What is the Stratosphere?

Our planet’s silent atmospheric layer. The stratosphere is a layer within Earth’s atmosphere, located directly above the troposphere. Aircraft typically fly within this layer, where the air is much calmer and windless. Additionally, the ozone layer, which blocks harmful rays from the Sun, is found within the stratosphere.

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The air surrounding Earth is composed of layers. The stratosphere is the second of these layers. It begins at approximately 10 kilometers above sea level and extends up to 50 kilometers. Thus, it is far from the surface but has not yet reached outer space. Most aircraft fly in the troposphere below, but some specialized aircraft can reach the stratosphere.

The stratosphere is one of the layers that make up Earth’s atmosphere. It lies directly above the troposphere, the lowest layer of the atmosphere, and extends from about 10 kilometers to 50 kilometers in altitude.

Because the stratosphere contains less air, breathing is not possible here. Clouds form very rarely, as the air is dry and stable. The most important feature of the stratosphere is the ozone layer it contains. This layer protects humans, animals and plants by blocking harmful solar radiation.

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In the stratosphere, air generally moves horizontally, and temperature increases with altitude. This is the opposite of what occurs in the troposphere below. Scientists study the regular patterns of winds and their effects on climate in this layer to better understand weather phenomena.

- Provides protection: The ozone layer prevents harmful radiation from reaching Earth.

- Influences climate: Changes in the stratosphere can affect weather patterns and climate on the Earth’s surface.

- Important for scientific research: Space research, weather modeling and climate change studies require an understanding of the stratosphere.

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Researchers use specialized instruments and satellites to study changes in the stratosphere. By examining phenomena such as aerosols, winds and temperature variations, they gather information about the future of the climate.