Folders: ROOT > ScienceBase Catalog > National Geospatial Program > The National Map > National Hydrography Dataset (NHD) - USGS National Map Downloadable Data Collection ( Show all descendants )
5 results (46ms)
Location
Folder
ROOT _ScienceBase Catalog __National Geospatial Program ___The National Map ____National Hydrography Dataset (NHD) - USGS National Map Downloadable Data Collection Filters
Date Range
Types Contacts Categories Tag Types Tag Schemes |
The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated datset of geospatial data layers, including the most current 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...
Types: Citation;
Tags: Administrative watershed units,
Area of Complex Channels,
Area to be submerged,
Basin,
Bay/Inlet,
Categories: Data
Categories: Data
|
|