Atmospheric analysis

Management of stream riparian areas - including vegetation and stock access - influences the health of streams and downstream water bodies.

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.

Several apps that provide forecasts of the UV index (UVI) are available for smartphones. 

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

There are two species of kōura or freshwater crayfish in Aotearoa.

Impacts of mining on water quality and mahinga kai.

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

We have prepared a breakdown of the different guidelines that are available for sampling freshwater fisheries. The overview provides links to key documents that explain what should be considered when designing fish monitoring studies and how to implement the various sampling techniques.

An interactive guide to the sponges of New Zealand.

Information about past climate is obtained from piecing evidence together from various sources.

These datasets are available in a range of formats.

Maps of average annual rainfall, temperature and other climate variables have been produced for all of New Zealand, based on the period 1981–2010.