Modeling the inner magnetosphere with a coupled Rice Convection Model.

Details Modeling the inner magnetosphere with a coupled Rice Convection Model. Modeling the inner magnetosphere with a coupled Rice Convection Model.

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sm31b08t&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SM31B-08

Computer Science

Performance

2708 Current Systems (2409), 2730 Magnetosphere--Inner, 2740 Magnetospheric Configuration And Dynamics, 2764 Plasma Sheet, 2788 Storms And Substorms

Scientific paper

The RCM/Equilibrium model couples the traditional Rice Convection Model of the inner magnetosphere with a magneto-friction equilibrium solver that calculates magnetic field configurations in approximate force-balance with a given plasma distribution. This model has previously been used to investigate the growth phase of substorms. Under conditions of steady sunward convection the model showed that the inner plasma sheet magnetic field becomes increasingly stretched, that the current-sheet thins, and that a magnetic-field minimum forms near 10 Re. As the stress in the stretched configuration continued to increase, the numerical machinery of the model eventually failed. We have recently upgraded the numerics of the coupled model by inclusion of a higher order advection scheme into the RCM. Further model improvements have included adding a model of realistic auroral conductances based on the IRI/MSIS empirical models and an active auroral conductance model. Model performance using the new algorithm as well as results from modeling of a substorm growth and expansion phase will be discussed.

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