Abnormal response of ionospheric irregularities in the eastern Pacific region during a great magnetic storm in April 2023

IF 3.2 3区地球科学 Q2 ASTRONOMY & ASTROPHYSICS

Advances in Space Research Pub Date : 2026-07-01 Epub Date: 2026-02-11 DOI:10.1016/j.asr.2026.02.029

Sheping Shang, Jiankui Shi, Maosheng He, Zhengwei Cheng, Guojun Wang, Zheng Wang

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引用次数: 0

Abstract

Using the multiple ground-based/space-based observations, an abnormal response of ionospheric irregularities in the eastern Pacific region during the recovery phase of the great magnetic storm on 24 April 2023 was analyzed. The ground-based GPS observations exhibited ionospheric irregularities occurred from night to day, lasting for over ten hours, with the longest exceeding 14 h, especially near the magnetic equatorial region. SWARM satellites detected significant plasma bubble/disturbance structures near sunset and in the morning when crossing the low latitude and equatorial region from the western Americas to the eastern Pacific. The satellites (C2E1-C2E5) of COSMIC-2 detected the strong ionospheric bubbles and their quasi periodic structures when crossing the low latitude region from the eastern Pacific to the western Americas (−180° to −60°), which occurred from sunset to daytime, lasting up to 10–14 h. The enhanced eastward electric field and the seed disturbance may be main factors for the occurrence of ionospheric irregularities in the eastern Pacific region during the recovery phase of magnetic storm on 24th.

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2023年4月一次大磁暴期间东太平洋电离层异常的异常响应

利用地基/天基多重观测资料，分析了2023年4月24日大磁暴恢复阶段东太平洋地区电离层异常的异常响应。地面GPS观测显示，电离层异常现象从夜间到白天都有发生，持续时间超过10小时，最长超过14小时，特别是在磁赤道区附近。SWARM卫星在日落附近和早晨从美洲西部到东太平洋穿越低纬度和赤道地区时，探测到明显的等离子体气泡/扰动结构。COSMIC-2卫星（C2E1-C2E5）在从东太平洋到西美洲（−180°~−60°）穿越低纬度区域时，探测到强烈的电离层气泡及其拟周期结构，这些气泡从日落到白天发生，持续时间长达10 ~ 14 h。东向电场的增强和种子扰动可能是24日磁暴恢复阶段东太平洋地区电离层异常发生的主要因素。

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来源期刊

Advances in Space Research 地学天文-地球科学综合

CiteScore

5.20

自引率

11.50%

发文量

800

审稿时长

5.8 months

期刊介绍： The COSPAR publication Advances in Space Research (ASR) is an open journal covering all areas of space research including: space studies of the Earth''s surface, meteorology, climate, the Earth-Moon system, planets and small bodies of the solar system, upper atmospheres, ionospheres and magnetospheres of the Earth and planets including reference atmospheres, space plasmas in the solar system, astrophysics from space, materials sciences in space, fundamental physics in space, space debris, space weather, Earth observations of space phenomena, etc. NB: Please note that manuscripts related to life sciences as related to space are no more accepted for submission to Advances in Space Research. Such manuscripts should now be submitted to the new COSPAR Journal Life Sciences in Space Research (LSSR). All submissions are reviewed by two scientists in the field. COSPAR is an interdisciplinary scientific organization concerned with the progress of space research on an international scale. Operating under the rules of ICSU, COSPAR ignores political considerations and considers all questions solely from the scientific viewpoint.