NIWA has been awarded $10.2m to eradicate an invasive clam that was only recently discovered in New Zealand waters. The freshwater gold clam, or Corbicula fluminea, is native to eastern and southeast ...

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 ...

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 ...

Please choose in which format you would like to download the dataset, below.

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 ...

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 ...

We can supply a wide range of weather or climate monitoring instruments from single parameter sensors to fully equipped and installed climate stations. NIWA operates over a hundred Electronic Weather ...

Mary-Anne joined NIWA in March 2008. She has a PhD in psychology and is a registered psychologist, specialising in industrial/organisational psychology. Before joining NIWA, Mary-Anne worked as a ...

Rainfall and temperature tercile tables for several locations in the West and South of the South Island. Data are based on the 30-year period 1971-2000. The ranges for each tercile are: below normal = ...

Rainfall and temperature tercile tables for several locations in the North of the North Island. Data are based on the 30-year period 1971-2000. The ranges for each tercile are: below normal = second ...

NIWA's state of the art Stable Isotope Mass Spectrometry (IRMS) facility supports our research and commercial analyses, providing tailor-made solutions for various environmental and atmospheric ...

This is the standard precision instrument NIWA uses throughout New Zealand in the National Climate Network, and elsewhere, for rainfall measurement. This tipping bucket raingauge provides a single ...