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

Sea surface temperature's role in the Atlantis model

Sea surface temperature is one of the dynamic forcing elements included in an Atlantis model. This animation shows outputs from a ROMS (Regional Oceanographic Modelling System) model developed by Mark Hadfield (NIWA), overlaid on our map (by CATO). Temperatures range from hot red at 23o C to cool blue at 8o C.