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Article Dans Une Revue Climate Research Année : 2021

Absence of an internal multidecadal oscillation in the North Atlantic has consequences for anticipating the future of marine ecosystems

G Beaugrand
  • Fonction : Auteur
R.R. Kirby
  • Fonction : Auteur

Résumé

The North Atlantic marine ecosystem has been expected to adjust imminently to a negative phase of the Atlantic Multidecadal Oscillation (AMO). Recent results suggest, however, that the AMO is not a regular internal source of variability, but has been driven by both volcanism and sulphate aerosol emissions that have influenced temperature negatively, and a period of greenhouse gas accumulation causing temperatures to be higher than normal. The demise of the AMO removes the expected and imminent cyclical change from the current warm phase to a negative cool phase in the North Atlantic. Here, we discuss the implications of this new finding for the near-future of North Atlantic marine ecosystems in a context of rapid climate warming.
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Dates et versions

hal-04203695 , version 1 (11-09-2023)

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G Beaugrand, Robin Faillettaz, R.R. Kirby. Absence of an internal multidecadal oscillation in the North Atlantic has consequences for anticipating the future of marine ecosystems. Climate Research, 2021, 85, pp.107-111. ⟨10.3354/cr01676⟩. ⟨hal-04203695⟩
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