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Knowledge visualization is an emerging field of research which develops on the basis of scientific computing visualization, data visualization and information visualization. In this paper, the concept, formats, and theoretical basis of knowledge visualization are discussed; three kinds of it (concept maps, mind maps, and visual metaphors) and ways of applying them to improve learning effect are commentated...
A ten-day interval of satellite data (NOAA/AVHRR) between 1981 and 2001 were used to investigate the Vegetation dynamic in Northern-Tibet Plateau (NTP), China. The relationships between NDVI and climatic parameters were analyzed in six counties of NTP. And the human activities factors such as population also tested in this study. The result shown that the prominent increase and decrease of NDVI occurred...
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