What datum (reference ellipsoid) does Google Earth[1] use?
I can't seem to find where Google Earth tells explicitly what datum they use. I need some sort of valid link.
[1] The default free version that you download from Google.
asked Feb 13, 2012 at 18:40
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2 Answers
According to Does Google Earth use WGS84 (G1762)?:
Google Earth itself doesnt do any projection or anything, but by convention all the data (imagry, KML etc) 'imported' into Google Earth uses WGS84.
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2Is it important for this question, that the geoid they use is not a perfect WGS84 geoid, but an EGM96 geoid which is a sphere? groups.google.com/forum/?fromgroups=#!msg/kml-support-advanced/… Commented Apr 23, 2013 at 7:18
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Does Google's also use this datum for its Google Maps Geocoding API?– craigCommented Sep 13, 2015 at 3:17
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EPSG 3857, or spherical Mercator, is an interesting one. Since they use a different datum for input and output. alastaira.wordpress.com/2011/01/23/…– HeikkiVesanto ♦Commented Oct 30, 2015 at 11:26
The heights on google earth refer to EGM96 and are, therefore, Geoidal heights. The lat/long are referred to the WGS 84 ellipsoid.
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1That is pretty much the same as the SRTM C-Band data available on the net.– M. MukulCommented Oct 30, 2015 at 11:16
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