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Dave Doyle, You Rock!
I’ve been going through links recommended by BeerLeggers. Lots of really good material that explains the concepts of [msg=239067]Ellipsoids, Datums, and Geoids[/msg].
Dave Doyle’s Webinar Introduction to Geodetic and Tidal Vertical Datums is a must-watch for anyone that would like to learn about the geodesy that our surveying measurements are based on.
Dave
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