时态GIS的基本概念、功能及实现方法

吴信才; 曹志月

Volume 27 Issue 3

May 2002

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WU Xin-cai, CAO Zhi-yue, 2002. Basic Conception, Function and Implementation of Temporal GIS. Earth Science, 27(3): 241-245.

Citation:

WU Xin-cai, CAO Zhi-yue, 2002. Basic Conception, Function and Implementation of Temporal GIS. Earth Science, 27(3): 241-245.

WU Xin-cai, CAO Zhi-yue, 2002. Basic Conception, Function and Implementation of Temporal GIS. Earth Science, 27(3): 241-245.

Citation:

WU Xin-cai, CAO Zhi-yue, 2002. Basic Conception, Function and Implementation of Temporal GIS. Earth Science, 27(3): 241-245.

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Basic Conception, Function and Implementation of Temporal GIS

Faculty of Information Engineering, China University of Geosciences, Wuhan 430074, China

Received Date: 2001-11-16
Publish Date: 2002-05-25

Abstract

Abstract

Data possess spatiality and temporality, and a temporalGIS is a GIS thathas the functionof processing temporal data. This paper briefly introduces the basic conception and function of temporal GIS, the former including time, time mark, response time, etc., and the latter, analysis, updating, showing, et al. It also discusses the associated problems in temporal-spatial data representation, indefinablity and multi-scale.Meanwhile itexpounds emphatically the two basic data models, i.e. relation model and object oriented model, relation model has characteristic of rich meaning, integrated theory, high efficiency and soon.Adding time-dimension to relationmodel is attempted, and temporal data are treated with relation algebra and query language. Relation model includes three or more implement methods: classifying save, time segment and time mark. Object-oriented model provides many mechanisms, such as aggregation and relevancy. Many kinds of temporal space data are sustained in temporal GIS. OSAM/Tmodel and Inith OO model are included in Object-oriented model.
- geographic information system(GIS),
- temporal GIS,
- space,
- object

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References(19)

References

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