30 



25 



20 



z 



D 



- 



5 







10 



8 



6 - 



o 



z 



Of c 



FREQUENCY HISTOGRAM: PERCENT TIME SUBMERGED PER 

 FOUR HOUR SUMMARY PERIOD 

 PTT 833 



1 1 \ 1 \ r- 



4 Y- 



3 



2 



1 







z 



/ — r 



T 



"T 



PERIODS 1-4 COMBINED 

 # PERIODS = 26 

 X=81 SD=10 



T \ \ \ \ \ 1 r 



^^ 23:16-05:15 GMT (1) X=76 SD=15 N=7 



^^ 05:16-11 15 GMT (2) X=81 SD = 9 N = 8 



^^ 11:16-17 15 GMT (3) X=86 SD=4 N = 5 



I I 1716-23:15 GMT (4) X = 82 SD = 4 N = 6 



/ 



/ 



o 



I 

 CO 



CD 



lO o 



Tt in 



I I 



_ CD 



I 



o 



CO 



CD 



in 



CO 

 I 



.—I 



CO 



o 



CO 



CO 



in 



o 

 CO 



^ CD 



in 



CO 



CO 



o 



03 



CO 



CO 



' o 

 in o 

 0:1 -^ 



05 



CO 



PERCENT TIME SUBMERGED 



Figure 73. Frequency histogram of mean percent time submerged for all 6-hour summary 

 periods for PTT #833. See note in Figure 68. 



Ill 



