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Service Description: <div style='text-align:Left;'><div><div><p><span>The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated set of geospatial data layers, including the best available National Hydrography Dataset (NHD), the 10-meter 3D Elevation Program Digital Elevation Model (3DEP DEM), and the National Watershed Boundary Dataset (WBD). The NHDPlus HR combines the NHD, 3DEP DEMs, and WBD to create a stream network with linear referencing, feature naming, "value added attributes" (VAAs), elevation-derived catchments, and other features for hydrologic data analysis. The stream network with linear referencing is a system of data relationships applied to hydrographic systems so that one stream reach "flows" into another and "events" can be tied to and traced along the network. The VAAs provide capabilities for upstream and downstream navigation with linear referencing, analysis, and modeling. The elevation derived catchments are used to associate other landscape attributes, such as land cover, with stream segments.</span></p></div></div></div>

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• USGS NHD Streams (0)

Description: The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated set of geospatial data layers, including the best available National Hydrography Dataset (NHD), the 10-meter 3D Elevation Program Digital Elevation Model (3DEP DEM), and the National Watershed Boundary Dataset (WBD). The NHDPlus HR combines the NHD, 3DEP DEMs, and WBD to create a stream network with linear referencing, feature naming, "value added attributes" (VAAs), elevation-derived catchments, and other features for hydrologic data analysis. The stream network with linear referencing is a system of data relationships applied to hydrographic systems so that one stream reach "flows" into another and "events" can be tied to and traced along the network. The VAAs provide capabilities for upstream and downstream navigation with linear referencing, analysis, and modeling. The elevation derived catchments are used to associate other landscape attributes, such as land cover, with stream segments.

Copyright Text: The U.S. Geological Survey (USGS) and the U.S. Environmental Protection Agency (USEPA).

Spatial Reference: 4269  (4269)  LatestVCSWkid(0)


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Spatial Reference: 4269  (4269)  LatestVCSWkid(0)

Full Extent:

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Spatial Reference: 4269  (4269)  LatestVCSWkid(0)

Units: esriDecimalDegrees

Document Info:

Title: USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) for 4-digit Hydrologic Unit - 1801
Author:
Comments: The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated set of geospatial data layers, including the best available National Hydrography Dataset (NHD), the 10-meter 3D Elevation Program Digital Elevation Model (3DEP DEM), and the National Watershed Boundary Dataset (WBD). The NHDPlus HR combines the NHD, 3DEP DEMs, and WBD to create a stream network with linear referencing, feature naming, "value added attributes" (VAAs), elevation-derived catchments, and other features for hydrologic data analysis. The stream network with linear referencing is a system of data relationships applied to hydrographic systems so that one stream reach "flows" into another and "events" can be tied to and traced along the network. The VAAs provide capabilities for upstream and downstream navigation with linear referencing, analysis, and modeling. The elevation derived catchments are used to associate other landscape attributes, such as land cover, with stream segments.
Subject: These data are intended for geographic display and analysis at the watershed level. The data should be displayed and analyzed at scales appropriate for 1:24,000-scale data. No responsibility is assumed by the U.S. Geological Survey in the use of these data.
Category:
Keywords: elevation,environment,geoscientific,imagery,base maps,inland waters,geospatial analysis,streamflow,streams,rivers,lakes,reservoirs,hydrographic datasets,hydrographic features,Hydrology,water resources,river reaches,channels,water bodies,watersheds,drainage basins,catchments,land surface characteristics,topography,cartography,earth sciences,geographic information systems,digital elevation models,streamflow data,water quality,NHDPlus High Resolution (NHDPlus HR),HU-4 Subregion
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