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SAVI (Soil Adjusted Vegetation Index) Image of 1975 Landsat MSS Image
Identifier:239_1
Publication date:1975
Author(s):
William Stefanov
Abstract:
SAVI (Soil Adjusted Vegetation Index) map produced from the 1975 Landsat MSS image. SAVI is a means of monitoring density and vigour of green vegetation growth using the spectral reflectivity of solar radiation.
Keywords:
SONORAN DESERT, PHOENIX, urban, remote sensing, caplter, Central Arizona Phoenix Longterm Ecological Research, metropolitan area, Arizona, SAVI, Project id 20, caplter created, Soil Adjusted Vegetation Index, Landsat MSS, Land-Use and Land-Cover Change, Database Remote Sensing GIS Applications, Land Use Changes, gis, Primary Production
Temporal Coverage:
1975-06-04
Geographic Coverage:
Geographic Description:Central Arizona Phoenix
Bounding Coordinates:
Longitude:-112.789592 to -111.574946
Latitude:33.838697 to 33.185353
Contact:
Data 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: MSS_4_6_75_mos_savi
download
Attributes:
Attribute:SAVI
Description:Soil Adjusted Vegetation Index
Measurement Unit:dimensionless
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