The GPS measured SITEC caused by the very intense solar flare on July 14, 2000
文献类型：期刊论文
| 作者 | Wan, WX; Liu, LB; Yuan, H; Ning, BQ; Zhang, SR |
| 刊名 | SPACE WEATHER
 |
| 出版日期 | 2005 |
| 卷号 | 36期号:12页码:2465-2469 |
| 关键词 | Space Weather Gps Total Electron Content Solar Flares Sudden Ionospheric Disturbances |
| ISSN号 | 0273-1177 |
| DOI | 10.1016/j.asr.2004.01.027 |
| 文献子类 | Article |
| 英文摘要 | This work studies the sudden increases in total electron content of the ionosphere caused by the very intense solar flare on July 14, 2000. Total electron content (TEC) data observed from a Global Positioning System (GPS) network are used to calculate the flare-induced TEC increment, delta TECf, and variation rate, dTEC(f)/dt. It is found that both dTEC(f)/dt and delta TECf are closely related with the solar zenith angles. To explain the observation results, we derived a simple relationship between the partial derivative of the flare-induced TEC, partial derivative TECf/partial derivative t, which is a good approximation for dTECf/dt, and the solar zenith angle chi as well as the effective flare radiation flux If, according to the well-known Chapman theory of ionization. The derived formula predicted that OTECf/partial derivative t is proportional to If and inverse proportional to Chapman function ch(chi). This theoretical prediction not only explains the correlation of dTEC(f)/dt and delta TECf with chi as shown in our TEC observation, but also gives a way to deduce I-f from TEC observation of GPS network. Thus, the present work shows that GPS observation is a powerful tool in the observation and investigation of solar flare effects on the ionosphere, i.e., the sudden ionospheric disturbances, which is a significant phenomenon of space weather. (c) 2005 COSPAR. Published by Elsevier Ltd. All rights reserved. |
| WOS关键词 | GEOMAGNETIC STORM ; NETWORK DATA/ ; RADIO |
| WOS研究方向 | Engineering ; Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000235183100040 |
| 出版者 | ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/65242]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wan, WX |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Software, Beijing 100080, Peoples R China 3.MIT, Haystack Observ, Westford, MA 01886 USA |
| 推荐引用方式 GB/T 7714 | Wan, WX,Liu, LB,Yuan, H,et al. The GPS measured SITEC caused by the very intense solar flare on July 14, 2000[J]. SPACE WEATHER,2005,36(12):2465-2469. |
| APA | Wan, WX,Liu, LB,Yuan, H,Ning, BQ,&Zhang, SR.(2005).The GPS measured SITEC caused by the very intense solar flare on July 14, 2000.SPACE WEATHER,36(12),2465-2469. |
| MLA | Wan, WX,et al."The GPS measured SITEC caused by the very intense solar flare on July 14, 2000".SPACE WEATHER 36.12(2005):2465-2469. |
入库方式： OAI收割
来源：地质与地球物理研究所
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