第23周太阳活动不对性分析

运用了二个太阳活动指数,即太阳黑子群数和黑子面积来分析第23周太阳活动的不对称性,文中引进了一个新概念“累计的不对称性”来描述太阳活动的不对称性分布,进一步通过计算两个半球上太阳活动指数的实际概率说明了太阳活动的不对称性。结果显示：（1）在第23周开始的前6年左右,太阳活动存在微弱的不对称性;（2）不同太阳活动现象或指数的不对称性,并不发生在同一活动周的同一时期。

Asymmetric Analysis of Solar Activity in Cycle 23

In this paper, two solar active index, the number of sunspot groups and sunspot areas are employed to analyze the asymmetry of N-S hemisphere of solar activity in cycle 23,and a new concept, "cumulative asymmetry" is proposed to describe the north-south asymmetry of solar activity. Further, the asymmetry of the N-S hemisphere of solar activity in cycle 23 has been clarified by calculating the actual probability of the hemispheric distribution of the two solar activity index. The result shows that (1) the weak hemispheric asymmetry is existent in cycle 23,(2)the northern hemisphere dominant or the southern hemisphere dominant is determined by the solar activity phenomenon and index.