地理数据的不确定性研究  

The Uncertainty of Geographic Data

作　　者：承继成[1] 金江军[1] 

机构地区：[1]北京大学地球与空间科学学院,北京100871

出　　处：《地球信息科学》2007年第4期1-4,共4页Geo-information Science

摘　　要：目前地理数据不确定性是制约遥感(RS)与地理信息系统(GIS)发展的主要因素之一,直接影响地理数据分析的空间决策支持系统输出的可信度。如何识别、量化、跟踪、减少、可视化表达地理数据不确定性,已引起地理信息科学领域专家的广泛重视,成为3S领域新的研究热点。本文先阐述地理数据不确定性研究的重要性,然后分析地理数据不确定性产生的根源,最后提出开展地理数据不确定性研究的方法及地理数据不确定性的优先研究领域。Geographic data uncertainty problem was one of the key aspects which held back the development of remote sensing and Geographic Information System（GIS）,the geographic data uncertainty problem impacted the credit of geographic data analysis based spatial decision support system output directly. How to identify,measure,trace,reduce and visualize the geographic data uncertainty had already induced much attention of the experts in the field of geographic information science,geographic data uncertainty problem was a new research hot spot in 3S domain. In this paper,the importance of geographic data uncertainty research was expatiated,the root of geographic data uncertainty was analyzed,the research methods and preferential domain of geographical data uncertainty were presented.

关 键 词：地理数据 不确定性 遥感 地理信息系统 优先研究领域 

分 类 号：P208[天文地球—地图制图学与地理信息工程]