10- 

 9- 

 B- 

 7- 



nmURL 1980 

 RMMJFL 1961 



(— 



11 5- 



3- 

 2- 



l- 



0.01 0.10 1.00 



10.00 25.00 SO.OO 7S.00 90.00 



PERCENT GRERTER THAN 



99.00 99.90 99.99 



Figure 33. 1981 and 1980 sea surface visibility distributions 



* BO 

 o 81 



>: 3 



JflN PEB tlflR APR mt JUN JUL nUG SEP ttT NOV OGC flNNUfil 



MONTH 



Figure 34. 1981 and 1980 monthly and annual 

 mean sea surface visibility 



62 



