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

We have an exciting range of career opportunities at NIWA in both the scientific and professional support areas.

NIWA has recently created synthetic, multi-year, 10-minute wind datasets at 15 wind farm sites across New Zealand. These will be used by the Electricity Commission to model the impact of wind farms on the national grid.

Dry stock farming consists predominantly of pasture grazing beef cattle, sheep, and deer for meat, wool, and velvet production.

This daily image of New Zealand from space was created using data from one of NASA's EOS satellites, collected at our receiving station in Lauder, Central Otago.

Check out UV index forecasts for locations in New Zealand (including ski fields), Australia, the Pacific and Antarctica.

Management of stream riparian areas - including vegetation and stock access - influences the health of streams and downstream water bodies.

There are many lines of evidence showing that NZ has warmed during the past century.

Grey mullet have a worldwide distribution and Aotearoa is at the southern limit of their range.

Nutrients in waterways are essential for the growth of algae and aquatic plants but too much can destroy an ecosystem.