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.

  • Globalisation of aquatic plant pests

    Research Project
    New Zealand's geographic isolation and relatively recent colonization provide the opportunity for a unique genetic analysis of plant movement patterns to be explored.
  • Sedimentation in New Zealand estuaries

    Research Project
    Estuaries in New Zealand are experiencing sedimentation at higher rates than before humans arrived here: this represents a loss both for land and estuary productivity. We need to better understand what has been happening so that we can predict the future and fight these losses.
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    Southwest Pacific Tropical Cyclone Outlook: Near average or slightly above average numbers for many islands likely, and increased activity in the late season near Tonga and Niue

    News article
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    NIWA’s Kaharoa sets sail to deploy robots across the Pacific Ocean

    News article
  • A haul of hoki.

    Fisheries and EcoConnect

    Service
    EcoConnect provides the New Zealand fishing industry with a unique operational decision-making tool to help mitigate commercial, operational, and environmental risk.
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    Password Information

  • Aquatic weed risk assessment model (AWRAM)

    Research Project
    A significant threat to the biosecurity of New Zealand's freshwater habitats comes from plants that have been intentionally introduced.
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    Kiwi great whites cross the ditch to Bondi

    News article
  • Tracking river plumes

    Research Project
    River plumes form one of the primary connectors between river-estuary systems and the coastal ocean.
  • Oceans 20/20

    Research Project
    The Ocean Survey 20/20 (OS 20/20) programme aims to provide NZ with better knowledge of its ocean territory.
  • Weed risk assessment

    NIWA has developed a model to assess the potential weed risk of aquatic plants.
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    Urban impacts on the environmental, social, economic and cultural values of water bodies

    NIWA is leading research aimed at helping local government to plan the development of New Zealand's cities and settlements in a way which protects and enhances the services and values associated with urban water bodies.