| 重力地形改正的计算模型研究 |
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| 引用本文： | 李振海,李琼,林旭.重力地形改正的计算模型研究[J].测绘工程,2011,20(2):24-26. |
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| 作者姓名： | 李振海 李琼 林旭 |
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| 作者单位： | 武汉大学测绘学院; |
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| 基金项目： | 国家自然科学基金资助项目(40704003); 地球空间环境与大地测量教育部重点实验室开放基金(08-02-03) |
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| 摘 要： | 为了比较分析地形改正两种模型间的差异及不同地形对地形改正的影响,采用我国4类不同地形的DTM数据,分别使用质量棱柱地形模型和质量线地形模型计算这4个区域的地形改正误差,发现由这2种模型计算得到的地形改正量间的差异很小;研究了平地、丘陵、山地和高山4种地形对地形改正误差的影响,地形改正误差与地形起伏变化强相关;考虑到3阶...
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| 关 键 词： | DTM 地形改正 质量棱柱地形模型 质量线地形模型 |
Research on the terrain correction models in gravity survey |
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| LI Zhen-hai,LI Qiong,LIN Xu.Research on the terrain correction models in gravity survey[J].Engineering of Surveying and Mapping,2011,20(2):24-26. |
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| Authors: | LI Zhen-hai LI Qiong LIN Xu |
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| Institution: | LI Zhen-hai,LI Qiong,LIN Xu(School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China) |
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| Abstract: | For comparing and analyzing the difference between terrain correction models: Mass-Prism model and Mass-Line model,and the correction results by different topography,the paper employed four topography's DTM data;calculated their terrain correction by Mass-Prism model and Mass-Line model;the result verified that the value corrected by Mass-Prism model was close to Mass-Line model.Researched the relation between terrain correction and topography including plain,hilly,mountain and alpine country,the terrain co... |
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| Keywords: | DTM terrain correction Mass-Prism model Mass-Line model |
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