NOAA Expands GPS Stations

NOAA’s National Geodetic Survey has recently incorporated 43 new GPS tracking sites into the Continuously Operating Reference Station (CORS) network, including 13 sites established by the FAA as part of their Wide Area Augmentation System (WAAS). Four of the new WAAS sites are located in Alaska, four in Canada, and five in Mexico.
 WAAS provides differential GPS correctors for safe airline navigation across North America. These correctors help more precisely determine a position and enable pilots to determine the three-dimensional location of their aircraft with an accuracy of a few meters. The WAAS network now contains 38 GPS tracking sites. "The CORS network is a critical NOAA product that helps ensure the consistency and accuracy of the nation's spatial reference system," notes John H. Dunnigan, assistant administrator of NOAA's National Ocean Service. "These additional stations are part of a continuing effort by NOAA to improve the accuracy of the spatial reference system and to be on the cutting edge of positioning technology." The addition of the new sites significantly improves both the geographic coverage of the CORS network as well as the accuracy with which CORS users can position things, including property boundaries, transportation arteries, buildings and other map-worthy objects.