristics, and values are in U.S. Geological Survey, 1999, Standards for National Hydrography Dataset: Reston, Virginia, U.S. Geological Survey. A link to the document provided in the original metadata (mapping.usgs.gov/standards/) is no longer valid. Information about tables and fields in the data are available from the user documentation for the National Hydrography Dataset.
Entity_and_Attribute_Detail_Citation:
The names and definitions of all feature types, characteristics, and values are in U.S. Geological Survey, 1999, Standards for National Hydrography Dataset: Reston, Virginia, U.S. Geological Survey. A link to the document provided in the original metadata (mapping.usgs.gov/standards/) is no longer valid. Information about tables and fields in the data is available from the user documentation for the National Hydrography Dataset at
http://nhd.usgs.gov. The National Map - Hydrography Fact Sheet is also available at:
https://pubs.er.usgs.gov/publication/fs06002.