新疆阿勒泰上空现“日晕”奇观-快科技-科技改变生活

新疆阿勒泰上空现“日晕”奇观

刘艺
2017年01月16日 14:35
0

@央视新闻微博报道，昨日，新疆阿勒泰克兰大峡谷上空现“日晕”奇观，太阳周围形成一个七彩光环，搭配地面的银装素裹，甚是美丽。

日晕也叫圆虹，是日光通过卷层云时，受到冰晶的折射或反射而形成的一种大气光学现象。当光线射入卷层云中的冰晶后，经过两次折射，分散成不同方向的各色光。

俗话说“日晕三更雨，月晕午时风”，其意思就是若出现日晕的话，夜半三更将有雨，若出现月晕，则次日中午会刮风。

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