Digital copies of all our annual reports published since 2011.

Your task is to create a model of the data to predict the times during the year that a location would be pleasant to visit

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.

There are several definitions of drought, depending upon whether it is viewed as a hazard or a risk.

New Zealand has just experienced its warmest winter on record, according to official NIWA climate data.

Has a receding lower jaw and black spots behind the head.

Smelt have a distinctly forked tail and a strong cucumber smell.

Damming water for urban use, hydro-electric power generation, irrigation, and other industrial and commercial uses.

NIWA's goal is to provide the science to help New Zealanders transition to a sustainable future.

Find out more about our water quality tools.

Follow NIWA's scientists as they explore the natural world, make new discoveries and share how people use their science.