Thursday, October 11, 2012
Representing the United States at International Symposium on Gravity and Height Systems
NGS is representing the United States at the International Symposium on Gravity, Geoid, and Height Systems in Venice, Italy on Oct. 9-12. The symposium will address the creation and maintenance of global vertical height systems, which are critical for many surveying, engineering, and scientific activities. NGS defines and manages the height system for the United States and will present research done in support of the Gravity for the Redefinition of the American Vertical Datum (GRAV-D) program, including: new techniques for modeling Earth's gravity field, methods of using GRAV-D airborne data to salvage inconsistent existing data and ultimately produce better models, and the results of a geoid slope validation survey that prove GRAV-D data will result in a better height system for the nation. For more information, contact Dan Roman.
