Solar Wind Driven Magnetospheric-Ionospheric Complex Dynamics Model

该项目将扩展WINDMI磁层亚暴模型。本文将建立一个新的、空间分辨的磁层-电离层耦合系统非线性动力学模型。这个耦合系统是由太阳风的输入驱动的。该模型由麦克斯韦方程组和非线性等离子体动力学推导而来。它有许多反馈和前馈回路，提供了一个低维动态系统，可以捕获导致亚暴的大多数重要物理过程。将磁层-电离层系统视为低维非线性动力系统的方法与其他一些研究小组正在进行的全球尺度模拟非常不同，但又互为补充。该项目将研究产生不同类型亚暴及其强度的功率流和能量释放的差异。由于该模式可由从L1点的观测或结合太阳风模拟的太阳观测获得的太阳风状态信息驱动，因此该模式具有对空间天气预报有用的预测能力。

This project will extend the WINDMI model of magnetospheric substorms. A new, spatially-resolved nonlinear dynamics model of the coupled magnetosphere-ionosphere system will be developed. That coupled system is driven by inputs from the solar wind. The model is derived from Maxwell's equations and nonlinear plasma dynamics. It has numerous feedback and feed-forward loops that provide a low-dimensional dynamic system that can capture most of the important physical processes that lead to substorms. The method of treating the magnetosphere-ionosphere system as a low-dimensional, nonlinear dynamical system is very different from, but complementary to, the global scale simulations that are being done by a number of other research groups. The project will examine the differences in the power flow and energy releases that give rise to different types of substorms and intensifications. Because the model can be driven by information on the state of the solar wind that can be obtained either from observations at the L1 point or from solar observations in conjunction with solar-wind modeling, the model has predictive capabilities that are useful for space weather forecasting.