Flying Scholarship Assignment #5 – Meteorology (127)+1 1. What factors determine the weather in an air mass? (3) 2. What are the four main types of air masses found in Canada? (4) 3. What is a front? What determines the weather at a front? (2) 4. Complete the following chart: (12) Type of Front Movement of cold air Slope Type of Cloud Type of Precipitation Wind Shift with Frontal Passage Warm Front Cold Front 5. What is the sequence of clouds one would expect to see if a warm front was approaching? (5) 6. What is a TROWAL? (1) 7. What three factors must be present for a cloud to form? (3) 8. What are the five lifting agents that cause cloud formation? (5) 9. What is fog? (3) 10. Describe the following types of fog: (9) a. Radiation Fog – (4) b. Advection Fog –(1) c. Upslope Fog – (2) d. Steam Fog – (2) 11. What are three dangers that a thunderstorm presents to a pilot? (3) 12. What three conditions are required for a thunderstorm to form? (3) 13. What are the three possible lifting agents for a thunderstorm? (3) 14. What are three characteristics of the initial stage of a thunderstorm? (3) 15. At what stage in the thunderstorms do downdrafts begin in the middle of the cell? (1) 16. At what point in the thunderstorm does the “anvil” appear? (1) 17. Name and describe the two main types of thunderstorms. (8) 18. What is a squall line? (1) 19. What is the danger of turbulence in a thunderstorm? What magnitudes can the up- and downdrafts reach? (2) 20. If you must fly around a thunderstorm, to which side should you pass? (1) 21. What are three phenomena that can reduce visibility? (3) 22. Would you expect the visibility to be better in stable air or unstable air? (1) 23. Define the following: (5) a. Flight Visibility – b. Slant Range Visibility – c. Ground Visibility – d. Prevailing Visibility – e. RVR – 24. How does rime ice form? Why is it dangerous to a pilot? (5) 25. How does clear ice form? Why is it dangerous to a pilot? (7) 26. What is the difference between the formation and appearance of Hoar frost and frozen dew? (4) 27. What are three methods of ice protection for an aircraft? (3) 28. What is turbulence? (1) 29. Name and briefly describe the four types (causes) of turbulence. (8) 30. Name and briefly describe the four classes (strengths) of turbulence. (8) 31. What are three signs that unsettled weather is approaching? (3) 32. What are three signs that steady precipitation may occur? (3) 33. What are three signs that the weather may be clearing? (3) Bonus (1): If the temperature on the ground is 25°C and the dew point is 10°C, what altitude will the bases of the clouds be at?