>为什么气候科学日晒总额除以4 ?有两个原因,每个半日晒的影响:在任何时候,只有一半的地球被太阳。这个因素的另一个名字是“白天”与“夜间”。——在任何时候,地球表面积的半球被太阳2 \πr ^ 2美元,而美元$ r是地球的半径。但是,半球太阳辐射的横截面的面积是一个圆半径为r,美元的\πr ^ 2美元,这个半球的面积的一半。>吗?你为什么需要平均出太阳的能量在整个地球在同一时间不是会发生什么?地球快速旋转,所以* *是* *发生了什么。如果地球是绕太阳公转,地球会有一方,会非常热,地球的一边会非常冷。这并不会发生什么。 If the Earth rotated once per month (which is what our Moon does do), the sunlit side would eventually come close to being in thermal equilibrium with the incoming sunlight while the dark side would cool to much colder temperatures than are experienced anywhere on the face of the Earth. That also is not what happens. Even the sunlit Sahara does not get as hot as do equatorial regions of the Moon, and even South Pole does not get as cold as do portions of the Moon. The periods of daytime heating by sunlight and periods of nighttime cooling by the lack of sunlight are both far too brief to bring those portions of the Earth into thermal equilibrium with the sunlight at daytime or with the 2.7K cosmic microwave background radiation at nighttime.