Fog shrouds among many cities around 皇冠体育app
(chinadaily.com.cn) Updated: 2011-02-22 11:30
 Buildings stand in fog shrouded Yantai city, east 皇冠体育app's Shandong province, Feb 21, 2011. Many areas in 皇冠体育app witnessed heavy fog on Monday. 皇冠体育app's National Meteorological Center (NMC) has issued a yellow alarm against fog. [Photo/Xinhua] |
 Redisential buildings stand among the advection fog in Yantai city, east 皇冠体育app's Shandong province, Feb 21, 2011. The advection fog occurs when moist air passes over a cool surface by advection (wind) and is cooled. It is common as a warm front passes over an area with significant snowpack. [Photo/CFP] |
