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本文是在1983年完成的用于多层地壳模型定位程序的试算和使用过程中,对一些遗留的及新发现的问题作的研究,同时对程序作了相应的改进完善,使功能更趋完备,适应常规分析处理的需求而编制的。主要改进包括临界距离附近台站记录的清晰可靠的莫霍面反射波P_n、S_n参与定位,考虑定位模型中含有任意个低速或高速夹层的情况,Jacobi矩阵逐列归一化处理,及对定位震相的检验和调整。对震级测定考虑了只测定震级不定位等情况。使用多功能程序,台网内及边缘附近90%地震可由计算机完成,精度明显提高,震源深度可信度大幅度增加,速度大大加快,月报目录的汇编审查也做到高质量、快速度。
This article is a study of some of the remaining and newly discovered problems in the trial and application of multi-layer crustal model positioning procedures completed in 1983, and at the same time improved and improved the procedures accordingly Complete, to adapt to the needs of routine analysis and preparation of the preparation. The main improvements include the clear and reliable reflection of Moho reflections P_n and S_n recorded by stations near the critical distance in the localization. Considering that the positioning model contains any low-speed or high-speed sandwiches, the Jacobi matrix is normalized by columns and normalized, Phase inspection and adjustment. The determination of magnitude takes into account only the determination of magnitude and so on. Using multi-function programs, 90% of earthquakes within the network and near the edge can be completed by computer, the precision is obviously improved, the credible degree of focal depth is greatly increased, the speed is greatly accelerated, and compilation and review of the monthly catalog also achieves high quality and fast speed.