Area-location Association and Comprehensive Expression of Multi-source Spatial Information Based on Global Subdivision Framework

Traditional GIS lacks the ability to establish the relationship between geographic object and its related global massive multi-source spatial information.GeoSOT subdivision framework was used to organize and manage multi-source spatial information in a unified manner,and "Object-Mesh-Data" three-layer spatial information organizational mechanism was put forward.Based on this mechanism,multi-source spatial information area-location association model was designed to support association and query of spatial information.In order to validate this model,multi-source spatial information comprehensive expression experiment was carried out.The experiment result proves the effectiveness of this model,which can improve the application performance of massive multi-source spatial information.