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Modeling the responses of the middle latitude ionosphere to solar flares

文献类型:期刊论文

作者Le, Huijun; Liu, Libo; Chen, Bin; Lei, Jiuhou; Yue, Xinan; Wan, Weixing
刊名JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
出版日期2007-09-01
卷号69期号:13页码:1587-1598
关键词mid-latitude ionosphere modeling and forecasting flares
英文摘要In this paper, we investigate the solar flare effects of the ionosphere at middle latitude with a one-dimensional ionosphere theoretical model. The measurements of solar irradiance from the SOHO/Solar EUV Monitor (SEM) and GOES satellites have been used to construct a simple time-dependent solar flare spectrum model, which serves as the irradiance spectrum during solar flares. The model calculations show that the ionospheric responses to solar flares are largely related to the solar zenith angle. During the daytime most of the relative increases in electron density occur at an altitude lower than 300 km, with a peak at about 115 km, whereas around sunrise and sunset the strongest ionospheric responses occur at much higher altitudes (e.g. 210 kin for a summer flare). The ionospheric responses to flares in equinox and winter show an obvious asymmetry to local midday with a relative increase in total electron content (TEC) in the morning larger than that in the afternoon. The flare-induced TEC enhancement increases slowly around sunrise and reaches a peak at about 60 min after the flare onset. ((c) 2007 Elsevier Ltd. All rights reserved.
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences
研究领域[WOS]Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences
关键词[WOS]SUDDEN FREQUENCY DEVIATIONS ; BASTILLE-DAY FLARE ; EUV IRRADIANCE ; GPS ; MIDLATITUDE ; VARIABILITY ; FORMULATION ; REGIONS
收录类别SCI
语种英语
WOS记录号WOS:000249811300008
公开日期2015-10-13
源URL[http://ir.wipm.ac.cn/handle/112942/7913]  
专题武汉物理与数学研究所_2011年以前论文发表(包括2011年)
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China
4.Natl Ctr Atmospher Res, High Altitude Observ, Boulder, CO 80301 USA
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Le, Huijun,Liu, Libo,Chen, Bin,et al. Modeling the responses of the middle latitude ionosphere to solar flares[J]. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,2007,69(13):1587-1598.
APA Le, Huijun,Liu, Libo,Chen, Bin,Lei, Jiuhou,Yue, Xinan,&Wan, Weixing.(2007).Modeling the responses of the middle latitude ionosphere to solar flares.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,69(13),1587-1598.
MLA Le, Huijun,et al."Modeling the responses of the middle latitude ionosphere to solar flares".JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 69.13(2007):1587-1598.

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来源:武汉物理与数学研究所

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