地球信息图谱与数字地球  

On Geo-informatic TuPu and Digital Earth

作　　者：廖克[1] 秦建新[1] 张青年[1] 

机构地区：[1]中国科学院地理科学与资源研究所,北京100101

出　　处：《地理研究》2001年第1期55-61,共7页Geographical Research

摘　　要：首先探讨了数字地球技术系统及其意义 ,研究了作为地球信息时空变化图形表达的地球信息图谱。在此基础上 ,分析了数字地球与地球信息图谱之间的有机联系 ,指出数字地球的发展将极大地推动地球信息图谱的研究 ;地球信息图谱是数字地球分析、处理信息的重要手段 。Digital Earth can be understood as digitized reoresentation and the recognition for real earth and related, geo phenomena. Digital Earth consists of spatial information with different levels and application models with different objectives. It includes the establishment of base and thematic digital maps with global, national, regional and urban scales, and satellite image data with different resolution and various geo informations such as population, economy, society and their application systems. Geo informatic TuPu, as graphic representation of spatio temporal change of geo information, is an effective tool for the application of Digital Earth. “Tu”, in Chinese word, includes graphics, maps and images. The Chinese word “Pu” means the well regulated sequence arrangement of the congener things, such as spectrum, chromatogram. “TuPu” involves the characteristics of “Tu” and “Pu” at the same time. Geo information TuPu can not only reflect spatial distribution characteristics of geo phenomena and regional differences between them, but also reveal the deeper level rules related to the cause of formation, the process of evolution and morphology. Having the aid of computer visualization and Virtual Reality technology, TuPu can dynamically and muti dimensionally reveal the spatial temporal distribution and evolvement laws of all kinds of geo phenomena. In this paper, the technological system of Digital Earth and its significance, and the concept of Geo informatic TuPu are discussed firstly, then, the model of Geo informatic TuPu transmission is presented. On the basis of the above mentioned researches, the relationship between Digital Earth and Geo informatic TuPu is discussed. It reaches to the conclusion that the development of Digital Earth will provide with abundant information resources and strong technological support for Geo informatic TuPu researches, and the enforcement of Digital Earth strategy will supply Geo informatic TuPu. Geo informatic TuPu will be an improtant me

关 键 词：数字地球 地球信息图谱 地球信息科学 

分 类 号：P208[天文地球—地图制图学与地理信息工程]