63 



58 



53 



48 



CO 



=> 43 



■a' 



CD 



a> 

 o. 

 to 



"? 38 



07 



CO 

 03 



<— ' 



CO 



33 



28 



23 



18 



13 



140 



20 



30 



40 50 



Duration Ti 



60 

 me, t (s) 



Figure 3-12. Duration of the fastest mile windspeed as a function of 

 windspeed. 



3-28 



