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Dates

Publication Date
Time Period
2014
File Modification Date
2014-10-01 06:31:00

Summary

The USGS Elevation Availability service from The National Map (TNM) shows the best available resolution of downloadable elevation data, and is updated approximately every two weeks with National Elevation Dataset (NED) releases. NED 2- (in Alaska only), 1-, and 1/3-arc-second data are staged for download by 1x1 degree tiles in ArcGrid, GridFloat, or IMG formats in The National Map viewer, while NED 1/9 arc-second data is staged by 15x15 minute tiles in IMG format only. For additional information on the NED, go to http://ned.usgs.gov/.

Contacts

Attached Files

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USGSElevationAvailability.xml
Original FGDC Metadata

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9.31 KB

Purpose

This dynamic overlay map service provides visualization of the free data that is available for download from The National Map at http://viewer.nationalmap.gov/viewer.
Browse graphic showing availability over Topo base map with legend.
Browse graphic showing availability over Topo base map with legend.

Map

Communities

  • National Geospatial Program
  • The National Map

Tags

Provenance

Data source
Link Processing
Added to Sciencebase on Fri Oct 17 16:04:32 MDT 2014 by processing URL <b>USGSElevationAvailability.xml</b> in item <a href="https://www.sciencebase.gov/catalog/item/544171bee4b0b0a643c73c19">https://www.sciencebase.gov/catalog/item/544171bee4b0b0a643c73c19</a> <br />

Additional Information

Identifiers

Type Scheme Key
processingUrl http://thor-f5.er.usgs.gov/ngtoc/metadata/waf/services/overlays/USGSElevationAvailability.xml

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