About this document
Understanding Geodetic Datum Basics is a document available to read on EtoBox.
This document discusses geodetic datums and coordinate reference systems used to define locations on Earth. It explains that datums define the size and shape of the Earth and coordinate systems used for mapping. Hundreds of datums have been used historically, evolving from spherical to ellipsoidal models. Careful selection of datums is needed due to differences between them and potential errors when converting between systems. The document outlines common geometric models of Earth including spherical, ell
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