地理科学 ›› 2009, Vol. 29 ›› Issue (5): 709-714.doi: 10.13249/j.cnki.sgs.2009.05.709

• 论文 • 上一篇    下一篇

树轮资料(1511~1954)太阳活动的多尺度分析——EMD方法的应用

张真真, 林振山, 杜建丽, 刘会玉   

  1. 南京师范大学地理科学学院, 江苏 南京 210046
  • 收稿日期:2008-06-25 修回日期:2009-08-11 出版日期:2009-09-20 发布日期:2009-09-20
  • 作者简介:张真真(1983- ),山东省青岛莱西市人,女,硕士研究生,主要研究方向第四纪古气候多尺度变化。E-mail:zzhenzhen1982@126.com
  • 基金资助:
    高等学校博士学科点专项科研基金课题(20060139018)资助。

Analysis on multi-scale cycles of solar activity with the data of tree-ring(1511-1954) -Application of EMD

ZHANG Zhen-Zhen, LIN Zhen-Shan, DU Jian-Li, Liu Hui-Yu   

  1. College of geography science, Nanjing Normal University, Nanjing, Jangsu 210046
  • Received:2008-06-25 Revised:2009-08-11 Online:2009-09-20 Published:2009-09-20

摘要: 用EMD对Stuiver等提供的树轮14C资料进行分析,结果为:①得到太阳活动的准3、6、11、22、44、110、200、300 a的周期;从趋势项中可以得到准600 a甚至更长的周期波动;②可以判断太阳活动经典的极小期,与公认的极小期有一定的滞后性。从树轮14C含量的变化趋势中可以判断从1954~2100年的太阳活动变化逐渐变强,从2100~2350年太阳活动逐渐开始变弱;③从每个尺度周期波动的时变特征中可以得到,即使在太阳活动的极小期,太阳活动依然存在频率和强度不同的周期波动。

Abstract: In this article, Stuiver’s 14C tree-ring data is dealt with EMD, and the results showed that: 1) The classic quasi cycles 3a, 6a, 11a, 22a, 44a, 110a, 178a, 296a of solar activities are gained; even longer cycle fluctuations may exist in the residual trend(RES) 2) the Maunder Minimum, the Dalton Minimum, and the Spoerer Minimum can be analysed, and all these gained minima present a delay than those recognized ones. In addition, the changes of 14C content in the tree-ring in the trend can be determined the information that solar activity may become strong from 1954 to 2100; and from 2100 to 2350 the solar activity may gradually become weak.3),even in a minimum, solar activity still exist different cycles with variable frequency and intensity from the fluctuations characteristics of each time-scale.

中图分类号: 

  • P532