Research And Design A Platform Serving For Earthquake Location

Abstract: With the development of geosciences research, the solid earth research has become the hot, and the seismic observation and forecasting has been recognized as a breakthrough in the future of geosciences. With the continuous development of observation technological, the real-time seismology emerged and has spring up. one of the most important features is integrated by theoretical models and modern information technology together.Along with the development of seismology studies, the scientist has developed many software or tools for solid earth science and the seismology to simulate the earth's inner structure and to study and 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 data. Since the implement of Digital Earthquake Observation Network project in China, a great deal of seismic data has been producing by the seismic observation system at all times, and it will be as the basic materials for scientific research and has been one essential condition for the breakthroughs of geosciences. Nowadays the solid Earth Simulation computing is popular in geosciences research, and it needs large amounts of data and computing power, however the data resource, computing resources and the software in the field of seismological research are generally in the different institutes, which has limited the effective resources sharing and cooperation with each other for scientists. How to effectively integrate computing resources and data and providing a resource-sharing for scientists is particularly important and urgent.With the rapid development of information technology, it becomes possible to share resource; The appearance of Large-capacity storage device, High-performance computing technology, database technology, makes it possible to deal with massive data. The distribution computing technology and network technology provide a sharing and coordinating environments, which can realized in the dynamic multi-organizations of virtual organizations, and used distribution computing technology to implement sharing sources in the seismological field, including software , computing , and data , all this have gained common sense in the field of seismologic research. The establishment of earthquake research environment and distributed seismologic data sharing service system will effectively solve the problems in the resources sharing.earthquake locating is one of the classic and basic problems in seismology. The precise earthquake locating is vital significant to studies the basic question about seismology , such as the Earth's internal structure, the seismic activity structure, center of origin geometry in structure, inversion earth's crust seismography. fast accurate earthquake event locating is also important for the earthquake reporting at once, shakes after the disaster reduction, the disaster relief and the forecast earthquake tendency. since calculating earthquake locating method emerged, more and more methods about earthquake locating have appeared and developed along with the development of calculating technology and computer science. As the thought of earthquake forewarned is proposed , the faster and more precise method is extremely requested , especially for the real-time monitoring system. Each earthquake locating has its own advantage and disadvantage, and different result may be get by different methods. if a service platform for earthquake locating which can be integrated different locating methods could be researched and developed , users can be allowed to choose the method they like and get a perfect result.A platform servicing for earthquake locating - the classic and basic question in seismology, is discussed and designed in this paper based on the information and network technology. the paper is Under the research in the system with fast and precise earthquake locating project, which is one part of National Earthquake Network Computing Node Project sponsored by the Ministry of Science and Technology CHINA. firstly in this paper the sharing resources in the field of seismological research, especially the resources related with earthquake locating is analyzed, the present status of the methods and systems about earthquake locating are introduced as well as the developments in the word, and the factors affecting the precise of the earthquake locating are discussed. Secondly the architecture and technology necessary for building a net platform is described, including the concepts of J2EE architecture, MVC model, JDBC, EJB and web Service technology. Thirdly a architecture and framework is discussed and the functional components of platform service for earthquake locating is designed, including the user and privilege management module, log management module, UDDI centre, data management module and job schedule module. At last the HypoDD procedure is integrated into the system as an example of the method of how to integrate the existing application or. system to the platform environment.Another background of this paper is the information project, one part of the FIFITH PLAN OF CHIAN EARTHQUAKE ADMINISTRATION, including DATA MODELLING project,' report-tool system, Web GIS application system and web service for data service system. many significant inspirations , especially about resource sharing and system integrating, are obtained during the technology communications and in the course of participating in project management above. Some web services are discussed, developed and deployed in this paper, such as a report template as a web service for supplying statistics and analysis for the system, a graph service supplying by GMT software.