Atmospheric analysis

How may forestry activities increase sediments in waterways?

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All transmissions from GMS-5 are no longer received at NIWA’s satellite reception station in Wellington. We are working on an alternative data feed and will be able to bring back these images later this year. Once we start receiving data again, it will then be calibrated, re-mapped onto standard map projections, and archived.

There are several definitions of drought, depending upon whether it is viewed as a hazard or a risk.

A high proportion of New Zealand’s native freshwater fish fauna need to migrate to and from the sea.

Digital copies of all our annual reports published since 2011.

The New Zealand Palaeotsunami Database (Database) brings together all known information about tsunamis that occurred prior to written records.

To prepare for changes in climate, our freshwater and oceans decision-makers need information on species vulnerability to climate change.

There are several ways to tell the three New Zealand eel species apart.

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.

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.

Tuna or freshwater eels are a very significant, widely-valued, heavily-exploited, culturally iconic mahinga kai resource.