Satellite Navigation Product Teams: Programs
http://gps.faa.gov/programs/index.htm

GPS Product Team, Federal Aviation Administration

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This site from the FAA describes the development of two satellite-based systems, the Wide Area Augmentation System (WAAS) and the Local Area Augmentation System (LAAS). These systems will provide the accuracy, availability, and integrity needed to use GPS as a primary means of navigation in the U.S. National Airspace System (NAS).

This resource is referenced here:

• Starting Point-Teaching Entry Level Geoscience:Teaching with GIS: Using GPS in Geoscience Education

Subject: Geography:Geospatial
Resource Type: Scientific Resources:Overview/Reference Work
Theme: Teach the Earth:Course Topics:GIS/Remote Sensing