A regional climatology is a summary of the typical weather and climate of a region, based on historical data observations made at climate stations located within the region.

NIWA makes available and regularly updates results from several greenhouse gas measurement projects.

Atlantis is a 3D, spatially-explicit, trophodynamic ecosystem model that integrates biology, physics, chemistry and human impacts to provide a synoptic view of marine ecosystem function.

Dataset available for download

Some simple steps to minimise the effects of aquaculture activities on water quality and mahinga kai.

Floods are not unusual in New Zealand, but those that hit us early this winter broke records. Why did they occur? Should we expect more? Can we predict future floods?

NIWA has developed a powerful software tool for the analysis of water quality data.

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

This is a sub-tropical climate zone, with warm humid summers and mild winters.

Currently, the most reliable method to estimate the age of tuna is by examination of their otoliths or "ear bones"