Intense (SYM - H 6-100 nT) geomagnetic storms induced by planar magnetic structures in co-rotating interaction regions

被引：2

作者：

Choraghe, Komal ^{[1
]}

Shaikh, Zubair ^{[2
]}

Raghav, Anil ^{[1
]}

Ghag, Kalpesh ^{[1
]}

Dhamane, Omkar ^{[1
]}

机构：

[1] Univ Mumbai, Univ Dept Phys, Mumbai 400098, India

[2] Indian Inst Geomagnetism IIG, Navi Mumbai 410218, India

来源：

ADVANCES IN SPACE RESEARCH | 2023年 / 72卷 / 08期

关键词：

Geomagnetic storm; CIR; ICME; PMS; CORONAL MASS EJECTIONS; INTERPLANETARY ORIGIN; ALFVEN-WAVE; ENERGETIC PARTICLES; RING CURRENT; IONOSPHERE; EVOLUTION; SHEATH; FIELD; SUN;

D O I：

10.1016/j.asr.2023.06.022

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Generally, Co-rotating Interaction Region (CIR) induced geomagnetic storms are weak to moderate in magnitude. Moreover, CIRs can also drive intense storms when they are coupled with an ICME or other interplanetary structures. Here, we investigated all intense (SYM - H 6 -100 nT) geomagnetic storms caused by CIRs from the years 1996 to 2016. We found 12 intense storms that were solely caused by CIRs, i.e., without any component of ICME. We observed the evolution of a planar magnetic structure (PMS) in 10 CIR events i.e. 83% during the storm's main phase. It suggests that PMS-like quasi-2D magnetic structures might play a significant role in strengthening the Bz component, which causes the intensification of the storm during CIR transit. (c) 2023 COSPAR. Published by Elsevier B.V. All rights reserved.

引用

页码：3220 / 3228

页数：9