30 

 25 

 20 



2 



D 1 5 



10 



5 - 







FREQUENCY HISTOGRAM: PERCENT TIME SUBMERGED PER 

 FOUR HOUR SUMMARY PERIOD 

 PTT 825 



— I 1 1 I \ 1 \ I r 



3 

 2 



1 

 



A. 



\ \ 1 : 



PERIODS 1-4 COMBINED 

 # PERIODS = 7 

 X=86 SD=5 



— I \ ] \ \ \ I \ r 



^^ 23:16-05 15 GMT (1) X = 86 SD=4 N = 3 

 ^^ 05.16-11 15 GMT (2) X=80 SD=0 N=l 

 ^^ 11:16-17 15 GMT (3) X=89 SD = 4 N = 3 

 I I 17:16-2315 GMT (4) X= SD= N = 



O 



CO 



I 



in o 



^ lO 



I I 



— CO 



lO 



in 



in 



o 



CO 



CO 



I 



in o 



CO r^ 



I I 



^ (X) 



CD CO 



— r 



in o 

 r^ CO 



I I 



^ CO 



in 

 CO 



CD 



O 

 05 



CD 



CO 



m 



I 



o 

 o 



I 

 CO 

 C3 



PERCENT TIME SUBMERGED 



Figure 70. Frequency histogram of mean percent time submerged for all 6-hour summary 

 periods for PTT #825. See note in Figure 68. 



108 



