影响尾波Q值数据结果的算法因素分析

英文篇名：ALGORITHM FACTORS ANALYSIS ON THE EFFECTING CODA Q VALUE
中文刊名：东北地震研究
英文刊名：Seismological Research of Northeast China
作者：朱新运
英文作者：ZHU Xin-yun~(1 ; 2)(1.Earthquake Administration of Zhejiang province ; Zhejiang Hangzhou 310013 ; China ; 2.Institute of Geophysics ; CEA ; Beijing 100081 ; China)
中文关键词：数据采样 ; 噪声 ; 滤波器 ; Q值
英文关键词：data sampling ; noise ; filter ; coda Q value
出版日期：2006-09-30
机构：浙江省地震局浙江杭州310013,中国地震局地球物理研究所,北京100081
年：2006
期：03
出版单位：东北地震研究

摘要

基于单次散射Aki模型,分别讨论了数据采样、噪声、滤波器性能等因素对Q值数据结果的影响。作为实例,本文对浙江及安徽台网记录的37次ML3.0至ML4.3之间地震的数字地震波资料进行了计算,通过设置合理的与影响因素相关的参数,获得浙江省区域地震尾波平均Q值,结果较好地反映了相关区域地震活动性特征。
On the basis of the signal scatter Aki model,the effect of algorithm factors(including the data sampling,noise,filter and so on) on coda Q value was respctiely disccussed in detail.The digital seismic wave data of 37 earthquakes with 3.0 ≤M_L≤4.3 recorded by Zhejiang and Anhui Seismic network were calculated.The average coda Q value of Zhejiang area were obtained by setting the reasonable parameter which is correlated to the effecting factor.This result reflected well the sismisity of correlative area.

引文

[1]Aki K.Analysis of seismic coda of local earthquakes as scattered wave.J Geophys Res,74:P615-631,1969.
    [2]Aki K,Chouet B.Origin of Coda wave:source,attenuation and sattering effects,J Geophys Res,80:P3322-3342,1975.
    [3]Pulli J J.Attenuation of coda waves in New England.Bull.Seis.Soc.Amer,74:P1149-1166,1984.
    [4]Rautain T G,Khalturin V I.The use of the coda for determiNation of earthquake source spectrum.Bull Seis Soc Amer,75:P1371-1382,1978.
    [5]Kvamme L B,Havskov J.Qin Southern Norway.Bull Seis Soc Amer,79:P1575-1588,1989.
    [6]李白基,等.云南姚安地区尾波衰减[J].地震学报,26(1),P47-52,2004.
    [7]Amerbeh W B,Fairhead J D.Coda estimates in the mount CAmereroon Volcanic region West Africa.Bull Seis Soc Amer,79:P1589-1600,1989.
    [8]秦嘉政,等.1985年禄劝地震余震尾波Q值的某些研究[J],地震学报,9,P239-252,1987.
    [9]刘万琴,等.北京地区尾波Q值研究[J].地震学报,12,442-447,1990.
    [10]张天中,等.滇西实验场区的Q值极其随时间窗变化[J].地震学报,12,P12-21,1990.
    [11]曾健,等.成都遥测台网区域尾波衰减特性及Qc值研究[J].地震学报,19(3),P246-253,1997.