摘要
结合清原地震台台站短水准 1 985年前后观测成果精度的变化 ,总结了提高台站短水准观测成果精度的几点主要成功措施。它们是 :选择最佳视线长度 ;拓宽线路、增高视线、减弱折光影响 ;改造仪器站条件 ;固定观测时间和人员 ;确定好观测光段。
Summarizing the improvement of the observational result precision of short-range leveling at Qingyuan seismic station in 1985,some successful measures on how to improve the observational result precision of stations short-range leveling are given.Main of the measures are:to select the optimum line length of sight,to widen the line of sight,to raise the line of sight,to reduce the influence of astronomical refraction,to remake the condition of the instrument station,to fix the surveying time and the surveyor and to define the period of observation time.
出处
《东北地震研究》
2001年第3期20-24,共5页
Seismological Research of Northeast China
关键词
台站短水准测量
成果精度
最佳视线长度
折光影响
地震台
观测环境
The station's short-range leveling
Result precision
Optimum line length of sight
Influence of astronomical refraction
