uncalibrated hydrometers and other factors, could produce an error amounting to a 

 couple of percent in the direct hydrometer readings. 





1.030- 

 1.029- 



Year Mean, g/cm'' 



2 J1395 1.0234 



''■—® 1990-95 1.0221 





1.028- 







1.027- 







1.025- 



."■-■.' 



\ 

 < 



1.025- 



■'■^-^ ':.■ ■••;. "": !.;■ vt3-\; 



u> 



1.024- 



A './"'^'^ •■' :'-y^^' ' "'•■■ 



'in 



c 



(D 



Q 



1.023: 

 1.022: 

 1.021: 



'."''\'''\. 





1.020: 



. ■ -. •. . ■• •■-."• ■■ 





1.019: 







1.018: 







1.017- 







JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 





Month 



Figure 21 . Daily water density values with monthly means 



Chapter 6 Water Characteristics 



45 



