About This Chapter
Air Distribution and Movement - Chapter Summary and Learning Objectives
This chapter will teach you about weather fronts, wind belts and jet streams among other topics related to air distribution and movement. You'll learn about cyclones and monsoons and find out how different types of air masses affect the weather. By the end of this chapter, you should be able to:
- Explain the difference between the single-cell and three-cell models of general circulation.
- Discuss the formation of El Nino and La Nina.
- Differentiate amongst various types of winds and breezes.
- Identify types of fronts, including cold, warm, stationary and occluded fronts and dry lines.
|Atmospheric Circulation & its Relation to Scale & Observation||Define atmospheric circulation. Describe the concept of scale and observation as they relate to atmospheric circulation.|
|The Single-Cell Model of General Circulation||Describe the single-cell model of general circulation.|
|The Three-Cell Model of General Circulation||Describe the three-cell model of general circulation, including the Hadley cell and the Ferrel and Polar cells.|
|Semi-Permanent Pressure Cells & Their Effects||Describe semi-permanent pressure cells and their effects.|
|Understanding Weather Fronts: Types & Their Effect on Weather||Describe fronts dividing air masses and their effect on weather.|
|Identifying the Global Wind Patterns of the Wind Belts||Identify and describe the wind patterns of the three wind belts.|
|Understanding Jet Streams||Describe what jet streams are, why they exist and where the midlatitude jet stream can be found. Also, discuss the polar front.|
|Rossby Waves & Their Influences on Cyclonic Activity||Describe what Rossby waves are and how they influence cyclonic activity.|
|Description of Monsoons & Monsoonal Circulations||Discuss what monsoons are and list two monsoonal circulations.|
|Air Conditions of Different Types of Winds||Describe air conditions of various types of winds, including Foehn, Chinook, Santa Ana and katabatic.|
|Air Conditions of Different Types of Breezes||Discuss air conditions of various breezes, including sea, land, valley and mountain.|
|The Relationship Between El Nino & La Nina||Describe the relationship between El Nino and La Nina.|
|The Characteristics of El Nino, La Nina & Walker Circulation||Describe El Nino, La Nina and the Walker circulation.|
|The Pacific Decadal Oscillation & its Similarity to El Nino||Describe Pacific Decadal Ossillation and its similarity to El Nino.|
|Arctic Oscillation and North Atlantic Oscillation||Describe Arctic Oscillation and North Atlantic Oscillation.|
|Types of Air Masses & Their Effect on Weather||Identify and describe the effect of air masses on weather.|
|Identifying & Describing Types of Weather Fronts||Identify and describe various types of fronts.|
1. Atmospheric Circulation: Scale & Observation
Atmospheric circulation is responsible for the weather you experience. This lesson will explain how atmospheric circulation works and then it will explore how it impacts the weather in a couple of different locations.
2. The Single-Cell Model of General Circulation
Have you ever wondered how air circulates in the atmosphere? This lesson will explain an early model of air circulation, the single-cell model. It will also look at some of the problems with this early model of air circulation.
3. The Effects of Semi-Permanent Pressure Cells
Although semi-permanent pressure cells don't sound particularly exciting, they actually are. This lesson will describe how pressure systems develop and examine four semi-permanent pressure cells.
4. Understanding Weather Fronts: Types & Their Effect on Weather
In this video lesson you will learn about how air masses with different characteristics create weather fronts. You will also identify the different types of fronts, as well as what type of weather occurs along them.
5. 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.
6. 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.
7. Rossby Waves & Cyclonic Activity
Chances are you've never heard of a Rossby wave, but these waves are important players in the weather patterns you observe on a daily basis. This lesson will explore Rossby waves and then we'll explain how Rossby waves are related to cyclones.
8. 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.
9. Air Conditions of Different Types of Wind
Winds are all the same, right? Actually no. This lesson will examine different types of wind including the Chinook, a type of foehn wind, and the Santa Ana winds, a type of katabatic wind.
10. Air Conditions of Different Types of Breezes
Breezes are light winds, but did you know there are different types of breezes? This lesson will examine sea, land, valley and mountain breezes, explaining how they form and where you can find them.
11. 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.
12. El Niño, La Niña & Walker Circulation
This lesson will explore how the Walker Circulation works, as well as El Niño and La Niña. It will include how these weather patterns impact weather patterns around the world.
13. The Pacific Decadal Oscillation & El Niño
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.
14. Arctic Oscillation & North Atlantic Oscillation
You've probably never thought much about the Arctic Oscillation or the North Atlantic Oscillation, but these weather phenomena impact global climates. This lesson explores each oscillation and describes the weather patterns associated with them.
15. 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.
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