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.

  • Government review of weather forecasting system

    Media release
    – Statement by NIWA Chief Executive John Morgan
  • Fascinating finds from NIWA’s annual squid survey

    Media release
    Earlier this month, NIWA welcomed the Auckland University of Technology ‘Squid Squad’ – a team of scientists from the Lab for Cephalopod Ecology and Systematics – to unbox and categorise cephalopod species taken from voyages around the country.
  • Matariki viewing prospects 2023

    Media release
    NIWA meteorologists say people living in the North Island are likely to get the best views of the Matariki star cluster, particularly on Friday morning.
  • 2023 so far: NZ’s record-breaking weather

    Media release
    We’re only halfway through the year, but new NIWA analysis shows some parts of New Zealand have already recorded more than a year’s worth of rain.
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    Impacts of sediment on freshwater and estuarine and freshwater fish species

    These fact sheets bring together existing scientific information on these effects, along with expert scientific knowledge, in an easy-to-read format by community groups and land-water managers interested in protecting m­ahinga kai.
  • El Niño: NIWA explains

    News article
    El Niño is on its way, with whispers it could cause the Earth’s warmest ever year. But what is it? NIWA scientists tell all.
  • NIWA’s freshwater ecologists helping regional councils remove the barriers to fish migration

    News article
    About 76 per cent of indigenous freshwater fish species, that’s 39 out of 54, are threatened with extinction or at risk of becoming threatened.
  • Kaikōura’s deep seabed is rapidly recovering, says NIWA

    Media release
    Areas of Kaikōura’s seabed show promising signs of recovery just four years after the 2016 earthquake, says NIWA.
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  • Mussel farms may benefit the environment

    Media release
    A new study is doing a deep dive into whether mussel farms could help reduce nitrogen in New Zealand waters.
  • Identification of significant ecological areas for the Otago coastal marine area

    News article
    Long-term protection of Otago’s coastal habitats took a step closer to reality after more than 100 marine Significant Ecological Areas were identified.
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    Oceanic area names and chart