The Grid Gis Key Technologies

With the third tide of the Internet, application based on GRID technology has become a tendency of resource share domain. GRID is not a new word for Internet, neither is it mean to abandon or replace Internet. It is based on the Internet with higher quality and stronger function and wider user.GRID GIS is a technology system which can be used to construct computation environment of space information grid and space information service system. GRID GIS provides technology support the user to obtain, share, access and analyze the space data and provides a basic equipment for strong space data management and information process.The article exposes the GRID GIS structure, with the study of criterion of international open GIS consortium and other standardized organization, analyze the structure of GRID GIS and the category of space information services; under the system framework of middleware, the article put forward the GRID GIS software framework, and analyzes the technology of distributed computation and component GIS; according to the key study of GRID GIS integration in different distributed computation environment, the article advances GRID GIS software system structure that suitable to the distributed information integration platform; based on the study of interoperation of distributed GRID GIS component and the integration technology of GIS and model in multiple tier computation framework , the article puts forward and designs the integration method of GIS and model in GRID environment.The article profoundly studies the protocol of GRID GIS services and compares the development technology of GRID GIS services system function component, in addition, it proposes a new integration method of GIS and model based on GRID service framework.