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

被引：1
|
作者：
Zhang, Kedeng [1 ]
Wang, Hui [1 ]
Liu, Jing [2 ]
Song, Huimin [1 ]
Xia, Hao [1 ]
机构：
[1] Wuhan Univ, Sch Earth & Space Sci & Technol, Wuhan, Peoples R China
[2] Shandong Univ, Sch Space Sci & Phys, Weihai, Peoples R China
来源：
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS | 2025年 / 130卷 / 01期
基金：
中国国家自然科学基金;
关键词：
MIDLATITUDES; PROPAGATION; GENERATION; STORM; WINDS;
D O I：
10.1029/2024JA033257
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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 degrees 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.
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页数：10
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