Atmospheric analysis

In order to compile accurate water quality models, you need data that draws on comprehensive information about water quality.

Glass eels are juvenile forms of eel that begin life in the ocean trenches of the Pacific and migrate hundreds of kilometres to New Zealand.

Reasonable mixing is the amount of pollutant that can be discharged into a mixing zone.

A mixing zone is a designated area of a stream or river into which wastewater is permitted to empty.

This information is provided as part of our UV Ozone service, which also includes ozone and UV maps for New Zealand, yesterday’s forecast and measured UV, UV Atlas software, and more. NIWA has also developed an instrument to measure UV levels and display the UV Index on an easy-to-read dial. This is intended for use at swimming pools, outdoor sports events, and so on. The measured UV Index can be affected by cloud cover at Lauder.

How do land use activities potentially influence water flows?

What are the potential causes of riparian vegetation loss from land use activities?

What are the potential sources of infectious substances from land use activities?

The latent heat flux and evaporation from lakes are predicted to increase in a warming climate. This model script (written in Matlab) estimates latent and sensible heat fluxes from lake water surfaces.

What are the potential impacts of mining activities on riparian vegetation around waterways?

Building a publicly-available database from the results of a marine mapping survey of the Bay of Islands provides us with a stocktake of the local aquatic resource, in turn giving us valuable information on what areas we can better manage for the future.