| 利用空中平均重力异常确定区域大地水准面 |
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| 引用本文： | 孙中苗. 利用空中平均重力异常确定区域大地水准面[J]. 测绘学院学报, 1999, 0(4) |
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| 作者姓名： | 孙中苗 |
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| 作者单位： | 总参测绘研究所!西安710054 |
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| 摘 要： | 提出了直接利用空中平均重力异常计算区域大地水准面的方法。模拟计算的结果表明， 该方法与传统的利用地面平均空间重力异常确定的大地水准面精度相当， 但其显著优点是勿需空中重力异常的向下解析延拓， 从而可以避免延拓误差对大地水准面精化的影响。
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| 关 键 词： | 空中平均重力异常 区域大地水准面 航空重力测量 |
The Determination of Regional Geoid with Aerial Mean Gravity Anomalies |
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| Sun Zhongmiao. The Determination of Regional Geoid with Aerial Mean Gravity Anomalies[J]. Journal of Institute of Surveying and Mapping, 1999, 0(4) |
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| Authors: | Sun Zhongmiao |
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| Affiliation: | Sun Zhongmiao |
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| Abstract: | The aerial mean gravity anomalies in a certain attitude can be given by airborne gravimetry. A method of directly determining the regional geoid with the mentioned data is advanced in this paper. The simulative results indicated that the geoid heights computed from the airborne gravity data matched in precision those computed using ground mean gravity data. But it has distinct advantage that downward continuation of airborne gravity data is not necessary, and thus the effects on geiod due to the errors aroused by downward continuation is avoided. |
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| Keywords: | Aerial mean gravity anomalies Regional geoid Airborne gravimetry |
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