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National Elevation Dataset (NED) for Idaho

The U.S. Geological Survey has developed a National Elevation Dataset (NED). The NED is a seamless mosaic of best-available elevation data. The 7.5-minute elevation data for the conterminous United States are the primary initial source data. In addition to the availability of complete 7.5-minute data, efficient processing methods were developed to filter production artifacts in the existing data, convert to the NAD83 datum, edge-match, and fill slivers of missing data at quadrangle seams. One of the effects of the NED processing steps is a much-improved base of elevation data for calculating slope and hydrologic derivatives. The specifications for the NED 1 arc second (about 30-meter) and 1/3 arc second (about 10-meter) data are: Geographic coordinate system Horizontal datum of NAD83, except for AK which is NAD27 Vertical datum of NAVD88, except for AK which is NAVD29 Z units of meters. Geospatial elevation data are utilized by the scientific and resource management communities for global change research, hydrologic modeling, resource monitoring, mapping, and visualization applications. These data were provided to the University of Idaho Library on CD/DVD in March of 2000 by Mr. Tracy Fuller, USGS Idaho Mapping Liaison, Boise, Idaho.
FieldValue
Modified
2019-03-19
Release Date
1999-01-02
Identifier
0cb3eed1-a5c9-4ecf-a2b8-82879b307866
NKN Identifier
0a42d2bc-700a-4cf2-a7ac-ad6b892da7f0
Spatial / Geographical Coverage Area
POLYGON ((-117.31201171875 41.921898926944, -117.31201171875 48.997519458457, -110.93994140625 48.997519458457, -110.93994140625 41.921898926944))
Spatial / Geographical Coverage Location
Idaho, USA
Temporal Coverage
Friday, January 1, 1999 - 00:00
Language
English (United States)
License
Author
U.S. Geological Survey EROS Data Center
Contact Name
Customer Services Representative
Contact Email
Public Access Level
Public