SAVI (Soil Adjusted Vegetation Index) Image of 1980 Landsat MSS Image
Identifier: 241_1Publication date: 2001
Author(s):
; William Stefanov; ;
Abstract:
SAVI (Soil Adjusted Vegetation Index) map produced from the 1980 Landsat MSS image. SAVI is a means of monitoring density and vigour of green vegetation growth using the spectral reflectivity of solar radiation.
Keywords:
remote sensing, vegetation, land use, soil, landsat, geographic information systems
caplter, central arizona phoenix longterm ecological research, arizona, caplter created, az, cap, arid land
Temporal Coverage:
1980-06-01Geographic Coverage:
Geographic Description:Central Arizona PhoenixBounding Coordinates:
Longitude:-112.7895 to -111.574918
Latitude:33.835268 to 33.184062
Contact:
Information Manager, Global Institute of Sustainability,Arizona State University,PO Box 875401,Tempe
caplter.data@asu.edu
Methods used in producing this dataset:
SAVI computation
The raw Landsat image was clipped to CAPLTER, georeferenced to NAD27 datum and UTM zone 12 coordinate system. Additional preprocessing include atmospheric correction and radiometric calibration. The model of the following form is then applied: ( (NIR-RED) / (NIR+RED+L))*(1+L), where NIR (Near Infra-Red) is the TM 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 range of possible values is -1.4 to +1.4
Entities:
Raster:
SAVI (Soil Adjusted Vegetation Index) Image of 1980 Landsat MSS Image[download]
Description:SAVI (Soil Adjusted Vegetation Index) map produced from the 1980 Landsat MSS image. SAVI is a means of monitoring density and vigour of green vegetation growth using the spectral reflectivity of solar radiation.
Horizontal Coordinate System:WGS_1984_UTM_Zone_12NRows & Columns:898 by 1418pixel
Attribute:SAVI
Description:Soil Adjusted Vegetation Index
Measurement Unit:dimensionless