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coordinate reference systems

Geodesy

The Vertical Datum: Or is that Mean Sea level?

What is a Vertical Datum? The Geodetic Glossary (2009) defines height as ‘distance, measured along a perpendicular, between a point and a reference surface’. This definition is concise and direct but leaves a vagueness concerning the reference surface. This reference surface is the Vertical Datum. A datum is required to reach accurate and reliable Read more…

By geospatial, 2 years1 year ago
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