As the parcel of air rises it cools What happens to the density of the parcel

# As the parcel of air rises it cools what happens to

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As the parcel of air rises, it cools. What happens to the density of the parcel when it cools? It becomes more dense, and sinks. What happens at the surface when the parcel sinks? Sinking air creates a zone of high pressure at the surface. H A. Quick (HTF)—DO NOT DISTRIBUTE
Air moves from high to low pressure Gradient: spatial rate of change . Things flow from high to low. L H High Low A. Quick (HTF)—DO NOT DISTRIBUTE
Moving Air Giant heat engine, causes motion Warm air rises LOW pressure Cool air sinks HIGH pressure Air moves from HIGH pressure to LOW pressure VERTICAL MOTION HORIZONTAL MOTION AAAAAAM/Ki9Mw54eyxU/s1600/balloon.gif.jpeg ? &k=Kite A. Quick (HTF)—DO NOT DISTRIBUTE
Circulation cells Gradient-driven flow sets up convection cells L H A. Quick (HTF)—DO NOT DISTRIBUTE
6/29/20 Angular Momentum Angular momentum of a particle Conservation of Angular momentum In an isolated system, the angular momentum of the system remains constant, no matter what changes take place within the system. A puck of mass m = 1 kg is attached to a taut cord passing through a small hole in a frictionless, horizontal surface. The puck is initially orbiting with speed v i = 466 m/s in a circle of radius r i = 6.3 x10 6 m. If the radius reduce to r i = 5.4 x10 6 m, v = 543 m/s r mv mr L 2
Analog in earth system Particle at Equator: orbiting with speed v i = 466 m/s in a circle of radius r i = 6.3 x10 6 m. Moving to 30 o north: to r i = 5.4 x10 6 m, v i = 543 m/s Stationary Observer at 30 o north: v i = 389 m/s
Coriolis Effect FACT: The Earth is a sphere, and it is rotating. Who is moving faster? A person in Canada or a person in Mexico?

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• Fall '10
• BOB
• Coriolis Effect, Basic meteorological concepts and phenomena, atmospheric circulation

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