Generation of Convection in the Magne-tosphere-Ionosphere Coupling System

摘要

Based on the magnetosphere-ionosphere (M-l) coupling scheme, convection as a complex (compound) system is considered including the generation of plasma population regimes in the magnetosphere. To guarantee the self-consistency, the MHD simulation is adopted to analyze the problem. In these considerations, primary elements that must be set to a self-consistent configuration are convection flows in the magnetosphere and the ionosphere, filed aligned current (FAC) systems, ionospheric currents, energy conversion processes, and plasma pressure. Then, global current systems coupled with plasma population regimes are derived from the magnetohydrodynamic (MHD) force balance controlling the convection. The magnetospheric model derived from this consideration is the closed magnetosphere with open cusp. Based on the convection model proposed in this paper, a suggestion is given for the substorm models in the next decade that they must develop from a modular model to a globally self-consistent model.