research project

Future extreme weather in Aotearoa

Extreme weather is the sharp end of climate change. Aotearoa New Zealand is highly vulnerable to the impacts of extreme weather like heavy rainfall and flooding. Homeowners, the government and insurers are just some of those eager to know what the future holds in store. With this public participation project ‘[email protected]’, you can help them... Read more »...

research project

Marine heatwaves and the link with climate extremes

Ocean heat content changes around New Zealand: a link to climate extremes In recent summers, New Zealanders have experienced a series of marine heat waves. Temperatures in some regions have exceeded 6°C above average. While some of us enjoy the warmer water temperatures for water sports and holiday activities, most marine organisms experience heat stress,... Read more »...

research project

Warming in the Tasman Sea

The Tasman Box: filling and warming up The temperature of the Tasman Sea has a strong influence on New Zealand’s climate system. The increasing heat content of the Tasman since the 1990s has resulted in significant sea-level rise, due to thermal expansion of seawater. Marine heat waves are becoming increasingly frequent, and they too have... Read more »...

research project

Simulating New Zealand’s changing climate

Establishing a New Zealand earth system modelling capability A project which sits at the heart of the Deep South Challenge is the construction of the NZ Earth System Model (NZESM). The NZESM is a kind of crystal ball – a mathematical model of the earth’s natural systems so intricate it can predict the effects of... Read more »...

research project

Melting ice in the NZESM

Freshwater from icebergs and ice shelf melt in the NZESM While the reduction of Arctic sea ice is alarming researchers worldwide, Antarctic sea ice extent has actually been increasing over the past 30 years. Changes in Antarctic sea ice can have a huge effect on weather patterns over New Zealand, causing varying wind patterns that... Read more »...

research project

National flood risks & climate change

Emergent exposure of flood inundation hazards under future climate change in New Zealand Floods are some of New Zealand’s most frequent, most damaging and most disruptive natural hazards. As our climate changes, flooding caused by both increased rainfall and rising sea levels – in coastal areas and on floodplains – is expected to increase. As... Read more »...

research project

Climate impacts on the national water cycle

National hydrological and water resource impacts of climate change This century, climate change will alter New Zealand’s natural water cycle significantly. It will change how much rain and snow we receive, and at what time of year. It will change how much water is stored in the soil, snow, glaciers and aquifers. It will change... Read more »...

research project

Stormwater, wastewater and climate change

Impacts on our economy, environment, culture and society We don’t yet know how climate change will impact our critical stormwater and wastewater infrastructure. We also don’t know the extent to which climate change-induced damage to this infrastructure might directly, or indirectly, impact our economy, environment, culture and society. This project, now complete, explored these potential... Read more »...

research project

Snow, ice and glaciers in our changing climate

The impact of climate change on New Zealand’s frozen water resources New Zealand is projected to warm by 1-4°C during the 21st century. This warming will melt our frozen water resources – our snow, ice and glaciers. However, the scale, area and timing of changes to our meltwater are unclear. Mountain rivers in both the... Read more »...

research project

Forecasting weather and climate extremes

Over the centuries, Māori have developed extensive knowledge about local weather and climate conditions. These learnings have formed the bases of traditional and modern practices of agriculture, fishing, medicine, education and kaitiakitanga. Our project has worked closely with Ngāi Tahu knowledge holders to identify and revitalise the use of environmental indicators to forecast weather and climate... Read more »...