Correlation Function Analysis between Sunspot Cycle Amplitudes and Rise Times

被引：22
|
作者：
Du, Zhanle [1 ]
Wang, Huaning [1 ]
Zhang, Liyun [1 ]
机构：
[1] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
来源：
SOLAR PHYSICS | 2009年 / 255卷 / 01期
关键词：
Sunspots; statistics; Solar cycle; models; SOLAR-ACTIVITY RECONSTRUCTION; NUMBERS; SOLAR-CYCLE-24; EXTREMA; MINIMUM; LENGTH; SIZE;
D O I：
10.1007/s11207-009-9317-x
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The running cross-correlation coefficient between solar-cycle amplitudes and rise times at a certain cycle lag is found to vary in time, when using the smoothed monthly-mean sunspot group numbers available for 1610 -aEuro parts per thousand 1995. It may be negative or positive for different periods of time. The Waldmeier effect (in which the rise times decrease with amplitude) is also found to be very weak for some cycles. This result represents an observational constraint on solar-dynamo models and can help us better understand the long-term evolution of solar activity.
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页码：179 / 185
页数：7
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