Japan Geoscience Union Meeting 2024

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P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM11] Space Weather and Space Climate

Mon. May 27, 2024 5:15 PM - 6:45 PM Poster Hall (Exhibition Hall 6, Makuhari Messe)

convener:Ryuho Kataoka(National Institute of Polar Research), Mary Aronne(NASA Goddard Space Flight Center), Yumi Bamba(National Institute of Information and Communications Technology), Antti Pulkkinen(NASA Goddard Space Flight Center)

5:15 PM - 6:45 PM

[PEM11-P13] The study of ionospheric storm in China on October 24-25, 2011

*Qingtao Wan1, Guanyi Ma1, Jinghua Li1, Jiangtao Fan1 (1. National Astronomical Observatories, Chinese Academy of Sciences)

Keywords:ionospheric storm, TEC

An ionospheric storm is studied with the GPS data from the Crustal Movement Observation Network of China (CMONOC) on October 24-25, 2011. The China region is divided into three latitude zones, which are the higher latitude zone (50oN), mid-latitude zone (40oN), and the lower latitude zone (30oN). There is a weak positive ionospheric storm at lower latitudes during 0-4:00 UT on October 25, but there is no obvious TEC enhancement after noontime. For the mid-latitude zone, a strong positive ionospheric storm occurred during the whole day of October 25. For higher latitude zones, a weak positive ionospheric storm is observed in the afternoon of October 25, but there is no TEC enhancement at noontime. Therefore, this ionospheric storm event has a strong impact on the mid-latitudes, while it has a weak impact in the morning and noon at lower latitudes, and only in the afternoon at higher latitudes.