Effects of Strong Interplanetary Disturbances on the Dayside Magnetosphere: Comparison between IMAGE Observations and Global MHD Modeling

Details Effects of Strong Interplanetary Disturbances on the Dayside Magnetosphere: Comparison between IMAGE Observations and Global MHD Modeling Effects of Strong Interplanetary Disturbances on the Dayside Magnetosphere: Comparison between IMAGE Observations and Global MHD Modeling

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsm42d..10b&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #SM42D-10

Physics

2724 Magnetopause, Cusp, And Boundary Layers, 2740 Magnetospheric Configuration And Dynamics, 2753 Numerical Modeling, 2784 Solar Wind/Magnetosphere Interactions, 2788 Storms And Substorms

Scientific paper

The ability to model transient responses of the Earth's magnetosphere to strong interplanetary disturbances is an important step toward understanding the complex dynamics of geomagnetic storms. Three-dimensional magnetohydrodynamic (MHD) simulations of the interaction of the solar wind with the Earth's magnetosphere are used to study the interaction of interplanetary shocks and strong pressure pulses with the magnetosphere. The study focuses on identifying and understanding the large-scale dynamics of the magnetopause boundary and the intensification of the dayside auroral activity observed on the arrival of strong interplanetary disturbances. To achieve this goal we have modeled several events using plasma and magnetic field parameters measured upstream of the bow shock as input to the simulations and discuss the simulation results in the context of spacecraft observations at the magnetospheric boundary and IMAGE auroral observations.

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