Home Freshwater Stopping the gold clam: it's now or never Understanding clam impacts Using artificial samplers to test the presence and settlement of juvenile gold clams Juvenile gold clams (Corbicula ...

The website Ian Wishart has based his opinions on is not New Zealand’s national climate database. Wishart has conflated the Historic Weather Events website with the New Zealand National Climate ...

A New Zealand-led team has completed the fullest investigation to date into January’s eruption of the underwater Tongan volcano. Hunga-Tonga Hunga-Ha'apai (HT-HH) emitted the biggest atmospheric ...

Forecasting sea surface temperatures several months in advance is challenging. To give us insights into what might happen around Aotearoa New Zealand in the months to come, NIWA scientists have ...

Forecasting sea surface temperatures several months in advance is challenging. To give us insights into what might happen around Aotearoa New Zealand in the months to come, NIWA scientists have ...

A new study has comprehensively mapped the immediate after effects of the January 2022 eruption of Hunga Tonga - Hunga Ha’apai, highlighting the risks of similar events. The study, published in Nature ...

The table below shows the probabilities (or percent chances) for each of three categories: above average, near average, and below average. In the absence of any forecast guidance there would be an ...

A blob of smoke from the Australian bushfires is continuing to circle the globe almost four months after it formed. Scientists around the world have been tracking the blob since it formed in December ...

Disclaimer: The forecasts offered in this page draw upon modified Copernicus Climate Change Service Information [2022] (C3S, https://climate.Copernicus.eu). There is inherent uncertainty in ...

NIWA's Crispin Middleton is part of the team monitoring the caulerpa infestation. Photo: Irene Middleton, NIWA. NIWA is part of a multi-agency biosecurity response to an invasive seaweed discovered at ...

Temperature 2024 was New Zealand’s 10th-warmest year on record, based on NIWA’s seven station series which begins in 1909. Annual temperatures were above average (0.51-1.20°C above the annual average) ...

Stories of tremendous forest fires, huge storm events, and suffocating heatwaves have dominated headlines over the past few years. We instinctively feel that our weather is getting wilder. Are we ...