Tarapunga Rock is a submerged rock at the entrance of Doubtful Sound
Over 80 cruise ships pass through this entrance every year
Physical AtoNs ($60k each) were ineffective because they were destroyed by extreme weather
Environment Southland needed a solution to prevent ships from hitting the rock.
Solution
Guardianmarks the rock and makes it visible to vessels entering Doubtful Sound.
The solution uses a virtual AIS buoy from a remote, solar powered shore location.
To mitigate the radio shadow in a certain coverage area, enhanced safety is provided in the form of increased transmission rate of the virtual AIS mark for outgoing vessels.
Benefits
Safety is enhanced for ships sailing to and from Doubtful Sound
No incidents of collisions with the submerged Tarapunga rock have been reported.
