A sea of fog in Qingdao

Updated: 2014-02-25 19:42 (chinadaily.com.cn)

A sea of fog in Qingdao

Advection fog near Qingdao, East China's Shandong province, on Feb 25. Advection fog occurs when the wind blows moist air over a cool surface. It is most common at sea.[Photo/icpress.cn]

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