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AIR PRESSURE, FORCES AND WIND

This comprehensive guide explores the intricate systems governing wind dynamics, focusing on air pressure, forces, and the role of various factors such as topography and surface roughness. It examines large-scale and small-scale wind systems, including tropical cyclones, sea breezes, and the impact of the Coriolis effect and friction near Earth's surface. Detailed descriptions of wind measurement instruments like the wind vane and anemometer are included, as well as the behavior of winds under different conditions, such as stable and unstable layers, mountain waves, and land-sea interactions.

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AIR PRESSURE, FORCES AND WIND

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  1. AIR PRESSURE, FORCES AND WIND

  2. Larger systems, greater amplitude Smaller systems, less variation (except tropical cyclones)

  3. Sea Level Pressure Map

  4. Other constant height maps

  5. Constant pressure surface

  6. 500 millibar map

  7. Pressure Gradient Force Remember the paper cup experiment

  8. FRICTION NEAR EARTH’S SURFACE - WIND CROSSES ISOBARS

  9. The Inertial Coriolis Force GEOSTROPHIC WIND (aloft!!!) - WIND FOLLOWS ISOLINES

  10. WIND SMALL-SCALE & LOCAL SYSTEMS CHAPTER 10

  11. WIND VANE & CUP ANEMOMETER

  12. SONIC ANEMOMETER SOUND WAVES DETERMINEWIND SPEED, DIRECTION & TEMPERATURE Sonic transducers

  13. SNOWDRIFT

  14. SNOWDRIFT http://www.wrds.uwyo.edu/wrds/rmfres/fendrift.html

  15. Effect of Surface Roughness and Instability on Windspeed

  16. Depth of mixing depends on: Surface Heating WIND SPEED TOPOGRAPHY SURFACE ELEMENTS

  17. Effect of Eddies on Wind Inclination UNSTABLE STABLE

  18. MOUNTAIN WAVES

  19. ROTOR CLOUDS

  20. Shelter Belts

  21. WIND SHEAR

  22. Reinforcement of Wave Structure

  23. SEA BREEZE

  24. LAND BREEZE

  25. Lake-induced convergence Also SW Ontario

  26. CORIOLIS & FRICTION EFFECTS

  27. MONSOON SEASONS

  28. CHINOOK ! Cooling At MALR 6°C/km Warming At DALR 10 °C/km Warming At DALR 10 °C/km Cooling At MALR 6°C/km Cooling At DALR 10 °C/km X X VANCOUVER LETHBRIDGE 12°C 8°C More sensible heat

  29. CHINOOK WALL CLOUD

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