definition for: #Catch2022

The proposed National Geodetic Survey (NGS, a federal agency under NOAA and the department of Commerce)) change of National Spatial Reference Framework (the official geodetic reference framework for the United States and some its territories) from NAD83 to ITRF is slated to occur in 2022. This will include the change to a purely gravity based vertical datum to supersede NAVD88. The changes to the day to day operations of surveyors and others who will reference the new framework are nicknamed "Catch 2022". This move to a truly earth-centered-earth-fixed (ECEF) is expected to improve geodetic fidelity but could also prove to be a steep learning curve for many end user constituencies.