Coordinate Reference Systems
Remarks
Uses Geoid18 hybrid model. Replaces 12B model. See information source for further information. For reversible alternative to this transformation see NAD83(2011) to NAD83(2011) + VIVD09 height (2) (code 9623).
Frequently Asked Questions
What is the accuracy of the NAD83(2011) to VIVD09 height transformation?
This transformation (EPSG:9231) has an accuracy of 0.015m using the Geographic3D to GravityRelatedHeight (NGS bin) method. Area of use: Virgin Islands, US - onshore.