Article Dans Une Revue Earth System Dynamics Année : 2023

ESD Ideas: A 6-year oscillation in the whole Earth system?

Résumé

An oscillation of about 6 years has been reported in Earth's fluid core motions, magnetic field, rotation, and crustal deformations. Recently, a 6-year cycle has also been detected in several climatic parameters (e.g., sea level, surface temperature, precipitation, land hydrology, land ice, and atmospheric angular momentum). Here, we suggest that the 6-year oscillations detected in the Earth's deep interior, rotation, and climate are linked together and that the core processes previously proposed as drivers of the 6-year cycle in the Earth's rotation additionally cause the atmosphere to oscillate together with the mantle, inducing fluctuations in the climate system with similar periodicities.

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hal-04631620 , version 1 (02-07-2024)

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Anny Cazenave, Julia Pfeffer, Mioara Mandea, Veronique Dehant. ESD Ideas: A 6-year oscillation in the whole Earth system?. Earth System Dynamics, 2023, 14 (4), pp.733-735. ⟨10.5194/esd-14-733-2023⟩. ⟨hal-04631620⟩
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