On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Atmospheric analysis

NIWA has been using advanced scientific instruments to measure atmospheric trace gases and isotopes for over 50 years.

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    North Island sediment chart

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    North Island Bathymetry Coverage Chart

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    Foveaux and Campbell Charts

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    Coasts

    NIWA aims to provide the knowledge needed for the sound environmental management of our marine resources.
  • New maps reveal places at risk from sea-level rise

    Media release
    New maps from NIWA and the Deep South National Science Challenge show areas across Aotearoa New Zealand that could be inundated by extreme coastal flooding.
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    Our Science

    NIWA is New Zealand's largest and pre-eminent provider of climate, freshwater and ocean science.
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    Critter of the deep

    Video series
  • Ocean waves

    Oceans FAQ

    Education Resource
    A collection of answers to commonly-asked questions relating to our oceans work, including 'What is a mass spectrometer?' and 'What is ocean acidification?'
  • Pacific Rim

    Climate FAQ

    Education Resource
    Answers to a range of frequently asked, climate-related questions, including 'how is past climate measured?' and 'what is the greenhouse effect?'
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    End of Summer Snowline Survey

    Glaciers don't lie.
  • Dobson ozone spectrophotometer dome. Measures total column Ozone.

    Atmosphere FAQ

    Atmosphere frequently asked questions
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    Training courses

    NIWA offers a range of courses each year, presented at a number of venues according to need and the level of interest.