Atmospheric analysis

A collection of ID guides to algae. Groups include major freshwater algal groups, diatoms and blue-green (cyanobacteria), red and green algae.

Nutrients in waterways are essential for the growth of algae and aquatic plants but too much can destroy an ecosystem.

Impacts of timber processing activities on water quality and mahinga kai.

This is the standard precision instrument NIWA uses throughout New Zealand in the National Climate Network, and elsewhere, for rainfall measurement.

Has a receding lower jaw and black spots behind the head.

Opportunities for students

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

Pauanui North station

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

Maps of average annual rainfall, temperature and other climate variables have been produced for all of New Zealand, based on the period 1981–2010.