Abstract

Of Heights and Gravity: A New Vertical Datum for North America and the Pacific
Track: National Mapping
Authors: William Stone

NOAA's National Geodetic Survey (NGS) has been tasked for the past 210 years with providing the positioning infrastructure for the U.S., the National Spatial Reference System (NSRS). A new vertical and gravity component of the NSRS – the North American-Pacific Geopotential Datum of 2022 (NAPGD2022) – will replace NAVD 88. NAPGD2022 will be accessed using GNSS combined with a highly accurate gravity model to provide consistent and accurate vertical control across the U.S. and its territories.