| 基于EGM2008重力场模型的松原灌区大地水准面精化 |
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| 引用本文： | 邱中军,羊远新,吴琼.基于EGM2008重力场模型的松原灌区大地水准面精化[J].测绘与空间地理信息,2015(4):213-216. |
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| 作者姓名： | 邱中军 羊远新 吴琼 |
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| 作者单位： | 1. 吉林省水利水电勘测设计研究院,吉林长春,130012;2. 空军工程设计研究局,北京,100068;3. 吉林大学地球探测科学与技术学院,吉林长春,130026 |
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| 摘 要： | 以松原灌区GPS控制网为例,采用高程异常直接拟合和插值法,以及基于EGM2008重力场模型和移去-计算-恢复技术的残差二次曲面拟合和插值法,精化了测区大地水准面。首先简要介绍了研究区数据,进而探讨了高程异常的获取,在此基础上,详细介绍了二次曲面拟合的大地水准面精化和空间插值法大地水准面精化方法,结果表明,EGM2008重力场模型精度较高,对精化局域和国家大地水准面具有重要意义。
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| 关 键 词： | EGM2008 大地水准面精化 二次曲面拟合 空间插值 |
Geoid Refinement ofS ongyuan Irrigation Area Based on EGM2008 |
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| QIU Zhong-jun
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YANG Yuan-xin
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WU Qiong.Geoid Refinement ofS ongyuan Irrigation Area Based on EGM2008[J].Geomatics & Spatial Information Technology,2015(4):213-216. |
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| Authors: | QIU Zhong-jun YANG Yuan-xin WU Qiong |
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| Institution: | QIU Zhong-jun;YANG Yuan-xin;WU Qiong;Jlin Province Water Resource and Hydropower Consultative Company;The Air Force Engineering Institute;College of Geoexploration Science and Technology,Jilin University; |
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| Abstract: | Taking the GPS network of Songyuan irrigation area, this paper refined the local geoid based on the quadratic surface fitting and spatial interpolation of height anomaly, and on the same algorithms of residuals between height anomaly and geoid undulation of EGM2008 with the remove-compute-restore method.EGM2008 has a relatively higher precision and important significance for the refinement of regional and state geoid. |
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| Keywords: | EGM2008 geoid refinement quadratic surface fitting spatial interpolation |
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