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

Discussion

Which balance includes the centrifugal term alongside the other two?

  • A.Geostrophic balance, in which the Coriolis force alone opposes the horizontal pressure gradient
  • B.Hydrostatic balance
  • C.Ekman balance, in which friction is added to the two forces present in the geostrophic approximation
  • D.Gradient wind balance

Answer: D

Gradient wind balance sets the pressure gradient force against the sum of the Coriolis and centrifugal forces and applies wherever the trajectory is appreciably curved. Geostrophic balance is its straight-flow limit, obtained by letting the radius of curvature become infinite. Hydrostatic balance is vertical, and Ekman balance describes the frictional boundary layer. Naming the four balances with the term each retains or discards is a compact way to hold the family in mind.

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

Post your comment

Please log in or register to post a comment.