Stratosphere: Explanation and Study Guide

The stratosphere is the second major layer of Earth's atmosphere, located above the troposphere and below the mesosphere. It extends from about 10 to 50 kilometers (6 to 31 miles) above the Earth's surface. The stratosphere is characterized by the presence of the ozone layer, which plays a crucial role in protecting life on Earth by absorbing the majority of the sun's harmful ultraviolet (UV) radiation.

Key Features of the Stratosphere:

• Ozone Layer: The stratosphere contains a higher concentration of ozone compared to the other layers of the atmosphere. This ozone layer absorbs and scatters the majority of the Sun's harmful ultraviolet (UV) radiation, protecting living organisms on Earth.
• Temperature Inversion: Unlike the troposphere, where temperature decreases with altitude, the stratosphere experiences a temperature inversion, where the temperature increases with altitude. This is due to the absorption of UV radiation by the ozone layer.
• Aviation: Commercial jet aircraft fly in the lower stratosphere due to its stability and absence of weather-related turbulence.

Study Guide:

1. Composition and Structure:

Explain the composition of the stratosphere and its structure in relation to the layers of the Earth's atmosphere. Include the significance of the ozone layer.

2. Temperature Profile:

Describe the temperature changes within the stratosphere, including the presence of a temperature inversion, and its impact on atmospheric dynamics and weather patterns.

3. Role in Protecting Earth:

Discuss the critical role of the stratosphere, particularly the ozone layer, in protecting life on Earth from harmful UV radiation. Explain the potential consequences of ozone depletion.

4. Aviation and Weather:

Explore the significance of the stratosphere for commercial aviation and its impact on weather-related phenomena.

[Stratosphere] Related Worksheets and Study Guides:

• Earth's AtmosphereScience • Sixth Grade