北京上空出现壮观“鱼鳞云”（图）
2010
07/03
17:29
4711
7月2日傍晚，北京市区天空点缀着形似鱼鳞的白云，一排排一列列，这种现象随着夜幕来临渐渐消失。据悉，“鱼鳞云”又叫“透光高积云”，民间有“天现鱼鳞云，不雨风也颠”的说法，出现这种云彩，是冷空气到来前，云层逐渐压低、加厚，由于高层气流不稳定，形成“鱼鳞云”，之后往往会下阵雨。
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随州门户网
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