minimal value of 20 percent for > 2-foot (0.6-meter) waves in August nearshore (Fig. 5 1) to 

 a maximum of 70 percent for> 2-foot (0.6-meter) waves in the northern Channel Islands 

 (34°N). High waves (> 3.7 meters) occur rarely in August (2.5 percent at about 1 2 1°W, 

 32°30'N) and are slightly more common in winter (Figs. 52 and 53). 



Table 8. Nitrate concentration versus depth off southern California and northern 



Baja California. 













Ocean 



Locations 











Depth (m) 



1 



n 



3 



4 



5 



6 



7 



8 



9 



10 



11 











Nitrate concentration (/xg 



-at NO3 



-N/liter] 













1 



1 



2 



0.5 



0.5 



0.5 







- 



- 



- 



- 



10 



1 



2 



2 



0.5 



0.5 



0.5 







- 



- 



- 



- 



50 



1 



7 



2 



18.0 



7.0 



16.0 



12 



- 



16 



13 



- 



100 



15 



- 



9 



22.0 



20.0 



22.0 



21 



- 



- 



- 



- 



200 



24 



20 



19 



30.0 



28.0 



26.0 



28 



- 



- 



- 



- 



300 



30 



30 



- 



32.0 



33.0 



28.0 



33 



30 



- 



- 



23-33 





Ocean 



Locat 



ons 









Data Sources 







1 . San Diego Trough - September 72 



2. Off Baja California - July 72 



3. Off Baja California - August 72 



4. San Diego Trough - April 7 1 



5. San Diego Trough - October 70 



6. San Diego Trough - April 70 



7. Santa Catalina Basin - May 65 



8. San Diego Trough - April 75 



9. Catalina Island - September 75 



10. Catalina Island - November 75 



1 1 . Range of values from 300 meters - 



unpublished data 



unpublished 30°N, 120°W 



unpublished 30°N, 120°W 



unpublished 32° 30'N, 117° 30'W 



unpublished 32° 30'N, 117° 30'W 



unpublished 32° 30'N, 1 17° 30'W 



33° 18.5'N, 118° 40'W (Ref. 46) 



Supplied to W. North for upwelling experi- 

 ments. 



W. North, Personal Comm. 



W. North, Personal Comm. 



ICC experiment, from W. North (Ref. 12) 



