Who operates it
- The Geodetic Survey Section of the Survey and Mapping Office (SMO) under the Hong Kong Lands Department operates the territory’s CORS system.
- It is part of the official geodetic infrastructure supporting surveying and mapping in Hong Kong.
Availability & access
The service is free of charge.
Provides both real-time GNSS correction services via NTRIP and downloadable RINEX data for post-processing.
Open to government agencies, private surveyors, universities, and the general public.
Coverage & scale
- The network covers the entire Hong Kong Special Administrative Region with a dense set of reference stations.
- Integrated into Hong Kong’s geodetic reference frame and connected to regional GNSS networks in Asia.
Typical use cases
- Cadastral and engineering surveying across the city’s dense urban environment.
- Infrastructure development projects such as bridges, tunnels, and transport systems.
- GIS applications for land planning and public works.
- Research in geodynamics and monitoring of structural movement in high-rise buildings.
How it’s used in practice
- Surveyors connect GNSS rovers to the Hong Kong CORS system for real-time RTK corrections.
- Post-processing users download RINEX data for static and kinematic workflows.
Notes
- The system is designed to meet the unique challenges of Hong Kong’s dense high-rise landscape.
- It is recognized for its high reliability and role in modernizing Hong Kong’s spatial data infrastructure.
Coverage Map
