3. Regional Gliding School A large section of the troposphere with uniform properties of temperature and moisture in the horizontal. An air mass may be several thousand miles across.

4. Regional Gliding School CLASSIFICATION ContinentalDry c MaritimeMoist m ArcticCold A PolarModerate P TropicHot T Air masses are classified by moisture and temperature:

5. Regional Gliding School CONTINENTAL ARCTIC (cA) Form over the artic Remains over land as it moves south Dry and cold Very low tropopause

6. Regional Gliding School MARITIME ARCTIC (mA) Form in the arctic Spends short time over North Pacific or North Atlantic Oceans Moist and cold Low tropopause

7. Regional Gliding School MARITIME POLAR (mP) Formed in the arctic Spends a longer time over Pacific/Atlantic Oceans Moist and cool Medium tropopause

8. Regional Gliding School MARITIME TROPICAL (mT) Forms over Southern Pacific and Southern Atlantic Oceans Causes fog that effects Atlantic Provinces Moist and hot High tropopause

9. Regional Gliding School NOTE: You must use the buttons in the Confirmation Stage

10. Regional Gliding School A B C D Cold Moderate Let's try a few review questions on Meteorology: Question #1 - What does the word “Arctic” mean in an air mass name? Cool Moist Meteorology Air Masses

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14. That answer is correct. Let's move on...

15. Regional Gliding School A B C D MA Ma Let's try a few review questions on Meteorology: Question #2 - What is the abbreviation for Maritime Arctic? mA ma Meteorology Air Masses

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20. Regional Gliding School Inherently stable but heating from below creates instability, Turbulent, Good visibility, Cumuliform clouds, Shower type precipitation, Thunderstorms may occur.

21. Regional Gliding School Stability Smooth air Poor visibility Stratiform clouds Steady type precipitation

22. Regional Gliding School Modification Air masses take on the characteristics of the surface over which they form but are modified, in whole or in part, as they move over different surfaces. If the modification is extensive the air mass may be given a new name.

23. HEIGHT NORTH POLEEQUATOR cAmAmPmT

24. Regional Gliding School NOTE: You must use the buttons in the Confirmation Stage

25. Regional Gliding School A B C D Sun Wind Let's try a few review questions on Meteorology: Question #3 - How are air masses modified? Precipitation Surfaces over which they pass Meteorology Air Masses

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28. I’m afraid that answer is incorrect Let's try again... Flying Scholarship Program

29. That answer is correct. Let's move on...

30. Regional Gliding School A B True False Let's try a few review questions on Meteorology: Question #4 - Unstable air is associated with cold air masses. Meteorology Air Masses

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32. That answer is correct. Let's move on...

33. Regional Gliding School Congratulations! You have now completed the Air Masses lesson of the Meteorology Module. Of course, this lesson is always available to you for future reference if required. You are now ready to move along to the next Meteorology lesson you have not completed or to any other module you wish. You can advance to the Self Test Module if you feel ready to challenge the final exam. Good Luck! Meteorology Air Masses