Ice tongue calving in Antarctica triggered by the Hunga Tonga volcanic tsunami, January 2022 ...

<!--!introduction!--> The extraordinary Hunga Tonga-Hunga Ha'apai volcano eruption occurred on 15 January 2022 had quite a global influence through ejecting volcanic ashes and unleashing a variety of strong waves that rippled through oceans and the atmosphere. Here we use remote sensing d...

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Bibliographic Details
Main Authors: Liang, Qi, Li, Teng, Zheng, Lei, Hui, Fengming, Chen, Zhuoqi, Cheng, Xiao
Format: Conference Object
Language:unknown
Published: GFZ German Research Centre for Geosciences 2023
Subjects:
Antarctic
Drygalski
Drygalski Ice Tongue
Tonga
Antarc*
Antarctica
Ice Shelves
Iceberg*
Online Access:https://dx.doi.org/10.57757/iugg23-0531
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016944
Description
Summary:<!--!introduction!--> The extraordinary Hunga Tonga-Hunga Ha'apai volcano eruption occurred on 15 January 2022 had quite a global influence through ejecting volcanic ashes and unleashing a variety of strong waves that rippled through oceans and the atmosphere. Here we use remote sensing data to show that a tsunami triggered by the violent explosion resulted in calving from a remote Antarctic ice tongue. The volcano-triggered tsunami travelled over 6,000 km before impinging on the Drygalski Ice Tongue, resulting in the calving of a 10 km × 4.5 km iceberg from the ice front. Our study provides the most detailed observational evidence to date and confirms the linkages between the tsunami and the iceberg calving. Furthermore, it implies the stability of ice shelves in Antarctica may be influenced by extreme events outside the polar regions. ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ...

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