论我国高程基准面的确定问题  

ON DETERMINATION OF THE ELEVATION DATUM

作　　者：陈宗镛[1] 汤恩祥[2] 

机构地区：[1]山东海洋学院 [2]中国人民解放军57653部队

出　　处：《山东海洋学院学报》1980年第1期15-25,共11页

摘　　要：本文论述计算平均海面的原理和方法,以便确定出我国区域性大地水准面(高程基准面)。利用给定验潮站的海面19年的每小时记录,按照每天24小时观测直接平均和X_0、Z_0、N_0、G_0滤波器,分析结果表明,计算精度可达1mm,基本满足区域大地水准测量的要求。The purpose of this paper is t o deal with the principle and method of computing mean sea level so as to determine the reference plane(elevation datum)for the local geodetic leveling in China With the sea level records for 19 years running at a given tide gage station,treated as time series , the mean sea level have been computed by the straight average of the 24-hour observations every day and by Xo ,Zo ,No,G.filters. The analysis of the results shows that the accuracy of computa-tion may attain 1mm, which basicalyt meets the reguirement for the local geodetic leveling.

关 键 词：高程测量 基准面 验潮站 滤波器 计算精度 平均海面 中数法 余弦函数 

分 类 号：P216[天文地球—测绘科学与技术] O174[理学—数学]