Atmospheric analysis

Water clarity or turbidity is the cloudiness or haziness in a fluid caused by individual small particles (suspended solids).

Impacts of hydro-electric activities on water quality and mahinga kai.

A range of physical and chemical variables are measured in the NRWQN.

Descriptions of the common terms that explain the processes that occur in hydrology.

Māori have an extensive knowledge of the ecology of freshwater eels, and have maintained their customary fisheries for several centuries.

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

Management of stream riparian areas - including vegetation and stock access - influences the health of streams and downstream water bodies.

There are many lines of evidence showing that NZ has warmed during the past century.

Dairy farms operate to maximise milk production

How can mining activities influence sediments in waterways?