• ISSN 2097-1893
  • CN 10-1855/P
马孟暄,沈芳,刘佑生. 2022. 日冕物质抛射传播过程模拟研究. 地球与行星物理论评,53(4):397-415. doi: 10.19975/j.dqyxx.2021-064
引用本文: 马孟暄,沈芳,刘佑生. 2022. 日冕物质抛射传播过程模拟研究. 地球与行星物理论评,53(4):397-415. doi: 10.19975/j.dqyxx.2021-064
Ma M X, Shen F, Liu Y S. 2022. Simulation study on the propagation process of coronal mass ejection. Reviews of Geophysics and Planetary Physics, 53(4): 397-415. doi: 10.19975/j.dqyxx.2021-064
Citation: Ma M X, Shen F, Liu Y S. 2022. Simulation study on the propagation process of coronal mass ejection. Reviews of Geophysics and Planetary Physics, 53(4): 397-415. doi: 10.19975/j.dqyxx.2021-064

日冕物质抛射传播过程模拟研究

Simulation study on the propagation process of coronal mass ejection

  • 摘要: 日冕物质抛射(coronal mass ejection, CME)是一种由太阳的剧烈活动所引发的空间天气现象,如何针对特定的CME/太阳风暴事件了解其日冕/行星际传播及演化过程,预报是否以及何时到达地球轨道,预测近地空间太阳风状态相应的变化,是空间天气科学界一直关注的重要课题之一. CME通常携带巨大的能量,当其到达地球附近空间时,会造成地球附近空间环境的剧烈扰动,从而引发一系列的灾害性空间天气现象,例如地磁暴. 为了能够更好地运用太空资源和发展空间科学,避免遭受由 CME 引发的灾害性空间天气的损害,对 CME 的准确预报的能力就显得尤为重要. 对CME传播过程进行数值模拟是研究CME演化过程和提高CME预报准确性的重要方法. 本文主要介绍了利用数值模拟方法对CME传播过程的最新研究进展. 首先总结了用于CME传播数值模拟的各种模型,包括背景太阳风模型、CME初始化模型、日冕磁场重建模型等,总结了各种模型在CME传播模拟过程中的应用及研究进展. 然后介绍了关于CME偏转方面的模拟研究进展,包括CME在日冕和行星际空间中不同的偏转特征. 接着介绍了CME间的相互作用及其模拟研究的最新动态. 最后提出了CME传播过程模拟研究方向亟待解决的若干问题,并对其发展方向和前景进行展望.

     

    Abstract: Coronal mass ejection (CME) is a kind of space weather phenomenon caused by the intense activity of the sun. Important issues of concern to the space weather community include understanding the propagation and evolution of a particular CME in the corona and interplanetary space, forecasting whether and when it will reach the earth orbit, and predicting the change of solar wind state in near-earth space. CME always carries a vast amount of energy. When it reaches space near the earth, it will cause a severe disturbance, and trigger catastrophic space weather events, such as the geomagnetic storm. In order to utilize space resources and develop space science more deeply, avoid the damage of severe space weather caused by CME, it is important to improve the accuracy and efficiency of CME forecasting. Numerical simulation is one of the practical tools for the study and prediction of CME's propagation.This review introduces the different models used in the CME propagation simulations and their latest research progress. Firstly, we summarize the various CME propagation simulation models including background solar wind models, CME initialization models, and coronal magnetic field reconstruction models. The outline of the application and research progress of these models in the propagation simulation is also presented. Then, we review the simulation studies on the deflection of CME, including the deflection in the corona and its interaction with CIR. The relationship between CMEs and their simulation is then discussed. Finally, based on this research, we propose the problems that need to be solved in the CME propagation simulation research and give a few prospects.

     

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