Gravity for the Redefinition of the American Vertical Datum (GRAV-D)

March 10, 2016

Presented by: Monica Youngman, U.S. National Geodetic Survey

Since 2008, NOAA's National Geodetic Survey (NGS) has been flying airborne gravity over the nation to allow for the creation of an improved gravity field through blending of satellite, airborne, and surface data sources. By 2022, NOAA will transition to a gravity-defined vertical datum, accessible to anyone with a Global Navigation Satellite System (GNSS) receiver. This presentation will outline the progress of the airborne survey, the release of data products to both the NGS geoid team and the public via the GRAV-D website, and describe current research to improve collection and processing methods.