1.0 



8 -YEAR RECORDS 

 1921 - 1928 



0.5 - 



-0.5 

 1.0 

 0.5 





 -0.5 



1929 - 1936 



1937 - 1944 



1945 - 1952 



1953 - 1960 



50 100 



LAG (DAYS) 



Figure 4. Autocorrelation functions 

 for 8-, 10-, 20-, and 40-year records 

 of Scripps Pier data. 



14 



