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白令海海冰变化及其影响研究综述
王维波1,2(), 张俊鹏1,2, 贾村1,2, 张小波3
The change and influence of sea ice over Bering Sea: a review
Weibo WANG1,2(), Junpeng ZHANG1,2, Cun JIA1,2, Xiaobo ZHANG3

图8. PC1 (a)和PC2 (b)时间序列以及其经验模态分解后前2项时间序列

Fig. 8. The time series and its first two Intrinsic Mode Function (IMF1~IMF2) of PC1 (a) and PC2 (b)