Atmospheric analysis

View a collection of maps showing the impact of past El Niño and La Niña events.

Temperature affects the number and type of animals and plants that live in a waterway.

Floods are not unusual in New Zealand, but those that hit us early this winter broke records. Why did they occur? Should we expect more? Can we predict future floods?

How can we help you?

Dissolved oxygen (DO) is a relative measure of the amount of oxygen (O2) dissolved in water.

There are several ways to tell the three New Zealand eel species apart.

This lesson will explore the use of Māori environmental indicators [tohu] to anticipate local weather and climate conditions.

An overview of Science at NIWA

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.