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Title
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Mission 4 - Lesson 5: The Saharan Air Layer
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Type
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Primary: Lesson Plan
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Operation
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Monster Storms
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Mission:
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Mission 4: The Hunt
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Subjects
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Science
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Grades
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5 | 6 | 7 | 8
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Keywords
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lesson plans, mission 4
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Duration
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00:00:00 (HH:MM:SS)
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Audience
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Teachers
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Created On
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8/13/2007
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From: Monster Storms Mission 4: The Hunt |
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Mission 4 - Lesson 5: The Saharan Air Layer Understand what the Saharan Air Layer is, and its effects on hurricanes. |
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Prepare |
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Time required: 45-60 minutes
- Prepare all materials for the lab found on page 79. A list of materials is found in the student edition on page 79.
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View
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The Hunt: At a Glance, Standards Alignment, and teaching tips and suggestions for all content in Mission 4. |
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View
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Transparencies to support Mission 4. |
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Motivate |
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- Write the words "Saharan Air Layer" on the board. In small groups, have students look at a map of the world and speculate what the SAL is and what it might have to do with the current study of hurricanes. Have students briefly present their ideas to the whole class.
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Teach |
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Instructions:
- Finish reading the article "Why Hurricanes Weaken" beginning with the last paragraph on page 77, and continuing on page 78. While reading, work with a partner to try to draw a diagram of what temperature inversion looks like.
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View
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Discover how high wind shear, moving over cooler ocean water or land, and a change to the moist air can cause a hurricane to weaken or decay. |
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Instructions:
- When students are finished with their drawings, show them the Temperature Inversion Chart found in the Teacher Resources on JMC. If necessary, have students modify their diagrams to reflect what actual temperature inversion looks like.
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a condition of the atmosphere during which a layer of warmer, less dense air lies above a layer of cooler, denser air |
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Instructions:
- After your class discussion, complete the lab: Saharan Air Layer found on page 79.
- When students finish the lab, have them look at the real-time images of the SAL at the NWS Central Pacific Hurricane Center referenced on page 78.
- For further extensions, set up stations where the students can complete both the extension on page 78 of the teacher's edition, and the teaching with inquiry activity on page 79.
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Could dust from the Sahara Desert have anything to do with hurricanes? Jason Dunion is trying to determine whether hot, dry, dusty air could influence the formation and the strength of Atlantic hurricanes. In this activity, you will build a model to investigate the Saharan Air Layer phenomenon. |
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To go with Mission 4, Lab 3. |
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Reflect And Assess |
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- For an assessment, modify your original diagrams of the SAL, modifying and including information you've learned through the extensions and the lab.
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Follow-up |
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- For homework, write a news article describing the SAL and its effects on hurricanes.
- Additionally, research periodically on the internet to track the progress of Jason Dunion's work and his research on the SAL.
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