A RS image sharing data model based on Data Grid

Based on the in-depth analysis of the remote sensing image sharing requirements and its current research, in this paper it is pointed out that the existing web-based sharing-models cannot eliminate "Isolated Information Islands" fundamentally. Based on the Data Grid technology, the author designed a remote sensing image sharing service model which are composed of the data resource layer, the Data Grid middleware layer, the image data service middleware layer and the application layer. After the feasibility study of the model, experiments are carried out on the remote sensing image information sharing service based on the Data Grid Technology under the environment of GlobusTookit 4.0 Grid Computing Platform. The results of the experiment show that, the remote sensing image data sharing service model is technologically available for the integration of heterogeneous and geographically distributed image storage and management system.