Meteorology for Air Pollution Control Engineers6

# Meteorology for Air Pollution Control Engineers6 - ν =...

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1 n The most common way of adjusting for the observed  curvature shown in Fig. 5.3 is to introduce an adjustment  for the switch of frames of reference, called the Coriolis  force, which, when added to the other forces in Newton’s  law of motion, correctly predicts the observed behavior.

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2 n Unlike gravitational and centrifugal forces, which are independent of the  motion of the body being acted upon, the Coriolis force (or Coriolis acceleration)  acts at right angles to the motion of the body, is propotional to the velocity of  the moving body, and is given by: where = velocity of the moving body

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Unformatted text preview: ν = angular velocity of the earth ω Ø = latitude 2 sin Coriolis force on a body Coriolis acceleration Mass of the body υ ϖ φ = = 3 Example 2 n Repeat Example 1 from the viewpoint of someone riding on the earth, using the Coriolis force. n Solution: From any physics book one may find that the horizontal deflection due to any constant acceleration acting over a short time period is: 4 n Deflection = at the North Pole, sin Ø = 1, therefore, the right side is r t, the ω△ same as Example 1. ( 29 2 2 0.5 ( ) 0.5 2 sin x a t υ υ ϖ φ ∆ ∆ = g...
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Meteorology for Air Pollution Control Engineers6 - ν =...

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