Atmospheric analysis

Currently, the most reliable method to estimate the age of tuna is by examination of their otoliths or "ear bones"

Methane (CH4) is the second most important greenhouse gas after CO2 that is produced by human activities.

NIWA has developed a powerful software tool for the analysis of water quality data.

How do nutrients from wastewater treatment enter waterways?

Scott Base, Antarctica Antarctica is the coldest, windiest and driest continent.

The Standardised Precipitation Index (SPI) is a simple measure of drought (and also of very wet conditions) and is based solely on the accumulated precipitation for a given time period.

A handful of species we work on

Water take (also known as water abstraction) has a range of valuable public and private uses.

When fresh water meets salty water - a classroom exercise that explores the physics of estuaries.

Tornadoes, like the one that hit Auckland's western suburbs today, are relatively rare events in New Zealand.