TABLE III 



Summary of Environmental Parameters for Water Depth of 30 Feet 

 at Point Conception, California, November-Dec ember 1967 



ITEM 



AREA C 

 Black Canyon 



AREA B 

 Government 



Point 



AREA A 

 Co/jo Anchorage 



Average Mean 

 Grain Size 



2.51* 

 ( .17mm) 



2.5* 

 (.175mm) 







2.3* 

 (.203mm) 



Suspension 

 Velocity* 



20 cm/sec 



20 cm/sec 







19 cm/sec 



Bottom Slope (a) 

 (Vertical Rise/ 

 Horizontal Distance) 0.026^ 



0.0259 



0.0209 



Average Bottom 

 Current U = w/ct** k3 cm/sec 



32 cm/sec 



57 cm/sec 



Average Sea 



2 feet 

 KW WNW 



2 feet 

 NW-W 



2 feet 

 W 



Average Swell 



3-5 feet 



wsw-w 



3-5 feet 



wsw 



3 feet 



WSW 



Bottom Orbital 

 Velocity U m 



55 cm/sec 



56 cm/sec 



U6 cm/sec 



Sediment 

 Migration 

 u/3*** 



2.1 cm/sec 



2.k cm/sec 



1.2 cm/sec 



* Hjlilstrum (Heezen and Hollister) 



** Wilde 



*** Vernon (u = wave drift velocity) 



54 



