%0 Journal Article
%T A study on the problem of 100ka cycles of astroclimatology<br>天文气候学10万年问题的研究
%A LIN Zhen-Shan
%A WANG Shu-Guang
%A <br>林振山
%A 汪曙光
%J 地球物理学报
%D 2004
%I 
%X We develop an analysis method of empirical mode decomposition (EMD) applicable to nonlinear and unstable data. Our purpose is to study the periodical change and the response of the climate system to solar radiation on a obit scale in Pleistocene time. Our result shows that eccentricity band signal is much larger than previously estimated, i.e. 1% on solar radiations, and comparable with the precession and obliquity band signals. We should reconsider the role of solar radiations in the formation and maintenance of quaternary ice sheet cycles.
%K Solar radiation
%K 100ka
%K Empirical mode decomposition
%K Eccentricity<br>太阳辐射
%K 10万年
%K 经验模态分解
%K 偏心率
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=3747ACF61C2AE7FB&yid=D0E58B75BFD8E51C&vid=F4B561950EE1D31A&iid=B31275AF3241DB2D&sid=E151839C3C081609&eid=997CCAFE43D4D200&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=7&reference_num=20