Mapping Aotearoa's Seafloor
A visual demonstration of Toitū Te Whenua LINZ's seafloor mapping programme
Overview
Seabed mapping gives us data we need to update charts and meet our obligations to make navigation around Aotearoa safer. It gives us a detailed view of the seafloor so we get a better picture of how the marine environment has changed with time, weather and geological events.
HYPLAN is Toitū Te Whenua LINZ's hydrographic survey programme to map the seafloor. Survey areas are based on a hydrographic risk assessment , and are reviewed annually. We are currently undertaking a new risk assessment to identify new priority areas.
We seek partnering opportunities to collect datasets that can be used beyond safety of navigation such as: resilience to natural events, management and protection of marine resources, and scientific research.
What areas would you like to see included? Jump to the Suggest a survey section.
Recent surveys
Click through the tabs using the arrow on the right of the map to see information on recent surveys we've completed.
Suggest a survey
Are you looking for up-to-date seafloor data to help your organisation make decisions?
We regularly partner with other organisations when we plan our seafloor surveys. Click the button below to tell us what you need.
If you have collected seafloor data yourself, please let us know by emailing hydro@linz.govt.nz
Case studies
Hydrographic datasets can be used for broader applications than nautical charting.
Click the button below to learn about potential uses.
Contact us
If you'd like to get in contact with the Toitū Te Whenua LINZ Hydrographic team for any reason, please email hydro@linz.govt.nz