a) Water b) Water with dead trees 
  
  
  
  
  
  
  
  
  
  
  
  
    
  
  
  
  
  
  
10 
10 D 
£8 14 4 s 
8 S 
i Ë 
ë 8- 
ê D 
ab 
B- 4836] ^. ET Py 
S i N AR Wm ig 
&. $ -30 - Set 
9 E 
4 1 
s- m -34 47 
m 
-38 T T T T T T T T T T T T 
finn 34e gue 79V 9 1391711112 13^ *14 
Sample 
c) Eichhornia sp. d) Scirpus sp. 
10 10 
za + ~-14 
3 g 
8-18 4 8 -18 4 ^ E Zh m 
É à Aen 7 Rau. scm £x ver tee 
$ 22 9 224 M 
Û Û 
eb 
E-264 E254 
v 
= 5 
2 -30 À 9 .30 4 
A A 
a = 
fà .34 | Mm 34 | 
1 2 3 4 5 6 7 8 1303 5 719 1112/15/17:19/21 23 25:27:29 21: 33.38. 27.39 
Samples Samples 
—HH- HV-- VH--- VV —HH--- HV-- VH--- VV 
e) Forest 
10 
  
  
-22 4 
-26 4 
-30 4 
Backscattering Coefficient (dB) 
-34 4 
  
  
  
708-31 mr roi AO ON 
Ge AO PH MSIE 
Samples 
— HH — HV — HV--- VV 
Figure 3. Mean o? variation for all polarizations for all samples of classes. 
- 
to 
w 
A. 
M. 
  
— 
œ 
— 
to BY 
to o 
1 
bo 
> 
-26 4 
-28 4 
Backscattering Coefficient (dB) 
-30 4 
-32 4 
-34 4 
  
-36 4 
1234/1234 1234:1234:1234 
Scirpus Forest Zichhormia Dead Water 
tress 
1-HH 2- VV 3. HV 4- VH 
Figure 4. Dynamic range for all the polarizations and all the classes. 
  
  
  
  
  
-38 
  
532 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B7. Vienna 1996