Geo Tools: National Geodetic Survey Continuously Operating Reference Stations KMZ File
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Continuously Operating Reference Stations (CORS) operated by the National Geodetic Survey (NGS) provide Global Navigation Satellite System (GNSS) data consisting of carrier phase and code range measurements. Surveyors, GIS users, engineers, scientists, and the public at large that collect GPS data can use CORS data to improve the precision of their positions. As of August 2015, the CORS network almost 2,000 stations, contributed by over 200 different organizations, and the network continues to expand.
I have been using a Google Earth KMZ file that contains all the locations and basic information of CORS. Data was downloaded from ngs.noaa.gov and then merged together to create one large file. It was then symbolized based on the sampling rate of the GPS receiver at the CORS location (e.g. 1s, 5s, 15s, 30s etc.) and each point contains basic information and a link to the full data sheet.
This handy little file has been pretty helpful with planning GPS control networks on many of my LiDAR projects throughout the US. If you think the file could be of some use to you, then feel free to download the CORS Google Earth file here.
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