地震日常分析会商数据库管理软件

介绍了地震日常分析会商数据库管理软件研制的思路.该软件构建了最优的数据库表结构和Excel模板,实现了会商登记卡、震情监视报告、首都圈地区震情短临跟踪动态等信息的浏览、新添、删除、修改、保存、打印,具有首都圈地区各学科异常频次自动统计、绘图等功能.     

前兆数据自动化处理与信息推送技术研究

基于形变、流体、电磁学科等宏、微观资料为基础的会商业务流程,利用Datist数据专家与Oracle关系型数据库,使用SQL及MATLAB等语言,开展地震分析会商技术系统的开发与研究,实现了在云环境下前兆数据自动化处理与产品信息推送,有效服务了日常震情跟踪和会商。     

基于MapSIS的地震地球物理台网事件可视化平台建设

地球物理台网观测数据是反映前兆台网数据变化信息的重要部分,可为监测数据质量评估、地震分析预报会商、地震科学研究等工作提供科学依据。为充分利用这些保存在数据库中的事件数据记录,研制了基于MapSIS的地球物理台网事件可视化平台。该平台实现了事件记录的人工交互分析、自动统计分析,基于震情自动触发的专题报告自动生成等功能,具有功能全面、运行稳定的优点。该平台现已在全国地震前兆台网、地震分析预报会商中部署使用,可为地震分析预报提供科学可靠的信息服务。     

数传网传输通讯,分报整编及数据入库系统的设计与实现

0 前言 随着国家地震局及各省局无线数传网、地震数据库和现代化会商室的建立,地震分析预报工作正逐步走向现代化、自动化。但目前各省局从台站观测数据的收集、数据入库到图形、图表的输出,仍需分析预报人员手工抄录、手工入库,即现代化数据收集系统和分析处理会商系统是两个脱节的系统。这一人工干预节点,直接影响了两个现代化系统效率的充分发挥。为使地震分析预报工作真正做到自动化、计算机化,我们研制了数传网传输通讯、分报整编及数据入库系统软件,实现了从台站观测数据的收集到数据入库以及会商图形显示等工作的自动化。     

辽宁省地震会商技术系统的设计和实现

辽宁省地震会商技术系统是基于Datist软件为平台,致力于解决不同种类的地震会商综合服务系统,满足地震会商中多场景使用、多源数据处理、多软件融合的需求,包含地球物理观测资料管理、日常震情会商和显著震情分析三大模块.目前,辽宁省地震会商技术系统V1.0版已通过业务试用,取得了良好的应用效果.     

新疆地震分析会商系统现代化建设

地震分析会商系统是地震信息系统的重要组成部分。新疆是我国大陆多震区之一,地震分析预报任务繁重,但多年来地震会商条件十分简陋,很不适应时代的要求,因而地震分析会商系统的现代化建设十分紧迫和必要。在国家地震局科技监测司统一部署下,我局于1987年开始实施“新疆地震分析会商系统现代化建设”项目。     

实时震情分析与快速发布系统

<正>在1966年邢台地震后的40年间,我国地震系统已逐步建立起一套完整的震情会商制度(韩渭宾,2004).显著地震发生后,对地震形势的分析和震后趋势判定始终是震情会商工作的重点(贾婧等,2008).大震应急的紧迫性对震情分析的时效性和准确性提出了很高的要求,而借助震情分析会商软件的支持可显著地提高震情分析的效率.但是,传统的会商软件平台仍在使用单机模式,该模式的弊端为:1用户     

甘肃省地震分析预报计算机实用软件系统研究

本文概略地介绍了甘肃省地震分析预报计算机实用软件系统。该系统充分利用了已形成的软，硬件资源，实现了区域综合数据库，实用化攻关软件，分析预报专家系统和会商系统的联机，以发挥分析预报的整体效益。实际使用表明，该系统具有较好的区域性和实用性，改善了甘肃省地震分析预报工作。     

地震日常分析会商辅助软件的设计与实现

介绍了地震日常分析会商辅助软件的特点,功能及使用,软件由三个模块组成：地震目录DBF月报文件格式转换为EQT文件、Qc值筛选地震事件、小震综合震源机制解数据格式转换。软件为地震分析会商提供数据预处理服务,便于专业技术人员提高工作效率。     

