方位角
交叉口(航空)
计算机程序
系列(地层学)
天文台
断层(地质)
断层面
平面(几何)
功能(生物学)
算法
计算机科学
应用数学
数学
大地测量学
地质学
几何学
工程类
地震学
物理
程序设计语言
航空航天工程
进化生物学
生物
天体物理学
古生物学
标识
DOI:10.1785/bssa0530010001
摘要
Abstract In its earthquake mechanism studies the Dominion Observatory has been producing solutions graphically, but a program based on a probability function defined by Knopoff has been written for the IBM 1620 which permits the best solution to be obtained by a series of successive approximations from a given first approximation. The program prints out the strike and dip of the two nodal planes, their standard errors, the azimuth and plunge of their line of intersection, and a list of the stations producing inconsistent data. Weights can be assigned to each station; in practice these weights would depend on the past reliablity of the station. The machine time required depends on the number of stations used, the accuracy of the first approximation and other factors; in general 20 to 30 minutes is required for a solution involving 30-40 stations.
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