769 
3 Pf M " M 
i fc K Di C! & 
: & & £ : 
’JR = t 
Figure 8, 
The extracted UV extinction pattern 
of Lake Balaton. 
window except OX and CA. 
3) Only normalized values showed strong 
correlation to OX. 
4) No strong correlations were obtained 
from ratios of band 4 and band 5. 
There are four items, i.e. CH, PE, UV 
and PS, which have larger correlation 
coefficients than 0.8 using original 
values. However, these high correlations 
are considered not to be highly stable, 
because original data values are very 
sensitive to their positions on the image. 
Ground truth points addresses may not so 
Figure 9. The extracted oxygen saturation 
pattern of Lake Balaton using 
normalized image. 
accurate because of the errors by the 
geometric correction of the image and the 
errors in the position measurements of 
ground truth's. 
Therefore, we have selected 4 items, 
i.e. TR, CH, UV and OX, which have larger 
correlation coefficients than 0.8 to mean 
values or normarized values for further 
data analyses. The best unbiased 
estimates for these four items were level 
sliced and color coded. The resulting 
water quality patterns of the lake are 
shown in Figure 6, Figure 7, Figure 8 and 
TRANSPARENCY PATTERN 
OF 
THE LAKE BALATON 
JULY 2,1981 
■ 0-3 
m le - i3 
« 14 - 17 
ia - 2i 
■ 22 - 25 
■ 26 - 29 
■ 30 - 33 
« 34 - 37 
■ 38 - 41 
42 - 45 
46 - 49 
50 - 
< cm ) 
CHLOROPHYLL pattern 
OF 
THE LAKE BALATON 
JULY 2,1981 
sfegati 
fs;s-s 
5 £ £ S 5 fc 
Figure 6. The extracted transparency pattern 
of Lake Balaton. 
tt5KCf cfc 
3&8S5 Si; 
Figure 7. The extracted chlorophyll-a pattern 
of Lake Balaton. 
4.9 ■ 20.0 - 22.9 
7.9 ■ 23.0 - 25.9 
10.9 m 26.0 - 28.9 
13.9 - 29.0 - 31 .9 
16.9 32.0 - 34.9 
19.9 35.0 - 
(m9.m 3 ) 
W EXTINCTION pattern 
OF 
THE LAKE BALATON 
JULY 2?1981 
OXYGEN SATURATION PATTERN 
OF 
THE LAKE BALATON 
JULY 2;1981 . 
■ 0 - 80 ■ 141 - 160 
Xi 81 - 100 ■ 161 - 180 
101 - 110?« 181 - 200 
111-120 201 - 220 
■ 121 - 130 221 - 255 
■ 131 - 140 256 - 
(/.) 
U 0.000 - 0.003 
0.034 - 8.007 
0.008 - 0.011 
0.011 - 0.015 
■ 0.015 - 0.019 
■ 0.020 - 0.039 
■ 0.340 - 0.059 
■ 0.060 - 0.079 
0.380 - 0.099 
0.100 - 0.119 
0.120 - 0.139 
0.140 -