Friday, August 13, 2010

NGS Contributes to International Collaborative Effort in the Unification of Height Systems

During the week of August 8 to 13, staff from the National Geodetic Survey (NGS) participated in the American Geophysical Union (AGU) Meeting of the Americas, in Iguacu Falls, Brazil. NGS presented posters on the inter-comparison between future height systems in North and South America to ensure continuity in the overlapping geographical areas of the Caribbean, the Gulf of Mexico, and Central America. NGS also presented its work with airborne gravity data collected as a part of its Gravity for the Redefinition of the America Vertical Datum Project (GRAV-D) to better strengthen the relationship between satellite missions and terrestrial gravity data. NGS will lead the collaborative effort between North and South America in the unification of height systems throughout the Americas. The ultimate goal is to have a unified height system for consistency throughout the hemisphere. For more information, contact Dan Roman.