Atmospheric analysis

NIWA run a computer model which simulates wave heights across the Canterbury continental shelf and along the coast.

Up-to-date drought indicator maps are shown here.

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.

Wastewater treatment is the separation and extraction of solid waste from liquid waste, and the removal of nutrients and pathogens.

What are the potential sources of chemical contamination from aquaculture activities?

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

The UV Index is a measure of the intensity of UV radiation. The larger the number, the more intense the UV. In New Zealand, its maximum summer value is generally about 12, but it can exceed 13 in the far North. In winter it reaches peak values of 1 or 2. Values of 10 or more should be considered as "extreme". At high altitude tropical sites (eg Mauna Loa Observatory, Hawaii), the UV Index can exceed 20.The UV Index supersedes the idea of "Time to Burn" or "Burn Time", which has been used previously in New Zealand.

Coastal risk exposure for New Zealand, adaptation guidance for local government and relevant summaries of previous court cases and Building Act 2004 determinations.

The atmosphere is comprised of layers based on temperature. These layers are the troposphere, stratosphere, mesosphere and thermosphere.

Useful information and resources on New Zealand's marine flora and invertebrate fauna.

The land used to produce crops is usually flat to gently rolling so it can be tilled, sowed, and harvested.