Atmospheric analysis

These datasets are available in a range of formats.

The climate of this zone is largely dependent on the lie of the Southern Alps to the west, but many areas are also sheltered by high country to the south and east.

Due to its position in the 'Roaring Forties', a belt of strong winds in the Southern Hemisphere which generally occur between the latitudes of 40 and 49 degrees, as well as its small size, New Zealand is a windy country.

View a collection of maps showing the impact of past El Niño and La Niña events.

Seasonal climate summaries from summer 2001 to the present.

A versatile inshore vessel, RV Ikatere is equipped with high-precision multibeam and sub-bottom profiler transducers for surveying and mapping the seabed.

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

Tuna harvested from Lake Ōmāpere and Utakura River catchment have long comprised an important fishery for tangata whenua.

Tornadoes, like the one that hit Auckland's western suburbs today, are relatively rare events in New Zealand.

Ocean acidification is the name given to the lowering of pH of the oceans as a result of increasing carbon dioxide (CO2) in the atmosphere.