Atmospheric analysis

The greenhouse effect is a warming of the earth's surface and lower atmosphere caused by substances which let the sun's energy through to the ground but impede the passage of energy from the earth back into space.

The River Environment Classification (REC) is a database of catchment spatial attributes, summarised for every segment in New Zealand's network of rivers.

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

Tuna is a generic Māori word for freshwater eels. The word will be used interchangeably in this resource.

Biogas from pig farms

NIWA makes available and regularly updates results from several greenhouse gas measurement projects.

If you're moving to join us here at NIWA, we want to say thanks for choosing us by helping you with your big move.

You can download these summaries in a range of formats.

One of the major consequences of climate change is rising global sea levels.

Annual Climate Summaries from 2000 to present.

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