Seismic & tsunami waves from the September 2023, Dickson Fjord, Greenland landslide & fjord seiche
Автор: Stephen Hicks - Seismologist
Загружено: 2024-09-12
Просмотров: 144816
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For a detailed explanation, please see this video by the same author: • How climate change triggered a landslide t... .
The left panel shows a ground motion visualisation, showing the seismic wave from the Greenland seiche spreading out around the planet. Each circle shows the data from an individual seismic monitoring station. The right panel shows a numerical simulation of the 16 September 2023 tsunami and seiche in Dickson fjord, showing the initial tsunami stabilising into a fjord-transverse sloshing backwards and forwards every 90 seconds, which lasts for over 9 days. The sloshing of the water transfers momentum into Earth's crust, generating the globally-observed seismic signal.
These results come from a paper published in Science on 12 September 2023: http://www.science.org/doi/10.1126/sc.... (Or without the paywall here: https://drive.google.com/file/d/15Hhs....
Music credit: "Seiche" by Isabelle Ryder ( • Seiche ; https://isabellerydermusic.weebly.com).
Aimation credit: Stephen Hicks; Kristian Svennevig; Thomas Lecocq; Alexis Marbeouf.
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