Atmospheric analysis

NIWA's goal is to provide the science to help New Zealanders transition to a sustainable future.

Smelt have a distinctly forked tail and a strong cucumber smell.

Find out more about our water quality tools.

Damming water for urban use, hydro-electric power generation, irrigation, and other industrial and commercial uses.

Follow NIWA's scientists as they explore the natural world, make new discoveries and share how people use their science.

Waikato exhibits a range of climates due to the variety of landscapes in the region.

Understanding climate and climate change.

NIWA's Hydro Web Portal provides river flow and water quality monitoring data from NIWA’s Benchmark river monitoring network.

Maps of average annual rainfall, temperature and other climate variables have been produced for all of New Zealand, based on the period 1981–2010.

Some simple steps to minimise the effects of wastewater on water quality and mahinga kai.

Find out more about working at NIWA