http://ngtoc.usgs.gov/
Location
1400 Independence Road
Rolla
, MO
65401-2602
USA
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To advance the USGS 3D National Topography Model (3DNTM) including the next generation of the 3D Elevation Program (3DEP) and the 3D Hydrography Program, USGS is producing a new one-meter resolution seamless digital elevation model (DEM) product. The project is funded by the Inflation Reduction Act. This dataset is a 1-m seamless DEM prototype that was created from several different 3D Elevation Program (3DEP) Original Product Resolution source DEMs. The DEM covers the spatial extent of the Lower Androscoggin River Watershed 8-digit hydrologic unit (01040002), as delineated in the USGS Watershed Boundary Dataset. This prototype data is being released as a precursor to the new product that will be seamless across...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 3D Elevation Program (3DEP),
3D Hydrography Program (3DHP),
3D National Topography Model (3DNTM),
Androscoggin County,
Carroll County, All tags...
Coos County,
Cumberland County,
Franklin County,
Kennebec County,
Lower Androscoggin Watershed HU8,
Maine,
National Geospatial Directorate (NGD),
National Geospatial Program (NGP),
New Hampshire,
Oxford County,
Sagadahoc County,
U.S. Geological Survey,
USGS Science Data Catalog (SDC),
United States,
boundaries,
elevation,
geoscientificInformation, Fewer tags
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U.S. Geological Survey Alaska Region inland bathymetric survey data are compiled to create a survey inventory providing survey records including survey system and product information, and links to survey datasets when available. Dataset footprints including this information and showing the location and extent of surveys can be downloaded as a shapefile or geodatabase, and can be accessed through Spatial Services provided here.
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service,
Shapefile;
Tags: Acoustic Sonar,
Acoustic Sonar,
Alaska,
Bathymetry,
Bathymetry, All tags...
Echo Sounder,
Echo sounder,
Hydrography,
Hydrography,
Inland Water,
Inland waters,
Lake,
Lake,
Lidar,
Lidar,
Multibeam,
Multibeam,
River,
River,
Single Beam,
Single beam,
Topobathymetry,
Topobathymetry,
acoustic sonar,
bathymetry,
echo sounder,
hydrography,
inland waters,
lake,
lidar,
multibeam,
river,
single beam,
topobathymetry, Fewer tags
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The HydroLink App is no longer supported. We recommend exploring the Hydrography Addressing Tool or related Python Hydrolink methods to meet your hydrolink needs. The HydroLink Tool aids in generating a linear reference for point data to the NHDPlusV2.1 Medium Resolution and NHD High Resolution hydrography layers. The tool employs the researcher’s local, field-based knowledge of the geospatial features where data were collected to improve both the spatial accuracy of the research data and assist in the linkage to these national surface water datasets. Once the point location data are verified and linear referencing is complete, the output dataset includes the verified latitude and longitude coordinates and additional...
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