The majority of New Zealanders are able to recall a story about catching eels when they were children.

The world’s oceans are acidifying as a result of the carbon dioxide (CO2) generated by humanity.

More information about our online freshwater databases.

Impacts of mining on water quality and mahinga kai.

NIWA has working relationships with hundreds of organisations in New Zealand and overseas.

These datasets are available in a range of formats.

Understanding what happens above and below ground during a flooding event, and how it is different from normal rainfall conditions

Understanding how hazards impact people and the environment provides the foundation for informed decision making for a resilient Pacific.

Like the GMS satellite, the NOAA Series of polar orbiting satellites (operated by NOAA, the US National Oceanic and Atmospheric Administration) are a component of the World Weather Watch meteorological satellite network.

Our southwest Pacific research focuses on recent and historic climate and weather activity, including our involvement in ACRE Pacific data rescue.

Because of its exposure to disturbed weather systems from the Tasman Sea, this climate zone is often quite windy, but has few climate extremes.

NIWA’s climate scientists can now confirm what you may have suspected. After carefully poring through more than a century’s worth of data, it has been officially determined that winter 2022 was Aotearoa New Zealand’s warmest and wettest on record.