TAG: GRAV-D project

Discussing the new North American-Pacific Geopotential Datum of 2022 — Part 2

August 2, 2017By

My last column highlighted some of the feedback provided by guest presenters at the NGS’ 2017 Geospatial Summit held on April 24-25 in Silver Spring, Maryland. That column also provided a discussion on the approximate differences between NAPGD2022 and NAVD 88 (and NGVD 29) at a national and local level. It was mentioned that to prepare for the new datums... read more