File Type : Shuttle Radar Topography Mission Data (SRTM)
Compatible with (Win10, Win8, Win7, Vista and WinXP)
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GIS data file stored in the Shuttle Radar Topography Mission (SRTM) format; contains global elevation data captured during NASA space missions; may include up to a one arcsecond resolution; used for analyzing the earth's topography and for generating topographical images.
Some data in the original SRTM dataset is missing due to limits of the space missions. These areas are referred to as "voids." Efforts have been made to fill in the missing gaps using interpolation methods. For example, the National Geospatial-Intelligence Agency (NGA) created the "Version 2" and "Version 2.1" datasets, which include modified data. Therefore, some downloaded HGT files may include interpolated data.
HGT files are named with longitude and latitude coordinates. For example, N00W177.hgt contains data for one degree of latitude (00-01 North) and one degree of longitude (177-178 West).
NOTE: The "HGT" extension is an abbreviation for "height."
You can see a list of software programs here on www.easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.
Software that can be used to open HGTfiles: