Which layer is immediately above the troposphere?

The layer that is immediately above the troposphere is the stratosphere. This atmospheric layer is crucial in understanding weather patterns and the overall structure of Earth's atmosphere. The troposphere is where weather conditions and clouds form, extending from the Earth's surface up to an average altitude of about 8 to 15 kilometers (5 to 9 miles), depending on the latitude and time of year.

Above the troposphere lies the stratosphere, which is characterized by a temperature increase with altitude due to the presence of the ozone layer, which absorbs and scatters ultraviolet solar radiation. This layer extends from the top of the troposphere to about 50 kilometers (31 miles) above the Earth's surface. The stability and stratification of the stratosphere also play a significant role in atmospheric phenomena, making it an important area for both meteorology and aviation.

The layers above and below the stratosphere—such as the mesosphere, thermosphere, and exosphere—serve different functions and have distinct characteristics, but they do not immediately follow the troposphere in altitude.