Damming water for urban use, hydro-electric power generation, irrigation, and other industrial and commercial uses.

Casal2 is an advanced software package developed by NIWA for modelling the population dynamics of marine species.

Developing probabilistic scenarios of expected future regional climate changes.

Shellfish gathering and farming take place in marine and freshwater environments.

River floods occur when water spills from a river channel onto land that is normally dry, and are one of New Zealand's costliest natural hazards.

Rural, urban, and suburban wastewater treatment methods.

An estuary is a partially enclosed body of water formed where freshwater from the land meets and mixes with saltwater from the ocean.

The main characteristic of the Marlborough climate is its dryness. Summer droughts are frequent, and the region is often swept by warm, dry northwesterlies.

Pauanui South Cam-era station

NIWA is doing a nationwide study to discover what makes the best riparian projects. Help us give you the knowledge to make the best riparian management decisions possible by taking our 5 minute survey.

The scientific records of palaeotsunamis to have affected New Zealand shores can now be accessed in a new one-stop information shop.