Dataset Identification:
Resource Abstract:
- The National Hydrography Dataset combines elements of the DLG and RF3spatial accuracy and comprehensiveness from the DLG and
network relationships, names, and a unique identifier (reach code) for surface water features from RF3. The NHD supersedes
DLG and RF3 by incorporating them, not by replacing them. Users of DLG and RF3 will find the National Hydrography Dataset
both familiar and greatly expanded and refined. The NHD provides a national framework for assigning reach addresses to water-related
entities such as industrial dischargers, drinking water supplies, fish habitat areas, wild and scenic rivers. Reach addresses
establish the locations of these entities relative to one another within the NHD surface water drainage network in a manner
similar to street addresses. Once linked to the NHD by their reach addresses, the upstream/downstream relationships of these
water-related entities and any associated information about them can be analyzed using software tools ranging from spreadsheets
to Geographic Information Systems (GIS). GIS can also be used to combine NHD-based network analysis with other data layers,
such as soils, land use, and population, to help better understand and display their respective effects upon one another.
Furthermore, because the NHD provides a nationally consistent framework for addresses and analysis, water-related information
linked to reach addresses by one organization (national, state, local) can be shared with other organizations and easily integrated
into many different types of applications to the benefit of all. The National Hydrography Dataset is designed to provide comprehensive
coverage of hydrologic data for the US. While initially based on 1:100,000-scale data, the NHD is designed to incorporate
and encourage the development of higher-resolution data required by many users. It will facilitate the improved integration
of water-related data in support of the application requirements of a growing national user community and will enable shared
maintenance and enhancement.
Citation
- Title National Hydrography Dataset (NHD) Water Bodies - Medium Resolution - NHD_CONUS_HI_Hydrography
-
- revision Date
2016-05-19
Theme keywords (theme):
imagery
infrastructure
location
map
Geospatial
Resource language:
Constraints on resource usage:
-
- Constraints
-
- Use limitation statement:
- public
point of contact
-
publisher
- individual Name {u'hasEmail': u'mailto:edmo@hq.dhs.gov', u'@type': u'vcard:Contact', u'fn': u'Open Data (MGMT)'}
- organisation Name
{u'@type': u'org:Organization', u'name': u'Under Secretary / Management'}
-
- Contact information
-
-
- Address
-
- electronic Mail Address
Back to top:
Metadata data stamp:
2016-05-19
Metadata contact
-
publisher
Metadata scope code
dataset
Metadata standard for this record:
ISO 19115:2003 - Geographic information - Metadata
standard version:
ISO 19115:2003
Metadata record identifier:
2657
Metadata record format is ISO19139 XML (MD_Metadata)