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

Discussion

Which quantity does the atmosphere transport that hydrostatic balance makes computable?

  • A.The mass of the overlying column from surface pressure
  • B.The vertical velocity, which follows directly from the rate at which the pressure changes with height
  • C.The wind speed
  • D.The humidity, which may be obtained from the pressure profile once the temperature profile is also known

Answer: A

Because surface pressure equals the weight per unit area of the column, changes in surface pressure measure changes in the mass above, which is the basis of the pressure tendency equation. Vertical velocity cannot be obtained from the hydrostatic relation, which contains no information about motion. Humidity requires an independent measurement. Reading the definition literally, rather than recalling a formula, is the reliable route through questions of this shape.

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

Post your comment

Please log in or register to post a comment.