Sunspot groups at high latitude
文献类型：期刊论文
| 作者 | Li KJ(李可军)1,2 ; Gu XM(顾啸马)1,3; Xiang, FY4; Liu, XH5; Chen XK(陈学昆)1
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2000-10-01 |
| 卷号 | 317期号:4页码:897-901 |
| 关键词 | Sun : activity Sun : evolution sunspots |
| ISSN号 | 0035-8711 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Li, KJ (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | Data of sunspot groups at high latitude (greater than or equal to 35 degrees), from the year 1874 to the present (2000 January), are collected to show their evolutional behaviour and to investigate features of the yearly number of sunspot groups at high latitude. Subsequently, an evolutional pattern of sunspot group number at high latitude is given in this paper. Results obtained show that the number of sunspot groups of a solar cycle at high latitude rises to a maximum value about 1 yr earlier than the time of the maximum of sunspot relative numbers of the solar cycle, and then falls to zero more rapidly. The results also show that, at the moment, solar activity described by the sunspot relative numbers has not yet reached its minimum, In general, sunspot groups at high latitude have not appeared on the solar disc during the last 3 yr of a Wolf solar cycle. The asymmetry of the high latitude sunspot group number of a Wolf solar cycle can reflect the asymmetry of solar activity in the Wolf solar cycle, and it is suggested that one could further use the high latitude sunspot group number during the rising time of a Wolf solar cycle, maximum year included, to judge the asymmetry of solar activity over the whole solar cycle. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | NORTH-SOUTH ASYMMETRY ; SOLAR-ACTIVITY ; MAUNDER MINIMUM ; CYCLE ; NUMBER |
| 收录类别 | SCI |
| 原文出处 | http://mnras.oxfordjournals.org/content/317/4/897 |
| 语种 | 英语 |
| WOS记录号 | WOS:000089857200017 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6031]  |
| 专题 | 云南天文台_太阳物理研究组 |
| 作者单位 | 1.Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China 2.National Astronomical Observatories, Chinese Academy of Sciences, China 3.United Laboratory of Optical Astronomy, Chinese Academy of Sciences, Beijing 10080, China 4.Physical Department, Xiangtan University, Xiangtan 411105, China 5.Physical Department, Jiaozuo Education College, Jiaozuo 470021, China |
| 推荐引用方式 GB/T 7714 | Li KJ,Gu XM,Xiang, FY,et al. Sunspot groups at high latitude[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2000,317(4):897-901. |
| APA | Li KJ,Gu XM,Xiang, FY,Liu, XH,&Chen XK.(2000).Sunspot groups at high latitude.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,317(4),897-901. |
| MLA | Li KJ,et al."Sunspot groups at high latitude".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 317.4(2000):897-901. |
入库方式： OAI收割
来源：云南天文台
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