Work

The Quasi‐Periodic Nighttime Traveling Ionospheric Disturbances on 13 May 2024 During the Recovery Phase of a SuperStorm

Year: 2025

Type: article

Abstract: On 10–14 May 2024, one of the most powerful geomagnetic storms occurred, with the Dst less than −400 nT. Quasi‐periodic nighttime traveling ionospheric disturbances (TIDs) observed during the recovery phase on 13 May are explored using the detrended total electron content (dTEC) and the neutral wind measurements from Fabry‐Perot interferometers (FPI) at Millstone station. At middle latitudes, the strong westward plasma drifts drove an obvious nighttime ionospheric trough at 52° magnetic latitude. Equatorward of this middle‐latitude trough, quasi‐periodic TIDs in dTEC were found, with a period of 1 hr and phase speeds ranging from 305.6 to 649.3 m/s. Based on the AE index, the periodic energy deposition during substorms might be responsible for the quasi‐periodic oscillations of TIDs. Fortunately, FPI‐measured horizontal winds at Millstone showed a quasi‐periodic oscillation as well, indicating their potential key role.

Source: Journal of Geophysical Research Space Physics

DOI: 10.1029/2024ja033257

Authors: Kedeng Zhang, Hui Wang, Jing Liu, Huimin Song, Hao Xia

Institutions: Wuhan University, Shandong University

Language: English

Topic: Ionosphere and magnetosphere dynamics

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: National Natural Science Foundation of China, Natural Science Foundation of Hubei Province, Japan Society for the Promotion of Science, National Key Research and Development Program of China