ESD ideas: a 6-year oscillation in the whole Earth system?
Cazenave, A.; Pfeffer, J.; Mandea, M.; Dehant, V. (2023). ESD ideas: a 6-year oscillation in the whole Earth system? Earth System Dynamics 14(4): 733-735. https://dx.doi.org/10.5194/esd-14-733-2023
In: Earth System Dynamics. Copernicus: Göttingen. ISSN 2190-4979; e-ISSN 2190-4987, meer
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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