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This paper introduces a framework for spatial resources management and discovery in grid environment. Users have great demand in accessing various spatial resources distributed at multiple nodes in the grid environment. Therefore, it is helpful to manage these spatial resources as a whole, making it convenient for users to achieve the resources they need. We introduce spatial metadata concept to describe...
Grid is a promise technology which could easily share distributed heterogeneous computing resources. It brings together geographically and organizationally dispersed computational resources. This paper presented a framework that aggregated the spatial resources based on grid technology, OGC specification and spatial data index. First, a grid environment for sharing geospatial data resources was setup...
A spatial data access control model in grid environment was proposed base on Globus Security Infrastructure (GSI). Firstly, A spatial datasets sharing framework was built up by Monitor and Discover Service (MDS), and then a common control model was proposed to realize spatial data access control. In this model, every user was mapped to a given role, and every role had a unique digital certificate...
The Barn project, a geospatial data grid prototype, provides a grid environment for applications of the nationwide geological survey data. Barn is developed based on the Globus Toolkit. Through Web portal, users can manage the grid resources, perform browsing, querying and analysis against the spatial data. According geospatial application nodes are organized into application domains. The node management...
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