GPS or GNSS continuously operating reference stations collect and record in an autonomous fashion, geodetic data at a fixed location for relative positioning. CORS commonly refers to stations that operate 24/7 for use in surveying and mapping technologies. CORS often implies that telemetry is also available at the station for data transmission and that the architecture for dataflow, data processing, and data archiving are designed such that users can download data or get it in real time. Geophysical scientific researchers refer to these as a permanent station (as opposed to a campaign or semi-permanent station).
