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

Sediment loads

Sediment loads for the catchments draining to the southern Tauranga Harbour for the current land use and climate, current climate and 2051 land use, and the 2051 climate and 2051 land use. The current land use is based on the decadal average urbanisation rates.