The SRTM tiles are DEM data divided in to one degree blocks for the surface of the earth. The data is divided into two resolutions, one at 3 arc seconds (90m) and one at 30 arc seconds (900m). 80% of the earths surface is covered for all of the area between 60 degrees N and 53 degrees S. SRTM data is in WGS84 datum and the elevation units are in metres. Digital Elevation Data for creating contours and other spatial analysis. World DEM data. These data are also available free of charge at http://earthexplorer.usgs.gov/
Creator
NASA / USGS
Date of creation
2000
Data edited date
2005
Temporal extent
2000 to 2005
Publisher
Land Information Worldwide Mapping, LLC
Scale
3 arc second (approx. 90m)
Datum
WGS84 vertical=WGS84/EGM96 geoid
Data type
Require acknowledgement to use
None
Cost for use
None
Medium
Web
Subjects
Geography
Open data
Restrictions
FACULTY STAFF STUDENTS
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