期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：1992
卷号：XXIX Part B7
页码：764-767
出版社：Copernicus Publications
摘要：This paper presents a comparison of tropical deforestation estimates inAVHRR/NOAA and TM/Landsat images for a region in Central Brazil where largeclearings in the forest prevail. A TM scene of 02/Sept/89 in the scale of1:250,000 was visually interpreted to produce a map with four classes:natural forests, deforested areas, natural savannahs, and rivers. The AVHRRimage of 17/Sept/89 with full 1.1 km resolution was, digitally degraded to2km resolution and classified to show forested and deforested areas.Comparison between deforested areas detected in the two data bases was donein a Geographical Information System for 54 grid cells of 10xl0 minutes.AVHRR channel 3 (3.7um band) provided the best results. A linear relationwas found with a Determination Coefficient of 0.93, higher than previouslyreported in the literature for other AVHRR channels. The methodologydeveloped is recommended for early location and assessment of new tropicaldeforestation
