Atmospheric analysis

The climate of Otago is perhaps the most diverse of any region in New Zealand.

NIWA has transformed 1.5 million square kilometres of data into the most accurate and detailed map yet of the land underneath the sea around New Zealand.

Sea surface temperatures in the southern Tasman Sea rose to exceptionally high levels in late 2017 and early 2018. These temperatures were far above any others previously observed at that time of year in the region, and extended west from New Zealand to Tasmania and mainland southeast Australia.

These datasets are available in a range of formats.

NIWA scientists have made the rare discovery of a days-old ghost shark during a recent survey off the east coast of the South Island.

Learn about different kinds of beachs and how they form, with diagrams and examples of each type.

Sheltered by high country to the west, the eastern zone of the North Island enjoys a dry, sunny climate.

Generally speaking, a drought is defined as a rainfall deficit which restricts or prevents a human activity – for example, farming or power generation.

One of the major consequences of climate change is rising global sea levels.

Dissolved oxygen (DO) is a relative measure of the amount of oxygen (O2) dissolved in water.

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.