STUDYING AURORAL ACTIVITY USING THE SME INDEX AT THE MAGNETIC STORM MAIN PHASE DURING CIR AND ICME EVENTS

被引：3

作者：

Boroyev, R. N. ^{[1
,2
]}

Vasiliev, M. S. ^{[1
,2
]}

机构：

[1] FRC YaSC SB RAS, Yu G Shafer Inst Cosmophys Res & Aeron SB RAS, Yakutsk, Russia

[2] MK Ammosov North Eastern Fed Univ, Yakutsk, Russia

来源：

SOLAR-TERRESTRIAL PHYSICS | 2021年 / 7卷 / 04期

关键词：

magnetic storm; SME index; Dst index; solar wind; electric field; INTERPLANETARY CONDITIONS; GEOMAGNETIC-ACTIVITY; ELECTRIC-FIELD; PARAMETERS; DEPENDENCE; AE;

D O I：

10.12737/stp-74202103

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

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 B-z) have been obtained for CIR and ICME events. SMEaver has been found to increase with the rate of magnetic storm development and (vertical bar)Dst(min vertical bar). For CIR and ICME events, no difference has been revealed between SMEaver and (vertical bar)Dst(min vertical bar) in linear regression equations.

引用

页码：18 / 23

页数：6

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