On the Earth's Magnetospheric Nonequilibrium Dynamics and the Fluctuation theorem

Details On the Earth's Magnetospheric Nonequilibrium Dynamics and the Fluctuation theorem On the Earth's Magnetospheric Nonequilibrium Dynamics and the Fluctuation theorem

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsm51b0529d&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SM51B-0529

Physics

2740 Magnetospheric Configuration And Dynamics, 2788 Magnetic Storms And Substorms (7954), 4430 Complex Systems, 4475 Scaling: Spatial And Temporal (1872, 3270, 4277)

Scientific paper

The Earth's magnetosphere evolves as an out-of-equilibrium system due to the continuous coupling with the solar wind and the Earth's ionosphere. Here, we test the Fluctuation Theorem for the magnetospheric dynamics by investigating the long time evolution of the Earth's magnetospheric ring-current, as monitored by the geomagnetic Dst-index. We find that the symmetries implied by the Fluctuation Theorem are all verified, thus providing a proof of the existence of a steady-state far-from-equilibrium for the Earth's magnetosphere.

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