What change occurs in temperature at the tropopause?

At the tropopause, which is the boundary between the troposphere and the stratosphere, a significant change in temperature occurs. The temperature in the troposphere typically decreases with increasing altitude, which means that as you ascend through the troposphere, it gets colder. However, at the tropopause, this trend shifts dramatically.

It is at this boundary that the temperature stabilizes and then begins to increase in the stratosphere due to the absorption of ultraviolet radiation by the ozone layer. Therefore, the situation represents an abrupt change, where the cold temperatures of the troposphere give way to the relatively warmer temperatures of the stratosphere. This characteristic is critical for understanding atmospheric layers and their properties, as well as for various flight operations and weather patterns.