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, ...

The development of updated national climate projections for Aotearoa New Zealand was completed in mid 2024. The data is available from the Ministry for the Environment (MfE) here. In the coming months ...

Benthic macroinvertebrates are small animals living among stones, logs, sediments and aquatic plants on the bottom of streams, rivers and lakes. Periphyton is algae that attaches or clings to plants ...

There are two methods to determine visual clarity in SHMAK; the clarity tube (or SHMAK tube) and the black disc method.

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, 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 ...

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 ...

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).

April joins NIWA from The Museum of New Zealand, Te Papa Tongarewa as Pou Tikanga for the Iwi in Residence Exhibition – “Ko Rongowhakaata”, where she was responsible for Tikanga Māori protocols, ...