NOAA Center for Operational Oceanographic Products and Services, NOAA National Geodetic Survey, NOAA Office of Coast Survey


Converts elevation data between tidal, orthometric, and ellipsoidal vertical datums, allowing users to establish a common reference system for all elevation data sets. The conversion tool is based on a hydrodynamic model to convert between tidal and orthometric datums.


  • Transform geospatial data between vertical datums using several geoid models

Additional Information

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