Influence of the initial shock speed excited by solar flares on shock arrival time prediction
文献类型：期刊论文
| 作者 | Luo Hao1,3; Chen Geng-Xiong1; Du Ai-Min1,4; Sun Wei2; Xu Wen-Yao1; Zhang Ying1; Zhao Xu-Dong1; Wang Yuan1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2011-08-01 |
| 卷号 | 54期号:8页码:1945-1952 |
| 关键词 | Haf Model Initial Shock Speed Shock Arrival Time Type Ii Radio Burst |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2011.08.001 |
| 文献子类 | Article |
| 英文摘要 | By using Hakamada-Akasofu-Fry (HAF) solar wind model, we simulated 48 solar flare events during Carrington Rotation 1981 to 1985 and compared the simulated shock arrival time with observations by satellites at 1 AU. It is found that the initial solar wind shock speed deduced from the metric Type II radio burst observations plays an important role in the shock arrival time prediction. The match between predicted and observed shock arrival times (SATs) was considerably improved by iteratively adjusting the initial shock speed. We obtained the adjustment factors as a function of the initial shock speed for different hemispheres by statistical analysis and applied them to adjust the initial shock speed driven by the solar flares which occurred in the following five Carrington rotations (1986 similar to 1990), the mean absolute error of the shock arrival time was reduced from 16 (15) hours to 12 (11) hours for the flare occurred on the western (eastern) hemisphere. This indicates that there can be significant improvements for the shock arrival time prediction by adjusting the initial shock speed using the statistical functions. |
| WOS关键词 | GEOMAGNETIC STORMS ; INTERPLANETARY SHOCKS ; APRIL 2001 ; WIND ; RADIO ; DISTURBANCES ; MODELS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000294516600001 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/73638]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Luo Hao |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ Alaska, Inst Geophys, Fairbanks, AK 99701 USA 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 4.Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo Hao,Chen Geng-Xiong,Du Ai-Min,et al. Influence of the initial shock speed excited by solar flares on shock arrival time prediction[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2011,54(8):1945-1952. |
| APA | Luo Hao.,Chen Geng-Xiong.,Du Ai-Min.,Sun Wei.,Xu Wen-Yao.,...&Wang Yuan.(2011).Influence of the initial shock speed excited by solar flares on shock arrival time prediction.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,54(8),1945-1952. |
| MLA | Luo Hao,et al."Influence of the initial shock speed excited by solar flares on shock arrival time prediction".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 54.8(2011):1945-1952. |
入库方式： OAI收割
来源：地质与地球物理研究所
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