

7.0- 



Year Mean, m 



■' ^1992 2.0 



G-.. 1980-92 2.1 





6.0- 







5.0- 





E 







>> 



4.0- 





n 





- * ^-^ 



> 



0) 



3.0- 



- ■■■ ,/'7^- 



o 



2.0- 



./^^^-^^: ■ \_^- 





1.0- 



•■ - 





0- 







JAN FEB MAR APR MAY JUN ..iUL AUG SEP OCT NOV DEC 





Month 



Figure 20. Daily water visibility values with monthly means 



Density 



Daily and monthly mean surface density values, plotted in Figure 21, were measured with a 

 hydrometer. Monthly means are also given in Table 8. 



43 



