华北地下水位强震短期异常演化及前兆判别标志研究
|
摘要
对地下水位地震前兆异常开展了参数提取方法的研究, 并以其提取的结果为输入, 对1984~2002年华北地区地下水位异常参数分布做了全时空扫描, 继而将全部图像与华北地区构造活动性量化评估的数字化图像进行了叠加, 实现了地下水位异常动态扫描与区域构造活动性背景的结合。在此基础上, 对1985年以来华北地区5 级以上地震前的地下水位短期图像演化情况做了全面分析, 提取出了判别异常区的指标以及地震短期异常区的演化特征, 并最终建立了华北地区强震前地下水位短期前兆的判别标志。
In this paper, the authors studied a method, in which the anomaly parameter of seismic precursor is abstracted form the observed data of underground water level, and the spatial distribution patterns of the anomaly parameters in North China was scanned from 1984 to 2002 by using the parameters abstracted as inputs, and than, every pattern was superposed with the numerical pattern or quantitative evaluation about the tectonic activity and seismic risk in North China, to realize combining the spatial scanning of precursor anomaly with active tectonic background. On the above-mentioned basis, the analysis was made entirely for the evolution of short-term patterns of underground water before (M_S5.0) shocks which took place since 1985 in North China, so the discriminative criteria of anomaly zones and the characteristics of spatial evolution of short-term precursors of underground water level before strong shocks in North China was established.
In this paper, the authors studied a method, in which the anomaly parameter of seismic precursor is abstracted form the observed data of underground water level, and the spatial distribution patterns of the anomaly parameters in North China was scanned from 1984 to 2002 by using the parameters abstracted as inputs, and than, every pattern was superposed with the numerical pattern or quantitative evaluation about the tectonic activity and seismic risk in North China, to realize combining the spatial scanning of precursor anomaly with active tectonic background. On the above-mentioned basis, the analysis was made entirely for the evolution of short-term patterns of underground water before (M_S5.0) shocks which took place since 1985 in North China, so the discriminative criteria of anomaly zones and the characteristics of spatial evolution of short-term precursors of underground water level before strong shocks in North China was established.
引文
[1] 张肇诚,罗兰格,李海华,等.中国震例(1966~1975年)[M].北京:地震出版社.1988.
[2] 张肇诚,郑大林,徐京华,等.中国震例(1986~1988年)[M].北京:地震出版社.1999.
[3] 张肇诚,郑大林,徐京华,等.中国震例(1989~1991年)[M].北京:地震出版社.2000.
[4] 陈棋福,郑大林,车时,等.中国震例(1992~1994年)[M].北京:地震出版社.2002.
[5] 陈棋福,郑大林,刘桂萍,等.中国震例(1995~1996年)[M].北京:地震出版社.2002.
[6] 中国地震局监测预报司.一九九八年张北地震[M].北京:地震出版社,1999.99124.
[7] 郑文俊,田山,邵永新,等.前兆异常动态扫描与区域构造活动背景结合的研究[J].中国地震,2003,19(3):266278.
[8] 陆远忠,李胜乐,邓志辉,等.基于GIS的地震分析预报系统[M].成都:成都地图出版社.2002.
[2] 张肇诚,郑大林,徐京华,等.中国震例(1986~1988年)[M].北京:地震出版社.1999.
[3] 张肇诚,郑大林,徐京华,等.中国震例(1989~1991年)[M].北京:地震出版社.2000.
[4] 陈棋福,郑大林,车时,等.中国震例(1992~1994年)[M].北京:地震出版社.2002.
[5] 陈棋福,郑大林,刘桂萍,等.中国震例(1995~1996年)[M].北京:地震出版社.2002.
[6] 中国地震局监测预报司.一九九八年张北地震[M].北京:地震出版社,1999.99124.
[7] 郑文俊,田山,邵永新,等.前兆异常动态扫描与区域构造活动背景结合的研究[J].中国地震,2003,19(3):266278.
[8] 陆远忠,李胜乐,邓志辉,等.基于GIS的地震分析预报系统[M].成都:成都地图出版社.2002.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心