Similarities and Differences between Forbush Decreases Associated with Streams from Coronal Holes, Filament Ejections, and Ejections from Active Regions

被引：4

作者：

Melkumyan, A. A. ^{[1
]}

Belov, A. V. ^{[1
]}

Abunina, M. A. ^{[1
]}

Shlyk, N. C. ^{[1
]}

Abunin, A. A. ^{[1
]}

Oleneva, V. A. ^{[1
]}

Yanke, V. G. ^{[1
]}

机构：

[1] Russian Acad Sci, Pushkov Inst Terr Magnetism Ionosphere & Radio Wa, Moscow, Russia

来源：

GEOMAGNETISM AND AERONOMY | 2022年 / 62卷 / 03期

基金：

俄罗斯科学基金会;

关键词：

SOLAR-WIND; MASS EJECTIONS; MAGNETIC CLOUDS; DISTURBANCES; TEMPERATURE; SPEED; MODULATION; CATALOG;

D O I：

10.1134/S0016793222030112

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：

The Forbush decreases for the period from 1997 to 2020 were studied based on data from the database on Forbush effects and interplanetary disturbances created and maintained at the Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation (IZMIRAN). Using statistical methods, we compared the Forbush decreases associated with coronal mass ejections from active regions of the Sun accompanied by solar flares; filament ejections outside active regions; high-speed streams from coronal holes; and several sources. The difference between Forbush decreases was related to coronal mass ejections when magnetic clouds in the interplanetary disturbances near the Earth were observed or not observed. It has been shown that the distributions of most of parameters are asymmetric for the sporadic Forbush decreases; for the recurrent Forbush decreases, they are nearly symmetric. The strongest correlations between the parameters of Forbush decreases and interplanetary disturbances are observed in the group of coronal ejections from active regions that are accompanied by solar flares and have a structure of magnetic cloud.

引用

页码：159 / 177

页数：19

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