Ch 20: Wind, Air Masses & ENSO in Atmospheric Circulation

About This Chapter

With this chapter, improve your understanding of global wind patterns, factors that affect the wind, monsoonal circulations, types of air masses and the effects these air masses have on weather.

Wind, Air Masses & ENSO in Atmospheric Circulation - Chapter Summary

The tools of this chapter will help you review what you know about the role of wind, air masses and ENSO in atmospheric circulations. Watch the lesson videos to get better understanding of global wind patterns, the factors that affect these patterns and these patterns' effects on weather. These lessons are taught by expert instructors who will help you prepare for questions about:

  • The three wind belts
  • Jet streams
  • Effects of pressure gradient forces, Coriolis effect and friction on wind patterns
  • Monsoonal circulations
  • El Nino, La Nina and the Pacific Decadel Oscillation
  • Types of air masses

Following these short, engaging lesson videos, complete the self-assessment quizzes to find out what information you didn't retain. Improve your knowledge of these topics by returning to the lessons. Use video tags to skip over the material you've already mastered, or try an alternative review of the material and read over the lesson transcripts.

7 Lessons in Chapter 20: Wind, Air Masses & ENSO in Atmospheric Circulation
Test your knowledge with a 30-question chapter practice test
The Global Wind Patterns of the Three Wind Belts

1. The Global Wind Patterns of the Three Wind Belts

You are familiar with wind, but did you know there are different wind belts depending on where you are on the earth? This lesson will examine the three main wind belts: polar easterlies, tropical easterlies and prevailing westerlies.

Jet Streams & the Polar Front

2. Jet Streams & the Polar Front

You've probably heard about jet streams during the news weather segment. But what is a jet stream? This lesson will explain how jet streams form, what they are and then will focus on the polar jet stream.

Factors That Affect Wind: Pressure Gradient Forces, Coriolis Effect & Friction

3. Factors That Affect Wind: Pressure Gradient Forces, Coriolis Effect & Friction

In this video lesson, you will learn about wind and some factors that affect it, such as air temperature and pressure, the Coriolis effect, and friction. By the end of this lesson, you will also understand how Earth's rotation plays a role in how winds travel.

Monsoons & Monsoonal Circulations

4. Monsoons & Monsoonal Circulations

Monsoons bring a seasonal change in weather to many parts of the world. This lesson will explore two monsoonal circulations and will also discuss how monsoons impact the people who experience them.

The Relationship Between El Nino & La Nina

5. The Relationship Between El Nino & La Nina

In this video lesson, you will learn about El Niño and La Niña. You will understand the differences between them, as well as some of their effects on both ocean waters and weather patterns on land.

Types of Air Masses & Their Effect on Weather

6. Types of Air Masses & Their Effect on Weather

Air masses affect weather in a number of different ways. In this lesson, you will learn about the different types of air masses found on Earth and how the movement of air masses creates changes in the weather.

The Pacific Decadal Oscillation & El Nino

7. The Pacific Decadal Oscillation & El Nino

Understanding the Pacific Decadal Oscillation, or the PDO, and El Niño allows scientists to better understand weather phenomenon. This lesson explores the PDO, as well as its similarities with El Niño and La Niña.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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