【作者】 岳鹏；

【导师】 史明昌；

【作者基本信息】 北京林业大学 ， 地图学与地理信息系统， 2012， 硕士

【摘要】 地理信息的时空表达对人类认识地理世界、分析研究各种地理现象和地理实体的变化具有重要意义,同时也有利于时空数据模型研究工作。本文首先阐述了国内外时空表达研究的历史背景与研究进展；在广泛查阅大量国内外相关研究文献的基础上,探讨了国内外研究人员对于地理信息表达的不同理解以及地理信息表达的概念与内容；对地理世界中的时空观进行了分析,对地理信息的时空变化类型和特征进行了分析；将水利信息按照地理实体与地理要素进行划分,其中地理实体又包括点、线、面及复杂对象,对每种类型水利信息的时空变化特征进行了分析,在此基础上探讨了GIS中各类水利信息时空表达的方法,并初步分析了这种表达方法的实现原理。更多还原

【Abstract】 The spatio-temporal representation of geographic information has great significance for humans to understand geographic world, analyst and research on all kinds of geographic phenomenon as well as changes of geographic entities. Meanwhile, it conducive to spatio-temporal data model research. In the first place, the historical background and research progress of the domestic and foreign study on spatio-temporal expression are elaborated in this paper. As for geographic information expression researchers at home and abroad have different understanding, according to which a new definition of the concept and content of geographic information expression is raised.The paper also analyses the space-time in geographic world and the spatio-temporal change type and characteristics of geographic information. Then, water information is divided based on geographic elements and geographic entities, which includes point, line, polygon and complex object. Upon the analysis of spatio-temporal variation characteristics of water conservancy information, the paper studies method of all kinds of water conservancy information spatio-temporal expression and analyses the analyses the implement principle of this expression method.更多还原