Atmospheric viscous drag?

  • #1
I guess the earths surface pulls around the lower atmosphere with viscous drag effects? What about the upper atmosphere? Does it rotate with a slower absolute tangential velocity? If so, is there any pressure difference that caused by the difference in velocities that would cause any significant movement of air towards the earth (i.e. bernoulli effect).
 

Answers and Replies

  • #2
russ_watters
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Based-on Newton's 1st law, no force is required to keep the atmosphere rotating with the earth.
 
  • #3
rcgldr
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There are "easterlies" (trade winds) that flow in the direction of the earths rotation, or "westerlies" that flow opposite, depending on the distance from the equator.

http://en.wikipedia.org/wiki/Trade_wind
 
  • #4
russ_watters
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Those are caused by the coriolis effect acting on vertical convection.
 

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