山东春季极端低温与前冬北大西洋海温的关系
徐玮平, 孟祥新, 顾伟宗, 伯忠凯

Relationship between extremely low temperature in spring in Shandong Province and North Atlantic SST in preceding winter
XU Weiping, MENG Xiangxin, GU Weizong, BO Zhongkai
表2 山东春季极端低温事件发生频率序列各IMF分量的周期和方差贡献率
Tab.2 The period and variance contribution rate of IMF components of occurrence frequency series of extremely low temperature event in spring in Shandong
IMF分量 周期/a 方差贡献率/%
IMF1 3 39.6
IMF2 6 15.0
IMF3 19 6.4
IMF4 29 8.5