【24h】

THE LOST SUNSPOT CYCLE: REANALYSIS OF SUNSPOT STATISTICS

机译:失去的太阳黑子周期:太阳黑子统计的分析

获取原文

摘要

We have recently suggested (Usoskin et al., 2000) that one low sunspot cycle was possibly lost in 1790s, and argued (Usoskin et al., 2002) that the existence of such a cycle does not contradict with available solar proxies, like auroral observations and cosmogenic isotopes. However, some arguments based on a statistical analysis of sunspot activity have been presented against the lost cycle (Krivova et al., 2002). Since the consequences of a new cycle are significant for solar cycle studies, it is important to try to estimate the probability of such a cycle to exist. Here we present the results of a rigorous statistical analysis of all available sunspot observations around the suggested additional cycle minimum in 1792-1793. We show that the level of sunspot activity in 1792-1793 is statistically similar to that in the minimum phase, but significantly different from that in the mid-declining or maximum phases. Using the estimated uncertainties we also calculate new, weighted annual values of group sunspot numbers in 1790-1796 which show a clear minimum in 1792-1793 and a maximum in 1794-1795, supporting the idea of an additional weak cycle in 1790's.
机译:我们最近建议(Usoskin等,2000),一个低的太阳黑子周期可能会在1790年代丢失,并争论(Usoskin等,2002),这种循环的存在与可用的太阳能代理相矛盾,如极光观察和美容同位素。然而,已经提出了基于SunSpot活动的统计分析的一些论据,以丢失丢失的循环(Krivova等,2002)。由于新循环的后果对于太阳循环研究具有重要意义,因此尝试估计存在这种循环的可能性非常重要。在这里,我们在1792年至1793年提出了关于所有可用的SunSpot观测的严格统计分析的结果。我们表明,1792年至1793年的太阳黑子活动水平与最小阶段的统计学相似,但与中衰减或最大阶段的显着不同。利用估计的不确定性,我们还在1790-1796中计算了新的加权年度的年度Sunspot编号,在1792年至1793年显示了明确的最低限度,最多在1794年至1795年最多,支持1790年的额外弱循环的想法。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号