Atmospheric analysis

River floods occur when water spills from a river channel onto land that is normally dry, and are one of New Zealand's costliest natural hazards.

Our southwest Pacific research focuses on recent and historic climate and weather activity, including our involvement in ACRE Pacific data rescue.

These datasets are available in a range of formats.

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

The topography of the North Island has a profound effect on the weather of the Bay of Plenty region.

The New Zealand Drought Monitor is a system for keeping track of drought conditions across New Zealand based on a standardised climate index.

Dog Island levels

NIWA develops and supplies custom software for environmental analysis and modelling.

Here are some simple steps to minimise the effects of dairying on water quality and mahinga kai.

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.