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Training the World’s Best Aviators

Training the World’s Best Aviators. Welcome to. AVIATION WEATHER. 7 out of 10 Atmosphere & Airmasses, Pressure & Winds, Stability and Clouds 7 out of 10 Frontal Weather 7 out of 10 Weather Hazards 7 out of 10 Weather Reports & Forecasts

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Training the World’s Best Aviators

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  1. Training the World’s Best Aviators

  2. Welcome to... AVIATION WEATHER

  3. 7 out of 10 Atmosphere & Airmasses, Pressure & Winds, Stability and Clouds 7 out of 10 Frontal Weather 7 out of 10 Weather Hazards 7 out of 10 Weather Reports & Forecasts 7 out of 10 Weather Charts Avn Weather Exam –

  4. Why is weather important? Weather affects everything we do!

  5. Air temperature • Humidity • Clouds • Precipitation • Atmospheric Pressure • Wind What is weather? The state of the atmosphere with respect to temperature, moisture content, turbulence, and cloudiness.

  6. Terminal Learning Objective ACTION: Plan a flight for weather considerations CONDITION: Acting as an aviator and given an IFR or VFR flight mission and available weather information. STANDARD: In accordance with (IAW) Army Regulation (AR) 95-1, and Field Manual (FM) 1-230

  7. Enabling Learning Objective A ACTION: Identify the composition of the atmosphere and its effects on weather. CONDITION: Given pertinent information about the atmosphere. STANDARD: IAW FM 1-230 para 2-1 thru 2-2

  8. NITROGEN 78% OXYGEN 21% OTHER GASES Dry Air 1%

  9. Natural Air = Dry air + Condensation Nuclei and Water Vapor

  10. Enabling Learning Objective B ACTION: The student will identify the layers of the atmosphere, height, and in which layer weather occurs. CONDITION: Given pertinent information about the atmosphere. STANDARD: IAW FM 1-230 para 2-3

  11. Layers of Atmosphere • Troposphere • Tropopause • Stratosphere

  12. 25,000' Tropopause 60,000' Troposphere

  13. Stratosphere 25,000' Tropopause 60,000' Troposphere

  14. Enabling Learning Objective C ACTION: The student will identify the atmospheric circulation, Coriolis force, and the three-cell theory. CONDITION: Given pertinent information about the atmosphere. STANDARD: IAW FM 1-230 para 6-2, 3, 4

  15. Atmospheric circulation begins with uneven heating.

  16. H L L L H

  17. Uneven heating from the sun Atmospheric circulation is modified by…

  18. Uneven heating from the sun Coriolis Force – The apparent force caused by the unequal speed of rotation of the earth’s surface. This force deflects non-steerable bodies to the right in the Northern Hemisphere. Atmospheric circulation is modified by…

  19. Uneven heating from the sun Coriolis Force – The apparent force caused by the unequal speed of rotation of the earth’s surface. This force deflects non-steerable bodies to the right in the Northern Hemisphere. Tilt of the earth Atmospheric circulation is modified by…

  20. 3 3 H 2 2 L L H H H H 1 1 L L L H 1 H 1 H H L L H 2 2 3 3

  21. H L L L H H H H L L L L L H H H H L L H

  22. H L L L H H H H L L L L L H H H H L L Global Circulation H

  23. Local circulation discussed in future classes

  24. Enabling Learning Objective D ACTION: The student will identify the four types of heat transfer. CONDITION: Given pertinent information about heat energy. STANDARD: IAW FM 1-230 para 3-5

  25. RADIATION METHODS OF HEAT TRANSFER

  26. RADIATION METHODS OF HEAT TRANSFER • CONDUCTION • CONVECTION Strongest thermal currents created over landmass during daylight hours

  27. RADIATION METHODS OF HEAT TRANSFER • CONDUCTION • CONVECTION • ADVECTION

  28. Insolation

  29. Terrestrial Radiation

  30. Insolation Insolation Conduction

  31. Conduction

  32. Advection Advection Convection

  33. Sea Breeze Effect

  34. Land Breeze Effect

  35. Break Time Be back prior to arrival at OZR. (ETA 00+10)

  36. Enabling Learning Objective E ACTION: The student will identify the relationship of temperature with altitude change, to include temperature inversions. CONDITION: Given pertinent information about the temperature. STANDARD: IAW FM 1-230 para 3-7b

  37. Temperature A MEASUREMENT OF THE LEVEL OF INTENSITY OF HEAT ENERGY MEASURED IN DEGREES CELSIUS

  38. Warmest temperatures near ground • Decreases with altitude • Standard Lapse Rate • OLR – Observed Lapse Rate

  39. TEMPERATUREINVERSIONS • NOCTURNAL • FRONTAL WARMER AIR ABOVE COLDER AIR

  40. Best conditions for nocturnal inversion - clear and cool night

  41. Overcast Sky / Greenhouse Effect prevents a temperature inversion

  42. 03o C 0o C 05o C

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