CD 

 O 



O 

 LU 



to 

 I 



O 

 CD 



15-i 



14- 



13- 



12- 



11- 



10- 



9- 



8- 



7- 



<1 

 a: 6- 



a_ 



a: 



UJ 



LU 



ex 



5- 



X 4-| 

 CD 



lu 3- 



X 



2- 



— I 1 1 1 1 1 1 1 1 1 I I 



JflN FEB IlflR APR tlflY JUN JUL AUG SEP OCT N0V DEC 



NATURAL BRIDGES 



CALIFORNIA 



DATA COLLECTED BETWEEN 1 JflN 70 AND 24 N8V 70 



Figure 10. Typical monthly average breaker height and period versus 

 time plot, LEO site 05004, Natural Bridges, California. 



23 



