The atmosphere of Earth can be divided into semi-horizontal layers or spheres, based on properties such as temperature variation, gas components, or electrical properties. While air pressure and air density always decrease with altitude in the atmosphere, it is not the case for temperature. Four temperature-varying layers of Earth's atmosphere can be distinguished: the troposphere, the stratosphere, the mesosphere, and the thermosphere. In the troposphere and the mesosphere, the temperature decreases with altitude, but in the stratosphere and thermosphere, the temperature increases with altitude (called temperature inversion). Between these layers, the temperature remains the same in the tropopause (between the troposphere and the stratosphere), the stratopause (separating the stratosphere and the mesosphere), and the mesopause (between the mesosphere and the thermosphere).

The stratosphere is the second lowest layer of Earth's atmosphere, located between the troposphere and mesosphere. The stratosphere and the mesosphere together are...