Table 10 

 Mean Surface Water Characteristics Measured at the Seaward 



End of the FRF Pier 



Temperature, °C 



Visibility, m 



Density, g/cm" 







1980- 



1980- 





1980- 



1980- 



Month 



1984 



1983 



1984 



1984 



1983 



1984 



Jan 



3.6 



5.3 



5.0 



1.0 



1.3 



1.2 



Feb 



5.3 



4.4 



4.6 



2.2 



1.4 



1.5 



Mar 



6.8 



6.2 



6.3 



1.8 



1.2 



1.4 



Apr 



10.5 



10.5 



10.5 



1.4 



2.1 



2.0 



May 



13.6 



15.2 



14.8 



2.1 



2.5 



2.4 



Jun 



18.6 



19.6 



19.4 



3.6 



3.5 



3.6 



Jul 



18.3 



22.3 



21.5 



3.3 



3.8 



3.7 



Aug 



25.4 



22.3 



23.0 



3.2 



2.9 



3.0 



Sep 



22.3 



22.7 



22.6 



1.8 



1.9 



1.9 



Oct 



19.1 



18.7 



18.8 



0.9 



1.2 



1.1 



Nov 



14.3 



13.9 



14.0 



0.6 



1.0 



0.9 



Dec 



11.0 



9.7 



10.0 



1.5 



1.0 



1.1 



1984 



1980- 

 1983 



1980- 

 1984 



1.0215 1.0245 1.0238 



1.0226 1.0241 1.0237 



1.0224 1.0236 1.0233 



1.0192 1.0243 1.0231 



1.0217 1.0235 1.0230 



1.0215 1.0215 1.0215 

 1.0239 1.0212 1.0219 

 1.0179 1.0216 1.0207 



1.0205 1.0216 1.0213 



1.0216 1.0224 1.0222 

 1.0230 1.0236 1.0235 

 1.0237 1.0241 1.0240 



Annual 



14.1 



14.2 



14.2 



1.9 



2.2 



2.0 



1.0216 1.0230 1.0227 



63 



