Studying the Viscous Interaction during the Whole Heliosphere Interval

Details Studying the Viscous Interaction during the Whole Heliosphere Interval Studying the Viscous Interaction during the Whole Heliosphere Interval

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsa32a..02b&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SA32A-02

Physics

[2724] Magnetospheric Physics / Magnetopause And Boundary Layers, [2753] Magnetospheric Physics / Numerical Modeling, [2784] Magnetospheric Physics / Solar Wind/Magnetosphere Interactions

Scientific paper

The Whole Heliosphere Interval (WHI), encompassing Carrington Rotation 2068, has been extensively studied through observations and simulations. We use the Lyon-Fedder-Mobarry (LFM) global MHD simulation to study the mechanical interaction between the solar wind and the magnetosphere (the "viscous interaction") during the WHI. We have run LFM for several variations of the solar wind conditions during the WHI, including no Bz component, no By component, no interplanetary magnetic field (IMF) at all, as well as the full IMF, to evaluate the effect of the viscous interaction on the cross polar cap potential. We compare these results to the results predicted by two empirical formulations for the viscous potential, as well as a recent formulation derived from other results from the LFM simulation.

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