Atmospheric analysis

Grey mullet have a worldwide distribution and Aotearoa is at the southern limit of their range.

The climate of the Manawatu-Wanganui region is a reflection of the generally disturbed westerly air flow with interspersed anticyclones, modified in specific places by the local topography.

How may the activities of the mining industry influence water resources?

Hydro-electricity is a renewable energy source that relies on the inflow of water into storage lakes upstream of a dam.

Write a report, with guided questions, to answer the question: “How cold is the Antarctic?”

A handful of species we work on

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.

In this blog series, we feature a new critter from our expansive invertebrate collection including pictures of specimens in their unique habitat. The blogs also feature news, links and fun facts that showcase New Zealand’s fascinating marine fauna.

In this climate education resource, you can download this climate summary in a range of formats.

Blooms of hazardous cyanobacteria (blue-green algae) in rivers, lakes and reservoirs can cause problems for both animal and human health. How can you find out whether an algal bloom is potentially toxic?

This calculator estimates the solar energy that can be collected by a solar capture device (solar panel) at a given address, panel direction and roof slope.