Atmospheric analysis

Monthly climate summaries from December 2001 to the present.

A hot and steamy summer saw Kiwis heading down to rivers and lakes to cool off. But they weren’t the only ones enjoying the warmer weather – algae had a great time too.

Short-term to long-term data estimation

What are the sources of chemical contamination from wood processing?

The High Performance Computing Facility (HPCF) is supercharging New Zealand science.

These datasets are available in a range of formats.

A collection of ID guides to algae. Groups include major freshwater algal groups, diatoms and blue-green (cyanobacteria), red and green algae.

The topography of the North Island has a profound effect on the weather of the Bay of Plenty region.

How healthy is your stream? SHMAK - the New Zealand Stream Health Monitoring and Assessment Kit - has been designed to help you find out.

One of the most common species of freshwater fish in Aotearoa is the common bully or toitoi.

NIWA's Hydro Web Portal provides river flow and water quality monitoring data from NIWA’s Benchmark river monitoring network.

What are the impacts of water dams on water quality and mahinga kai?