ETOURNEAU, Johan; SGUBIN, Giovanni; CROSTA, Xavier; SWINGEDOUW, Didier; WILLMOTT, Verónica; BARBARA, Loïc; HOUSSAIS, Marie-Noëlle; SCHOUTEN, Stefan; DAMSTÉ, Jaap S. Sinninghe; GOOSSE, Hugues; ESCUTIA, Carlota; CRESPIN, Julien; MASSÉ, Guillaume; KIM, Jung-Hyun

doi:10.1038/s41467-018-08195-6

Environnements et Paléoenvironnements OCéaniques [EPOC]
Instituto Andaluz de Ciencias de la Tierra [IACT]

SGUBIN, Giovanni

Instituto Andaluz de Ciencias de la Tierra [IACT]

CROSTA, Xavier

Instituto Andaluz de Ciencias de la Tierra [IACT]

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Nature Communications. 2019, vol. 10, n° 1, p. 304

Resumen en inglés

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.< Leer menos

URI

https://oskar-bordeaux.fr/handle/20.500.12278/188485

DOI

http://dx.doi.org/10.1038/s41467-018-08195-6

Proyecto europeo

Earth system Model Bias Reduction and assessing Abrupt Climate change
Novel Lipid Biomarkers from Polar Ice: Climatic and Ecological Applications.
Climate change - Learning from the past climate

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EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805

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

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Resumen en inglés

URI

DOI

Proyecto europeo

Centros de investigación