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数字化前兆台网管理经验点滴 总被引：1，自引：0，他引：1
首都圈防震减灾示范工程项目的实施,使河北省地震局张家口中心台所辖的5个台站,地震前兆观测技术实现了综合化、数字化、自动化、遥测组网。该台网拥有一个台网中心、7个子台、28个主测项、11个辅助测项,日产出形变、电磁、流体科学的观测数据8万3千组。 地震前兆数字化遥测台网由多个台站多种手段组网而成,集前兆观测、数据采集、数据传输、数据处理为一体,实现了地震前兆观测数据的及时采集、传送也处理,这些功能的实现,都需要台网设备的正常工作做保证。现将我们在管理数字化前兆台网工作中的点滴经验介绍如下。 1 数字化前兆台站的第8… 相似文献
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防震减灾技术系统的建设与发展 总被引：6，自引：6，他引：6
阴朝民 《地震地磁观测与研究》2001,22(6):1-12
本文论述了甸防震减灾技术系统的建设与发展，分别从地震监测技术系统，地震信息网络系统，地震应急指挥技术系统以及地震紧急救援技术等四个方面论述了系统的现代化建设。重点介绍了地震及前兆数字化观测技术的发展以及数字地震及前兆台网的规模及作用。 相似文献
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国家防震减灾中心技术系统的建设 总被引：1，自引：0，他引：1
主要介绍了中国地震局在“九五”期间建立起来的国家防震减灾中心技术系统及它所包含的7个中心的基本功能和作用。该防震减灾中心技术系统,为我国地震和地球科学研究提供了各类基础性观测数据和信息。也是我国灾害性地震应急指挥的工作场所。 相似文献
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《地震地磁观测与研究》2009,30(5):152-220
在《地震地磁观测与研究》创刊30周年之际,将30年论著文章总目录奉献给广大的作者,读者,审稿专家,及多年关心,支持期刊发展的各位同仁。30年来地震科学的发展,尤其是观测技术的发展,为地震监测预报工作及防震减灾工作做出了贡献。 相似文献
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2000年9月27日至10月2日,新疆维吾尔自治区地震局一行3人在副局长张云峰的带领下,对哈萨克斯坦共和国地震研究所进行了为期6天的工作访问。访哈期间,张云峰副局长向哈方介绍了2000年中国国务院召开的全国防震减灾工作会议的情况。哈方库尔什格耶夫所长也向中国客人介绍了近年来哈萨克斯坦地震研究工作的进展和远景设想以及防震减灾工作情况,并对中国各级政府充分重视地震预报和防震减灾工作表示了极大的兴趣和赞赏。新疆地震专家组还参观了哈萨克斯坦吐尔根地震观测台,详细了解了该台形变、地下水等分析手段的观测环境、观测方法和观测仪器… 相似文献
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地震前兆数字化遥测台网由多个台站多个手段组网而成，集前兆观测、数据采集、数据传输、数据处理为一体，实现了地震前兆观测数据的及时采集、传送与处理、这些功能的实现都需要安全、稳定、可靠的供电环境做保证。 1 前兆台网对供电的要求 随着“九五”项目和首都圈防震减灾示范工程项目的实施，地震观测技术逐步实现了综合化、数字化、自动化，这是一个系统工程，我们从整个系统可靠工作这个角度，提出了供电系统需要解决的几个问题。 （1）安全可靠的供电：需要解决防雷击和其他原因引起的瞬间高电压冲击的问题。 （2）目前，地震数字… 相似文献
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《国际泥沙研究》2014,(4)
正Director:Shangfu Kuang,China Vice-directors:Chunhong Hu,China Duihu Ning,China Guangquan Liu,China The International Research and Training Center on Erosion and Sedimentation(IRTCES)was jointly set up by the Government of China and UNESCO on July 21,1984.It aims at the promotion of international exchange of knowledge and cooperation in the studies of erosion and 相似文献
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《中国科学:地球科学(英文版)》2014,(3)
正SCIENCE CHINA Earth Sciences,an academic journal cosponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China,and published by Science China Press and Springer,is committed to publishing high-quality,original results in both basic and applied research. 相似文献
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Richard D. Hey 《地球表面变化过程与地形》1979,4(1):59-72
Feedback mechanisms, which operate upstream through drawdown and backwater effects and downstream through sediment discharge are responsible for channel evolution. By combining these mechanisms with channel processes it euables a dynamic process-response model to be developed to simulate the initial evolution of straight gravel-bed channels. When erosion commences on a land surface, sediment entrained in the headwater reach by hydraulic action is selectively transported, deposited and reworked. This produces a damped oscillation between degradation and aggradation as the channel and valley respond to spatial and temporal variations in sediment calibre and hydraulic conditions. The initial cut and fill phases are responsible for valley incision and floodplain development while secondary and subsequent activity can produce river terraces. Eventually sediment entrainment in the headwaters declines as slopes are reduced. Subsequent channel evolution is relatively insignificant because it is dependent on local weathering activity producing material that can be transported on declining slopes. Therefore landforms produced during the initial phase of development, when local weathering was non-limiting, dominate the landscape. 相似文献
