u. 



Pnf An 



For T = 10° C 



Ap : 3 mb and 4mb 



An : isobar spacing measured in 

 degrees latitude 



p : 1013.3 mb 

 Pq -- 1.247X10'' gm/cm' 

 f : Coriolis parameter : 2 (iJsin 

 0.3 



where 



- angular velocity of earth), 

 0.2625 rad/hr 



= latitude in degrees 



30 35 



Degrees Latitude 



(after Bretschneider, 1952) 



Figure 3-18. Geostrophic wind scale. 



3-38 



