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Determining the rate of forest conversion in Mato Grosso, Brazil, using Landsat MSS and AVHRR dataAVHRR-LAC thermal data and Landsat MSS and TM spectral data were used to estimate the rate of forest clearing in Mato Grosso, Brazil, between 1981 and 1984. The Brazilian state was stratified into forest and nonforest. A list sampling procedure was used in the forest stratum to select Landsat MSS scenes for processing based on estimates of fire activity in the scenes. Fire activity in 1984 was estimated using AVHRR-LAC thermal data. State-wide estimates of forest conversion indicate that between 1981 and 1984, 353,966 ha + or - 77,000 ha (0.4 percent of the state area) were converted per year. No evidence of reforestation was found in this digital sample. The relationship between forest clearing rate (based on MSS-TM analysis) and fire activity (estimated using AVHRR data) was noisy (R-squared = 0.41). The results suggest that AVHRR data may be put to better use as a stratification tool than as a subsidiary variable in list sampling.
Document ID
19880040784
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Nelson, Ross
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Horning, Ned
(Science Applications Research Lanham, MD, United States)
Stone, Thomas A.
(Marine Biological Laboratory Woods Hole, MA, United States)
Date Acquired
August 13, 2013
Publication Date
December 1, 1987
Publication Information
Publication: International Journal of Remote Sensing
Volume: 8
ISSN: 0143-1161
Subject Category
Earth Resources And Remote Sensing
Accession Number
88A28011
Funding Number(s)
CONTRACT_GRANT: DE-AC05-84OR-21400
Distribution Limits
Public
Copyright
Other

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