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介绍了南宁市城市二等水准测量的概况,通过二等水准网的数据处理与精度分析,认为南宁市二等水准网成果在精度上较好地满足了规范要求,不仅可在市域范围作为三、四等及等外水准测量等级各种高程控制测量的基准,而且可用于南宁市区域似厘米级大地水准面确定。 更多还原

【Abstract】 The Second Grade Level Net in Nanning were described in this article.The precision results of the Second Grade level better met regulatory requirements through the data processing and precision analysis.It not only provided the basis for a variety of vertical control survey in the city,and can be used to determine the regional centimeter geoid. 更多还原