1. NOAA's National Geodetic Survey?s National Spatial Reference System And The National Height Modernizatio

The National Geodetic Survey (NGS) is responsible for the establishment and maintenance of the National Spatial Reference System (NSRS). NGS manages a network of Continuously Operating Reference Stations (CORS) that provides Global Navigation Satellite System (GNSS) data and serves as the backbone of the NSRS.  Our goal is to maintain a network of stations to serve as control for any project undertaken by local surveyors.  In addition, numerous other applications benefit from an... J.D. Rigney