A study of the early warning signals of abrupt change in the Pacific decadal oscillation
Wu Hao†a), b) 
, Hou Weib) , Yan Peng-Chengb), c) , Zhang Zhi-Senb), c) , Wang Kuod)
, Hou Wei
A study of the early warning signals of abrupt change in the Pacific decadal oscillation |
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Wu Hao†
, Hou Wei |
| Curves of PDO index sequence changing with time (The bars represents the value of the PDO index: red for positive, blue for negative; and, a black curve for the trend information extracted from moving average). |
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