Research For Application Of Grid Computation And Network Collaboration In Earthquake Science

With the development of geosciences research, the solid earth research has already became a hot spot, and the seismic observation and forecasting has been recognized as a breakthrough in the future geosciences. Real-time seismology emerged with the continuous development of seismic observing systems.The most important feature of real-time seismology is integrated by theoretical models and modern information technology together. The scientist has already developed many soft wares or tools for solid earth science and the seismology to simulate the earth's inner structure and to forecast earthquakes. Meanwhile thanks to the rapid development of information technology, high performance computing and computer network make it possible for scientific research to process huge mass data. Since the implement of Digital Earthquake Observation Network Project in China, huge mass of digital seismological data will be produced by earthquake observation system, and it will be as basic materials for scientific research. Nowadays, the solid earth simulation computing gains popularity in the scientific research. The simulation computing need huge mass seismological data and computing power, however the computing materials and software in the field of seismological research are in the different institutes, so scientists fail to effectively share information or cooperate with each other. It is necessary to share information or cooperate with each other for scientists. How to effectively integrate computing resources , data, and to provide scientists a platform are important.On the other hand, the rapid development of Internet information technology makes it possible to share resources on the level of technology. The computer grid and distribution computing technology provide a sharing and coordinating environments, which can realized in the dynamic multi-organizations of virtual organizations, and used grid technology to implement sharing sources in the seismological field, including software , computing , data and observing device, all this have gained common sense in the field of seismologic research. The establishment of earthquake computing grid environment and distributed seismologic data sharing service system will effectively solve the problems in the resources sharing.The methods of integrating resources in the earthquake computing grid , which based on the grid computing technology are described in this paper. Under the National Earthquake Network Computing Node Project, which sponsored by the Ministry of Science and Technology CHINA, firstly in this paper in the sharing resources are analyzed in the field of seismological research, and the concepts of computer gird, earthquake computing grid, are introduced as well as the developments in the world. Secondly, the grid system architecture is described , including five sandglass model and OGSA model, and introduced key technologies of Globus Toolkit, which can implement grid computation , from the views of security, information service, resource management and data management in detail. There are also introduced Web modules technologies, which based on the J2EE1.4 platform in the system of interactive network. The designs of the prototype of earthquake computing grid, including the prototype infrastructure and it's characters, also are described in the paper. And it is also discussed the key technologies and methods of implementing this prototype system, such as Website, network security,...