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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    Map North

    Education Resource
    This is a sub-tropical climate zone, with warm humid summers and mild winters.
  • Applying for vessel time

    Find out how you can have access to NIWA's research vessels to carry out marine research voyages.
  • Wastewater Treatment

    Wastewater treatment is the separation and extraction of solid waste from liquid waste, and the removal of nutrients and pathogens.
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    Chemical contamination and aquaculture

    What are the potential sources of chemical contamination from aquaculture activities?
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    13 Beach types

    Learn about different kinds of beachs and how they form, with diagrams and examples of each type.
  • Special Climate Statement 2017-18 Summer

    Sea surface temperatures in the southern Tasman Sea rose to exceptionally high levels in late 2017 and early 2018. These temperatures were far above any others previously observed at that time of year in the region, and extended west from New Zealand to Tasmania and mainland southeast Australia.
  • Clouds

    Education Resource
    Common questions about clouds, how they are formed and how they behave.
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    CASAL

    CASAL is an advanced software package developed by NIWA for fish stock assessment.
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    Cropping activities

    The land used to produce crops is usually flat to gently rolling so it can be tilled, sowed, and harvested.
  • What is Kaitiaki Tools?

    Kaitiaki Tools is a guide to teach people (especially hapū and iwi groups) who manage the resource consent process.
  • 2019/2020 Blake Ambassadors

    Internships