Stratosphere

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 Earth's surface.

Characteristics of the Stratosphere

• Ozone Layer: The stratosphere contains the ozone layer, which absorbs and scatters the solar ultraviolet (UV) radiation coming from the sun.
• Temperature: Unlike the troposphere, the temperature in the stratosphere generally increases with altitude due to the absorption of UV radiation by the ozone layer.
• Stratospheric Winds: The stratosphere is characterized by strong, steady winds that flow in a mostly eastward direction. The polar vortex is a prominent stratospheric wind pattern.

Importance of the Stratosphere

The stratosphere plays a crucial role in protecting life on Earth by absorbing the harmful UV radiation. The ozone layer within the stratosphere helps to shield the planet from the damaging effects of excessive UV exposure, which can cause skin cancer, cataracts, and other health problems in humans, as well as harm ecosystems and marine life.

Study Tips

1. Understand the composition of the stratosphere and the role of the ozone layer in protecting the Earth from UV radiation.
2. Learn about the temperature changes with altitude in the stratosphere and the reasons behind these changes.
3. Study the major wind patterns and circulation within the stratosphere, including the polar vortex and its significance.
4. Explore the impact of human activities on the stratosphere, such as the depletion of the ozone layer due to the release of certain chemicals.

By mastering the concepts and characteristics of the stratosphere, you will gain a deeper understanding of Earth's atmosphere and the environmental factors that influence our planet.

[Stratosphere] Related Worksheets and Study Guides:

• The AtmosphereEarth Science • High School
• Earth's AtmosphereScience • Sixth Grade