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.

Plants and trees along the water margins and banks are called riparian vegetation.

Hydro-electricity is a renewable energy source that relies on the inflow of water into storage lakes upstream of a dam.

These datasets are available in a range of formats.

Tornadoes, like the one that hit Auckland's western suburbs today, are relatively rare events in New Zealand.

Plots of UV levels throughout the day at different locations.

The mass of carbon emissions can easily be calculated.

NIWA makes a range of trace gas data freely available on our FTP site.

Scott Base, Antarctica Antarctica is the coldest, windiest and driest continent.