International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B7. Istanbul 2004 
  
Ikonos-Multispectral satellite and an image of sensor ASTER of 
the satellite Terra. 
All the images had been geographically registered so that the 
cells of each image were coincident; also the possible geometric 
errors had been corrected, as well as, converted for physical 
values. Initially, the digital numbers had been converted for 
radiancia and, later, converted for reflectance at satellite level 
(Robinove, 1982; Markham & Barker, 1986; Hill, 1991; 
Mesquita Jr. & Bitencourt, 1997). During the conversion for 
reflectance, the values of radiáncia are corrected to the 
illumination effect, caused for the relative position of the Sun. 
The images of each date had been transformed into IVDN 
images (Rouse e/ al. 1973) and were selected only the area of 
study inside of the Pé-de-Gigante. 
In the sample plots of 30x30m were sampled the index of foliar 
area registered (IAF), with optic sensor LAI-2000/LiCor, in 
June of 2001 and January of 2002, when the percentages of 
covering of the projection of the coverege of the trees had been 
quantified, in each plot. The figure 3 showed IVDN images of 
the satellites: Landsat-TM, Terra-ASTER and  Ikonos- 
Multispectral and the position of the 39 sample plots in the 
study area. 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Figure 3. The sample plots position geografically associated 
with the Terra-ASTER and Multitemporal-Ikonos 
NDVI image. 
c 
coefficients of correlation was the 
3. RESULTS AND DISCUSSION 
The available images and the following parameters of the 
vegetation had been carried through correlation analyses 
between the IVDN and: height, basal area, cronw area, density 
of individuals, vegetation cover, volume of the cronws, 
cylindrical volume, total volume and index of foliar area, of 
each parcel of 30x30m. In table 1, are presented the coefficients 
of correlation between the parameters and the IVDN. The 
parameters of the vegetation and images IVDN had been 
ordered in the table based on the coefficients of correlation, the 
greater for the minor, respectively, of the right for left and from 
top to bottom. The parameter that presented the best 
coefficients of correlation with all the 
cylindrical volume, the image that presented the highest 
Landsat-TM image of 
images was the 
September of 1994. 
  
Volume 
  
Volume Área Densidade Area de Volume 
Cilindrico — Altura Basal de Copa — Cobertura Copas total 
(m?) (m) (m^) Individuos (m^) (Yo) (m!) (m) JAF Total 
Lundsat- 1 
set/1994 0.82 0,89 0.80 0,82 0,88 0.73 0.71 0.69 0.24 : f 
Landsat- 
jul/1996 0.79 0.84 0,80 0.80 0.86 0,80 0 0.74 { t 
1 
Ikonos- 1 
abr/2001 0.67 0.69 0,80 0.80 0.61 0.40 0.75 0.76 0.74 i 5 
Landsat- ' 
set/2000 0.76 0.80 0.72 0.73 0,81 0.78 0.61 0.62 025 + 6.08 
Terra- ' 
' 
nov/200 
2 0.47 0.43 0.62 0.58 0.41 0,14 0,59 0.61 074 ! 
' 
Lundsat- 1 
ngo/1995 0,53 0.53 0.48 0.45 0,54 0.50 0.29 0.28 0.04 | 3,64 
Landsat- ' 
jun/1997 0,42 0.49 0,39 0.44 0.44 0.40 0.30 0.28 02^ | T 
Landsat- ; 
nov/199 0.03 1 
5 0.54 0.53 0.40 0.38 0,46 0,40 0,30 0.24 HIN 
1 
y | 
Landsat- 0.07 , 
jun/1995 0.57 0.50 0.43 0.36 0.39 0.43 0.22 0.14 (3 
1 
Landsat- ' 
jul/1995 0.36 0.28 0,47 0.39 0.27 0.06 0.27 0.30 33 I 
(^15 
Landsat- 1.03 a 
jan/1996 0.39 0.27 0.22 0,11 0.15 0,22 0.00 [-0.0 NE 
Total’ 6.32 6.25 6.13 3.86 3.82 4.86 / 6 
  
396 
Ikonos-Multspectral of 2001 and the Landsat-TM images of 
September 1994 are distinguished of others, therefore they had 
had the maximum values for 4 parameters. The image of 
September of 1994, mainly with the parameters of the structure 
of the trunk, and the Multispectral-Ikonos of 2001, mainly with 
the structure of leves. 
The gotten results had been similar to the results gotten in other 
works with Cerrado with Bitencourt-Pereira (1980) and Santos 
(1988). Although the amostral area has been relatively small for 
the Landsat-TM images, the gotten values of IVDN had been 
similar to the gotten ones for Mesquita Jr. (1998). The control 
of the taking of data in the field and the work multiscales, with 
the Terra-ASTER images and of the [konos-Multispectral, they 
make possible qualitative and quantitative profit of the relations 
between the parameters of the vegetation and the IVDN. 
Internat 
0,6 
o o 
= TC 
correlation coeticient 
  
  
Figure 4 
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For the c 
curves ha 
of accum 
phase lag 
displacen 
temporal 
coefficier 
phase in t 
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The gotte 
data and 
dependen: 
the case o 
space res 
best resul 
Multispec 
other auth 
another p 
depthness 
crown of t 
Beyond th 
sampling 
including 
epifts alre 
et al., 199 
IVDN int