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What are Geodetic Datums image

What are Geodetic Datums

Learn the basic concepts behind geodetic datums, where they are used, and why it is important to know about and use the correct datums.



How Were Geodetic Datums Established? image

How Were Geodetic Datums Established?

Explore the history of geodetic datums in the United States, and how they were established at a national level to assure consistency across mapping applications.



What is the Status of Today’s Geodetic Datums? image

What is the Status of Today’s Geodetic Datums?

Examine the use of the current primary geodetic datums used in the U.S., NAD 83 and NAVD 88, the challenges in maintaining these datums, and the inconsistencies that arise when they are used together with the latest satellite-based mapping technologies.



What’s Next for Geodetic Datums? image

What’s Next for Geodetic Datums?

Look at current plans for developing more accurate horizontal and vertical datums, (referred to respectively as geometric and geopotential datums), the expected benefits and impacts, and the importance of preparing now to adopt these new datums.


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