On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Ash cloud over New Zealand 40 minutes after Mt. Tongariro erupts

Ash cloud over New Zealand 40 minutes after Mt. Tongariro erupts. The colour-scale (predominantly grey-scale) is temperature.
Cold temperatures are bright and warm temperatures are dark. Credit: NOAA 19 satellite and NIWA