天气晴好，蓝天白云天天在线，以致于“广东东说念主最近齐是云朵保藏家”上了热搜。如斯靓丽的安闲，再配上沿途“倒挂彩虹”，会是多么养眼？

7月8日傍晚，有网友在河源紫金拍摄到沿途五彩斑斓的弧，宛如“太空的浅笑”。征象部门施展注解说，这种情景叫作“环天顶弧”，需要“天时地利东说念主和”智商看到。

据征象部门先容，环天顶弧也被称为“倒挂彩虹”，是太阳光从水平素向，通过卷云里的冰晶折射而酿成。7月8日，河源上空冻结高度在5000多米，表层吹偏东风，基层吹偏南风。本日影响广东东部的东风云，其所佩戴的水汽来到河源上空。冻结高度以上的水汽，就像水进了雪柜结成冰不异，结成了冰晶。冰晶不才落经由中，因为各层风力不同，被拖拽酿成了卷云。网友在稳健的场地、恰好的技术昂首拍摄时，太阳光正好从水平素向通过卷云内的冰晶折射进相机里，就留住了这一抹“太空的浅笑”。

征象部门暗示，在这样多条目的碰巧下拍下好意思景，不错说是很是运气。（广州日报）

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