Atmospheric analysis

These datasets are available in a range of formats.

Sheltered by high country to the west, the eastern zone of the North Island enjoys a dry, sunny climate.

West Coast is New Zealand’s wettest region, and this may be attributed to its exposure to the predominant westerly airflow over the country, combined with the orographic effect of the Southern Alps.

Generally speaking, a drought is defined as a rainfall deficit which restricts or prevents a human activity – for example, farming or power generation.

An overview of what the SHMAK kit comprises, and various uses for it.

Tuna are found in all sorts of habitats (places), including coastal estuaries, lakes, wetlands, rivers, mountain streams and even alpine tarns.

At the age of seven, NIWA’s youngest climate scientist, Nava Fedaeff, swapped sub-arctic Siberia for balmy Auckland – and her first job was to learn to swim.

Find out more about submerged aquatic plant species.

Instrument Systems is a specialised technology-focused consulting group within NIWA.

The current method for calculating wind speed-up is inadequate, and can grossly under-predict correct design wind speeds in NZ's complex terrain.

Antarctica is experiencing stunning skyscapes like those recently seen in New Zealand, thanks to the afterglow effect from the Tongan volcano.