Atmospheric analysis

There are two species of kōura or freshwater crayfish in Aotearoa.

Rig shark is an important inshore commercial fish species in New Zealand, and we need to understand more about their habitats, movements, nursery grounds and vulnerability to human impacts to ensure they are managed sustainably and their productivity is enhanced.

These datasets are available in a range of formats.

Greenhouse gases are atmospheric gases that intercept long-wave (mainly infrared) radiation emitted from the Earth's surface.

Sometimes wind can feel like a bit of a mystery because we can feel it, but not see it.

The Standardised Precipitation Index (SPI) is a simple measure of drought (and also of very wet conditions) and is based solely on the accumulated precipitation for a given time period.

If you list all the historic rainfall totals for a particular month and for a specific location, rank these from lowest to highest, then divide the list into ten equal parts, you have identified the ten rainfall deciles for that month and for that location.

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

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

The all-sky image shows a hemispheric view of the sky at Lauder.

Temperature affects the number and type of animals and plants that live in a waterway.