The California Spatial Reference System is a high-accuracy vertical and horizontal geodetic network serving as California's official reference system for all surveying activities. It is composed of a network of California CORS sites, campaign surveys such as the projects listed below, and the geodetic models necessary to utilize the network of sites.
Campaigns / Height Mod Projects
Pocket GPS Manager (PGM) overview and projects (includes PGM-entered campaign info and maps) PGM allows campaign managers and surveyors to upload occupation information and data using client software running on a PDA or PC. This is stored in the PGM server and displayed on campaign maps and summary tables on the CSRC website.
Map of all campaign projects
Pre-approval for Professional Land Surveying Services for 2007-2009
note: non-PGM-entered campaigns are listed below
Differential Leveling to CGPS Stations in Southern California This project was undertaken by CSRC to establish a North American Vertical Datum of 1988 (NAVD88) differential elevation on a selection of continuous GPS (CGPS) stations that are part of the Southern California Integrated GPS Network (SCIGN) array. (more, including related documents)
Tuolumne County Height Modernization Project (map) (final report)
The Tuolumne County GPS Network was constructed by Condor Earth Technologies under contract to Tuolumne County. The project was carried out under the auspices of the CSRC and was submitted to NGS in January, 2003. (more)
South San Francisco Bay Height Modernization Project (map) (final report)
The South San Francisco Bay Height Modernization Project is a combined horizontal and vertical control campaign carried out by the CSRC as a 2-centimeter Height Modernization project, and was submitted to NGS for blue-booking in the late autumn of 2003. The horizontal accuracy of this network is Order B. The private contractor for both the GPS and leveling portions of this network was Johnson-Frank and Associates. (more)
Glenn County Campaign
The Glenn County project was developed to serve as a basis for monitoring subsidence in the county. It was observed to NGS Height Modernization guidelines. The project was observed in the spring of 2004. It is presently being processed by CSRC before submission to NGS. (more)
Other resources
The "Check CA Site Code / NGS PID" lookup utility provides site information and coordinates for any CGPS or campaign site in California, given a four-character site ID or NGS PID. A list of all CA sites is also available.
Example Basis of Bearings statement when utilizing CGPS sites for mapping control
2007.0 CA CORS site coordinates
High Precision Geodetic Network (HPGN) was established by the California Department of Transportaton and the National Geodetic Survey as a statewide GPS control network. CSRC analyzes data colleted from this network.
CRTN The California Real Time Network provides real-time GPS connectivity in California.
WInSAR at CSRC Synthetic Aperture Radar images of California archived at CSRC.
