High altitude weather

The higher the altitude, the lower the temperature. How cold is it at altitude10000m? After reading it, I gained knowledge.

The altitude of 65438+100000 meters is out of reach for ancient humans, but for modern humans, we can easily reach this altitude. At present, most civil aviation planes fly at an altitude of about 65438+100000 meters, because the airflow here is stable and not easily affected by weather conditions. When we sit in the plane and look out of the window, we see blue sky and white clouds, but after reading it, you will gain knowledge. Let's take a look together.

First of all, we should know that the higher the altitude, the lower the temperature and the thinner the air on the earth. This is because the atmospheric temperature mainly comes from ground radiation, and the closer it is to the ground, the hotter it gets. For example, the foot of the mountain will be hotter than the top of the mountain. The higher the altitude, the thinner the air is, and the less it is radiated by the ground, so the temperature is low. According to scientists' calculations, the temperature will drop by about 6℃ every time the altitude rises by 1000 meters. If it is at an altitude of 1000 meters, it will theoretically drop by 60℃.

We assume that the ground temperature is 30℃, so the altitude above 65438+100000 meters at this time is -30℃, which is still very cold. If people skydive at this height, they must wear thick warm clothes, otherwise they are likely to get frostbite. But when we sit in the plane, we can't feel the temperature outside at all, and we can't see that the plane surface will freeze. Then why?

In fact, the current aircraft design is already very exquisite. First of all, we can't feel the outside temperature, because the plane is equipped with air conditioning and heating. The air conditioner will be adjusted to the temperature suitable for human activities, and the pressurization system on the plane will slowly pressurize the plane to ensure that passengers in the plane can have a steady stream of oxygen inhalation. As for why the surface of the plane will not freeze, first of all, deicing devices are generally installed on the plane. Secondly, when the plane descends, a small part of the frozen surface will gradually melt with the increase of temperature, so there is no difference between when the plane finally lands and before taking off.

Finally, the headmaster concluded that the higher the altitude, the lower the temperature. On the contrary, the lower the altitude, the higher the temperature. For example, in Sichuan Basin, hot air cannot escape, so Chongqing is so hot. Every time the altitude rises 1000 meters, the temperature will drop by 6℃, and the altitude of 30,000 meters has reached 180℃. It is amazing that we humans can break through this height and fly to the universe.