Atmospheric analysis

In the North Island, moderate rainfall amounts of generally 25-50 mm occurred across much of Northland and Auckland during the past week, with generally 15-30 mm for much of the western North Island and the western Wellington Region. Conversely, the east coast (including Wairarapa) saw generally light rainfall amounts.

A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent.

Once a year, technicians from NIWA’s North Island Field Team don helmets and head lamps to check a network of CO2 sensors in the world-renowned Waitomo Caves. The sensors help make sure that heavy breathing visitors aren’t wrecking the caves’ precious natural structures and microclimate.

A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent.

An interactive guide to the sea slugs of New Zealand.

Aquaculture scientist Dr Alvin Setiawan talks about NIWA's Northland Marine Research Centre.

Dr Alvin Setiawan talks about recirculating aquaculture systems.

Sea spiders look similar to land spiders, but they are in their own special group.

A global survey involving 123 scientists from 58 nations raises concerns about the global status of reef sharks.

A six metre-long autonomous trimaran fitted out with a NIWA echosounder is being used as part of an innovative research collaboration.

Richard O'Driscoll is principal scientist and the program leader for stock assessment and monitoring.