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This paper describes global changes in forest cover from 1982 to 1999 based on the 8-km Pathfinder Advanced Very High Resolution Radiometer (AVHRR) data set. The procedure involves the use of a regression tree in predicting percent tree cover for the years 1982–99. Training data are created from high-resolution imagery and used with phenological metrics derived from the annual AVHRR time series. Using...
Measured and modeled point spread functions (PSF) of sensor systems indicate that a significant portion of the recorded signal of each pixel of a satellite image originates from outside the area represented by that pixel. This hinders the ability to derive surface information from satellite images on a per-pixel basis. In this study, the impact of the PSF of the Moderate Resolution Imaging Spectroradiometer...
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