| 界面起伏对模拟大地水准面的影响 |
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| 引用本文： | 楼立志,方剑,许厚泽. 界面起伏对模拟大地水准面的影响[J]. 同济大学学报(自然科学版), 2006, 34(6): 848-852 |
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| 作者姓名： | 楼立志 方剑 许厚泽 |
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| 作者单位： | 1. 同济大学,测量与国土信息工程系,上海,200092;中国科学院,测量与地球物理研究所,湖北,武汉,430077
2. 中国科学院,测量与地球物理研究所,湖北,武汉,430077 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 结合中国及邻区的数据，利用界面上下的平均密度差，计算了物质界面起伏对大地水准面的影响，发现莫霍界面的影响占地形质量影响的70％左右，验证了均衡补偿理论．同时也发现，即便加上结晶基底起伏和岩石圈底面起伏的影响，也仅仅是补偿了由地形质量引起的大地水准面起伏的中长波部分，而短波长的地形影响仍然存在．
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| 关 键 词： | 模拟大地水准面 界面起伏 补偿 |
| 文章编号： | 0253-374X（2006）06-0848-05 |
| 收稿时间： | 2005-04-28 |
| 修稿时间： | 2005-04-28 |
Effects of Interface Undulations on Simulated Geoid |
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| LOU Lizhi,FANG Jian,XU Houze. Effects of Interface Undulations on Simulated Geoid[J]. Journal of Tongji University(Natural Science), 2006, 34(6): 848-852 |
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| Authors: | LOU Lizhi FANG Jian XU Houze |
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| Affiliation: | 1. Department of Surveying and Geoinformatics, Torsi University, Shanghai 200092, China; 2. Institute of geodesy and geophysics, Chinese Academy of Sciences, Wuhan 430077, China |
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| Abstract: | The effect of interface undulations on the geoid in China and its adjacent regions is calculated on the basis of the average density differences of the interfaces in this paper. The result shows that the effect of MOHO interface accounts for about 70 % of the topographical effects, which validates the topography-isostatic theory. It is concluded that the topographical effects can not be fully compensated even if sediment undulation and lithosphere bottom undulation are considered. Actually, only the middle- and long-wavelength parts of geoid undulations are compensated, however the short-wavelength parts of topographical effects still exist. |
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| Keywords: | simulated geoid interface undulation compensation |
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