Previously, Tsurutani and Lakhina (2014, https://doi.org/10.1002/2013GL058825) created estimates for a “perfect” interplanetary coronal mass ejection and performed simple calculations for the response of geospace, including . In this study, these estimates are used to drive a coupled magnetohydrodynamic‐ring current‐ionosphere model of geospace to obtain more physically accurate estimates of the geospace response to such an event. The sudden impulse phase is examined and compared to the estimations of Tsurutani and Lakhina (2014, https://doi.org/10.1002/2013GL058825). The physics‐based simulation yields similar estimates for Dst rise, magnetopause compression, and equatorial values as the previous study. However, results diverge away from the equator. values in excess of 30 nT/s are found as low as magnetic latitude. Under southward interplanetary magnetic field conditions, magnetopause erosion combines with strong region one Birkeland currents to intensify the response. Values obtained here surpass those found in historically recorded events and set the upper threshold of extreme geomagnetically induced current activity at Earth.

中文翻译：

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理想的理想行星际日冕质量抛射对地球空间响应的数值模拟

此前，Tsurutani和Lakhina（2014，https://doi.org/10.1002/2013GL058825）创建了“完美的”行星际日冕质量抛射的估算值，并对地球空间的响应进行了简单的计算，包括。在这项研究中，这些估计值用于驱动耦合的磁流体动力学环流-电离层地球空间模型，以获得对物理空间对此类事件响应的更准确的物理量估计。检查了突发冲动阶段并将其与Tsurutani和Lakhina的估计值进行比较（2014年，https：//doi.org/10.1002/2013GL058825）。基于物理学的模拟得出的Dst上升，绝经期压缩和赤道值的估计与之前的研究相似。但是，结果偏离赤道。超过30 nT / s的值被发现低至磁纬度。在向南的行星际磁场条件下，更年期磁蚀与强区域一的伯克兰电流相结合，以增强响应。此处获得的值超过了历史记录事件中发现的值，并设置了地球上极端地磁感应电流活动的上限。