Atmospheric analysis

These datasets are available in a range of formats.

Developing probabilistic scenarios of expected future regional climate changes.

Confused about El Niño, or can't tell the difference between an Anticyclone and an Isobar? Let us help.

Temperature trends from 1930s to present day

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

NIWA collects and manages significant amounts of New Zealand's environmental data, particularly in the climate, freshwater, marine and atmosphere domains.

Urbanisation has changed the face of many waterways that flow through urban areas

Scott Base, Antarctica Antarctica is the coldest, windiest and driest continent.

NIWA offers a range of standard toxicity tests for both freshwater and marine environments.

Explore our education and information section to find out about climate and climate change, weather, our atmosphere, estuaries and more.

Here is our complete range of products.