NAUGHTON, Filipa; SANCHEZ GONI, Maria Fernanda; LANDAIS, Amaelle; RODRIGUES, Teresa; RIVEIROS, Natalia Vazquez; TOUCANNE, Samuel

doi:10.1016/B978-0-323-91899-2.00015-2

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NAUGHTON, Filipa

SANCHEZ GONI, Maria Fernanda
Environnements et Paléoenvironnements OCéaniques [EPOC]

LANDAIS, Amaelle

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Chapitre d'ouvrage

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European Glacial Landscapes: The Last Deglaciation. 2023-01-01p. 45-50

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The Bølling–Allerød (B-A), the terrestrial counterpart of Dansgaard–Oeschger 1, is the first abrupt northern hemisphere climate warming episode of the last deglaciation. Several hypotheses have been proposed to explain this event: all involve the strengthening of the Atlantic Meridional Overturning Circulation (AMOC) prior or during the Heinrich Stadial 1/B-A transition and the consequent warming of the northern hemisphere. Terrestrial proxies (mainly pollen and speleothems) reflect a progressive increase in moisture availability from the Bølling to the Allerød in Europe contrasting with Greenland isotope records which show maxima in temperature and precipitation at the onset of the Bølling and a gradual decrease to the end of the Allerød. Changes in moisture availability in Europe are triggered by coupled interactions between the AMOC and changes in atmospheric dynamics led by the westerlies.< Leer menos

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Chapter 6 - The Bølling–Allerød Interstadial

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