Multi-instrument analysis of F-region ionospheric irregularities suppression over South America during the November 3, 2021, geomagnetic storm

IF 1.4 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS
Gilda de Lourdes González
{"title":"Multi-instrument analysis of F-region ionospheric irregularities suppression over South America during the November 3, 2021, geomagnetic storm","authors":"Gilda de Lourdes González","doi":"10.1007/s40328-024-00458-7","DOIUrl":null,"url":null,"abstract":"<div><p>Equatorial ionospheric irregularities have the potential to disrupt radio communications and satellite-based navigation. The influence of geomagnetic storms on these disturbances remains not fully understood, particularly in how they may initiate or inhibit the irregularities (also called Equatorial Plasma Bubbles, EPBs). Enhanced predictive capabilities require comprehensive studies of the ionosphere’s behavior, especially within the equatorial ionization anomaly (EIA) zone, where such irregularities are more pronounced. This study examines the effect of the November 3, 2021, geomagnetic storm on equatorial ionospheric irregularities in the F region over South America. We used data from multiple instruments, including GPS, GOLD, ICON, ionosondes, SuperDARN, and AMPERE, to analyze the role of the storm-time electric fields in the day-to-day dynamics of EPBs. We found that irregularities were suppressed during the storm’s main and recovery phases. Our results suggest that the inhibition of ionospheric irregularities in the F region may be associated with a combination of westward under-shielding penetration electric field and disturbance dynamo electric fields. The present study may contribute to advancing our understanding of the ionospheric response to geomagnetic storms and to develop better predictive models for space weather impacts.</p></div>","PeriodicalId":48965,"journal":{"name":"Acta Geodaetica et Geophysica","volume":"60 1","pages":"137 - 161"},"PeriodicalIF":1.4000,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Geodaetica et Geophysica","FirstCategoryId":"89","ListUrlMain":"https://link.springer.com/article/10.1007/s40328-024-00458-7","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
引用次数: 0

Abstract

Equatorial ionospheric irregularities have the potential to disrupt radio communications and satellite-based navigation. The influence of geomagnetic storms on these disturbances remains not fully understood, particularly in how they may initiate or inhibit the irregularities (also called Equatorial Plasma Bubbles, EPBs). Enhanced predictive capabilities require comprehensive studies of the ionosphere’s behavior, especially within the equatorial ionization anomaly (EIA) zone, where such irregularities are more pronounced. This study examines the effect of the November 3, 2021, geomagnetic storm on equatorial ionospheric irregularities in the F region over South America. We used data from multiple instruments, including GPS, GOLD, ICON, ionosondes, SuperDARN, and AMPERE, to analyze the role of the storm-time electric fields in the day-to-day dynamics of EPBs. We found that irregularities were suppressed during the storm’s main and recovery phases. Our results suggest that the inhibition of ionospheric irregularities in the F region may be associated with a combination of westward under-shielding penetration electric field and disturbance dynamo electric fields. The present study may contribute to advancing our understanding of the ionospheric response to geomagnetic storms and to develop better predictive models for space weather impacts.

2021年11月3日地磁风暴期间南美洲f区电离层异常抑制的多仪器分析
赤道电离层的不规则现象有可能破坏无线电通信和卫星导航。地磁风暴对这些扰动的影响仍未完全了解,特别是它们如何引发或抑制不规则性(也称为赤道等离子体气泡,EPBs)。增强预测能力需要对电离层的行为进行全面的研究,特别是在赤道电离异常(EIA)区内,这种不规则性更为明显。本研究考察了2021年11月3日地磁风暴对南美洲F地区赤道电离层不规则性的影响。我们使用多种仪器的数据,包括GPS、GOLD、ICON、离子探空仪、SuperDARN和AMPERE,来分析风暴时电场在epb日常动态中的作用。我们发现,在风暴的主要阶段和恢复阶段,不规则性被抑制了。我们的研究结果表明,F区电离层不规则性的抑制可能与向西屏蔽下穿透电场和扰动发电机电场的组合有关。目前的研究可能有助于提高我们对电离层对地磁风暴响应的理解,并为空间天气影响开发更好的预测模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Acta Geodaetica et Geophysica
Acta Geodaetica et Geophysica GEOCHEMISTRY & GEOPHYSICS-
CiteScore
3.10
自引率
7.10%
发文量
26
期刊介绍: The journal publishes original research papers in the field of geodesy and geophysics under headings: aeronomy and space physics, electromagnetic studies, geodesy and gravimetry, geodynamics, geomathematics, rock physics, seismology, solid earth physics, history. Papers dealing with problems of the Carpathian region and its surroundings are preferred. Similarly, papers on topics traditionally covered by Hungarian geodesists and geophysicists (e.g. robust estimations, geoid, EM properties of the Earth’s crust, geomagnetic pulsations and seismological risk) are especially welcome.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信