[Qgis-user] Re: off topic, wgs 84 datum

John Callahan john.callahan at udel.edu
Wed Nov 3 06:08:04 PDT 2010


The latest revision of WGS84 that took place in 2004 was based on the
gravitational model EGM96.  I'm not sure at what confidence level "valid"
equates to.  There will likely be a new WGS84 revision soon based on EGM2008
or other global gravitational model.  I don't think WGS84 is becoming
obsolete.

- John

**************************************************
John Callahan, Research Scientist
Delaware Geological Survey, University of Delaware
URL: http://www.dgs.udel.edu
**************************************************


On Wed, Nov 3, 2010 at 8:52 AM, <mtnbiketrail at zzz.com> wrote:

> this wiki entry says wgs 84 is to become obsolete??
>
> http://en.wikipedia.org/wiki/WGS84#cite_note-0
>
>
> Tom
> _______________________________________________
> Qgis-user mailing list
> Qgis-user at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-user
>
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