264 







' 1 ' 1 ' 1 ' 1 ' 1 _ 



240 



- 





216 



• ." 





192 



- 





^168 



- _ 





3 



- 





144 



_ '*..._ 







', . 





z120 



- . . • : 





g 96 



. ' . 





< ^« 



• t 





DC 72 



— 1 • — 





3 



''',', 





Q 48 



1 • • • 



T 1 • I • • 





24 



— ■ T » » • • — 





°c 



■-t«lt' : 1 :.;... - 





1 400 800 1200 1600 2000 







MAXIMUM RADIUS (KM) 





Figure 6. Total period of time that cyclones could be tracked on weather 

 charts as a function of the maximum radius attained by the cyclone 

 (from Neilsen and Dole (1992)) 



10 



Chapter 2 Operational Analysis Depictions 



