With the development of e-science, more and more attention is drawn to the visualization and interoperation of scientific data. Integrating Data Grid technology and Geographical Information System (GIS) offers a well solution to implement e-science applications. Utilizing Data Grid technology could take advantages to share heterogeneous and distributed data sources. GIS provides visualization environment for spatial data and non-spatial data. In this paper we brought forward spatial information grid (SIG) architecture for gas network safety evaluation application. After discussing the key tech...
