Atmospheric analysis

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NIWA's educational resources and scientific data are tools for young people to learn about science.

This system combines daily sea-level data from NIWA, regional councils, port companies, Antarctica NZ, Bureau of Meteorology and territorial authorities.

Blooms of hazardous cyanobacteria (blue-green algae) in rivers, lakes and reservoirs can cause problems for both animal and human health.

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.

Glass eels (about 5.5 to 7.0 cm) arrive in fresh water during spring, especially during September and October, although they may be present from July to December.

New Zealand’s coast is sculpted by ocean waves. Some wave conditions bring joy to surfers and beachgoers, but, at other times, waves can cause major hazards at sea or along the shore.

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

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

This weekly update helps assess likelihood of extremely dry weather preceding a drought.