GLONASSARY

CORS (Continuously Operating Reference Station, or Service) – As the name implies, this refers to a positioning receiver that is dedicated for the purpose of continuously collecting positions and comparing the solutions to a known, or fixed, answer. Not every dedicated reference station is a CORS station; a CORS station is one that has been certified by the National Geodetic Survey (NGS, a division of the National Oceanographic and Atmospheric Administration) as being reference-worthy, according to their standards. The reference stations maintained by ALDOT are either established CORS stations or pending CORS stations, per NGS approval. In addition to maintaining the upkeep of these stations, ALDOT also provides real-time connectivity to each station for customers; the result is a Real-Time Kinematic (RTK) service whereby the customer does not necessarily have to purchase their own base station. When a user refers to utilizing real-time corrections in this manner, it is often said as “using CORS”.

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