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Ocean temperature impact on ice shelf extentin the eastern Antarctic Peninsula

Cited 5 time in wos
Cited 5 time in scopus
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Ocean temperature impact on ice shelf extentin the eastern Antarctic Peninsula
Other Titles
남극 동부 대륙의 빙붕에 수온이 미치는 영향
Johan Etourneau
Giovanni Sgubin
Xavier Crosta
Didier Swingedouw
Veronica Willmott
Loic Barbara
Marie-Noelle Houssais
Stefan Schouten
Jaap S. Sinninghe Damste
Hugues Goosse
Carlota Escutia
Julien Crespin
Guillaume Masse
Kim, Junghyun
Antarctic ice shelf; subsurface ocean temperature
Issue Date
Johan Etourneau, et al. 2019. "Ocean temperature impact on ice shelf extentin 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 °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 °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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