Magnetospheric Variations Resulting From the Propagation of an Interplanetary Shock

Details Magnetospheric Variations Resulting From the Propagation of an Interplanetary Shock Magnetospheric Variations Resulting From the Propagation of an Interplanetary Shock

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsm11a0315s&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SM11A-0315

Physics

2139 Interplanetary Shocks, 2736 Magnetosphere/Ionosphere Interactions (2431), 2740 Magnetospheric Configuration And Dynamics, 2753 Numerical Modeling, 2784 Solar Wind/Magnetosphere Interactions

Scientific paper

When an interplanetary shock interacts with the bow shock and magnetopause, its properties are modified and new discontinuities appear in the magnetosheath. Using results from a global magnetospheric MHD code, we study the propagation of a forward fast shock in the magnetosphere. We find that this forward fast shock reflects somewhere inside the magnetosphere and investigate the location of the reflecting boundary. An additional one- dimensional model has been developed to study interaction of the fast shock with the plasmapause. The forward and reflected shocks generate significant variations of the magnetic field and plasma parameters in the magnetosphere, which are confirmed by observations. The reflected fast shock passes through the magnetopause and magnetosheath and finally reaches the bow shock, where it forces the bow shock to move outward.

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