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.

  • Shifting Sands – the end of a Kiwi dream

    Feature story
    The Kiwi dream of owning a beachfront property with panoramic views of the ocean is under threat—and not just for financial reasons.
  • Coming from overseas?

    If you're moving to join us here at NIWA, we want to say thanks for choosing us by helping you with your big move.
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    Map E North

    Education Resource
    Sheltered by high country to the west, the eastern zone of the North Island enjoys a dry, sunny climate.
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    Droughts

    Generally speaking, a drought is defined as a rainfall deficit which restricts or prevents a human activity – for example, farming or power generation.
  • 2014 UV Workshop

    Presented papers, arranged by workshop programme.
  • Drought Indicator Maps

    Up-to-date drought indicator maps are shown here.
  • Atmospheric ozone, ultraviolet radiation, and stratospheric change

    Research Project
    CFCs have damaged the ozone layer and led to higher UV levels and increased health risks. Our role is to understand the causes and effects of ozone depletion, to inform the public of the risk.
  • Estimating design wind speeds in complex terrain

    Research Project
    The current method for calculating wind speed-up is inadequate, and can grossly under-predict correct design wind speeds in NZ's complex terrain.
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    13 Beach types

    Learn about different kinds of beachs and how they form, with diagrams and examples of each type.
  • Sea-level rise

    Education Resource
    One of the major consequences of climate change is rising global sea levels.
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    Tuna - elvers and recruitment

    Once in freshwater, glass eels develop into darker pigmented juvenile eels known as elvers.