Modeling the Storm Time Electrodynamics
Modeling the Storm Time Electrodynamics
复制标题
风暴时间电动力学建模
DOI：
--
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
G. Millward
中科院分区：
文献类型：
--
作者：
N. Maruyama;T. Fuller‐Rowell;M. Codrescu;D. Anderson;A. Richmond;A. Maute;S. Sazykin;F. Toffoletto;R. Spiro;R. Wolf;G. Millward
一个模型，电动耦合内磁层，电离层，等离子体，热层，和电动力学已经开发出来，并被用来分离源的磁暴时间电场之间的磁层，电离层，和热层的过程，并调查他们的非线性相互作用。电场扰动的两个来源，即时穿透（PP）和干扰发电机（DD），已被确定在耦合模型的结果。此外，研究结果表明，在风暴时间电场的变化的来源与PP和DD之间的非线性相互作用，这样的响应取决于耦合系统的预处理。本研究中的预处理是由于磁层、电离层和热层作为一个耦合系统对外部强迫的响应而引起的。结果清楚地表明，需要一个完全耦合的磁层电离层热层模型，以确定预处理效果。
A model that electrodynamically couples inner magnetosphere, ionosphere, plasmasphere, thermosphere, and electrodynamics has been developed and is used to separate sources of the storm time electric fields between the magnetospheric, ionospheric, and thermospheric processes and to investigate their nonlinear interactions. The two sources of the electric-field disturbances, prompt penetration (PP) and disturbance dynamo (DD), have been identified in the coupled model results. Furthermore, the results suggest that the sources of variability in storm time electric fields are associated with the nonlinear interaction between the PP and DD, such that the response depends on the preconditioning of the coupled system. The preconditioning in this study is caused by the fact that the magnetosphere, ionosphere, and thermosphere respond to external forcing as a coupled system. The results clearly demonstrate the need for a fully coupled model of magnetosphere–ionosphere–thermosphere, in order to determine the preconditioning effect.