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Journal Article

Small-scale Induced Large-scale Transitions in Solar Wind Magnetic Field


Alberti,  Tommaso
External Organizations;

Faranda,  Davide
External Organizations;


Donner,  Reik V.
Potsdam Institute for Climate Impact Research;

Caby,  Theophile
External Organizations;

Carbone,  Vincenzo
External Organizations;

Consolini,  Giuseppe
External Organizations;

Dubrulle,  Berengere
External Organizations;

Vaienti,  Sandro
External Organizations;

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Alberti, T., Faranda, D., Donner, R. V., Caby, T., Carbone, V., Consolini, G., Dubrulle, B., Vaienti, S. (2021): Small-scale Induced Large-scale Transitions in Solar Wind Magnetic Field. - The Astrophysical Journal Letters, 914, 1, L6.

Cite as: https://publications.pik-potsdam.de/pubman/item/item_26603
We investigate the role of small-scale dynamics in inducing large-scale transitions in the solar wind magnetic field by means of dynamical system metrics based on instantaneous fractal dimensions. By looking at the corresponding multiscale features, we observe a break in the average attractor dimension occurring at the crossover between the inertial and the kinetic/dissipative regime. Our analysis suggests that large-scale transitions are induced by small-scale dynamics through an inverse cascade mechanism driven by local correlations, while electron contributions (if any) are hidden by instrumental noise.