Why is the higher the altitude, the closer to the sun, but the lower the temperature?
First of all, from the distance to the sun, the average distance between the earth and the sun is about 65.438+0.5 billion kilometers, and the height of Mount Everest, the highest mountain on the earth, is over 8,000 meters. Before the "distance between the sun and the earth", the height difference at different positions on the earth's surface is almost negligible. So why is the temperature low at high altitude? Every kilometer of the earth's surface increases, the temperature will drop by about 6℃.
The reason for this phenomenon is that the energy radiated by the sun is not directly provided to the atmosphere, that is, the sun directly heats the atmosphere. Solar radiation first irradiates the earth's surface, causing the surface temperature to rise, that is, "the sun warms the earth." In the process of temperature rising, the ground also releases energy in the form of infrared rays. We call it ground radiation. Carbon dioxide and water vapor in the atmosphere strongly absorb infrared rays, so the ground heats the atmosphere. We call it "global warming atmosphere", which means that the ground is the direct heat source in the troposphere atmosphere. The higher the altitude, the farther away from the ground, the less ground radiation and the lower the temperature.
We know that the atmosphere plays a very important role, that is, constant temperature, which means that the thinner the air is, the shorter the temperature will be maintained. On the contrary, the greater the air density, the longer the temperature is maintained. Therefore, although Mount Everest is highly close to the sun, its temperature is very low. Simply put, the higher the altitude, the thinner the air. Therefore, no atmosphere can maintain the temperature caused by solar radiation, so the higher the altitude, the colder the weather.