| 利用多种测高数据反演中国南海海域重力异常 |
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| 引用本文： | 胡淑梅,文汉江,李洪超,史小雨.利用多种测高数据反演中国南海海域重力异常[J].大地测量与地球动力学,2011,31(4):56-59. |
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| 作者姓名： | 胡淑梅 文汉江 李洪超 史小雨 |
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| 作者单位： | 1. 辽宁工程技术大学测绘与地理科学学院,阜新123000;中国测绘科学研究院,北京100039
2. 中国测绘科学研究院,北京,100039 |
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| 基金项目： | 国家863重点项目(2009AA121402); 国家自然科学基金(40874012) |
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| 摘 要： | 联合Geosat/GM、ERS-1/168和Envisat 3种测高数据,基于高精度地球重力模型EGM2008,采用垂线偏差方法和逆Vening-Meinesz公式,利用移去-恢复技术确定了中国近海及邻近海域(0°N～42°N,102°E～138°E)分辨率为2′×2′的重力异常.在中国南海海域,测高重力异常与船测重力...
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| 关 键 词： | 卫星测高 垂线偏差 逆Vening-Meinesz公式 重力异常 中国南海 |
INVERSION OF GRAVITY ANOMALIES OVER SOUTH CHINA SEA BY USE OF COMBINATION OF MULTI-SATELLITE ALTIMETER DATA |
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| Hu Shumei,Wen Hanjiang,Li Hongchao,Shi Xiaoyu.INVERSION OF GRAVITY ANOMALIES OVER SOUTH CHINA SEA BY USE OF COMBINATION OF MULTI-SATELLITE ALTIMETER DATA[J].Journal of Geodesy and Geodynamics,2011,31(4):56-59. |
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| Authors: | Hu Shumei Wen Hanjiang Li Hongchao Shi Xiaoyu |
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| Affiliation: | Hu Shumei1,2),Wen Hanjiang2),Li Hongchao1,2) and Shi Xiaoyu1,2)1)School of Geomatics,Liaoning Technical University,Fuxin 1230002)Chinese Academy of Surveying And Mapping,Beijing 100039 |
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| Abstract: | On the basis of the high precision global gravity model(EGM2008),combined with multi altimeter data(Geosat/GM data,ERS 1/168 data and Envisat data),the gravity anomalies grided in 2′×2′ over China sea and its vicinity (0°N～42°N，102°E～138°E) are determined with the method of deflection of the vertical and inverse Vening Meinesz formula.Compared with the shipboard gravimetry over the South China sea,the results show that the standard error of the gravity anomalies computed with the altimeter data is ±9.43× 10 -5 ms -2. To remove gross error of the residual deflection of the vertical by selecting different criterias, the gravity anomalies computed with the altimeter data and shipboard gravity anomalies were compared and analyzed,the accuracy of residual deflection in the vertical range of 3″~ 5″ is better. |
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| Keywords: | satelliate altimetry deflection of the vertical inverse Vening Meinesz formula gravity anomaly South China sea |
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