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.

  • Retired scientist completes four-decade-long bibliographic work

    Media release
    After 40 years of work, retired NIWA fisheries scientist Larry Paul has just published a 793-page bibliography of references to New Zealand marine fishes. Everything known and ichthyological that appears in our waters is referenced in the voluminous tome.
  • Fabulous Fiordland

    An interactive guide to the marine biota of the Fiordland (Te Moana o Atawhenua) Marine Area.
  • It’s the warmest winter on record - again

    Media release
    Aotearoa New Zealand has just experienced its warmest winter on record – well exceeding the previous record which was set just last year.
  • Irrigation Insight

    Feature story
    Irrigation Insight is a joint industry programme funded by MBIE to examine, on working farms, the ease and effectiveness of using high-resolution weather forecasting, production potential, and drainage estimations for on-farm water management.
  • The weather’s better in lockdown, right?

    Media release
    A record-equalling top temperature of 23ᵒC in Akaroa on Tuesday prompted a feeling of déjà vu for NIWA forecaster Ben Noll.
  • Stewart Island gets new electronic weather station

    Media release
    A closer eye is now being kept on Stewart Island’s climate thanks to the installation of a new electronic weather station.
  • Hauraki Integrated Land-Water Modelling

    Research Project
    The Inner Hauraki Gulf/Tīkapa Moana ecosystem is facing proliferations of algae, de-oxygenation, reduced pH (acidification), reduced water clarity, and muddier sediments arising from historical and future land-derived contaminant inputs.
  • Scientists reveal how landmark ban gave planet fighting chance

    Media release
    Without the global CFC ban we’d already be facing the reality of a “scorched earth”, according to researchers measuring the impact of the Montreal Protocol.
  • Surveying scallops populations with artificial intelligence

    Developing innovative, non-invasive alternatives for surveying scallops and harvesting.
  • Report: Trends analysis for selected indicators of Waikato River health and wellbeing 2010-2019

    Service
    Report: Trends analysis for selected indicators of Waikato River health and wellbeing 2010-2019
  • Check Clean Dry actions

    The Check Clean Dry Campaign aims to stop the spread of freshwater pests by encouraging people going through more than one waterway to check, clean and dry their gear in between.
  • Record warmth so far this winter

    Media release
    New Zealand has just experienced its warmest June and July since records began in 1909 and – with one month to go - is on track for its second successive warmest winter on record.