Friday, April 12, 2019

Interactive Data Map for GEOID18 Model Released

A new interactive map shows differences between the GEOID18 and GEOID12B models. The updated map shows areas where data gaps were filled, provides a new error estimation layer, and shares information about each of the marks that were used to create the model. NGS recently released the beta version of GEOID18 for public review and comment. GEOID18 will replace GEOID12B to deliver improved GPS-derived NAVD 88 heights measured from sea level. The new model will allow users to access NAVD 88 heights from GPS and will be the last hybrid geoid model NGS creates before the North American-Pacific Geopotential Datum of 2022 replaces NAVD 88. NGS encourages users to explore the map and send questions or comments to NGS Feedback.

For more information, contact: Galen Scott