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旨在从物理本质上简明地对各种潮汐观测进行地壳物性信息综合分析,以与地震孕育有关的,既能反映地壳的微变形,又能表征地壳介质弹性特性的参数勒夫数作为潮汐观测中的物理力学特征参量.用各种潮汐观测资料(线应变、面应变、体应变、倾斜、重力及水位固体潮等)对地表的观测勒夫数进行综合反演计算,以其变化的物理特性和形变特性开展区域孕震力学过程及地震前兆异常综合研究.文中讨论确定了在实际观测中以潮汐理论为基础,进行综合反演与计算地表二阶观测勒夫数的可行途径和方法.以川滇交界地区的各潮汐观测进行了勒夫数h2的实际综合反演计算,对丽江7.0级地震进行了初步的异常分析.结果表明,从丽江地震前的1994年开始,川滇地区较大范围出现勒夫数异常.以异常的演化图象看,其异常在这一地区由南向东南、北、西北迁移(震源区一直处于异常的“空区”),而最终于1995年12月在该区西北及丽江、永胜一带出现显著持续的异常区,其异常图象清楚地勾划出了未来发震危险区,显示效果较佳
This paper aims to comprehensively analyze the physical properties of the various tides from the perspective of physics in a concise way. Based on the Löw numbers of parameters related to earthquake breeding that reflect both the micro-deformation of the crust and the elastic properties of the crust, In the physical and mechanical characteristics of the parameters. Using various tide observation data (linear strain, surface strain, body strain, tilt, gravity and water level tide, etc.), the observed Lough numbers of the surface are comprehensively retrieved and calculated, and the regional pregnant Seismological Processes and Seismic Anomalies Comprehensive Study. The discussion in this paper determines the feasible ways and methods of comprehensive inversion and calculation of the second-order observed Lovs number based on tidal theory in the actual observation. Based on the tidal observations at the junction of Sichuan and Yunnan, the actual comprehensive inversion of Loew number h2 was performed and the anomalous initial analysis of the MS7.0 Lijiang earthquake was carried out. The results show that the Löw number anomalies occur in a large area of Sichuan-Yunnan region from 1994 before the Lijiang earthquake. In abnormal evolutionary images, the anomalies migrated from south to southeast, north and northwest in this area (the source area has been in an abnormal “empty area”), and finally in December 1995 in the northwest of the area and in Lijiang, Yongsheng area showed a significant continuation of the anomaly area, the anomaly image clearly outlines the future earthquake risk area, showing better results