Atmospheric analysis

NIWA discusses, in depth, this year's most asked question—what is happening to our fresh waterways?

Accurate reporting on the amount of fish and invertebrates that are caught and discarded by New Zealand’s commercial fishing industry is vital to effective management of these fisheries.

Once in freshwater, glass eels develop into darker pigmented juvenile eels known as elvers.

A carbon neutral activity is one that has a carbon footprint of zero.

Floods are not unusual in New Zealand, but those that hit us early this winter broke records. Why did they occur? Should we expect more? Can we predict future floods?

Water clarity or turbidity is the cloudiness or haziness in a fluid caused by individual small particles (suspended solids).

Impacts of hydro-electric activities on water quality and mahinga kai.

A summary of up-coming tropical cyclone seasons, issued 6-monthly.

The atmosphere is comprised of layers based on temperature. These layers are the troposphere, stratosphere, mesosphere and thermosphere.

A participatory project empowering communities with self-help tools to improve water, sanitation and hygiene.

Tairua station