Several apps that provide forecasts of the UV index (UVI) are available for smartphones. 

CFCs have damaged the ozone layer and led to higher UV levels and increased health risks. Our role is to understand the causes and effects of ozone depletion, to inform the public of the risk.

Diverting water away from its natural channel for commercial or private use.

How does urbanisation increase sediments in waterways?

We provide an overview of New Zealand climate data for use in school projects.

These gather top-quality data and are used throughout New Zealand in the National Climate Network.

If you're collecting sea shells at the beach this summer and wondering what they are, NIWA is here to help.

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.

The New Zealand Palaeotsunami Database (Database) brings together all known information about tsunamis that occurred prior to written records.

Inanga are the predominant species in the modern whitebait fishery.

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