Mean Surface Currents, cm/sec^' 







Pier 



End 















Monthly 





Monthly 



1980 



1979 



1978 



Average 



Beach 1980 



Jan 



26 



15 



15 



19 



6 



Feb 



31 



22 



37 



30 



19 



Mar 



8 



20 



37 



22 



4 



Apr 



4 



10 



15 



10 



6 



May 



15 



13 



10 



13 



3 



Jun 



2 



21 



-1 



7 



-19 



Jul 



-1 



6 



4 



3 



-22 



Aug 



8 



7 



4 



6 



-10 



Sep 



4 



14 



12 



10 



-14 



Oct 



4 



8 



10 



7 



27 



Nov 



19 





9 



14 



27 



Dec 



13 



7 



9 



10 



14 



Annual Mean 



11 



12 



11 



11 



3 



" + = southward; - = northward. 



Distance (m) 

 100 100 200 300 400 500 600 700 800 900 1000 1100 



Figure 29. FRF bathymetry for October 1980 



134. Near the pier, contours deeper than 3 m were significantly modi- 

 fied. The 7-m contour diverged some 250 m towards shore, but the 3-m contour 

 was relatively unchanged showing only a 20-m change. This bending of the con- 

 tours near the pier is persistent throughout the year, although the absolute 

 depth of the trough under the pier changes as a function of changing wave and 

 current conditions. 



67 



