GNSS applications in Maritime Navigation
- Sea: All passenger ships and cargo ships larger than 500 gross tonnage (300 tons for international voyages) are regulated and rely heavily on GNSS for navigation. At least three devices are typically fitted on vessels for redundancy reasons. GNSS systems for maritime navigation are also widespread across commercial and recreational vessels, both overseas and in high traffic areas.
- Inland Waterways (IWW): GNSS is also used to ensure safe navigation in inland waterways (rivers, canals, lakes and estuaries).
GNSS applications in Maritime Positioning
- Traffic management and surveillance: These activities are supported by GNSS-based systems including AIS and LRIT.
- Search and Rescue is the search for and provision of aid to people in distress or danger. Different types of devices can make use of GNSS positioning
- Fishing vessel control: GNSS positioning enables Vessel Monitoring Systems to check the position of fishing vessels, as well as the time spent in international and foreign waters, protected marine areas, etc.
- Port operations: Transit progress, docking and loading-unloading operations are monitored through GNSS-based technologies.
- Marine engineering: GNSS is used to support marine construction activities (e.g. cable and pipeline laying).