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.

  • Lesson four: Air quality and weather

    Education Resource
    Air quality is affected by the weather and the shape of the land. This lesson explores why air quality differs in different parts of NZ.
  • Lesson three: Measuring particles in the air

    Education Resource
    This lesson explores how air quality is measured all around Aotearoa New Zealand and where you can access that data.
  • Lesson two: The air in our lungs

    Education Resource
    Small air pollution particles can get into our lungs and even our bloodstream. This lesson explores what happens to the air we breathe in.
  • Diquat use for submerged weeds

    Diquat is a herbicide (chemical) that has been used in New Zealand for many decades for submerged (underwater) weed control and also on agricultural crops. It is registered for freshwater use in New Zealand.
  • Message in a bottle: Dr Jenny Visser

    This is now my eighth voyage to Antarctica on Tangaroa. While my medical skills have been called on many occasions, my daily consultation rate at sea is low. So, I fill my time with other activities including getting involved in the science if needed.
  • RV Tangaroa spots first iceberg

    At midnight on Saturday, the crew on-board RV Tangaroa spotted the first iceberg of the voyage.
  • How does a fish climb a ramp? Very, very cleverly…

    Feature story
    New Zealand’s native fish are doing their best to climb up ramps in a NIWA laboratory so scientists can learn how to better help them navigate our tricky waterways.
  • Hotspot Watch 15 January 2021

    Hotspot
    A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent. Regions experiencing significant soil moisture deficits are deemed “hotspots”. Persistent hotspot regions have the potential to develop into drought.
  • Science update 1 from Richard O’Driscoll, Voyage Leader

    We have officially entered Antarctic waters! Five days after leaving Wellington on the Ross Sea Life in a Changing Climate (ReLiCC) 2021 voyage.
  • Voyage update 1 from Evan Solly, Ice Pilot

    Ice Pilot Evan Solly gives an update from the first week on-board NIWA's research vessel Tangaroa as they embark on a six-week voyage to Antarctica.
  • NIWA drones going where people can’t on the West Coast

    Feature story
    A team of scientists have been exploring some of New Zealand’s most remote and rugged coastal zones.
  • Hotspot Watch 8 January 2021

    Hotspot
    A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent. Regions experiencing significant soil moisture deficits are deemed “hotspots”. Persistent hotspot regions have the potential to develop into drought.