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National Institute of Water and Atmospheric Research

NIWA, the National Institute of Water and Atmospheric Research, is a Crown Research Institute established in 1992. It operates as a stand-alone company with its own Board of Directors and Executive.

NIWA’S purpose is to enhance the economic value and sustainable management of New Zealand’s aquatic resources and environments, to provide understanding of climate and the atmosphere and increase resilience to weather and climate hazards to improve safety and wellbeing of New Zealanders.

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Displaying 21 - 29 of 29 articles
This summer, coastal seas to the north and east of New Zealand are even warmer than during last year’s marine heat wave. from www.shutterstock.com

Coastal seas around New Zealand are heading into a marine heatwave, again

Craig Stevens, National Institute of Water and Atmospheric Research and Ben Noll, National Institute of Water and Atmospheric Research

Marine heatwaves may become the new normal for the Tasman Sea and the ocean around New Zealand, and oceanographers are developing models to better predict their intensity.
Small aircraft carry scientists high above the Southern Alps to survey glacier changes. Hamish McCormick/NIWA

A bird’s eye view of New Zealand’s changing glaciers

Andrew Lorrey, National Institute of Water and Atmospheric Research; Andrew Mackintosh, Te Herenga Waka — Victoria University of Wellington, and Brian Anderson, Te Herenga Waka — Victoria University of Wellington

Forty years of continuous end-of-summer snowline monitoring of New Zealand’s glaciers brings the issue of human-induced climate change into tight focus.
The team used hot-water drilling gear to melt a hole through Antarctica’s Ross Ice Shelf to explore the ocean below. Christina Hulbe

Climate scientists explore hidden ocean beneath Antarctica’s largest ice shelf

Craig Stevens, National Institute of Water and Atmospheric Research and Christina Hulbe, University of Otago

An international team has melted a hole through Antarctica’s largest ice shelf to explore the hidden ocean below, and the shelf’s vulnerability to climate change.
The analysis of large amounts of ice from Antarctica’s Taylor Valley has helped scientists to tease apart the natural and human-made sources of the potent greenhouse gas methane. Hinrich Schaefer

Antarctic ice reveals that fossil fuel extraction leaks more methane than thought

Hinrich Schaefer, National Institute of Water and Atmospheric Research

Analysis of 12,000-year-old Antarctic ice reveals that methane leaks from fossil fuel extraction play a larger role than previously thought.
The authors have collaborated on an Antarctic research project, investigating tiny ice crystals and their role in climate. Gabby O'Connor's Studio Antarctica/Johanna Mechem

When artists get involved in research, science benefits

Craig Stevens, National Institute of Water and Atmospheric Research and Gabby O'Connor, University of Auckland, Waipapa Taumata Rau

When artists and scientists get together, they fuel each other’s creativity and inquiry.
A boy plays cricket among smoke in Karachi. Deaths from air pollution across the globe will increase as climate change accelerates. REUTERS/Akhtar Soomro

Climate change set to increase air pollution deaths by hundreds of thousands by 2100

Guang Zeng, National Institute of Water and Atmospheric Research and Jason West, University of North Carolina at Chapel Hill

A new study suggests climate change will cause changes to patterns of ground-level ozone and smog – two deadly pollutants set to increase deaths by about 260,000 worldwide by the end of the century.
Tasman Lake, which is fed by melt water from the retreating Tasman Glacier, photographed in March this year. Trevor Chinn

New Zealand’s Southern Alps have lost a third of their ice

Jim Salinger, University of Auckland, Waipapa Taumata Rau; Blair Fitzharris, University of Otago, and Trevor Chinn, National Institute of Water and Atmospheric Research

A third of the permanent snow and ice of New Zealand’s Southern Alps has now disappeared, according to our new research based on National Institute of Water and Atmospheric Research aerial surveys. Since…
Reduced ozone means increased UV radiation, and that leads to skin cancer. Tracey Lawson

Saving the ozone layer saved human lives

Olaf Morgenstern, National Institute of Water and Atmospheric Research and Peter Braesicke, University of Cambridge

SAVING THE OZONE: Part seven in our series exploring on the Montreal Protocol on Substances that Deplete the Ozone Layer – dubbed “the world’s most successful environmental agreement” – explains how the…

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