Atmospheric analysis

Tuna, or freshwater eels, are the most widespread freshwater fish in New Zealand. This 'living' educational resource summarises a large amount of scientific and technical literature.

How do hydro-electricity activities potentially influence waterway temperatures?

A list of some of the questions we get asked most frequently. If you don't see your question answered here, please get in touch.

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

Farmers are making business decisions everyday which are influenced by environmental factors. We can help farmers to improve decision-making, mitigate farm environment risk, and to become more productive, efficient, competitive and sustainable.

 

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.

New Zealand has just experienced its warmest winter on record, according to official NIWA climate data.