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Based on relocating the Jiujiang-Ruichang earthquake sequence which occurred on November 26, 2005 in Jiangxi Province with the double-difference （DD） algorithm and master event technique, the paper discusses the focal mechanism of the main shock （MsS.7） and the probable seismo-tectonics. The precise relocation results indicate that the average horizontal error is 0.31kin in a EW direction and 0.40kin in a NS direction, and the average depth error is 0.48kin. The focal depths vary from 8kin to 14kin, with the predominant distribution at 10kin - 12kin. The epicenter of the main shock is relocated to be 29.69^oN, 115.74^oE and the focal depth is about 10.Skin. Combining the predominant distribution of the earthquake sequence, the focal mechanism of the main shock and the tectonic conditions of N-E- and NW-strike faults growth in the seismic region, we infer that the main shock of the earthquake sequence was caused by a NW striking buried fault in the Rnichang basin. The nature of seismic faults needs to be further explored. 相似文献
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《水文科学杂志》2013,58(6)
Abstract The western reservoirs represent the principal groundwater system in Morocco. Demographic, industrial and agricultural developments during the last decade have markedly altered groundwater quality. The Mamora coastal aquifer system is among the Atlantic systems which are most heavily threatened by pollution. Agricultural and industrial activities, and rapid urban growth contribute to the pollution of the groundwater. Contamination transport is facilitated by a high permeability of the aquifer formations. In order to assess the actual groundwater quality of the Mamora aquifer and to understand the influence of the factors generating the pollution, an extensive multidisciplinary research programme is in progress, with hydrochemistry and microbiology playing essential roles. The present paper concerns the spatial distribution of physico-chemical parameters in the groundwater, subjected to domestic, industrial and agricultural pollution. Fifty-seven samples were analysed for several parameters (Ca2+, Mg2+, Na+, K+, Cl?, SO4 2?, HCO3 ?, NO3 ?, pH, electrical conductivity and temperature). The microbiological analysis of 143 samples reveals the presence of four kinds of indicator bacteria in the groundwater resources: faecal Streptococci, faecal coliform, Escherichia coli and Clostridium. The physico-chemical results and bacteriological monitoring show that the nitrate and bacteria concentrations exceed the maximum admissible levels, notably around pumping stations in the sectors of Sidi Taibi, Sidi Ahmed Taleb and Aïn Sbaâ. Contamination is generated by uncontrolled anthropogenic activities and accentuated by the high intrinsic vulnerability of the aquifer system. Several parameters appeared to exceed admissibility standards. Measures are recommended to prevent groundwater pollution in the region. 相似文献
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《中国科学:地球科学(英文版)》2014,(12)
正SCIENCE CHINA Earth Sciences,an academic journal cosponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China,and published by Science China Press and Springer,is committed to publishing high-quality,original results in both basic and applied research. 相似文献