河西地区重力动态变化的二维离散小波多尺度分解
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摘要
采用二维离散小波的多尺度分解技术 ,对 1994～ 1995年和 2 0 0 2～ 2 0 0 3年的河西地区重力动态变化进行分解 ,提取该地区不同层次的重力动态变化异常 ,结果反映了不同深度在一定尺度意义上的介质密度的动态变化分布
Dynamic gravity variation in Hexi region during 1994 1995 and 2002 2003 is decomposed by use of multi scale decomposition technique of 2 D discrete wavelet, and the anomalies of dynamic gravity variations at different levels are drawn, which reflect dynamic variation distribution of the media density in different depths on certain scale.
Dynamic gravity variation in Hexi region during 1994 1995 and 2002 2003 is decomposed by use of multi scale decomposition technique of 2 D discrete wavelet, and the anomalies of dynamic gravity variations at different levels are drawn, which reflect dynamic variation distribution of the media density in different depths on certain scale.
引文
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8 祝意青,胡斌,朱桂芝,等.河西地区重力场及其动态演化特征[J].大地测量与地球动力学,2003,23(4):44～48.8 ZhuYiqing,HuBin,ZhuGuzhi,etal.StudyongravityfieldanditsdynamicevolutionalcharacteristicsinHexiarea[J].JournalofGeodesyandGeodynamics,2003,23(4):44-48.(inChinese)
2 侯遵泽,杨文采.中国重力异常的小波变换与多尺度分析[J].地球物理学报,1997,40(1):85～95.
2 HouZunze,YangWencai.Wavelettransformandmulti-scaleanalysisongravityanomaliesofChina[J].ChineseJ.Geophy,1997,40(1):85-95.(inChinese)
3 杨文采,施志群,侯遵泽,等.离散小波变换与重力异常多重分解[J].地球物理学报,2001,44(1):48～53.
3 YangWencai,ShiZhiqun,HouZunze,etal.Discretewavelettransformformultipledecompositonofgravityanomalies[J].ChineseJ.Geophy,2001,44(1):48-53.(inChinese)
4 张燕,吴云,刘永启,等.潮汐形变资料中地震前兆信息的识别与提取[J].大地测量与地球动力学,2003,23(4):34～39
4 ZhangYan,WuYun,LiuYongqi,etal.Identificationandextractionofearthquakeprecursorfromtidaldeformationdata[J].JournalofGeodesyandGeodynamics.2003,23(4):34-39.(inChinese)
5 方盛明,张先康,嘉世旭,等.华北地区布格重力异常的多尺度分解特征与地震活动性[J].大地测量与地球动力学,2002,22(1):34～39.
5 FangShengming,ZhangXiankang,etal.Multi scalede compositionofbouguergravityanomalyandseismicactivityinNorthChina[J].JournalofGeodesyandgeodynamics,2002,22(1):34-39.(inChinese)
6 张永志,丁平,王继英,等.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,1997,17(1):26～32.
6 ZhangYongzhi,DingPing,WangJiying,etal.Relation shipbetweenwaveletanalysisresultsofgravityandearth quakesinHexiregion[J].CrustalDeformationandEarth quake,1997,17(1):26-32.(inChinese)
7 祝意青,梁伟锋,操启明,等.北祁连河西地区重力场变化及其与强震关系[J].地震,1999,19(4):345～351.
7 ZhuYiqing,LiangWeifeng,etal.GravityfieldvariationanditsrelationtostrongearthquakesinnorthernQilianHexiarea[J].Earthquake,1999,19(4):345-351.(inChinese)
8 祝意青,胡斌,朱桂芝,等.河西地区重力场及其动态演化特征[J].大地测量与地球动力学,2003,23(4):44～48.8 ZhuYiqing,HuBin,ZhuGuzhi,etal.StudyongravityfieldanditsdynamicevolutionalcharacteristicsinHexiarea[J].JournalofGeodesyandGeodynamics,2003,23(4):44-48.(inChinese)
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