NSSC OpenIR  > 空间科学部
Possible Explanation of the Different Temporal Behaviors of Various Classes of Sunspot Groups
Gao, Peng-Xin; Li, Ke-Jun; Li, Fu-Yu; Gao, PX (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China.; Gao, PX (reprint author), Chinese Acad Sci, Ctr Astron Mega Sci, Beijing 100012, Peoples R China.; Gao, PX (reprint author), Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China.
Department空间科学部
Source PublicationSOLAR PHYSICS
2017
Volume292Issue:9Pages:124
ISSN0038-0938
Language英语
KeywordMethods: Data Analysis Sun: Activity Sun: Sunspots
AbstractIn order to investigate the periodicity and long-term trends of various classes of sunspot groups (SGs), we separated SGs into two categories: simple SGs (A/U <= 4.5, where A represents the total corrected whole spot area of the group in millionths of the solar hemisphere (msh), and U represents the total corrected umbral area of the group in msh); and complex SGs (A/U > 6.2). Based on the revised version of the Greenwich Photoheliographic Results sunspot catalogue, we investigated the periodic behaviors and long-term trends of simple and complex SGs from 1875 to 1976 using the Hilbert-Huang Transform method, and we confirm that the temporal behaviors of simple and complex SGs are quite different. Our main findings are as follows. i) For simple and complex SGs, the values of the Schwabe cycle wax and wane, following the solar activity cycle. ii) There are significant phase differences (almost antiphase) between the periodicity of 53.50 +/- 3.79 years extracted from yearly simple SG numbers and the periodicity of 56.21 +/- 2.92 years extracted from yearly complex SG numbers. iii) The adaptive trends of yearly simple and complex SG numbers are also quite different: for simple SGs, the values of the adaptive trend gradually increase during the time period of 1875 - 1949, then they decrease gradually from 1949 to 1976, similar to the rise and the maximum phase of a sine curve; for complex SGs, the values of the adaptive trend first slowly increase and then quickly increase, similar to the minimum and rise phase of a sine curve.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6149
Collection空间科学部
Corresponding AuthorGao, PX (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China.; Gao, PX (reprint author), Chinese Acad Sci, Ctr Astron Mega Sci, Beijing 100012, Peoples R China.; Gao, PX (reprint author), Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China.
Recommended Citation
GB/T 7714
Gao, Peng-Xin,Li, Ke-Jun,Li, Fu-Yu,et al. Possible Explanation of the Different Temporal Behaviors of Various Classes of Sunspot Groups[J]. SOLAR PHYSICS,2017,292(9):124.
APA Gao, Peng-Xin,Li, Ke-Jun,Li, Fu-Yu,Gao, PX ,Gao, PX ,&Gao, PX .(2017).Possible Explanation of the Different Temporal Behaviors of Various Classes of Sunspot Groups.SOLAR PHYSICS,292(9),124.
MLA Gao, Peng-Xin,et al."Possible Explanation of the Different Temporal Behaviors of Various Classes of Sunspot Groups".SOLAR PHYSICS 292.9(2017):124.
Files in This Item:
File Name/Size DocType Version Access License
20172929124.pdf(745KB)期刊论文作者接受稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Gao, Peng-Xin]'s Articles
[Li, Ke-Jun]'s Articles
[Li, Fu-Yu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Gao, Peng-Xin]'s Articles
[Li, Ke-Jun]'s Articles
[Li, Fu-Yu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Gao, Peng-Xin]'s Articles
[Li, Ke-Jun]'s Articles
[Li, Fu-Yu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.