文章基本信息

标题：Radiation Dose Nowcast for the Ground Level Enhancement on 10–11 September 2017
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作者：Ryuho Kataoka ; Tatsuhiko Sato ; Shoko Miyake 等
期刊名称：Space Weather
印刷版ISSN：1542-7390
出版年度：2018
卷号：16
期号：7
页码：917-923
DOI：10.1029/2018SW001874
语种：English
出版社：American Geophysical Union
摘要：A ground level enhancement event occurred on 10–11 September 2017, associated with an X8.2 solar flare on the western limb of the Sun. We report the results of our manually conducted nowcast using WArning System for AVIation Exposure to Solar energetic particles. The maximum radiation dose rate at a flight altitude of 12 km was estimated to be approximately 3 μSv/h, which is less than half of the dose rate due to galactic cosmic rays. We also discuss a possible quasi-parallel shock-acceleration mechanism that may have led to the exceptionally soft proton energy spectrum as ground level enhancement events.