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li gao zai quan qiu chui zhi ji zhun zhong de zuo yong ji qi jing que tui qiu
Author(s): 
Pages: 2-7
Year: Issue:  2
Journal: HAIYANG CEHUI

Keyword:  高程系统全球垂直基准空间大地测量重力;
Abstract: 本文指出了只有在同一个重力位等位面上具有相同高程的力高(动力高)才是全球垂直基准(GVD)的量度,若用正常高或正高表示GVD,由此引起的误差可能大于26cm;研究了用空间技术结合重力测量确定GVD的方法及其误差,且误差主要来自由重力计算的高程异常,按本文的计算该项误差为±12.1cm,而同一点上GVD的误差为±13.1cm;对如何精确推求大地水准面上的位(Wo)与正常位(U0)之差也作了探讨.
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