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What to expect

Your coordinates will change

The magnitude of change in your coordinates will vary based on the datum you are currently using, your geographic location, and the epoch of the new coordinates. View the maps below to see the approximate horizontal and height changes when the new NSRS TRFs are adopted and coordinates refer to reference epoch 2020.00.

Approximate Ellipsoid Height Change

Map showing approximate ellipsoid height changes across North America

Approximate Orthometric Height Change

Map showing approximate orthometric height changes

Approximate Horizontal Change North American Plate

Map showing approximate horizontal changes across the North American Plate

Approximate Horizontal Change Pacific Plate

Map showing approximate horizontal changes across the Pacific Plate

Learn More

Read publications that describe technical decisions about the definition of the new reference frames.

Blueprint for the Modernized NSRS

beta.ngs.noaa.gov

An official website of the National Geodetic Survey and the National Oceanic and Atmospheric Administration

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