Mean and inter-year variation of growing-season normalized difference vegetation index for the Sahel 1981-1989

作者：Compton J. Tucker, Wilbur W. Newcomb, Sietse O Los, Stephen D. Prince · 发表于：International Journal of Remote Sensing · 年份：1991 · DOI：10.1080/01431169108929717 · 被引用次数：239 · 研究领域：Remote Sensing in Agriculture、Remote Sensing and Land Use、Remote Sensing and LiDAR Applications

Images are presented that show the mean and coefficient of variation of nine years (1981-1989) of NOAA AVHRR normalized difference vegetation index (NDVI) data for the growing season (July-October) in Africa, north of the equator. The variation in the growing season NDVI is represented by the coefficient of variation image that shows the large variation in the Sahelian growing season between years. It is concluded that these images illustrate some aspects of the perspective being brought to regional and continental scale processes by coarse resolution satellite sensors and the potential of these sensors to provide consistent, long-term datasets.