How many layers is the sky divided into? What is the height of each floor?

five floors. They are troposphere, stratosphere, mesosphere, ionosphere and outer layer.

1. The average thickness of troposphere

is about 12km, and its thickness varies, with the thickness of 8km above the earth's poles and 17km above the equator. It is the densest layer in the atmosphere, which concentrates about 75% of the atmospheric mass and more than 9% of the water vapor mass.

2. Stratosphere

The stratosphere is located at a height of 1 to 5 kilometers from the surface. Located above the troposphere and below the escape layer. Stratosphere, also known as stratosphere, is a layer of the earth's atmosphere that is hot and cold. This layer is divided into different temperature layers, with the high temperature layer at the top and the low temperature layer at the bottom.

3. Mesosphere

The atmosphere between the stratosphere top and 85km. The ozone content in this layer is low, and at the same time, most of the solar short-wave radiation that can be directly absorbed by nitrogen and oxygen has been absorbed by the upper atmosphere, so the vertical decline rate of temperature is great and the convection movement is strong.

4. The ionosphere

is about 1 ~ 8km away from the earth's surface, and the whole earth's atmosphere over 6km is in a state of partial ionization or complete ionization. The ionosphere is a partially ionized atmospheric region, and the completely ionized atmospheric region is called magnetosphere.

5. The outer layer

is 1 kilometers away from the earth's surface. The temperature here is very high, reaching thousands of degrees; The atmosphere is extremely thin, and its density is one billionth of that at sea level.

Extended information

Sky shape: The sky has various manifestations, which are carrying the fastest light that human beings know, and it is the most primitive creative enlightener of human beings. Various forms are usually expressed by weather, which refers to the specific state of the atmosphere near the surface in a short time.

The weather phenomenon refers to various natural phenomena in the atmosphere, that is, the comprehensive expression of the spatial distribution of various meteorological elements in the atmosphere (such as temperature, pressure, humidity, wind, clouds, fog, rain, flash, snow, frost, thunder, hail, haze, etc.) in an instant.

the combination of many weather systems constitutes a large-scale weather situation, and constitutes the atmospheric circulation in the hemisphere and even the whole world. The weather system is always in the process of constant rebirth, development and extinction, and there are corresponding weather phenomena in different development stages.

Baidu Encyclopedia-Atmosphere

Baidu Encyclopedia-Sky