三维空间过程模拟的时空数据模型研究
The Spatio-Temporal Data Model fo 3-D Spatial Process Simulation
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摘要: 现有的地理信息系统软件一般没有考虑时间和空间多维因素,难以处理时空多维地学现象。而空间过 程模拟是地学现象研究的主要手段。本文对空间过程模拟的数学模型、空间过程模拟模型的特点、现有GIS数 据模型的局限性进行了分析,提出用快照序列模型和时间参数模型支持过程模拟的方法,并结合地震动过程模 拟进行实例分析。Abstract: Current Geographic Information System ( GIS) software does not support the manipulation of multi-dimensional spatio-temporal data, therefore it is difficult to deal with the geographic phenomena with spatio-temporal multi-dimensions. Spatial process simulation is the main way to study the geographic phenomena. In this paper, a discussion is conducted about the mathematical model of spatial process simulation, the characteristics of spatial process simulation models, and the shortcomings of the present GIS data models. A method using the sequent snapshot approach and the temporal parametric model to support spatial process simulation is put forward, and a practical example is analyzed with combination of seismic dynamic process simulation.
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Key words:
- GIS /
- mathematical model /
- process simulation /
- data models /
- spatio-temporal
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