![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/1/14/Arctic_Oscillation_II.svg/langzh-min-nan-640px-Arctic_Oscillation_II.svg.png&w=640&q=50)
Pak-ke̍k chín-tōng
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Pak-ke̍k chín-tōng (北極振動; Arctic oscillation, AO) he̍k-chiá pak-ke̍k chìn-tōng (北極震盪) sī Pak-ke̍k ê khì-ap kap pak-poàn-kiû tiong-hūi-tō͘ só͘-chāi ê khì-ap chhut-hiān tian-tò piàn-tōng ê hiān-siōng.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/1/14/Arctic_Oscillation_II.svg/175px-Arctic_Oscillation_II.svg.png)