42 



SIGNIFICANT 



WAVE HEIGHT 



(m) 



BOTTOM WATER 



TEMPERATURE 



(deg C) 



CURRENT SPEED 



(MEAN REMOVED) 



(cm/s) 



TURBIDITY (mg/l) 



81 cm 

 ABOVE BOTTOM 



TURBIDITY (mg/l) 



33 cm 

 ABOVE BOTTOM 



6 -b 

 5^ 



5.5 -a 

 5.0 -|_ 

 4.5-1 

 4.0 -| 

 3.5-3 

 30^ 

 25 -j 

 20 -I 

 15 -#- 

 10 -| 



60 — 

 40 — 



20 — 



— 



-20 — 



200 "| 

 150-3 

 100 -|_ 





i)W0m00Wlmk wHkim^ m^^tiw^^k 



■*>A I J, ...- 



J'jA 



Figure 3-10. Time series plot of data from the 3-month measurement period. The following 

 data are presented on individual tiers: significant wave height, near-bottom water 

 temperature, hourly current speed after the mean has been removed from each of 

 the three deployment records, and turbidity at 81 cm (upper) and 33 cm (lower) 

 above the seafloor. 



Oceanographic Measurements at the Portland Disposal Site during Spring of 1996 



