上海深井地震综合观测地磁资料分析
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摘要
运用崇明长江农场台和浦东张江台新建地震综合深井地磁三分量资料,宋用小波变化方法,研究地磁场井下观测方式、数据质量和噪声特性。结果表明:①深井地磁观测资料日变形态明显,与地面观测资料一致性较好;②深井地磁观测能滤除大部分空间变化磁场产生的扰动;③深井观测的背景噪声幅度小,扰动频段集中。
In this paper,the observation data that the 3-component geomagnetic field recorded in deep borehole in Changjiang Nongchang Station,Chongming and Zhangjiang Seisnoc Station,Pudong were analyzed by the method of wavelet transform.We discussed the observation way of geomagnetic field in deep borehole,data quality and noise characteristics.The result shows:①there is obvious daily variation form and consistency for the data observed in deep borehole;②the deep borehole observation can filter more magnetic interference that comes from space;③the amplitude of noise that recorded by deep borehole observation is smaller than that of the ground-based observation,and the interference frequency range is more concentrated.
引文
高静怀,汪文秉,等.小波变换与信号瞬时特征分析[J].地球物理学报,1997,40(6):821-832.
    刘明才.小波分析及其运用[M].北京:清华大学出版社,2005:11-15.
    李周波,王祝文.德国大陆科学钻探计划的测井技术[J].国外地质勘探技术,1998,4(2):24-30.
    欧阳祖熙,张钧,陈征,等.地壳形变深井综合观测技术的新进展[J].国际地震动态,2009,11(371):1-13.
    邱颖,席继楼.小波方法在地电场干扰处理中的分析研究[J].地震,2002,29(2):57-63.
    王祝文,刘菁华,等.KTB深部地壳实验室[J].世界地质,1999,18(4):96-99.
    徐纪人,赵志新.深井地球物理长期观测的最新进展及其前景[J].地球科学(中国地质大学学报),2006,31(4):557-563.
    徐文耀.地磁学[M].北京:地震出版社,2003:16-17.
    许志琴.中国大陆科学钻探工程的科学目标及初步成果.岩石学报,2004,20(1):1-8.
    郑治真,沈萍,杨选辉,等.小波变换及其MATLAB工具的应用[M].北京:地震出版社,2001:94-98.
    Ishii H,Yamauchi T,Asai Y,et al.Continuous multi-component monitoring of crustal activities by a newly developed instrument installed in a 1200 m depth borehole-The deepest multiple observation in the world consisting of stress,strain,tilt,seismic wave,geomagnetism,temperature[C].IUGG 2003 Poster,Sapporo,Japan.
    MarkZoback,Stephen Hickman,William Ellsworth.San Andreas fault observatory at depth(SAFOD)[C].New full-proposal,ICDP-04/04,2004.

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