天气预报 > 其他 > 拉萨为什么又称为日光城
拉萨为什么又称为日光城
更新时间: 2020-09-25 00:00:00  

由于拉萨市平均海拔为3658米,大气层薄且空气密度小,水汽含量少,加之空气中含尘量小,云量少,其大气透明度十分良好。拉萨年平均年日照总时数多达3005、3小时,平均每天有8小时15分钟的太阳照射时间,比同纬度的东部地区大约多了百分之五十,比四川盆地大约多了两倍,因此拉萨便有日光城之称.

关键词: 拉萨 为什么 称为 日光

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