The New Zealand Palaeotsunami Database (Database) brings together all known information about tsunamis that occurred prior to written records.

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

More information about our online freshwater databases.

NIWA provides national capabilities in Water Quality Monitoring.

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.

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

Last Updated: July 2025

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.

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