Application Research of Environmental Disaster Spatial Information Semantic Grid Based on Geo-ontology

摘要

According to the heterogeneous and spatial characteristic of environmental disaster events, this paper uses wetland information distributed in different administrative departments of Wuhan as research objects, attempts to construct an integrated and interoperation system based on semantic grid to tackle with the sudden environmental disaster. Through the conversion from domain (node) ontologies to universal ontologies in the spatial information semantic grids of environmental disaster, we can resolve the distribution and heterogeneity problem of the spatial information about environmental disaster, and logically provide users a virtual single spatial information view. With the management, registration and service mechanism of environmental disaster information and resource based on geographic ontology, all the operation are based on semantic. It can implement the grid calculation based on semantic and the integration and interoperation of environmental disaster spatial information and resources. As the instance shows that, the system can settle the heterogeneity problem of various GISs in a certain extent, and facilitate the semantic integration and interoperation among various systems.