Arizona Continuously Operating Reference Station Network - AZCORS

The National Oceanic Atmospheric Administration (NGS) Continuously Operating Reference Stations (CORS) Network (NCN), managed by NOAA/National Geodetic Survey, provide Global Navigation Satellite System (GNSS) data, supporting three-dimensional positioning, and geophysical applications throughout the United States.  The CORS network is a multi-purpose, multi-agency cooperative endeavor.  Surveyors, GIS users, engineers, scientists, and other people who collect GPS/GNSS data can use NCN data to align their work within the National Spatial Reference System (NSRS). NCN enhanced post-processed coordinate accuracies can approach a few centimeters, both horizontally and vertically.

AZUP - CORS at Usery Park - Photo Courtesy of Brian D Conway

ADWR manages and operates the Arizona CORS Network (AZCORS). AZCORS consisted of 23 - State-owned CORS sites, 4 – cooperator-owned CORS sites managed by other Agencies, and 15 - CORS sites operated by other CORS Networks in Arizona (EarthScope and the National Park Service), for a total of 42 CORS sites. ADWR operates and maintains two virtual servers and software to operate the AZCORS network and distribute the data to other Federal, State, County, and Local agencies, commercial and private entities, and the public.  Each CORS station consists of a mounting pole, a GPS receiver, a GPS antenna, a cellular router, and associated electronics.

The CORS sites provide high-precision survey data and is the backbone of the geodetic network for Arizona that is used by Federal, State, County, and Local agencies, commercial and private entities, and the public. This data is used for any type of program, project, and/or application that requires accurate horizontal and vertical data such as surveying, mapping, infrastructure, and emergency response projects.  

How to register for AZCORS, network map, and list of mountpoints. 

AZCORS site