) 
£) 
Spectral Age (TM 85/8/10) 
Oo 
— 
Spectral Age (TM 93/7/8) 
(o 
— 
Spectral Age (TM 93/7/8) 
"eI y = -0.065458 + 1.01 8x R= 0.93166 
  
  
  
  
  
  
1004 
80- s 9i 
80 o IT 9 
404 A o 
204 Rope o 
pr 
oda" 
I I 1 T T [3 | uA 
Q; 10 20. 30/740::550 -60 70 80 
Spectral Age (TM 85/3/12) 
sos t y 211.175 + 0.7648x R= 0.88794 
704 o c Ê 
60- o = 
50- : jet st 
404 °, M 2 
30- o e? Se cn o 9 o 
o? DS °g o 
ë se. 9 
20 m c o 
19d. 2. 
0 I 1 I | I i I rg 
0 10 20 30 40. 50: 60 70 80 
Spectral Age (TM 85/3/12) 
Sog. = 12.299 4 0.71346x R2 0.90515 
704 °° Br 
604 e lo 
o 2 > 
50- pe” e 
404 Safe? VA 
304 e S249 
Q5 oo 
20- ees 
o 
107.2 oc os 
0 I I I I 1 
0 20 40 60 80 100 
High correlation coefficients were observed among D0312, 
of a), 
comparable between each other. 
forests with big changes between two images 
Spectral Age (TM 85/8/10) 
Figure 2. 
  
  
7904  Y713.218 * 0.67434x R- 0.81789 b) 
@ 604 S ket. 
S 9 o o E A o 
> 50 o o > ,7f ° o 
o o o 9 276 o 
m o ug d 
o 304 S um ot. met à 
< 
= 205 «9o do 9 
= 27989 9 
e does d 
Q 990 
wn 
0 T T T T T T [77 7) 
0 10- 20:5:304:040 ^50 80 “70°80 
Spectral Age (TM 93/3/9) 
A 
O 
L 
  
Spectral Age (TM 85/3/12) 
7777y 216.47 € 0.54964x R4 0.72846 — d) 
o 
o9 o ^ 
o >> 
9 o o 2,77 ° 
o2 
o ? ^ o0 0 
o z^ 
o 9 9 9^ o 
- o 
o 9 er 9 
o - 
9 "^00 
o o w^ 9 
3 
2 
2$ o 
zo Y^. 
qe © 
95 o 
eo 09 o 
  
701 
© 60- 
N 
I 
5 504 
1 I i I ud 
20 40 60 80 100 
Spectral Age (TM 85/8/10) 
----y = 6.9079 + 0.77305x R= 0.80758 — f) 
o 
o 
e 
\ 
o 
o 
„68. 
o d 
Pd 
o od? o 
  
  
= T 
Q 10 320. :3 
I I I T 1 
I 
0 40450 60 70 80 
Spectral Age (TM 93/7/8) 
Relationships between Spectral Ages of 4 TM Images. 
D0810 and D0708. For the case 
which is a comparison between winter and summer images within the same year, the 
regression slope is almost 1 and crosses the origin. Thus the results are probably 
Dots far from the regression lines probably suggests 
(or dates). 
28 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B7. Vienna 1996