Characteristics of stratosphere

It is just the opposite of the troposphere located below it and close to the surface. The troposphere is cold at the top and hot at the bottom. In mid-latitudes, the stratosphere is located at a height of 1-5 kilometers from the surface, while in the polar regions, this layer starts at about 8 kilometers from the surface. Above the troposphere, up to the layer 5 kilometers above the sea level, the airflow mainly moves horizontally, and the convection phenomenon is weakened. This atmosphere is called the stratosphere, also known as the stratosphere.

There is basically no water vapor here, it is clear and cloudless, and there is little weather change, so it is suitable for airplane navigation. At the height of 2~3 kilometers, oxygen molecules form the ozone layer under the action of ultraviolet rays, which acts as a barrier to protect the creatures on earth from the attack of ultraviolet rays and high-energy particles from the sun.

Extended information:

Application of stratosphere:

In tropical areas, commercial passenger planes usually cruise at an altitude of 1 kilometers above the ground, that is, at the bottom of the stratosphere. This is to avoid the airflow generated by convection in the troposphere. However, the airflow encountered during the cruise phase of passenger aircraft is mostly due to the phenomenon of convective transcendence in the troposphere.

similarly, gliders usually glide on an ascending warm air stream, which will stop when it rises from the troposphere to the stratosphere. In this way, a height limit is set for gliders all over the world. Even if some gliders use lee wave to fly higher, they will take the glider into the stratosphere.

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