Ionospheric Response to the 10 May 2024 Geomagnetic Storm as Observed in GNSS Radio Occultation Electron Density

IF 2.6 2区 地球科学 Q2 ASTRONOMY & ASTROPHYSICS
Wonseok Lee, Guiping Liu, Dong L. Wu, Douglas E. Rowland
{"title":"Ionospheric Response to the 10 May 2024 Geomagnetic Storm as Observed in GNSS Radio Occultation Electron Density","authors":"Wonseok Lee,&nbsp;Guiping Liu,&nbsp;Dong L. Wu,&nbsp;Douglas E. Rowland","doi":"10.1029/2024JA033489","DOIUrl":null,"url":null,"abstract":"<p>We investigate the spatiotemporal and altitude variations in ionospheric F-region electron density in response to the 10 May 2024 superstorm, the most significant geomagnetic disturbance in two decades. The unprecedented sampling by ∼12,000 electron density profiles each day from the COSMIC-2, Spire and FengYun-3 radio occultation observations provided a nearly global and full local time coverage of this event. During the main phase of the storm, F-region (200–500 km in altitude) electron density decreased globally, with peak electron density height increasing during daytime and decreasing at nighttime in low latitude. Concurrently, topside electron density increased in the low-latitude during the daytime. Additionally, the broadening of the equatorial ionospheric anomaly (EIA) width provides strong evidence of the storm-induced electric field's effect during the storm main phase. Subsequently, the EIA crests merged and remained for about 21 hr during the end of main phase and the recovery phase, suggesting a possible storm-induced equatorial wind impact on the ionosphere. Furthermore, electron density maps reveal hemispheric asymmetry in the storm response. Electron density decreases more effectively in the northern hemisphere than in the southern hemisphere, indicating a significant role of seasonal global circulation during the geomagnetic storm.</p>","PeriodicalId":15894,"journal":{"name":"Journal of Geophysical Research: Space Physics","volume":"130 3","pages":""},"PeriodicalIF":2.6000,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Geophysical Research: Space Physics","FirstCategoryId":"89","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1029/2024JA033489","RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
引用次数: 0

Abstract

We investigate the spatiotemporal and altitude variations in ionospheric F-region electron density in response to the 10 May 2024 superstorm, the most significant geomagnetic disturbance in two decades. The unprecedented sampling by ∼12,000 electron density profiles each day from the COSMIC-2, Spire and FengYun-3 radio occultation observations provided a nearly global and full local time coverage of this event. During the main phase of the storm, F-region (200–500 km in altitude) electron density decreased globally, with peak electron density height increasing during daytime and decreasing at nighttime in low latitude. Concurrently, topside electron density increased in the low-latitude during the daytime. Additionally, the broadening of the equatorial ionospheric anomaly (EIA) width provides strong evidence of the storm-induced electric field's effect during the storm main phase. Subsequently, the EIA crests merged and remained for about 21 hr during the end of main phase and the recovery phase, suggesting a possible storm-induced equatorial wind impact on the ionosphere. Furthermore, electron density maps reveal hemispheric asymmetry in the storm response. Electron density decreases more effectively in the northern hemisphere than in the southern hemisphere, indicating a significant role of seasonal global circulation during the geomagnetic storm.

求助全文
约1分钟内获得全文 求助全文
来源期刊
Journal of Geophysical Research: Space Physics
Journal of Geophysical Research: Space Physics Earth and Planetary Sciences-Geophysics
CiteScore
5.30
自引率
35.70%
发文量
570
×
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