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Soil Adjusted Vegetation Index (SAVI) image of 2000 Landsat Enhanced Thematic Mapper (ETM) image

Publication date: 2004

Author(s):

  • Central Arizona - Phoenix Long-Term Ecological Research Site
  • William Stefanov, Department of Geological Sciences, Arizona State University
  • Geological Remote Sensing Laboratory

Abstract:

Soil Adjusted Vegetation Index (SAVI) produced from the 2000 Enhanced Landsat Thematic Mapper(ETM) image. SAVI is a means of monitoring density and vigour of green vegetation growth using the spectral reflectivity of solar radiation. It is computed as follows:( (NIR-RED) / (NIR+RED+L))*(1+L), where NIR (Near Infra-Red) is the ETM band 4 (0.76-0.9 micrometers), RED is band 3 (0.78-0.82 micrometers), and L is the correction factor whose values range from 0 (high vegetation cover) to 1 (low vegetation). L=0.5 was used. The index has been designed to correct for high soil reflectance in arid regions.


Keywords:


Temporal Coverage:

2000-05-21

Geographic Coverage:

Geographic Description: Central Arizona Phoenix
Bounding Coordinates:
Longitude:-112.776642 to -111.569326
Latitude:33.851503 to 33.202291

Contact:

Information Manager, Global Institute of Sustainability, 
Arizona State University,PO Box 875401,Tempe
 caplter.data@asu.edu

Methods used in producing this dataset: Show


Data Files (1) :

Raster: SAVI (Soil Adjusted Vegetation Index) Image of 2000 Enhanced Landsat Thematic Mapper(ETM) Image
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Description: Soil Adjusted Vegetation Index (SAVI) produced from the 2000 Enhanced Landsat Thematic Mapper(ETM) image. SAVI is a means of monitoring density and vigour of green vegetation growth using the spectral reflectivity of solar radiation. It is computed as follows:( (NIR-RED) / (NIR+RED+L))*(1+L), where NIR (Near Infra-Red) is the ETM band 4 (0.76-0.9 micrometers), RED is band 3 (0.78-0.82 micrometers), and L is the correction factor whose values range from 0 (high vegetation cover) to 1 (low vegetation). L=0.5 was used. The index has been designed to correct for high soil reflectance in arid regions.
Horizontal Coordinate System:WGS_1984_UTM_Zone_12N
Rows:2358
Columns:3711

Column Description Type Units
Histogram Total number of pixels of each particular value
 Double number
Value Rescaled SAVI value
 Double number

Download EML Metadata for this data package