CR 85:107-111 (2021) - DOI: https://doi.org/10.3354/cr01676
OPINION PIECE
Absence of an internal multidecadal oscillation in the North Atlantic has consequences for anticipating the future of marine ecosystems
G. Beaugrand1, R. Faillettaz2, R. R. Kirby3,4,*
ABSTRACT: 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.
KEY WORDS: Climate change · Russell Cycle · Bluefin tuna · Sea surface temperature · AMO
| Full text in pdf format | Cite this article as: Beaugrand G, Faillettaz R, Kirby RR
(2021) Absence of an internal multidecadal oscillation in the North Atlantic has consequences for anticipating the future of marine ecosystems. Clim Res 85:107-111. https://doi.org/10.3354/cr01676
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