Atmospheric analysis

NIWA's work seeks to improve our understanding of the key dynamic and physical processes which are responsible for heavy rainfall , and to improve the heavy rainfall forecast.

A problem with recruitment is usually indicated by the absence, or very low density, of fish where they would normally be present.

Fish species thrive in a variety of different habitats.

Many New Zealand lakes are suffering from nutrient enrichment, causing potentially toxic blooms of blue-green algae. NIWA is testing a range of methods to manage phosphorus release from lake sediments – including sediment-capping agents.