水位、水氡小波分析中期异常提取方法
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摘要
利用小波分析方法在时间域和频率域都有较高分辨率的特性,建立了水位、水氡的小波中期异常提取的方法.该体系包括研究(预测)目标地震的确定、井(泉)和测项的初选、小波异常的提取及异常性质的鉴定等7个步骤.采用小波异常提取方法,研究了华北、四川及邻区、海南多年积累的震例资料,分析了水位、水氡小波异常与地震活动之间的关系,给出了上述3个地区中期小波异常的时间分布特征.小波异常的超前时间,可作为发震时间的预测指标,为这3个区域的实际震情判定提供依据.
Noticing that the wavelet analysis possesses a characteristic of high resolution in time and frequency domain,this paper develops a method of extracting wavelet medium-term anomaly from water radon and water level observation.The extraction process includes,through research,deciding the objective earthquake expected to be predicted,selecting testing items and observation wells,extracting wavelet anomaly,identifying the property of the precursor anomaly,etc.(seven steps).With the methodology of extraction of wavelet anomaly,we have studied large amount of earthquake materials in North China,Sichuan and its vicinity,and Hainan.After analyzing the relation between the earthquakes and the anomaly of water level and radon,we provided the characteristic time distribution of wavelet anomalies in these three regions.Moreover,the advanced time of the wavelet anomaly can be regarded as an indicator for forecasting an earthquake.This indicator would be helpful in analyzing earthquake situation in practice.
Noticing that the wavelet analysis possesses a characteristic of high resolution in time and frequency domain,this paper develops a method of extracting wavelet medium-term anomaly from water radon and water level observation.The extraction process includes,through research,deciding the objective earthquake expected to be predicted,selecting testing items and observation wells,extracting wavelet anomaly,identifying the property of the precursor anomaly,etc.(seven steps).With the methodology of extraction of wavelet anomaly,we have studied large amount of earthquake materials in North China,Sichuan and its vicinity,and Hainan.After analyzing the relation between the earthquakes and the anomaly of water level and radon,we provided the characteristic time distribution of wavelet anomalies in these three regions.Moreover,the advanced time of the wavelet anomaly can be regarded as an indicator for forecasting an earthquake.This indicator would be helpful in analyzing earthquake situation in practice.
引文
车用太,王吉易,李一兵,鱼金子.2004.首都圈地下流体监测与地震预测[M].北京:气象出版社:107--128.
范雪芳,王吉易,张淑亮,马朝辉.2007.山西及其邻区地下流体强震中期和中短期预测时间方法研究[J].西北地震学报,29(2):177--182.
敬少群,王佳卫,童迎世.2002.小波变换在少震、弱震区地下水位数据分析中的应用[J].华南地震,22(2):9--15.
刘耀炜,杜建国,王长岭.2002.地下水化学参量中短期前兆指标体系及其预报效能评价[M]∥罗兰格,韩渭宾,刘耀炜主编.强地震中短期预报方法及其效能研究.北京:地震出版社:180--211.
裴韬,周成虎,汪闽.2004.用二进小波分析方法对华北地区强震活动期的研究[J].地震研究,27(11):37--42.
宋超,黄民翔,叶剑斌.2002.小波分析方法在电力系统短期负荷预测中的应用[J].电力系统及其自动化学报,11(3):8--12.
宋治平,武安绪,王梅,倪友忠,朱家苗,宋先月,周华根,赵镇岭.2003.小波分析方法在形变数字化资料处理中的应用[J].大地测量与地球动力学,23(4):21--27.
许绍燮.1989.地震预报能力评分[M]∥地震学专集.北京:学术书刊出版社:586--589.
张凤君.2007.东北地震区地震趋势的小波分析[J].地震研究,30(2):137--141.
张永志,丁平王,继英梁,梁伟锋,胡亚轩,王文萍.1997.河西重力变化的小波分解与地震活动关系的研究[J].地壳形变与地震,17(3):26--32.
郑治真,沈萍,谢水.1996.从Gabor变换到小波分析[J].中国地震,12(3):237--242.
范雪芳,王吉易,张淑亮,马朝辉.2007.山西及其邻区地下流体强震中期和中短期预测时间方法研究[J].西北地震学报,29(2):177--182.
敬少群,王佳卫,童迎世.2002.小波变换在少震、弱震区地下水位数据分析中的应用[J].华南地震,22(2):9--15.
刘耀炜,杜建国,王长岭.2002.地下水化学参量中短期前兆指标体系及其预报效能评价[M]∥罗兰格,韩渭宾,刘耀炜主编.强地震中短期预报方法及其效能研究.北京:地震出版社:180--211.
裴韬,周成虎,汪闽.2004.用二进小波分析方法对华北地区强震活动期的研究[J].地震研究,27(11):37--42.
宋超,黄民翔,叶剑斌.2002.小波分析方法在电力系统短期负荷预测中的应用[J].电力系统及其自动化学报,11(3):8--12.
宋治平,武安绪,王梅,倪友忠,朱家苗,宋先月,周华根,赵镇岭.2003.小波分析方法在形变数字化资料处理中的应用[J].大地测量与地球动力学,23(4):21--27.
许绍燮.1989.地震预报能力评分[M]∥地震学专集.北京:学术书刊出版社:586--589.
张凤君.2007.东北地震区地震趋势的小波分析[J].地震研究,30(2):137--141.
张永志,丁平王,继英梁,梁伟锋,胡亚轩,王文萍.1997.河西重力变化的小波分解与地震活动关系的研究[J].地壳形变与地震,17(3):26--32.
郑治真,沈萍,谢水.1996.从Gabor变换到小波分析[J].中国地震,12(3):237--242.
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