nerc.ac.uk

The High Latitude Ionospheric Response to the Major May 2024 Geomagnetic Storm: A Synoptic View

Themens, David R.; Elvidge, Sean; McCaffrey, Anthony; Jayachandran, P. T.; Coster, Anthea; Varney, Roger H.; Galkin, Ivan; Goodwin, Lindsay V.; Watson, Chris; Maguire, Sophie; Kavanagh, Andrew J. ORCID: https://orcid.org/0000-0001-7360-7039; Zhang, Shun‐Rong; Goncharenko, Larisa; Bhatt, Asti; Dorrian, Gareth; Groves, Keith; Wood, Alan G.; Reid, Ben. 2024 The High Latitude Ionospheric Response to the Major May 2024 Geomagnetic Storm: A Synoptic View. Geophysical Research Letters, 51 (19). 10.1029/2024GL111677

Before downloading, please read NORA policies.
[thumbnail of Open Access]
Preview
Text (Open Access)
© 2024. The Author(s).
Geophysical Research Letters - 2024 - Themens - The High Latitude Ionospheric Response to the Major May 2024 Geomagnetic.pdf - Published Version
Available under License Creative Commons Attribution 4.0.

Download (8MB) | Preview

Abstract/Summary

The high latitude ionospheric evolution of the May 10‐11, 2024, geomagnetic storm is investigated in terms of Total Electron Content and contextualized with Incoherent Scatter Radar and ionosonde observations. Substantial plasma lifting is observed within the initial Storm Enhanced Density plume with ionospheric peak heights increasing by 150–300 km, reaching levels of up to 630 km. Scintillation is observed within the cusp during the initial expansion phase of the storm, spreading across the auroral oval thereafter. Patch transport into the polar cap produces broad regions of scintillation that are rapidly cleared from the region after a strong Interplanetary Magnetic Field reversal at 2230UT. Strong heating and composition changes result in the complete absence of the F2‐layer on the eleventh, suffocating high latitude convection from dense plasma necessary for Tongue of Ionization and patch formation, ultimately resulting in a suppression of polar capscintillation on the eleventh.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1029/2024GL111677
ISSN: 0094-8276
Additional Keywords: May 2024 geomagnetic storm, ionosphere, GNSS, high latitudes, superstorm, polar cap
Date made live: 02 Oct 2024 14:54 +0 (UTC)
URI: https://nora.nerc.ac.uk/id/eprint/538159

Actions (login required)

View Item View Item

Document Downloads

Downloads for past 30 days

Downloads per month over past year

More statistics for this item...