天气预报 > 其他 > 风速3米一秒是几级风
风速3米一秒是几级风
更新时间: 2020-11-03 00:00:00  

风速每秒三米是轻风,轻风的范围:1.6-3.3m/s。风力等级分类如下表:风速是指空气在单位时间内流动的水平距离。根据风对地上物体所引起的现象将风的大小分为13个等级,称为风力等级,简称风级。

风速就是风的前进速度。相邻两地间的气压差愈大,空气流动越快,风速越大,风的力量自然也就大。所以通常都是以风力来表示风的大小。风速的单位用每秒多少米或每小时多少公里来表示。而发布天气预报时,诀是“从一直到九,乘2各级有”。

关键词: 风速

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