Updates to Products and Models within the North American-Pacific Geopotential Datum of 2022

January 14, 2025  |  2:00-3:00 pm, ET

Presenters: Kevin Ahlgren, Ph.D., Geodesist, Spatial Reference System Division, Gravity and Heights Branch, NGS, and Ryan Hardy, Ph.D., Geodesist, Geosciences Research Division, NGS

A geoid model is a mathematical description of the irregular surface that approximates Earth's mean sea level and takes into account Earth's gravitational variations. GEOID2022 offers improved accuracy and data for navigation, positioning, and the myriad applications of geodesy, including autonomous navigation, precision agriculture, civil surveying, early warning systems, and improved floodplain mapping. The other models in the NAPGD2022 portfolio are derivatives of GEOID2022 and are used in many specialized applications like inertial navigation systems, geodetic leveling corrections, and corrections to other surveying observations.