重力潮汐观测资料的改正和异常背景值的显示问题
ON THE CORRECTION TO OBSERVATION OF GRAVITY TIDES AND THE INDICATION OF GRAVITY ANOMALY
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摘要: 本文系统地研究了重力潮汐观测的改正和作为地震预报研究的异常背景值的显示问题.文章讨论了仪器弹性系统流变模型改正和惯性改正以及海洋潮汐等的资料精确化问题和气压、地下水等对重力潮汐观测的影响,并给出了相应的结果.文章还讨论了台站重力测量中非潮汐信息的提取问题,从理论上论证并对比了几种滤波器的实质.Abstract: The problems of correcting gravity tidal observations and indication of gravity anomalies used in earthquake prediction in China are systematically studied in this paper. The correc-ton problems of the theological model of the instrument, inertia of the earth and the effects of the ocean loading, air pressure, underground water on gravity tadal recording data are also discussed in detail, the related results are also given in the paper. The problem of indicating non-tidal information in stational gravity data is discussed. The perporties of several different data processing filters are compared from the theoretical point of view.
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[1] Melchior, P., 1978. The Tides of the Planet Earth, Pergamon Press. 85——120,
[2] Li Ruihao and Fu Zhaozhu, 1983. Local gravity variations before and after the Tangshan Earthquake (M二7.8) and the dilatation process, Tectonophysics, 97,159—— 169.
[3] Li Ruihao, Sun Heping, Chen Dongsheng, Jian Daxi and Fu Zhaozhu, 1985. Preliminary studies on relations between the space distribution characteristics of the tidal factor delta and the crustal structure in China, Proceedings of the tenth International Symposium on Earths Tides,669——678.
[4] 李瑞浩 1988.重力学引论.地震出版社.北京.248——270.
[5] 李瑞浩 1989.重力场时I旬变化应用于地震预报研究的原理和实践,地震监测与预报方法清理成果汇编.地晨出版社.北京.92——104.
[6] 李瑞浩、陈冬生、付兆珠、魏望生、鹅大西,1984.中国固体潮向量空间分布特征的研究.地晨学报,6,223 ——240.
[7] 李瑞浩、江先华,1988.不同地球模型和数值方法对重力负荷效应计算的影响,地球物理学报,31, 478——482,
[8] 李瑞浩、徐菊生、陈振邦、魏望生,1983.组合滤波在标定重力仪灵敏度中的应用。地球物理学报,26,468——478,
[9] 李瑞浩、付兆珠,1984.两种组合滤波效能的研究.地震研究,7,217——222,
[10] Li Ruihao, Sun H eping, Hu Yenchang, 1989. Investigation of gravity variation associated with crustal deformation of the tianjin area before and after the Tangshaa earthquake. Tectonophysict,113, 167.[1] Melchior, P., 1978. The Tides of the Planet Earth, Pergamon Press. 85——120,
[2] Li Ruihao and Fu Zhaozhu, 1983. Local gravity variations before and after the Tangshan Earthquake (M二7.8) and the dilatation process, Tectonophysics, 97,159—— 169.
[3] Li Ruihao, Sun Heping, Chen Dongsheng, Jian Daxi and Fu Zhaozhu, 1985. Preliminary studies on relations between the space distribution characteristics of the tidal factor delta and the crustal structure in China, Proceedings of the tenth International Symposium on Earths Tides,669——678.
[4] 李瑞浩 1988.重力学引论.地震出版社.北京.248——270.
[5] 李瑞浩 1989.重力场时I旬变化应用于地震预报研究的原理和实践,地震监测与预报方法清理成果汇编.地晨出版社.北京.92——104.
[6] 李瑞浩、陈冬生、付兆珠、魏望生、鹅大西,1984.中国固体潮向量空间分布特征的研究.地晨学报,6,223 ——240.
[7] 李瑞浩、江先华,1988.不同地球模型和数值方法对重力负荷效应计算的影响,地球物理学报,31, 478——482,
[8] 李瑞浩、徐菊生、陈振邦、魏望生,1983.组合滤波在标定重力仪灵敏度中的应用。地球物理学报,26,468——478,
[9] 李瑞浩、付兆珠,1984.两种组合滤波效能的研究.地震研究,7,217——222,
[10] Li Ruihao, Sun H eping, Hu Yenchang, 1989. Investigation of gravity variation associated with crustal deformation of the tianjin area before and after the Tangshaa earthquake. Tectonophysict,113, 167.
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