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Ocean temperature impact on ice shelf extent in the eastern Antarctic Peninsula

Cited 13 time in wos
Cited 14 time in scopus
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Ocean temperature impact on ice shelf extent in the eastern Antarctic Peninsula
Other Titles
남극 동부 대륙의 빙붕에 수온이 미치는 영향
Etourneau, Johan
Sgubin, Giovanni
Crosta, Xavier
Swingedouw, Didier
Willmott, Veronica
Barbara, Loic
Houssais, Marie-Noelle
Schouten, Stefan
Damste, Jaap S. Sinninghe
Goosse, Hugues
Escutia, Carlota
Crespin, Julien
Masse, Guillaume
Kim, Junghyun
Science & Technology - Other Topics
Issue Date
Johan Etourneau, et al. 2019. "Ocean temperature impact on ice shelf extent in the eastern Antarctic Peninsula". NATURE COMMUNICATIONS, 10(304): 1-8.
The recent thinning and retreat of Antarctic ice shelves has been attributed to both atmosphere and ocean warming. However, the lack of continuous, multi-year direct observations as well as limitations of climate and ice shelf models prevent a precise assessment on how the ocean forcing affects the fluctuations of a grounded and floating ice cap. Here we show that a +0.3-1.5 degrees C increase in subsurface ocean temperature (50-400 m) in the northeastern Antarctic Peninsula has driven to major collapse and recession of the regional ice shelf during both the instrumental period and the last 9000 years. Our projections following the representative concentration pathway 8.5 emission scenario from the Fifth Assessment Report of the Intergovernmental Panel on Climate Change reveal a +0.3 degrees C subsurface ocean temperature warming within the coming decades that will undoubtedly accelerate ice shelf melting, including the southernmost sector of the eastern Antarctic Peninsula.
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