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 ...

Anyone can use the tool and provide data by using the survey available in the NIWA Citizen Science app. The survey/app provides a standardized way to record data on the characteristics of instream ...

A new NIWA-led study has found that climate change increased the amount of total rainfall during Cyclone Gabrielle by 10%. This additional rain fell during the most intense parts of the storm, ...

How healthy is your stream? SHMAK - the New Zealand Stream Health Monitoring and Assessment Kit - has been designed to help you find out. NIWA’s Stream Health Monitoring Assessment Kit (SHMAK) gives ...

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

Subject to the User’s compliance with the terms of this Agreement and in consideration of the Charges, NIWA grants the User a non-exclusive, non-transferable licence to use the Data only for the ...

Subject to the User’s compliance with the terms of this Agreement, NIWA grants the User a non-exclusive, non-transferable licence to use the Data only for the Permitted Use during the Term as set out ...

Probabilities are assigned in three categories: above average, near average, and below average. Temperatures are about equally likely to be above average (50% chance) or near average (45% chance).

Clive is an aquatic ecologist with more than 35 years of experience, specialising in freshwater and estuarine water quality and aquatic ecosystem processes. His expertise results from research in a ...

NIWA’s new research vessel, Kaharoa II, will be in the Hauraki Gulf Marine Park/ Ko te Pataka kai o Tīkapa Moana Te Moananui-ā-Toi over the next three weeks, filming underwater habitats. Kaharoa II ...

The Barrier Assessment and Reporting Tool (BART) has been created to help river managers and asset owners understand connectivity in different catchments, and prioritise barriers within catchments for ...

There are just over 50 freshwater fish species native to New Zealand. Three-quarters of these are classified as at risk or threatened with extinction. Many of our iconic native fishes, such as eels ...