地震监测预报信息化技术与实践

监测预报是地震部门的核心业务,随着“数据密集型科技”时代的到来,地震信息处理模式也将发生变化。地震监测预报信息化技术与实践栏目的设置,旨在通过学术交流,分享地震分析会商技术平台的建设经验与成果,促进地震会商技术系统的版本列装,全面推进地震会商从自动化向智能化的方式转变,最终形成新的地震预报业务生态。     

A Monte Carlo study of rainfall forecasting with a stochastic model

A procedure for short-term rainfall forecasting in real-time is developed and a study of the role of sampling on forecast ability is conducted. Ground level rainfall fields are forecasted using a stochastic space-time rainfall model in state-space form. Updating of the rainfall field in real-time is accomplished using a distributed parameter Kalman filter to optimally combine measurement information and forecast model estimates. The influence of sampling density on forecast accuracy is evaluated using a series of a simulated rainfall events generated with the same stochastic rainfall model. Sampling was conducted at five different network spatial densities. The results quantify the influence of sampling network density on real-time rainfall field forecasting. Statistical analyses of the rainfall field residuals illustrate improvement in one hour lead time forecasts at higher measurement densities.     

Earthquake Engineering and Engineering Vibration Aims And Scope

正This journal is established by the Institute of Engineering Mechanics(IEM),China Earthquake Administration,to promote scientific exchange between Chinese and foreign scientists and engineers so as to improve the theory and practice of earthquake hazards mitigation,preparedness,and recovery.To accomplish this purpose,the journal aims to attract a balanced number of papers between Chinese and     

Foreword

Destructive earthquakes have caused great damage in China and the United States and collapsing buildings havecaused many deaths and injuries. The field of earthquake engineering studies earthquake hazards, the occurrence ofearthquakes of various magnitudes, the nature of the ground shaking during an earthquake, the vibration of structuresduring earthquakes, the strengthening of existing structures and the design of new structures to be earthquake resistant,and finally, how to cope with earthquake damage and restore a city to normal functioning. Such efforts are in progressin both countries, but unfortunately, the language barrier interferes with the free flow of information between China andthe Untied States. It would be mutually beneficial if some means could be developed to promote the exchangeof information across the Pacific Ocean. This new journal has been established for this purpose and its success willbe an important step in promoting earthquake engineering in China and the United States.     

WORLD ASSOCIATION FOR SEDIMENTATION AND EROSION RESEARCH(WASER)

正President:Giampaolo Di Silvio,Italy Vice Presidents:Ulrich C.E.Zanke,Germany Zhao-yin Wang,China The World Association for Sedimentation and Erosion Research(WASER),inaugurated on Oct.19,2004,is an independent non-governmental,non-profit organization.The mission of WASER is to promote international co-operation on the study     

Enhancing remote sensing research on global change to improve our understanding on Earth system processes

正Global Change includes climate change and other environmental changes caused by the joint interaction among various layers of Earth. From the positive side, global change provides new opportunities to human and other living forms on Earth. In the meantime, it creates tremendous challenges and negative impact. At present, the negative impacts have reached all primary processes of the global ecosystem and every aspect of human society, especially causing degradation of the ecosystem. For instance, intensive deforestation causes decline of biodiversity; global warming causes sea level rise and increases     

Solute concentrations in the lower niger river and the source rock contribution

Water quality analyses for the Niger River for the 1980/81 hydrological year are presented. The samples were collected from the main river at Lokoja, and from two main tributaries, the Kaduna and the Benue Rivers. Different water types were distinguished by the concentrations of major ions. The type Ca > Na > Mg > K - HCO₃ > SO₄ > Cl was represented at all stations during at least part of the year. Chloride was found to dominate the sulphate ion in the Kaduna and Niger, while the Benue maintained a higher concentration of sulphate relative to chloride all year round. Distinct patterns of seasonal variation in the ion concentrations were observed, particularly for the samples collected at Lokoja. Low ion concentrations were prominent during periods of high discharge, while low flow periods coincided with high dissolved ion concentrations. The contribution of rainwater to the total dissolved solids in the river waters was assessed indirectly using rainwater chemistry data from the Gulf of Guinea. The estimated rainwater contribution to the Lower Niger amounts to 5.15 mg 1^?1. Geochemical weathering calculations involving reactions of the four major minerals of granitic rocks - anorthite, biotite, albite, and K-feldspar - with carbon dioxide and water, can account for the average water composition of the Lower Niger. The proportion of the ionic components was also related to the occurrence of the respective element in the minerals.