Title: Construction and Application of Resources and Environment Data Grid
Abstract: Resources environment is the base of continual survival and development of human society. Researching resources environment can know the current status and the changing trends of the resources environment, and can sequentially explore the mechanism of resources environment changes. So there needs an open, distributed research platform to intensively study resources environment. With the platform, not only resources and environment data but also special application systems, models and software tools can be shared. According to the above requirement, this paper puts forward resources and environment data grid. The architecture of the grid mainly has the following types: the five-layered Sandglass Model, the OGSA (open grid services architecture), and the WSRF (Web Service Resource Frame). The OGSA takes services as core which can conveniently constitute uniform standard interface to manage all kinds of entirely different resources, and to accomplish sharing and cooperation. In this paper, the architecture of resources environment data grid is designed into three layers, i.e. grid resources layer, business logic layer and grid port layer, based on the OGSA. Furthermore, three key technologies are analyzed in this paper: resources environment data grid middleware, data resources gridding and the application function of resources environment data grid. Under the environment of J2EE, following the specification of the OGSI and the OWS spatial information, using the Web Services technology, the resources environment data grid can be realized. To illustrate the application of resources and environment data grid platform, a case of the sandy desertification in the surrounding areas of Beijing during 1991~2001 is studied.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
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