Atmospheric analysis

NIWA has working relationships with hundreds of organisations in New Zealand and overseas.

Piharau/kanakana are an important mahinga kai species and a prized delicacy for many Māori.

These datasets are available in a range of formats.

The sex of tuna is not determined genetically, as in some other organisms.

Here are some simple steps to minimise the effects of dairying on water quality and mahinga kai.

As this region is sheltered by high country to the south and east, it has less wind than many other parts of New Zealand.

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.

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.

How do nutrients from wastewater treatment enter waterways?