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Moisture transport across Central America as a positive feedback on abrupt climatic changes

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  • Guillaume Leduc

    (CEREGE, UMR6635, CNRS Université Paul Cézanne Aix-Marseille III, Collège de France, Europôle de l’Arbois, BP 80, 13545 Aix-en-Provence Cedex 04, France)

  • Laurence Vidal

    (CEREGE, UMR6635, CNRS Université Paul Cézanne Aix-Marseille III, Collège de France, Europôle de l’Arbois, BP 80, 13545 Aix-en-Provence Cedex 04, France)

  • Kazuyo Tachikawa

    (CEREGE, UMR6635, CNRS Université Paul Cézanne Aix-Marseille III, Collège de France, Europôle de l’Arbois, BP 80, 13545 Aix-en-Provence Cedex 04, France)

  • Frauke Rostek

    (CEREGE, UMR6635, CNRS Université Paul Cézanne Aix-Marseille III, Collège de France, Europôle de l’Arbois, BP 80, 13545 Aix-en-Provence Cedex 04, France)

  • Corinne Sonzogni

    (CEREGE, UMR6635, CNRS Université Paul Cézanne Aix-Marseille III, Collège de France, Europôle de l’Arbois, BP 80, 13545 Aix-en-Provence Cedex 04, France)

  • Luc Beaufort

    (CEREGE, UMR6635, CNRS Université Paul Cézanne Aix-Marseille III, Collège de France, Europôle de l’Arbois, BP 80, 13545 Aix-en-Provence Cedex 04, France)

  • Edouard Bard

    (CEREGE, UMR6635, CNRS Université Paul Cézanne Aix-Marseille III, Collège de France, Europôle de l’Arbois, BP 80, 13545 Aix-en-Provence Cedex 04, France)

Abstract

Reconstruction of sea surface salinities in the eastern equatorial Pacific Ocean over the past 90,000 years detected strong millennial-scale fluctuations that are associated with the migration of the tropical Atlantic Intertropical Convergence Zone. Thus, millennial-scale fluctuations of moisture transport constitute an important feedback mechanism for abrupt climate changes, modulating the North Atlantic freshwater budget and hence North Atlantic ocean circulation.

Suggested Citation

  • Guillaume Leduc & Laurence Vidal & Kazuyo Tachikawa & Frauke Rostek & Corinne Sonzogni & Luc Beaufort & Edouard Bard, 2007. "Moisture transport across Central America as a positive feedback on abrupt climatic changes," Nature, Nature, vol. 445(7130), pages 908-911, February.
    • Handle: RePEc:nat:nature:v:445:y:2007:i:7130:d:10.1038_nature05578
    DOI: 10.1038/nature05578
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