Comparison of potential field solutions for Carrington Rotation 2144
文献类型：期刊论文
| 作者 | Hayashi, Keiji1,2; Yang, Shangbin1 ; Deng, Yuagyong1
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| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
 |
| 出版日期 | 2016-02-01 |
| 卷号 | 121期号:2页码:1046-1061 |
| 关键词 | solar corona magnetic field potential field |
| 英文摘要 | We examined differences among the coronal magnetic field structures derived with the potential field source surface (PFSS) model for Carrington Rotation 2144, from 21 November to 19 December 2013. We used the synoptic maps of solar photospheric magnetic field from four observatories, the Huairou Solar Observing Station (HSOS), Global Oscillation Network Group (GONG), Helioseismic Magnetic Imager (HMI), and Wilcox Solar Observatory (WSO). We tested two smoothing methods, Gaussian and boxcar averaging, and correction of unbalanced net magnetic flux. The solutions of three-dimensional coronal magnetic field are significantly different each other. An open-field region derived with HSOS data agrees best with the corresponding coronal hole observed by Solar Dynamics Observatories/Atmospheric Imaging Assembly, while HMI data yielded best agreements with the near-Earth OMNI database. The GONG data overall gave agreements as good as the HMI. The PFSS calculations using WSO data were least sensitive to the choices we examined in this work. Differences in PFSS solutions using different choices and parameters in smoothing imply that the photospheric magnetic field distributions with size of several degrees at midlatitude and low-latitude regions can be decisive, at least, in the examined period. To better determine the global solar corona, therefore, further evaluation of influences from compact bipolar magnetic field is needed. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000373002100008 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5350]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing, Peoples R China 2.Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan |
| 推荐引用方式 GB/T 7714 | Hayashi, Keiji,Yang, Shangbin,Deng, Yuagyong. Comparison of potential field solutions for Carrington Rotation 2144[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2016,121(2):1046-1061. |
| APA | Hayashi, Keiji,Yang, Shangbin,&Deng, Yuagyong.(2016).Comparison of potential field solutions for Carrington Rotation 2144.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,121(2),1046-1061. |
| MLA | Hayashi, Keiji,et al."Comparison of potential field solutions for Carrington Rotation 2144".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 121.2(2016):1046-1061. |
入库方式： OAI收割
来源：国家天文台
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