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Alternative TitleRieger-type Periodic Phase Analysis of Sunspot Areas in the Northern and Southern Hemispheres Using Empirical Mode Decomposition
刘伟行1; 钱雅文1; 邓林华2; 冯松1
Source Publication天文研究与技术(Astronomical Research & Technology)
Contribution Rank第2完成单位
Indexed ByCSCD
Keyword太阳南北半球不对称 Rieger-type周期 相位

本文采用经验模式分解技术研究了从第12到第24太阳活动周的黑子面积数据中的Rieger-type周期,以及它们在南北半球上的相位关系。研究发现:(1) Rieger-type周期尺度以及时间尺度在两个半球上是不一样的,从而导致了半球分布的不对称性;(2)平均Riegertype周期在北半球上的周期长度略大于南半球上的;(3)占主导地位半球的Rieger-type周期的相位不一定是超前的,半球Rieger-type周期尺度相近的也并不一定是相关性强的。 

Other Abstract

Empirical mode decomposition (EMD) technique is used to study the Rieger-type cycle in the sunspot area data from the 12th to 24th solar cycles and their phase relations in the northern and southern hemispheres. It is found that: (1) the Rieger-type cycle scale and the time scale are different in the two hemispheres, which leads to the asymmetry of the hemispheric distribution; (2) the average Rieger-type cycle length in the northern hemisphere is slightly longer than that in the southern hemisphere; (3) the phase of the dominant hemisphere is not necessarily ahead of time. The hemispherical Rieger-type with similar cycle scales is not necessarily a strong correlation.

Funding Project国家自然科学基金资助项目[11463003] ; 国家自然科学基金资助项目[11873089] ; 国家自然科学基金资助项目[11763004] ; 云南省应用基础研究计划重点项目[2018FA035] ; 中国科学院太阳活动重点实验室开放课题[KLSA201715] ; 中国科学院太阳活动重点实验室开放课题[KLSA201709]
Funding Organization国家自然科学基金资助项目[11463003,11873089,11763004] ; 云南省应用基础研究计划重点项目[2018FA035] ; 中国科学院太阳活动重点实验室开放课题[KLSA201715,KLSA201709]
Subject Area太阳与太阳系
MOST Discipline Catalogue理学::天文学
Citation statistics
Document Type期刊论文
Corresponding Author冯松
Recommended Citation
GB/T 7714
刘伟行,钱雅文,邓林华,等. 基于经验模式分解的太阳南北半球黑子面积的Rieger-type周期相位分析[J]. 天文研究与技术(Astronomical Research & Technology),2018.
APA 刘伟行,钱雅文,邓林华,&冯松.(2018).基于经验模式分解的太阳南北半球黑子面积的Rieger-type周期相位分析.天文研究与技术(Astronomical Research & Technology).
MLA 刘伟行,et al."基于经验模式分解的太阳南北半球黑子面积的Rieger-type周期相位分析".天文研究与技术(Astronomical Research & Technology) (2018).
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