The atmosphere temperature difference, you know

It is well known that the earth is covered by a thick layer of the atmosphere. The atmosphere air density decreases with height, the higher the air is thinner. The thickness of the atmosphere at about 1000 kilometers above, but there is no clear boundaries, into the troposphere and the stratosphere, and warming the middle layer and layer and the mesosphere, above is interstellar space again. Troposphere in the lowest level of the atmosphere, close to the surface of the earth, and its thickness is about 10 to 20 kilometers, cloud, fog, rain and other phenomena have occurred in this layer, there is also the most solid impurities. This layer of air temperature decreased with increasing of height, rising roughly every 1000 meters, 5 ~ 6 ℃ temperature is dropping. Above the troposphere is the stratosphere, also called the stratosphere, about 20 to 50 km away from the surface of the earth, the air is stable, smooth air flow. Very little dust and water vapor in the stratosphere, and under 30 km is the stratosphere, the temperature in - About 55 ℃, the temperature is constant, the temperature within 30 km and 50 km slightly increases with the increase of height. Above the stratosphere is the middle tier, about 50 to 85 km away from the surface of the earth, the air here is thin, prominent characteristics is rapidly decreased with temperature increases with height, the vertical convection air. Middle tier is the warm layer above, about 100 to 800 km above earth's surface, is when the sun, the most prominent feature of the ultraviolet ray in sunlight is absorbed by the oxygen atoms of a large number of the layer, so the temperature is very high. Dissipation in the warm layer above for charged particles. Temperature is very high, can amount to thousands of degrees.