New maps from NIWA and the Deep South National Science Challenge show areas across Aotearoa New Zealand that could be inundated by extreme coastal flooding.
Prior to 15 January, Hunga Tonga-Hunga Ha'apai was a little-known undersea South Pacific volcano with a long name. Within 24 hours, it was a global phenomenon – the site of the largest atmospheric explosion in almost 150 years. Jessica Rowley looks at why a remote Tongan volcano took the world by storm.
Cam-Era is a network of computer-controlled cameras that monitor the New Zealand environment for research and resource management. These are also useful for surfers and swimmers.
New maps from NIWA and the Deep South National Science Challenge show areas across Aotearoa New Zealand that could be inundated by extreme coastal flooding.
Storm-tide red alerts are the highest high tide (also known as king tides) dates that Emergency Managers and Coastal Hazard Managers should write in their diaries and keep an eye on adverse weather (low barometric pressure, onshore winds), river levels and sea conditions (waves and swell). This page shows the 2023 dates of the highest high-tide "red alert" dates, and the lowest high-tide dates.
Prior to 15 January, Hunga Tonga-Hunga Ha'apai was a little-known undersea South Pacific volcano with a long name. Within 24 hours, it was a global phenomenon – the site of the largest atmospheric explosion in almost 150 years. Jessica Rowley looks at why a remote Tongan volcano took the world by storm.
NIWA and Surf Life Saving New Zealand are working together to develop a state-of-the-art, rip current identification tool underpinned by artificial intelligence (AI) and deep learning technologies.
Innovative experiments are giving natural hazard researchers and PhD students a close look at how erupting volcanoes can cause deadly and damaging tsunamis.
We combine capabilities in weather, storm surge and tide forecasting with tide gauge observations to predict sea levels for specific locations under forecast weather conditions.
High waves pounding Wellington’s south coast today are being caused by a deep area of low pressure passing the Chatham Islands, according to NIWA forecaster Ben Noll.
New Zealand’s changing ocean environment has prompted the call to develop a system that will keep closer tabs on information from scientific monitoring buoys so the data they produce can be shared as widely as possible.
Coastal hazards, driven by more extreme coastal physical processes (including coinciding factors), can cause damage, disruption and even casualties in estuaries, river mouths, open coasts and coastal/shelf waters.
Coming from the Japanese word 'harbour wave', tsunami are a series of waves – with wave lengths up to hundreds of kilometres between crests - caused by undersea seismic disturbances.
New Zealand’s coast is sculpted by ocean waves. Some wave conditions bring joy to surfers and beachgoers, but, at other times, waves can cause major hazards at sea or along the shore.
The waters around New Zealand have some of the highest waves in the world, being exposed to swell coming up from the Southern Ocean, as well as storms in the Tasman Sea and Pacific Ocean.