Atmospheric analysis

NIWA has transformed 1.5 million square kilometres of data into the most accurate and detailed map yet of the land underneath the sea around New Zealand.

If you're moving to join us here at NIWA, we want to say thanks for choosing us by helping you with your big move.

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.

One of the major consequences of climate change is rising global sea levels.

Learn about different kinds of beachs and how they form, with diagrams and examples of each type.

Some commonly-asked questions about tornadoes in New Zealand.

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.