Atmospheric analysis

Diverting water changes a waterways natural flow

New Zealand's first eel farm was established in 1971. Despite other farms opening in later years, no eel farms remained by the start of the 1980s.

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

Learn about different kinds of beachs and how they form, with diagrams and examples of each type.

Some commonly-asked questions about tornadoes in New Zealand.

View data that show reported target catch and estimated bycatch.

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.

Inanga are the predominant species in the modern whitebait fishery.

NIWA is doing a nationwide study to discover what makes the best riparian projects. Help us give you the knowledge to make the best riparian management decisions possible by taking our 5 minute survey.

The scientific records of palaeotsunamis to have affected New Zealand shores can now be accessed in a new one-stop information shop.

An interactive guide to the intertidal sponges of New Zealand.

NIWA scientists have written a guide for managing mangroves, prompted by a desire for people to learn more about mangrove ecosystems, and what happens when they are removed.