Stratosphere

Definition

The stratosphere is the layer of Earth's atmosphere located above the troposphere and below the mesosphere. It contains a high concentration of ozone, which absorbs most of the Sun's harmful ultraviolet (UV) radiation.

Related terms

Ozone Layer:

A region within the stratosphere where ozone concentrations are highest, acting as a natural sunscreen for life on Earth.

Troposphere:

The lowest layer of Earth's atmosphere where weather occurs and we live. It extends from the surface up to about 10 kilometers (6 miles) in altitude.

Mesosphere: The layer above the stratosphere where temperatures decrease with increasing altitude. It is known for its meteors burning up upon entry into this layer.