Probabilities are assigned in three categories: above average, near average, and below average. Temperatures are very likely to be above average (60% chance). Rainfall totals are about equally likely ...

A new online tool that identifies areas at risk from groundwater flooding has been developed by New Zealand scientists. Groundwater flooding occurs when the water table rises close to the surface, ...

The risk of undersea landslides and their potential to cause tsunamis along New Zealand’s east coast is being investigated by scientists aboard the German research vessel RV Sonne as part of a ...

Freshwater Update 92 brings you the latest information from NIWA's Freshwater Centre.

A team of NIWA freshwater ecologists have completed their research on the use of biodegradable plant mats as life rafts to help reintroduce native aquatic plants to degraded freshwater lakes. The ...

Temperature Temperatures were above average (0.51-1.20°C above average) or well above average (>1.20°C above average) for most regions of the country. Temperatures were near average (±0.50°C of ...

Could bubbles and strobe lights stop pest fish swimming where they’re not wanted? A team of NIWA freshwater scientists is investigating the effectiveness of an acoustic bubble-screen coupled with ...

New Zealand could face twice as many of the most extreme atmospheric rivers by the end of the century, according to new research. Not only could the narrow bands of concentrated water vapour increase, ...

New research by NIWA scientists suggests environmental targets for managing fine sediment in rivers may need to be revised to better account for the impacts of climate change. Currently, attribute ...

The ocean and atmosphere remain in a weak La Niña state, primarily focused on the central Pacific (i.e., La Niña “Modoki”). However, there is a 75% chance that ENSO-neutral conditions will emerge ...

NIWA scientists are on the hunt for valuable water quality and economic data on freshwater mitigation efforts across New Zealand to help improve predictive models they are developing. By incorporating ...