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 take and thermal

    How may thermal energy generation activities influence water resources?
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    Water temperature and thermal

    Generating electricity creates a lot of wasted energy in the form of heat, which then needs to be cooled before it can be discharged into the environment.
  • Riparian vegetation and hydro

    What are the potential influences of hydro-dam activities on riparian vegetation?
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    Sediments and hydro

    How may hydro-dams influence sediments in waterways?
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    Altered water flow and hydro

    How do hydro-dams potentially influence water flows?
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    Environmental Information Update

    Publication series
    The latest updates about NIWA's EI work delivered to your inbox in our e-newsletter.
  • Environmental information services

    NIWA provides a multitude of monitoring and information services underpinning New Zealand's science and environmental management: sky-to-sea, sensor-to-service, data-to-knowledge.
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    Salinity Buoy - NIWA SB1

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    Examples and expertise

    NIWA has wide-ranging expertise in toxicology testing.
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    Standard tests

    NIWA offers both water and sediment tests, using a range of organisms.
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    Customary fisheries management tools

    Examples of customary fisheries management tools.
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    Stay at home snapper

    News article