Atmospheric analysis

There are two methods to determine visual clarity in SHMAK; the clarity tube (or SHMAK tube) and the black disc method.

Technical information about our datasets and methodology along with related resources.

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

The River Environment Classification (REC) is a database of catchment spatial attributes, summarised for every segment in New Zealand's network of rivers.

Find out more about emergent aquatic plants.

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

The Statement of Core Purpose spells out why the Government owns Crown Research Institutes and what it expects from them.

Find out more about working at NIWA

The all-sky image shows a hemispheric view of the sky at Lauder.

Al Brown is an award-winning chef, co-owner of Wellington’s Logan Brown restaurant, television presenter on Hunger for the Wild, writer, and fisherman.

Compound specific stable isotope analysis techniques are an increasingly useful tool to address many ecological and environmental research questions.