为什么天上的云朵会变色

汇诚雅园这,要详细。
2025年04月06日 10:56
有1个网友回答
网友(1):

天上的云不时在改变形状,有时虽不易察觉,但过一会儿再抬头一看,云的形状大大改变了,甚至面目完全变了.
云的形状发生变化大致可以归纳为两种情况:
一种是云块本身的改变,它是由大气中的温度、湿度以及风的结构决定的,如由小块的积云发展成为七八千米厚的积雨云,这种云的腰部还可能在稳定层的下面伸出一些高积云或层积云来.再有如浓积云,在傍晚由于空气稳定下来了,上升气流减弱,会渐渐变成层积云.又如层积云由于对流加强,可变成堡状的积雨云.
另一种是由于原来的云移出天空,新的云移入我们的视野所造成的.像天空原来是透明的卷层云,以后卷层云移出天空,灰暗的高层云移入,只能看出太阳的位置;最后高层云有移出天空,又厚有暗的雨层云又移入天空,而且在雨层云的下部又出现碎云.这种天空中云不断增厚的现象,是暖锋将要移过本地所造成的.

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