利用SME指数研究CIR和ICME磁暴主阶段的极光活动

Solnechno-Zemnaya Fizika Pub Date : 2021-12-20 DOI:10.12737/szf-74202103

R. Boroev, M. Vasiliev

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引用次数: 1

摘要

．本文研究了CIR和ICME事件引起的磁暴主阶段的SME指数与磁暴特征和行星际介质参数的关系。在1990-2017年期间，选取了(64)CIR和(43)ICME事件驱动的107次磁暴。与AE和Kp相比，在磁暴主阶段，平均SME指数(SMEaver)与行星际介质参数之间存在更强的相关性。在CIR和ICME事件中，SMEaver与西南电场(向南的IMF Bz)之间有密切的相关系数。SMEaver已被发现随着磁暴发展和Dstmin的速度而增加。对于CIR和ICME事件，SMEaver和Dstmin在线性回归方程中没有差异。

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Studying auroral activity using the SME index at the magnetic storm main phase during CIR and ICME events

. In this paper, we examine the relationship of the SME index with magnetic storm characteristics and interplanetary medium parameters during the main phase of magnetic storms caused by CIR and ICME events. Over the period 1990–2017, 107 magnetic storms driven by (64) CIR and (43) ICME events have been selected. In contrast to AE and Kp, a stronger correlation is shown to exist between the average SME index (SMEaver) and interplanetary medium parameters during the magnetic storm main phase. Close correlation coefficients between SMEaver and the SW electric field (southward IMF Bz) have been obtained for CIR and ICME events. SMEaver has been found to increase with the rate of magnetic storm development and |Dstmin|. For CIR and ICME events, no difference has been revealed between SMEaver and |Dstmin| in linear regression equations.

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Solnechno-Zemnaya Fizika

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