A Complete Collection of 100000 Whys
Fav十万个为什么
为什么四川盆地多夜雨？
四川盆地多夜雨，主要是因为地形导致的上升气流、昼夜温差小以及云层保温作用。
1、地形导致的上升气流：四川盆地四周被高山环绕，中间低洼，暖湿气流进入盆地后受到山地抬升，形成云层，这些云层在夜间容易产生降雨。
2、昼夜温差小：盆地内空气湿度大，白天接近饱和状态，夜间温度稍有下降，水汽便凝结成雨，且夜雨使得昼夜温差进一步缩小。
3、云层保温作用：盆地内的云层在夜间起到保温作用，使得夜间温度下降缓慢，同时云层内部的暖湿气流上升并形成降雨。
总结：四川盆地多夜雨，主要是因为地形导致的上升气流、昼夜温差小以及云层保温作用。
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