| Week 13 |
25 Nov - 1 Dec 2024 |
| Monday (D1) |
Finish Homework from previous week.
Be sure your name, student number, and HW# are at top of every page.
Deadline: Electronically submit your HW by the start of class, 2 pm Monday. |
| Morning |
| Midday |
| 2 PM |
Class:
- Turn in HW.
- Discussion & interaction on topics from last week (bring your clicker).
- Show videos and weather maps of typical and extreme extratropical cyclones.
- Discuss cyclogensis processes.
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Topic: Extratropical Cyclones - Part 2: Cyclogenesis - Mountain Lee & Continuity (Rossby Wave) Effects
Textbook sections S.Ch13.p443 (bottom third) - 446 , 451 - 453 (top third),
Learning Goals
At the end of this section, you should be able to:
- Justify why divergence aloft is necessary for cyclogenesis.
- Demonstrate how jet-stream meander and the associated troughs and ridges can create the needed divergence aloft.
- Explain where surface lows form relative to troughs in the jet stream.
- Describe how lee cyclogenesis works, and explain why it is so important to weather in N. America.
- Relate vertical velocity w to omega ω .
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| Evening |
Readings:
- S.Ch13. p454 - 456 (top 2/3) and p463 - 467.
Warm-up Questions:
Do quiz W13 D2 online on Canvas. |
Topic: Extratropical Cyclones - Part 3: Cyclogenesis - Jet Streaks & Thermodynamic effects.
Textbook pages: p454 - 456 (top 2/3), p463-467, .
Learning Goals
At the end of this section, you should be able to:
- Explain what a jet streak is, and describe how jet-streak characteristics can create the needed divergence aloft.
- Qualitatively interpret the terms in the net pressure tendency equation.
- Explain how thermodynamic effects such as condensation and latent heating can cause decreases of surface pressure (i.e., cause cyclogenesis).
- List where in the world these thermodynamic effects frequently occur, and explain why.
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| Tuesday (D2) |
| Morning |
| Midday |
| Evening |
| 10 PM |
Deadline to finish warm-up Qs. |
| Wed (D3) |
. |
| Morning |
| Midday |
| 2 PM |
Class:
- Discussion & interaction on topics from readings (bring your clicker).
- Keynote slide show of hurricanes.
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| Evening |
Readings:
- S.Ch16. Sections 16.1 through 16.3
Warm-up Questions:
Do quiz W13 D4 online on Canvas |
Topic: Hurricane Characteristics, Structure, Evolution
.
Learning Goals
At the end of this section, you should be able to:
- Describe the size and components of hurricanes.
- Categorize hurricanes, cyclones, and typhoons into their proper oceans.
- Describe the trigger mechanisms for hurricanes.
- Explain how hurricanes intensify, and what controls their movement.
- Relate the Saffir-Simpson wind scale to winds and destructiveness.
- Explain why hurricanes can't cross or form at the equator.
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| Thurs (D4) |
| Morning |
| Midday |
| Evening |
| 10 PM |
No warm-up Qs. |
| Friday (D5) |
. |
| Morning |
| Midday |
| 2 PM |
Class:
- Discussion & interaction on topics from readings (bring your clicker).
- Keynote slide show of hurricanes - part 2.
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evening
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| Saturday(D6) |
End-of-Week Numerical Homework Exercises.
(Due at start of Monday's class.)
Homework 13:
S.Ch13 (use spreadsheet for all):
A3f , A7f , A14f , A16f.
S.Ch16: A3f (assume flow around a low-pressure center) , A5f (for flow around a high), A6f, A8f, A13f, A14f(x).
... Pre-readings: S.Ch16. Sections 16.4 through 16.6 (except p623).
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Learning Goals
At the end of this section, you should be able to:
- Apply topics covered earlier this week to compute number answers & infer their significance.
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| Sunday (D7) |
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