| 试论区域重力测量远区地改的精度 |
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| 引用本文： | 李东汉.试论区域重力测量远区地改的精度[J].物探与化探,1984,8(2):99-104. |
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| 作者姓名： | 李东汉 |
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| 作者单位： | 地质矿产部北京计算中心 |
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| 摘 要： | 在区域重力资料整理中,拟从1:5万地形图上读取1×1公里的高程网,建立全国地形图网结点高程数据库,用于计算区域重力远区地形改正值。但在山区能达到多大精度？这里为大家提供一份典型山区地形改正的试验资料,并据此谈些粗浅的看法,供同志们参考。
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A DISCUSSION ON THE ACCURACY OF FAR-SECTOR TOPOGRAPHIC CORRECTION INREGIONAL GRAVITY SURVEY |
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| Abstract: | The calculation error in far-sector topographic correction of regional gravity data originates mainly from the errors of approximation of digital to natural terrain and the interpolation errors of random grid, and, to a lesser extend, from the errors in position. The reading error and the altitude error, however, can almost be neglected. Adiscussion on ail these errors is given in this paper with special reference to the area of Qinling Mountains. |
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