Name___________________________________________________________
Dynamics of the Atmosphere 11:670:324
Spring 2010
Dr. Anthony J. Broccoli
Hourly Exam #2
April 9, 2010
Unless otherwise noted, please answer each of the following questions in the blue book.
Read
each question very carefully before formulating your answer.
Show intermediate steps in any
calculations or mathematical manipulations.
1.
In this question you will be scaling some terms from the momentum equations for largescale
midlatitude weather systems. Assume that a typical value for horizontal wind speed is 10 m s
1
, a
typical value for vertical wind speed is 0.01 m s
1
, and a typical horizontal size of a midlatitude
weather system is 1000 km. Since you are only scaling these terms to the nearest order of
magnitude, assume that the radius of the earth is 10
7
m. Please compute the approximate
magnitude of each one of these terms, giving your answer in SI units.
Please show your work
.
(6 points)
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 Spring '11
 Broccoli
 Cartesian Coordinate System, Polar coordinate system, blue book

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