Atmospheric analysis

When fresh water meets salty water - a classroom exercise that explores the physics of estuaries.

The current method for calculating wind speed-up is inadequate, and can grossly under-predict correct design wind speeds in NZ's complex terrain.

A monthly summary of the climate in the tropical South Pacific islands, with an outlook for the coming months.

Trees are grown and converted into a range of useful timber and paper products.

To prepare for changes in climate, our freshwater and oceans decision-makers need information on species vulnerability to climate change.

The 2012-2013 drought affected the entire North Island plus the west coast of the South Island.

We have prepared a breakdown of the different guidelines that are available for sampling freshwater fisheries. The overview provides links to key documents that explain what should be considered when designing fish monitoring studies and how to implement the various sampling techniques.

An interactive guide to the sponges of New Zealand.

CASAL is an advanced software package developed by NIWA for fish stock assessment.

Commercial eel fishery in New Zealand began in earnest in the 1960s and expanded rapidly until the early 1970s

NIWA's mission is to conduct leading environmental science to enable the sustainable management of natural resources for New Zealand and the planet.