| 高程异常扰动源及均衡异常影响分析 |
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| 引用本文： | 刘缵武,刘世晗.高程异常扰动源及均衡异常影响分析[J].海洋测绘,2013,33(5):7-9. |
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| 作者姓名： | 刘缵武 刘世晗 |
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| 作者单位： | 1. 解放军信息工程大学理学院,河南郑州,450052
2. 河南建筑职业技术学院土木工程系,河南郑州,450007 |
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| 摘 要： | 通过分析高程异常的扰动源,探究地形均衡扰动物质引起的均衡高程异常,说明全球许多高原地区的高程异常为负值的主要原因在于地球深部的密度异常,而非地球表面突起的扰动物质和相应地壳均衡部分的扰动物质。一般地,地形及均衡部分对高程异常的影响不足以完全反映高程异常的符号,在许多高原地区的高程异常为负值,可能在深层地幔有大尺度负的扰动质量进行补偿。
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| 关 键 词： | 高程异常 扰动源 均衡异常 |
Analysis of Disturbing Sources of Height Anomalies an Effects from the Isostatic Disturbing Matter |
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| LIU Zuanwu,LIU Shihan.Analysis of Disturbing Sources of Height Anomalies an Effects from the Isostatic Disturbing Matter[J].Hydrographic Surveying and Charting,2013,33(5):7-9. |
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| Authors: | LIU Zuanwu LIU Shihan |
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| Institution: | PAN Zongpeng, WANG Min, CHAI Hongzhou ( Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052, China) |
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| Abstract: | In this article, different characteristics affected by the factors of elevation, time and latitude among three tropospheric refraction models of Saastamoinen, UNB3 and modified hopfield were compared. Based on the experiment results, the most appropriate model was chosen for atmospheric water vapor determination. The estimated water vapor was compared to the results provided by SuomiNet, and a good agreement was showed, which validated the accuracy of PPP-inferred 1WV. It demonstrated that GPS water vapor detected by using PPP technique can reach the precision of network solution. |
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| Keywords: | height anomalies disturbing sources isostatic anomalies |
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