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地震观测台网前兆监测能力是地震综合分析预报的基础,本文通过对影响监测能力的因素进行了分析,建立了监测能力函数,并把山西及邻近地区分为1400个小区进行了扫描计算,得出了对于各级地震监测能力的等级范围。 相似文献
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中国地震前兆台网主要问题探讨 总被引:3,自引:2,他引:3
通过“十五”中国数字地震观测网络项目建设,中国地震前兆台网的建设和运行维护取得了巨大的进步,但也存在一些不足之处。本文从观测、运行和服务等几个方面对中国地震前兆台网存在的一些不足之处进行了全面分析总结,提出了对这些问题的解决方法,以供今后前兆台网建设时参考。 相似文献
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对近两年河南区域地震前兆台网的观测仪器和技术系统中出现的典型情况进行了全面分析总结,阐述了维护过程中的一些方法,提出了对仪器与技术系统的一些问题与建议。 相似文献
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江苏省地震前兆台网中心技术系统的建设 总被引:1,自引:0,他引:1
引言 “九五”期间,江苏省建立了一个较大规模的数字化前兆观测台网。由于该台网实现了数字化,观测数据采样率高,信息量剧增,如何对这些进行有效的管理,使之更好的为地震分析预报及科研服务,成为一个重要的课题。为此,江苏省地震局在“九五”期间组建了地震前兆台网中心,用于汇集和管理各数字化台站的前兆观测数据。 此外,由于大量的模拟前兆观测项目仍然在运行,江苏省地震前兆台网中心按数字化前兆观测的技术规范,对模拟观测数据的存储格式及文件名进行了规范,方便了数字化数据与模拟观测数据的统一管理与对外服务。 1 概况 … 相似文献
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根据河南省及其邻省地震前兆专业台站的分布情况,利用数模型F=exp[-b(b-k)/n],以0.5°×0.5°作为单位区域,对河南省16万km^2区域内,分别计算出对5.0-6.5级地震及6.5级以上地震的监测能力图,并提出改进提高地震监测能力的具体措施。 相似文献
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应用Visual Studio 2010开发工具,结合福建省地震前兆观测台网管理的实际情况,研发一套福建省地震前兆台网运行监控日报自动编辑系统。该系统采用开放式的设计模式,可将前兆观测台网每日收集的观测日志进行自动编辑,形成符合规范的监控日报,实现人机交互的有效操作。 相似文献
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Based on the body strain observation data at Liyang and Xuzhou stations, the Correlation Dimension D2 and the second-order Renyi entropy K2 of the attractor are calculated and studied. In addition, a new method of evaluating the longest predictable time of precursor attractor is advanced under the condition of a certain anomalous criterion rule. The conclusion indicates that the body strain precursor attractor is one of the chaotic attractors and it has some determinate change rules such as the dimension declines before an earthquake and the number of the independent factors on which the variation of the system depends is within the range of 5 - 12. The conclusion also indicates that the longest evaluated predictable time of the body strain attractor is 213 days at the Liyang station and 342 days at the Xuzhou station. It is clear that this research can be of great reference value for recognizing the nonlinear behavior of precursor attractors and for evaluating the predictability of different precursor 相似文献
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地震前兆吸引子及可预报性问题研究 总被引:2,自引:0,他引:2
利用溧阳台和徐州台体应变前兆观测资料,计算并研究了地震前兆吸引子的关联维数D2和二阶Renyi料K2,提出了在一定异常判据下估算前兆吸引子可预报时间长度的方法。 相似文献
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浅谈山西区域地震无线通信网络 总被引:1,自引:0,他引:1
对无线通信与现代网络通信的通信方式、网络功能、网络拓扑等进行了对比分析,讨论了无线通信与现代网络通信在防震减灾工作中的重要作用,对山西省区域地震通信网络的实际情况及其承担的主要任务进行了分析,从其对中强地震的应急响应、抗震救灾中迅速及时传递震情、灾情,为政府和有关部门应急指挥、决策提供可靠依据等方面进行了总结。得出计算机通信网络可为大地震快速响应,为抗震救灾指挥等提供平台的结论。 相似文献
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The hydrogeochemical observation station network for earthquake prediction in China is discussed in detail in this paper.It includes the following:a)the process of station network establishment and the principle of network deployment;b)the characteristics of hydrogeochemical observation points' deployment and the conditions and types of these points;c)items and instruments of seismo-hydrogeochemical observation,etc.In addition,the monitoring capacity and prediction efficiency of the network are also discussed. 相似文献
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地震前兆数据库中的观测数据具有极高的科研及应用价值.MATLAB作为具有强大功能的科学计算及分析平台是地震前兆数据分析的得力工具.虽然如此,但MATLAB提供的数据库工具箱并不能完全操控基于ORACLE的前兆数据库.因此,直接通过MATLAB获取前兆观测数据进行后续的前兆统计及分析工作受到了影响.本文首先介绍了主流的数据库访问机制以及在MATLAB中如何实现以这些机制对前兆数据库进行访问并指出了其中的缺陷;然后,给出了通过组件对象模型(COM)的访问方式获取前兆观测数据的方法;最后,给出了使用该方法进行函数封装后,在实际应用中的实例的全部源代码.通过本文提供的方法,台站工作人员或科研人员可以快速、方便的通过MATLAB获取前兆数据库中的相关信息进行科研及日常管理工作. 相似文献
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With the rapid development of the economy in China, the seismic network has been changing rapidly, in that the capability of instruments, technological systems and network density are approaching those of developed countries and a large quantity of observation data has been accumulated. How to apply these resources to economic construction and public safety has become an important issue worth studying. In order to improve earthquake prediction and earthquake emergency response, it is suggested in this paper that extracting valuable precursor information, improving earthquake rapid reporting ability and extending rapid intensity reporting function are key issues. Integrating network resources, building unified standards and a multifunction seismic monitoring network are preconditions of establishing a public safety service platform and earthquake observation resources will contribute significantly to the fields of engineering, ocean, meteorology, and environmental protection. Thus, the future directions of the development of the seismic network are exploring monitoring resources, enhancing independent innovation, constructing a technological platform and enlarging the service field. 相似文献
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A groundwater observational network for monitoring seismic precursors has been established at the reservoirs on the lower reaches of the Jinsha River in southwestern China, where a series of hydropower stations are under construction. It is the second network in China that is operated by enterprises with the purpose to observe and study earthquake precursors in reservoir areas. This paper presents the layout and technical constitution of the network, features of its observational wells and aquifers and the preliminary result of its experimental operation. Its capability to monitor seismic precursor is evaluated based on an analysis of the well-aquifer system as well as the multiple-monthly, monthly, daily and hourly variations of water levels and water temperatures observed by this network. 相似文献