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

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    Water Level Instruments

    There are different types of instrument available for measuring water level.
  • Southwest Pacific climate

    Our southwest Pacific research focuses on recent and historic climate and weather activity, including our involvement in ACRE Pacific data rescue.
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    Water Quality Monitoring Capabilities

    Research Project
    NIWA provides national capabilities in Water Quality Monitoring.
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    Tuna - maturation and identifying sex

    The sex of tuna is not determined genetically, as in some other organisms.
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    Nelson-Marlborough

  • Methane

    Facility
    Methane (CH4) is the second most important greenhouse gas after CO2 that is produced by human activities.
  • Kaitiaki Tools

    Service
    Easing the resource consent process
  • Mahinga kai - what species interests you?

    In Kaitiaki Tools the term mahinga kai generally refers to indigenous freshwater species that have traditionally been used as food, tools, or other resources.
  • Stepping into the river

    Feature story
    NIWA discusses, in depth, this year's most asked question—what is happening to our fresh waterways?
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    Meteorologist for a day

    Within a range of meaningful contexts students will be able to make statements about implications and possible actions consistent with the results of a statistical investigation and to find and authenticate data measures such as mean, median, mode, inter-quartile range, and range.
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    Standardised Precipitation Index (SPI)

    The Standardised Precipitation Index (SPI) is a simple measure of drought (and also of very wet conditions) and is based solely on the accumulated precipitation for a given time period.
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    Summer Series 6: Nippy creatures that share your swim

    News article