Atmospheric analysis

Greenhouse gases are atmospheric gases that intercept long-wave (mainly infrared) radiation emitted from the Earth's surface.

As much of this climate zone is sheltered by high country to the west, south and in some areas to the east, it is the sunniest region of New Zealand.

NIWA collects wave data, develops and verifies wave forecasting systems, and is developing and producing wave projections.

El Niño accounts for less than 25 percent of the year-to year variance in seasonal rainfall and temperature at most locations in New Zealand.

Find out how you can have access to Earth Science NZ's research vessels to carry out marine research voyages.

NIWA operates about 30 other Maritime New Zealand-certified vessels based at Bream Bay, Auckland, Hamilton, Rotorua, Turangi, Wellington, Nelson, Greymouth, Tekapo, Christchurch, and Dunedin.

How do hydro-electricity activities potentially influence waterway temperatures?

What are the potential sources of chemical contaminants in wastewaters?

The River Environment Classification (REC) is a database of catchment spatial attributes, summarised for every segment in New Zealand's network of rivers.

What are the potential sources of sediments from land use activities?

This Statement of Corporate Intent (SCI) sets out NIWA's strategy for delivering against its core purpose over the next five years.

Tuna is a generic Māori word for freshwater eels. The word will be used interchangeably in this resource.