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| 多类资料计算南海重力垂直梯度的方法比较 | |
| 引用本文： | 欧阳明达,张海涛,李正文.多类资料计算南海重力垂直梯度的方法比较[J].海洋测绘,2014,34(6):13-16. |
| 作者姓名： | 欧阳明达 张海涛 李正文 |
| 作者单位： | 1. 解放军信息工程大学地理空间信息学院,河南郑州,450001 2. 61175部队,湖北武汉,430074 3. 61206部队,北京,100042 |
| 摘 要： | 重力垂直梯度在解决和解释地球表层地质和地球物理问题中的作用日益明显,因而获得其模型和分布是非常必要的。利用测高卫星可以得到空间大范围高精度、高分辨率的垂线偏差、重力异常以及大地水准面数据,利用测高重力资料和地球重力场模型,采用不同方法分别计算了南海海域重力垂直梯度,并对它们进行了比较。 |
| 关 键 词： | 重力垂直梯度 重力异常 大地水准面 垂线偏差 EGM2008 |
Comparison of Different Methods to Calculate the Vertical Gradient of Gravity in the South China Sea by Multiple Data |
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| OUYANG Mingd,ZHANG Haitao,LI Zhengwen.Comparison of Different Methods to Calculate the Vertical Gradient of Gravity in the South China Sea by Multiple Data[J].Hydrographic Surveying and Charting,2014,34(6):13-16. | |
| Authors: | OUYANG Mingd ZHANG Haitao LI Zhengwen |
| Institution: | OUYANG Mingda,ZHANG Haitao,LI Zhengwen( 1.Institute of Geospatial Information ,Information Engineering University ,Zhengzhou 450001 ,China; 2.61175 Troops,Wuhan 430074,China; 3.61206 Troops,Beijing 100042,China) |
| Abstract: | In resolving and explaining geological questions about the earth＇s surface and physical geodesy questions,the role of vertical gravity gradients has become increasingly evident,thereby gaining the models and distribution is necessary.Data derived from altimetry satellites can be used for getting a wide range of highprecision,high-resolution vertical deviation,gravity anomalies and geoid models.We use these data,the earth＇s gravity field model and different methods to respectively calculate the vertical gravity gradient in the South China Sea and compare their calculate results. |
| Keywords: | vertical gravity gradient gravity anomalies geoid vertical deviation EGM2008 |
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