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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    Charts and posters form

    Charts and posters webform
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    NatHERS climate files 2012 - data request

    NatHERS climate files 2012 - data request webform
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    Improved sustainability of the demersal line fishery in Tonga

    Research Project
    The Tongan deepwater demersal line fishery is a valuable source of income, livelihood, and social well-being for the people of Tonga. The fishery has a history of boom-and-bust cycles with fluctuating catches and poor economic returns.
  • Hotspot Watch 1 November 2023

    Hotspot
    A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent.
  • Freshwater biosecurity

    Reducing the risk of new freshwater invasive species, minimising the impacts of these species, and developing methods for reducing or eradicating those populations.
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    Species Key – Coastal Taxonomic Resource Tool

    A web-based taxonomic resource tool has been developed to improve the accuracy and consistency in soft sediment estuarine and coastal benthic intertidal and shallow subtidal macroinvertebrate identification across New Zealand.
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    Coastal hazards

    NIWA's coastal hazards research is improving knowledge and providing tools to help understand coastal hazards and potential impacts for Aotearoa New Zealand – both now and in the future as sea levels continue to rise.
  • Hotspot Watch 26 October 2023

    Hotspot
    A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent.
  • High Frequency Water Quality Monitoring Guidance

    Research Project
    Updated 2025 – guidance for water quality monitoring in rivers, lakes and estuaries
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    NIWA Biodiversity Memoirs for purchase

    The NIWA Biodiversity Memoirs are comprehensive, definitive, illustrated reference works that capture the rigorous, peer-reviewed scientific study of New Zealand’s distinctive marine fauna and flora.
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    National Centre contacts

    You can find contact details for our science staff under these National Centre lists.
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    Our people

    Find out more about our management teams and key National Centre contacts. To locate individuals working at NIWA simply use our staff search below.