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概述了青岛市地震前兆观测系统,结合1992年以来青岛周边地区发生的4次Ms≥5.0地震分析了前兆观测的映震能力,以期对青岛市地震监测预报提供参考。 相似文献
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对青岛市地震前兆观测现状及成因进行了系统分析,提出了青岛市地震前兆工作发展和数字化地震前兆台网建设的建议,希望对地震前兆工作发展有所帮助。 相似文献
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地震前兆台网对地震监测具有重要意义,本文以完善地震台网建设为目标,从台站站点分布、测项配置、传输技术、系统功能诸方面对青岛市地震前兆台网进行,研究认为该台网台站分布合理、测项现代化程度较高、传输安全性高,系统功能全面,可有效提升青岛市地震监测能力,但同时该台网也存在数据共享方面的不足,需在以后的建设中进一步寻找数据安全与数据共享之间的平衡点。 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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通过对高台台站地震前兆数字化系统通信故障的检查与处理。从地震前兆数字化系统的组成部分及接口界面,阐述了地震前兆数字化公用设备的一些常见故障的检查及处理。地震前兆仪器通过现场总线与DSC-2型数据采集器连接,通过有线,无线调制解调器入网后实现地震前兆台网对数据的收集。 相似文献
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各类地震前兆异常群体信息熵与地震的关系 总被引:6,自引:0,他引:6
本文利用“专家系统”的思想对和地震前兆异常事件进行综合评估,以每一异常的最可能发震时间来计算发震概率,利用各类地震前兆常群体信息熵研究了系统熵值与地震的关系,研究表明,在震前熵值减少,系统向有序方向发展。对山东和山西地区的各类地震前兆异常群体信息熵研究表明,在泽5.9级和大同-阳离6.1级地震前,都出现了明显的减熵有序变化。 相似文献
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At present, there is less theoretical research and practical experience in the aspect of ultra-shallow seismic exploration to the target layers at depths of only tens of meters both at home and abroad. Seismic exploration plays an important role in the location of faults and active structures, but the depth dozens of meters below the ground surface is the blind area of any kind of deep and shallow seismic exploration. Starting from the point of view of detecting urban active faults, and using related theories and methods of geology, geophysics and mathematics, the paper discusses the preconditions for acquiring efficient ultra-shallow seismic survey results in complicated geological backgrounds in Qingdao. Taking the Qingdao area as an example in this paper, we study the depth condition of Quaternary deposits, and apply 4-8 stacking folds to satisfy the requirement to get the exploration results with high-resolution and high-SNR. Preliminary results reveal that selecting a proper surveillance layout is one of the keys to acquire authentic exploration results in ultra-shallow P-wave reflection exploration. Our results also show that ultra-shallow seismic reflection method in detecting faults in the Qingdao area has good application prospects. 相似文献
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分时段研究降雨、钻孔水位、工程施工等因素对青岛地震台体应变的影响,研究结果表明:钻孔水位反映区域地下水主要由降雨补给,降雨下渗改变地下水状态,并影响体应变观测;青岛体应变与钻孔水位的相关性及其周期特性均在2015年前后出现变化,可能与2015—2016年降雨偏少及工程施工有关;2018年1月17日台站钻孔施工很可能改变了体应变周围岩石孔隙环境,并扩大孔隙压力作用系数,可解释2018年3月以来水位小幅上升引起的体应变显著压性上升现象,受钻孔施工的影响,体应变与钻孔水位相关性的滞后特征明显减弱。 相似文献
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Research on the impact assessment of urbanization on air environment with urban environmental entropy model: a case study 总被引:2,自引:2,他引:0
Qingsong Wang Xueliang Yuan Chunyuan Ma Zhen Zhang Jian Zuo 《Stochastic Environmental Research and Risk Assessment (SERRA)》2012,26(3):443-450
A new concept of urban environmental entropy was introduced to investigate the effect of urbanization on air environment considering
the fact that rapid development of urbanization may have negative influence on the whole air environment system. The urban
environmental entropies which were built based on the generalized thermodynamic entropy and the generalized statistic entropy,
respectively. These two entropy models have been used to analyze the relationship between the development of urbanization
and air environment. The negative entropy flow mechanism was proposed to reveal the advantages and approaches of regional
cities in improving air environment system. A case study on 17 cities in Shandong Province of China showed that the values
of urban environmental entropy were negative in most cities from 2001 to 2008, which implies that there is a positive correlation
between the development of urbanization and air environment and that is a negative entropy development level in Shandong Province
of China. In 2008, the urbanization of Qingdao city and Jinan city improved their air environments. Moreover, restraints for
both cities in air environment improvement were recognized according to the analysis of negative entropy flow mechanism. 相似文献
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近年来,青岛市防震减灾事业取得了很大的进展,其中防震减灾宣传工作起了重要的作用。文章以青岛市的防震减灾宣传实践为例,总结了近几年来青岛市防震减灾宣传工作的特点和对策。 相似文献