A Complete Collection of 100000 Whys
Fav十万个为什么
为什么冰雹只在夏天出现？
冰雹只在夏天出现主要是由于强烈的太阳辐射、湿热空气上升以及高空冷空气共同作用的结果。
1、强烈的太阳辐射。夏季太阳辐射强，地面温度高，使得近地面空气受热膨胀上升，形成不稳定的大气层结，为冰雹的形成创造了条件。
2、湿热空气上升。夏季地面湿热空气迅速上升，遇到高空冷空气时，湿热空气中的水汽凝结并冻结，形成冰雹的核心，并在强烈上升气流的推动下不断增大。
3、高空冷空气。夏季高空常有弱冷空气活动，与地面湿热空气相遇时，形成“上冷下暖”的强烈对流，这种对流为冰雹的形成提供了必要的环境条件。
总结：冰雹只在夏天出现是由于强烈的太阳辐射、湿热空气上升以及高空冷空气共同作用的结果。
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