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15m
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B-YF. Istanbul 2004








































































NDVI (TM4-TM3)/(TM4+TM3) s ; ; : : :
Correlation and stepwise regression analysis were examined
NIR TM4/TM3 between field data and relevant 9 pixels values of the vegetation
indices calculated using the original ETM' data and the fused
RA TM4/(TM3+TM5) bands data. At least one very well adjusted model was obtained
to predict the percentage vegetation cover on the whole region.
SAVI (TM4-TM3)(TM4-*TM3-0.5)*1.5
RESULTS AND DISCUSSION
TVI (TM4-TM3)/(TM4+TM3)+0.5 8
IRI TM4-TM5)/(TM4+TM5S
( M ) Table (2) demonstrates the percentage vegetation cover on each
VNIRI | (TM4-TM1)(TM4+TM1) sampling points,
VNIR2 (TM4-TM2)/(TM4+TM2) (Table 2) Collected field data on sampling points with described
quadrates
PD311 TM3-TM1
PD312 (TM3-TM1)/(TM3+TM1) Sampling Percentage Sampling Percentage
point Cover point Cover
PD321 TM3-TM2
MIRVI | (TM7-TM3)/(TM7+TM3) 1 48.5 21 35
MIRV2 (TM5-TM3)(TMS-*TM3) 2 42.5 22 47.5
PD322 (TM3-TM2)/(TM3+TM2) 3 55 23 22
MINI (TM7-TM4)/(TM7+TM4) 4 37.5 24 20
VII TM6H*TM7/TM3 30.5 25 20
6 48.3 26 2
VI2 TM4*TM6H/TM7 : s :
7 75 27 32.5
VI3 TM2*TM6H/TM7
8 59 28 5.933
*
VI4 TM3*TM6H/TM7 9 33.75 29 42
VIS TM6H-
(TM3+TM5)/TM6H+(TM3+TM5) 10 42.5 30 50
TM2-
FIG (TM7+TM6H)/TM2+(TM7+TM6H) H 37.3 8 60
VI7 TM6/(TM3*TM5) 12 52 32 60
13 75 33 54
14 22 34 45
Pixel NO 1
13 43.5 35 60
il 16 53.75 36 48
£ 17 54 37 35
110 18 33 38 50
ji 19 27 39 50
gre 20 26 40 50
E
T mmm à
The resulted correlation coefficients of the percentage
vegetation cover and vegetation indices of the ETM" and fused
bands data are recorded in Table (4). According to this table
VI3, VI4 and Hyb4 (merged by means of spectral response
Pixel.No 9 method) have the best correlation with vegetation cover (P=1%)
Ÿ
S 15m

(Fig 1) the 9 pixels and the 10 randomly placed quadrates.
199