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Normalized Difference Built-up Index UJJAIN
NDBI 1999 NDBI 2011
Mix red-yellow Urban
Yellow Water body
Green Vegetation
Blue Open land/water-logged
Spatial Changes:
Increase in Urban area from 1999 to 2011
Increase in water-body from1999 to 2011
Decrease in vegetation from 1999 to 2011
NDBI
( Band5-Band4)/(Band5+Band4)
Note: It is seen that features are not precisely demarcated.
Hence NDVI is preferred.
Image Source:Landsat5
Janki Adhvaryu PT200614
Normalized Difference Built-up Index HARIDWAR
NDBI 1999 NDBI 2011
Mix red-yellow Urban
Yellow Water body
Green Vegetation
Blue Open land/water-logged
Spatial Changes:
• Clear water is reduced while water-logged area
increased from1999 to 2011
• Dense vegetation decreased while effective
vegetation increase from 1999 to 2011
NDBI
( Band5-Band4)/(Band5+Band4)
Note: It is seen that features are not precisely demarcated.
Hence NDVI is preferred.
Image Source:Landsat5
Mayank Singh sakla PT200814
Normalized Difference Vegetation Index UJJAIN
NDVI 1999 NDVI 2011
NDVI
( Band4-Band3)/(Band4+Band3)
Dense Vegetation
Effective Vegetation
Open/Barren land
Urban/Water-body
Image Source:Landsat5
Calculation:
Identity used= Pixel size*No.of
pixel/106 =Area in sq.kM
REGION 1999 2011 Change
in area
Urban/water
body
6534 3728 -5.6%
Open/Barren 23522 28490 10%
vegetation 4320 3288 -2%
Dense
vegetation
725 250 -0.9%
Pixel-size=30*30mt
Janki Adhvaryu
PT200614
Note: Water-body
decreased and Urban
increased
Area in sq.kM
Normalized Difference Vegetation Index HARIDWAR
NDVI 1999 NDVI 2011
NDVI
( Band4-Band3)/(Band4+Band3)
Dense Vegetation
Effective Vegetation
Water-body
Image Source:Landsat5
Calculation:
Identity used= Pixel size*No.of
pixel/106 =Area in sq.kM
REGION 1999 2011 Change
in area
Dense
vegetation
7533 890 -13%
vegetation 7844 16390 16.3%
Urban/water
logged
34285 14350 -38.5%
Water-body 2130 20350 34%
Pixel-size=30*30mt
Urban/Water-logged
Mayank Singh Sakla
(PT200814)
Area in sq.kM
• Water-body,
urban increased
• Dense forest ,
water-logged
decreased
