Thursday, March 10, 2011

NGS to Update the North American Datum of 1983

The National Geodetic Survey (NGS) has completely reprocessed Global Navigation Satellite System (GNSS) data collected at stations in the global network of the International GNSS Service (IGS) and in the regional network of the U.S. Continuously Operating Reference Stations (CORS). The focus of the effort has been to obtain a new realization of the North America Datum of 1983 (NAD 83)-the horizontal datum for the United States-in the framework of the International Terrestrial Reference Frame of 2008 (ITRF2008). The ITRF is the global reference frame used for latitude, longitude, and height positions. In order to help users prepare for the release of this new product, NGS hosted an informative webinar on March 8. For more information, contact Jake Griffiths.