Atmospheric analysis

NIWA's High Intensity Rainfall Design System (HIRDS) offers planners and engineers more certainty about the frequency of high-intensity rainfall events, enabling them to better design stormwater drainage, flood defence systems and other vital structures.

NIWA's seafood sector work comprises our fish, fisheries and aquaculture research and consultancy.

This weekly update helps assess likelihood of extremely dry weather preceding a drought. Regions experiencing severely to extremely drier than normal soil conditions are deemed “hotspots”

Within a range of meaningful contexts students will be able to make statements about implications and possible actions consistent with the results of a statistical investigation and to find and authenticate data measures such as mean, median, mode, inter-quartile range, and range.

Find out more about submerged aquatic plant species.

New Zealand’s coast is sculpted by ocean waves. Some wave conditions bring joy to surfers and beachgoers, but, at other times, waves can cause major hazards at sea or along the shore.

The all-sky image shows a hemispheric view of the sky at Lauder.

The climate of Otago is perhaps the most diverse of any region in New Zealand.

If you're collecting sea shells at the beach this summer and wondering what they are, NIWA is here to help.

An overview of Science at NIWA

Where and when do white sharks occur in New Zealand waters, and how can fisheries bycatch be reduced?