GIS中的通用水文模型数据结构研究

Research on data structure of general hydrological model in GIS

针对水文模型与GIS平台数据结构不一致这一数字流域集成的最大障碍,从模型角度研究地理数据与GIS融合的标准方法,并设计了标准化地理数据接口和可复用地理数据组件。自定义GIS兼容的地理数据结构,解决了GIS与水文模型高度集成的时空特征和拓扑结构不匹配问题。以软件工程中常用的组件接口技术为核心方法,提炼水文模型所采用的地理数据共同点。提出ArcGIS平台能够接受的模型通用地理数据标准并编列相应的标准接口和组件,推动GIS与水文模型紧密耦合的研究与应用。

The inconsistency between the hydrological model and the data structure of the GIS platform has been the biggest obstacle to the integration of digital basin.This paper studied the standard method of fusion of geographic data and GIS from the perspective of the model and designed standardized geographic data interfaces and reusable geographic data components.Geographical data structure compatible with GIS was customized to solve the problem of the mismatch between the temporal and spatial characteristics and topological structure of the highly integrated GIS and hydrological model.Using component interface technology commonly used in software engineering as the core method,the common points of geographic data used in hydrological models were extracted.The model general geographic data standards and corresponding standard interfaces and components that can be accepted by the ArcGIS platform were proposed to promote the research and application of close coupling between GIS and hydrological models.