SAN FRANCISCO STATE UNIVERSITY                                 Metr  430

DEPARTMENT OF GEOSCIENCES                                                  Fall 2010


In Class Exercise No. 3


Due Friday, October 9


Instructions:  Work with other students if you like.  However, please do not ask other faculty members to help you with this.   I want to see what you come up with on your own.


Thermal Wind (Use Thermal Wind arguments in answering this question.   You’ll also need to think about geography)

1.   Explain why

 (a)   In any given season, the polar jet stream is stronger in the S.  Hemisphere;

 (b)   There is less of a variation in the strength of the S. Hemisphere jet from

        winter to summer in the strength of the N. Hemisphere jet.