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Update on Survey programme
LINZ undertakes Hydrographic surveys to continually improve the data it holds on New Zealand’s seabed, including:
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- Determining the least depths over any navigational hazards such as rock shoals, wrecks, etc.
- Collecting continuous tide measurements to establish a datum.
- Recording tide levels and streams.
- Determining the positions of Aids to Navigation for the mariner such as lights and beacons.
- Determining the shape and location of the coastline as well as important features on the coast.
- Collecting information within the port areas.
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In 2007/2008 Akaroa Harbour, Abel Tasman, Milford Sound, Doubtful & Thompson Sounds and Dusky & Breaksea Sounds were surveyed.
This data is used to create and maintain official charts and publications.
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