The modeling of a substorm event using the Rice Convection Model with an equilibrium magnetic field

Details The modeling of a substorm event using the Rice Convection Model with an equilibrium magnetic field The modeling of a substorm event using the Rice Convection Model with an equilibrium magnetic field

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsm11a1578y&link_type=abstract

American Geophysical Union, Fall Meeting 2008, abstract #SM11A-1578

Physics

2730 Magnetosphere: Inner, 2760 Plasma Convection (2463), 2764 Plasma Sheet, 2778 Ring Current, 2790 Substorms

Scientific paper

We present a simulation of a non-storm-time substorm event on 29 Oct 2004 using the Rice Convection Model coupled with the Magneto-Friction code for the first time. The model includes the self-consistent feedback of both electric field and magnetic field. The modeling of the growth phase during fairly stable southward solar wind driving confirms the classic picture of the substorm growth phase. The expansion phase is modeled by non-adiabatically reducing the entropy parameter PV5/3 along the tailward boundary of the RCM. It confirms the idea that the reduction of the entropy parameter PV5/3 plays an important role in the plasma injection and the magnetic field dipolarization following substorm onset. The modeling results are compared with multipoint observations with good consistency, including the magnetic field, plasma moments, magnetic flux transport and the estimated local flux tube volume V and the entropy parameter PV5/3 in the near-Earth plasma sheet, as well as the magnetic field, plasma moments and energetic- particle fluxes at geosynchronous orbit. This simulation provides a global view of the changing of magnetic field configuration and the plasma transportation throughout an entire substorm cycle.

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