Seen a stunning sunrise or sunset lately? The Tongan volcano may be the cause

Seen a stunning sunrise or sunset lately? The Tongan volcano may be the cause

To understand these sightings, the forecasting team contacted their colleagues at the Lauder Atmospheric Research Station in Central Otago, who confirmed that their ground-based LIDAR (Light Detection and Ranging) instrument has been detecting unusual spikes in aerosols in the stratosphere, at around 20-25 kilometres above New Zealand.

International climate experts gather in Wellington

International climate experts gather in Wellington

“NIWA depends on the Unified Model for its forecasting and predictions of New Zealand’s weather and climate and it will be more critical for us in the future as we adapt to a changing climate.” Dr Dean says the Unified Model provides a platform for collaboration that enables development beyond what would be possible by a single organisation.