唐朝著名诗人李商隐在《夜雨寄北》诗中写道:“君问归期未有期,巴山夜雨涨秋池。何当共剪西窗烛,却话巴山夜雨时。”夜雨是指晚8时以后,到第二天早晨8时以前下的雨。“巴山”是指大巴山脉,“巴山夜雨”其实是泛指多夜雨的我国西南山地(包括四川盆地地区)。这些地方的夜雨量一般 Li Shangyin, a famous poet of the Tang Dynasty, wrote in his poem “Yeyu Sends Rain to the North”: “The gentleman asked the return date and the Bashan night rain rose up in the autumn pool. When He cut the west window candlestick, it was a nighttime rain in Bashan.” The night rain refers to After 8pm, it rained before 8 o’clock the next morning. “Bashan” refers to the Daba Mountains. “Bashan Night Rain” is actually a mountainous area in southwestern China (including the Sichuan Basin region), which refers to the night rain. The amount of night rain in these places is generally