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.

The atmosphere is comprised of layers based on temperature. These layers are the troposphere, stratosphere, mesosphere and thermosphere.

National climate maps

The process of coming to work with us has five steps: applying, a phone interview, a face to face interview, background checks, and an offer.

Tairua station

Maps of the average first and last dates of soil moisture deficit are shown here.

Dairy farms operate to maximise milk production

How can mining activities influence sediments in waterways?

NIWA is today issuing some scientific information on the parasite Bonamia ostreae, recently discovered in Big Glory Bay, Stewart Island, and the risk it poses to the Bluff oyster fishery.

Climate data and common terms explaining the causes and effects of climate change.