基于图形界面的波形相关法拾取远震相对走时残差
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摘要
利用图形界面操作集成两种波形相关法(多道互相关和自适应叠加)拾取远震走时残差,在该软件包中地震学研究者通过轻松点击鼠标等基本操作即可实现数据的预处理、地震波形的质量控制、走时残差结果的显示及对比分析等操作,提高远震震相走时残差的拾取效率和准确度。
As the total number of seismic station and seismic data increases quickly,it affords much data for seismologist to carry out high resolution tomography by seismic wave traveltime.And it urgently needs a fast and accurate method to pick up the traveltime.In this paper,we use Graphic User Interface(GUI) to integrate two methods,multi-channel cross-correlation and adaptive stacking,which are all teleseismic traveltime residuals picking up methods by waveform correlation.By this package seismic researchers can easily process the data,control the quality of the seismic waveform,view,compare and analyze the traveltime residuals just by the basic mouse button clicking.It improves the efficiency and precision very obviously.
As the total number of seismic station and seismic data increases quickly,it affords much data for seismologist to carry out high resolution tomography by seismic wave traveltime.And it urgently needs a fast and accurate method to pick up the traveltime.In this paper,we use Graphic User Interface(GUI) to integrate two methods,multi-channel cross-correlation and adaptive stacking,which are all teleseismic traveltime residuals picking up methods by waveform correlation.By this package seismic researchers can easily process the data,control the quality of the seismic waveform,view,compare and analyze the traveltime residuals just by the basic mouse button clicking.It improves the efficiency and precision very obviously.
引文
常旭,刘伊克.Hausdorff分数维识别地震道初至走时[J].地球物理学报,1998,41(6):826-832.
常旭,刘伊克.地震记录的广义分维及其应用[J].地球物理学报,2002,45(6):839-846.
Welch B B著,王道义,等译.Tcl/Tk组合教程[M].北京电子工业出版社,2001.
Boschetti F,Dentith M D,List R D.A fractal-based algorithm for detecting first arrival on seismic traces[J],Geophysics,1996,61(4):1095-1102.
Gelchinsky B and Shtivelman V.Automatic picking of first arrivals and parameterization of traveltime curves[J],Geophys Prosp,1983,31:915-928.
Kennett B L N,Engdahl E R.Traveltimes for global earthquake location and phase identification[J].Geophys J Int,1991,105:429-465.
Kennett BLN,Engdahl E R,Buland R.Constraints on seismic velocities in the Earth from traveltimes[J].G eophys J Int,1995,122:108-124.
Rawiinson N,Kennett B L N.Rapid estimation of relative and absolute delay times across a network by adaptive stacking[J].Geophys J Int,2004,157:332-340.
VanDecar J C,Crosson R S.Determination of teleseismic relative phase arrival times using multi-channel cross-correlation and least squares[J].Bull Seismol Soc Am,1990,80(1):150-169.
Wessel P,Smith WHF.New version of the Generic Mapping Tools released[J].EOS Trans AGU,1995,76(33):329.
Zhao D,Hasegawa A,Kanamori H.Deep structure of Japan subduction zone as derived from local,regional,and teleseismic events[J].J Geophys Res,1994,99(B11),22 313-22 329.
常旭,刘伊克.地震记录的广义分维及其应用[J].地球物理学报,2002,45(6):839-846.
Welch B B著,王道义,等译.Tcl/Tk组合教程[M].北京电子工业出版社,2001.
Boschetti F,Dentith M D,List R D.A fractal-based algorithm for detecting first arrival on seismic traces[J],Geophysics,1996,61(4):1095-1102.
Gelchinsky B and Shtivelman V.Automatic picking of first arrivals and parameterization of traveltime curves[J],Geophys Prosp,1983,31:915-928.
Kennett B L N,Engdahl E R.Traveltimes for global earthquake location and phase identification[J].Geophys J Int,1991,105:429-465.
Kennett BLN,Engdahl E R,Buland R.Constraints on seismic velocities in the Earth from traveltimes[J].G eophys J Int,1995,122:108-124.
Rawiinson N,Kennett B L N.Rapid estimation of relative and absolute delay times across a network by adaptive stacking[J].Geophys J Int,2004,157:332-340.
VanDecar J C,Crosson R S.Determination of teleseismic relative phase arrival times using multi-channel cross-correlation and least squares[J].Bull Seismol Soc Am,1990,80(1):150-169.
Wessel P,Smith WHF.New version of the Generic Mapping Tools released[J].EOS Trans AGU,1995,76(33):329.
Zhao D,Hasegawa A,Kanamori H.Deep structure of Japan subduction zone as derived from local,regional,and teleseismic events[J].J Geophys Res,1994,99(B11),22 313-22 329.
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