Atmospheric analysis

This is a sub-tropical climate zone, with warm humid summers and mild winters.

Once in freshwater, glass eels develop into darker pigmented juvenile eels known as elvers.

This web camera is available thanks to the support of Waikato Regional Council.

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.

NIWA's educational resources and scientific data are tools for young people to learn about science.

A hot and steamy summer saw Kiwis heading down to rivers and lakes to cool off. But they weren’t the only ones enjoying the warmer weather – algae had a great time too.

Like the GMS satellite, the NOAA Series of polar orbiting satellites (operated by NOAA, the US National Oceanic and Atmospheric Administration) are a component of the World Weather Watch meteorological satellite network.

How may agricultural activities increase sediments in waterways?

There are different types of instrument available for measuring water level.

If you list all the historic rainfall totals for a particular month and for a specific location, rank these from lowest to highest, then divide the list into ten equal parts, you have identified the ten rainfall deciles for that month and for that location.

Annual Climate Summaries from 2000 to present.