Lesson 3: Wind In The Atmosphere
Published on Nov 20, 2015
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PRESENTATION OUTLINE
THE MOVEMENT OF AIR
- Wind is air movement from area of high pressure to low pressure, sun is the source of energy
- Rising and sinking air forms convection cells, which make high and low pressure belts on Earth
- Coriolis effect is curving of a path from a moving object
Photo by Mingo.nl
GLOBAL WINDS
- Factors of global winds are pressure belts and Coriolis effect
- Easterlies, westerlies, and trade winds are the major wind systems
- Polar easterlies blow east to west, mid-latitude blow west to east, and tropical trade winds blow east to west
- High speed winds in the upper troposphere are jet streams
Photo by danielfoster437
LOCAL WINDS
- Local winds are caused by differences in pressure
- Sea breeze and land breeze absorb and release energy
- Mountain and valley breezes are a result of the released energy
Photo by Leo Reynolds
