Machine-translated by Google. Questions are authored in English.
Top

Discussion

Which observation confirms the thermal wind relation in the real atmosphere?

  • A.The exponential decrease of pressure with height
  • B.The occurrence of clear air turbulence in the vicinity of the jet stream during the winter months
  • C.The close agreement between observed shear and computed temperature gradients
  • D.The tendency of the surface wind to blow across the isobars at an angle of about thirty degrees

Answer: C

Routine comparison of radiosonde wind shear with the temperature gradient computed from neighbouring stations shows agreement to within observational error throughout the extratropical free troposphere. That is the direct empirical test. Cross-isobaric surface flow demonstrates friction, the pressure profile demonstrates hydrostatic balance, and clear air turbulence is a consequence of the shear rather than a test of its relation to temperature.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.