New Datums Are Coming in 2022! Both a new geometric and a new geopotential (vertical) datum will be released in 2022. The realization of the new datums.
Towards the unification of the vertical datums over the North American continent
Integrated and Collaborative Organizations Create Geospatial Solutions Geospatial Solutions by DBZ Achieving Great Heights: Toward a Better Vertical Reference.
Confirming 1 cm differential geoid accuracy: The Geoid Slope Validation Survey of 2011 Dru Smith 1, Simon Holmes 1, Xiaopeng Li 1, Sbastien Guillaume 2,
