Atmospheric analysis

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

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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.

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

Tairua station

Dairy farms operate to maximise milk production

How can mining activities influence sediments in waterways?

Climate data and common terms explaining the causes and effects of climate change.

This is the standard precision instrument NIWA uses throughout New Zealand in the National Climate Network, and elsewhere, for rainfall measurement.

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