Atmospheric analysis

Returning water to our waterways after we’ve used it in our homes, on farms and in industry is a complex and challenging process.

This identification guide covers the common crustose coralline algae found in central New Zealand.

The climate of Otago is perhaps the most diverse of any region in New Zealand.

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Dissolved oxygen (DO) is a relative measure of the amount of oxygen (O2) dissolved in water.

Longfin eels are the largest and longest-lived fish in New Zealand's freshwaters, and where they are present they are the top predator.

Atmospheric carbon dioxide (CO2) is measured continuously at Baring Head, providing the longest running record of this type in the Southern hemisphere.

NIWA has recently created synthetic, multi-year, 10-minute wind datasets at 15 wind farm sites across New Zealand. These will be used by the Electricity Commission to model the impact of wind farms on the national grid.

Dry stock farming consists predominantly of pasture grazing beef cattle, sheep, and deer for meat, wool, and velvet production.

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