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3-D Mesoscale Mhd Simulations Of Magnetospheric Cusp-Like Configurations: Cusp Diamagnetic Cavities And Boundary Structure, E. Adamson, A. Otto, K. Nykyri
3-D Mesoscale Mhd Simulations Of Magnetospheric Cusp-Like Configurations: Cusp Diamagnetic Cavities And Boundary Structure, E. Adamson, A. Otto, K. Nykyri
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We present results from mesoscale simulations of the magnetospheric cusp region for both strongly northward and strongly southward interplanetary magnetic field (IMF). Simulation results indicate an extended region of depressed magnetic field and strongly enhanced plasma B which exhibits a strong dependence on IMF orientation. These structures correspond to the Cusp Diamagnetic Cavities (CDC’s). The typical features of these CDC’s are generally well reproduced by the simulation. The inner boundaries between the CDC and the magnetosphere are gradual transitions which form a clear funnel shape, regardless of IMF orientation. The outer CDC/magnetosheath boundary exhibits a clear indentation in both the …