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astronomical
>
shifting snow
Contents
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No. 1
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English Expression
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No. 1
高吹雪
(blowing snow)
指较强气流将地面雪卷起,吹扬高度达2米以上,水平能见度小于10公里。
高吹雪
。发生在山区降雪后几小时。它由强升压气流形成的狂风引起 ,能将山脊或迎风坡的积雪吹扬并越过山岭 , 吹扬高度可达30m以上。雪粒以悬浮飘扬形式 ,顺山坡、槽、谷倾泻直下 , 遮天蔽日 , 犹如大雾弥漫山间。
高吹雪
发生时 , 能见度极小 , 危害重 , 但持续时间短 , 主要发生在山区。
English Expression
: shifting snow, drifting snow storm