Volcanic eruptions can trigger tsunamis that pose significant threats to nearby coastal communities. The mechanisms responsible for the formation of tsunamis after volcanic eruptions are still poorly understood. Some possibilities include submarine landslides, pyroclastic flows (fast-moving current of hot gas and volcanic matter that flows in the ocean), caldera column collapses (massive blocks of rock near the top of the volcano sliding down into the volcano), deep-ocean explosions, volcano-tectonic earthquakes, or atmospheric air-pressure waves. More research is needed to better understand these mechanisms so that better early warning systems can be developed. The Hunga-Tonga Hunga-Ha′apai volcano is situated in the South Pacific Ocean about 1000 km south of Fiji and Samoa islands
Severine Fournier, NASA/Jet Propulsion Laboratory, [email protected] Willis, NASA/Jet Propulsion Laboratory, [email protected] Introduction The annual Ocean Surface Topography (OST) Science Team Meeting (STM) provides a forum for the international altimetry community to foster collaboration, address specific issues, and highlight scientific results and applications every year. The meeting location alternates between Europe and the U.S. The 2023 meeting […]
Read the European Space Agency's story about how Tero Water Level methodology developed by @isardsat, @smhi & @lobeliaearth helped reveal hundreds of previously undetectable small lakes in the #Arctic
This method uses #altimetry data to detect small water bodies anywhere in the 🌍
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💧🌏 Greg Cocks
Phil Browne
Fiona Gregory
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