The climate of Otago is perhaps the most diverse of any region in New Zealand.

Reports produced by NIWA’s air quality research.

Common questions about clouds, how they are formed and how they behave.

Longfin eels are the largest and longest-lived fish in New Zealand's freshwaters, and where they are present they are the top predator.

Atmospheric carbon dioxide (CO2) is measured continuously at Baring Head, providing the longest running record of this type in the Southern hemisphere.

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

NIWA maintains the national climate database for New Zealand, and can supply data in a variety of ways.

The Intergovernmental Panel on Climate Change (IPCC) is charged with assessing the most up to date scientific, technical and socio-economic research on climate change.

How may agricultural activities increase sediments in waterways?

The 2012-2013 drought affected the entire North Island plus the west coast of the South Island.

We have prepared a breakdown of the different guidelines that are available for sampling freshwater fisheries. The overview provides links to key documents that explain what should be considered when designing fish monitoring studies and how to implement the various sampling techniques.