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.

  • Water abstraction and agriculture

    How do agricultural activities potentially influence water flows?
  • Freshwater monitoring and reporting

    Research Project
    NIWA's research on freshwater monitoring and reporting is one of three research areas within the 'Values, Monitoring and Outcomes' (VMO) programme led by Landcare Research.
  • Education and information

    Education Resource
    Explore our education and information section to find out about climate and climate change, weather, our atmosphere, estuaries and more.
  • Products

    Service
    Here is our complete range of products.
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    Tuna - commercial fisheries

    Commercial eel fishery in New Zealand began in earnest in the 1960s and expanded rapidly until the early 1970s
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    Our management

    NIWA is managed by an Executive Team reporting to the Chief Executive Officer. Science and operational matters are handled by two sub-groups.
  • Submerged plants as bio-indicators

    Submerged plants have a number of advantages that favour their use as indicators of lake ecological condition.
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    Impacts

    Diverting water changes a waterways natural flow
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    Kōaro

    Kōaro are excellent climbers and like clear, swiftly flowing, forested streams.
  • Blogs

    Follow NIWA's scientists as they explore the natural world, make new discoveries and share how people use their science.
  • Huka Falls

    Our mission

    NIWA's mission is to conduct leading environmental science to enable the sustainable management of natural resources for New Zealand and the planet.
  • RV Tangaroa in Antarctica

    Our partners & funders

    NIWA has working relationships with hundreds of organisations in New Zealand and overseas.