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4 0 3 . 0 7

4 0 3 . 0 7. Air Masses. AIR MASS. 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. CLASSIFICATION. Air masses are classified by moisture and temperature:. Continental Dry c

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4 0 3 . 0 7

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  1. 4 0 3 . 0 7 Air Masses

  2. AIR MASS 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.

  3. CLASSIFICATION Air masses are classified by moisture and temperature: • Continental Dry c • Maritime Moist m • Arctic Cold A • Polar Moderate P • Tropic Hot T

  4. CONTINENTALARCTIC (cA) • Form over the artic • Remains over land as it moves south • Dry and cold • Very low tropopause

  5. MARITIMEARCTIC (mA) • Form in the arctic • Spends short time over North Pacific or North Atlantic Oceans • Moist and cold • Low tropopause

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

  7. MARITIMETROPICAL (mT) • Forms over Southern Pacific and Southern Atlantic Oceans • Causes fog that effects Atlantic Provinces • Moist and hot • High tropopause

  8. Confirmation Stage NOTE: You must use the buttons in the Confirmation Stage

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

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

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

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

  13. Flying Scholarship Program That answer iscorrect. Let's move on...

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

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

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

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

  18. Flying Scholarship Program That answer iscorrect. Let's move on...

  19. Cold Air Mass • Inherently stable but heating from below creates instability, • Turbulent, • Good visibility, • Cumuliform clouds, • Shower type precipitation, • Thunderstorms may occur.

  20. Warm Air Mass • Stability • Smooth air • Poor visibility • Stratiform clouds • Steady type precipitation

  21. 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.

  22. HEIGHT cA mA mP mT NORTH POLE EQUATOR

  23. Confirmation Stage NOTE: You must use the buttons in the Confirmation Stage

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

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

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

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

  28. Flying Scholarship Program That answer iscorrect. Let's move on...

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

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

  31. Flying Scholarship Program That answer iscorrect. Let's move on...

  32. Meteorology Air Masses 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!

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