The US National Geodetic Survey has announced the release of an updated alpha version of the GEOID2022 geoid model.
GEOID2022 is the foundation for determining precise heights in the modernised US National Spatial Reference System, which is due for implementation in 2026.
The major updates to GEOID2022 include:
- The use of the Geodetic data Grid eXchange Format, a new Open Geospatial Consortium Standard.
- Data contributions from Canadian and Mexican partner agencies.
- The first releases of deflection-of-the-vertical models and gravity models.
- A new user experience that allows users to visualise the models as well as see the changes from previous models.
According to the National Geodetic Survey, GEOID2022 offers improved accuracy and data for navigation, positioning, and the myriad applications of geodesy — including autonomous navigation, precision agriculture, civil surveying, early warning systems, and improved floodplain mapping.
