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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    Summer Series 10: Super snapper! Delicious!

    News article
  • What is Kaitiaki Tools?

    Kaitiaki Tools is a guide to teach people (especially hapū and iwi groups) who manage the resource consent process.
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    Tornadoes - how frequently do they hit New Zealand?

    News article
    Tornadoes, like the one that hit Auckland's western suburbs today, are relatively rare events in New Zealand.
  • Mining

    Mining is the extraction of metal and mineral resources, such as gold, coal, petroleum, and ironsand
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    Mean daily minimum temperatures (°C)

    These datasets are available in a range of formats.
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    Tuna - diet

    Longfin eels are the largest and longest-lived fish in New Zealand's freshwaters, and where they are present they are the top predator.
  • Carbon dioxide

    Facility
    Atmospheric carbon dioxide (CO2) is measured continuously at Baring Head, providing the longest running record of this type in the Southern hemisphere.
  • Development of sustainable water supply and treatment systems for a coastal Fijian village

    Research Project
    This collaborative NZaid project worked with coastal Fijian villagers at Votua on the Coral Coast of Viti Levu to develop pragmatic water supply and waste treatment solutions to protect public health and reduce contamination of coastal waters.
  • 2012-2013 Drought

    The 2012-2013 drought affected the entire North Island plus the west coast of the South Island.
  • Guidelines for sampling freshwater fisheries

    We have prepared a breakdown of the different guidelines that are available for sampling freshwater fisheries. The overview provides links to key documents that explain what should be considered when designing fish monitoring studies and how to implement the various sampling techniques.