跨海高程传递三角高程数据处理及质量分析

对跨河水准测量和跨海高程传递三角高程测量的观测方法和数据处理进行了比较.简单介绍了4处跨海高程传递测区的概况,并提出一种针对“光段差互差”的评估方法.对4处跨海点三角高程实测数据进行质量分析和平差计算,结果表明:除实验区外,跨海三角高程测量的偶然中误差可以达到二等水准测量的精度;数据质量分析结果表明,满足二等水准限差的外业观测数据的有效率为50％左右;满足三等水准限差的数据有效率为90％左右.

Data Dealing and Quality Analysing of the Trigonometric Leveling Over the Sea

Based on introducing the general situation of the four surveying areas of elevation-passing,all of which have finished the actual observation,and a new method of evaluating the data quality is proposed.After evaluating and calculating,the result indicates that:the mean square error of the four areas could reach the level of the second class leveling;only about 50 percent of the original observing data satisfy the requirements of the second class leveling;90 percent could meet the third class leveling needs.