| WDM94360阶地球重力场模型研究 |
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| 引用本文： | 宁津生, 李建成, 晁定波, 管泽霖. WDM94360阶地球重力场模型研究[J]. 武汉大学学报 ( 信息科学版), 1994, 19(4): 283-291. |
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| 作者姓名： | 宁津生 李建成 晁定波 管泽霖 |
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| 作者单位： | 武汉测绘科技大学, 校长办公室, 武汉市珞喻路39号, 430070 |
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| 基金项目： | 国家测绘局“八五”重点科技攻关资助 |
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| 摘 要： | 利用椭球谐分析和球谐分析理论,结合全球和我国30'×30'平均空间重力异常以及由卫星跟踪资料推求的GEMT2模型,确定了360阶WDM94模型。
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| 关 键 词： | 椭球谐分析 球谐分析 WDM94(360阶)模型 |
| 收稿时间： | 1994-06-20 |
The Research of the Earth's Gravity Field Model WDM94 Complete to Degree 360 |
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| Ning Jinsheng, Li Jiancheng, Chao Dingbo, Guan Zelin. The Research of the Earth's Gravity Field Model WDM94 Complete to Degree 360[J]. Geomatics and Information Science of Wuhan University, 1994, 19(4): 283-291. |
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| Authors: | Ning Jinsheng Li Jiancheng Chao Dingbo Guan Zelin |
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| Affiliation: | The Secretariat of President, WTUSM, Luoyu Road 39, Wuhan, China. 430070 |
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| Abstract: | By using the theories of spheroidal and Spherical harmonic analyses, combining global (including the area of China) 30'×30' mean free-air gravity anomalies as well as GEM T2 model determined by satellite tracking data,the WDM94 model has been determined complete to degree 360. The extern checks show that the accuracy of global 30'×30' gravity anomalies is ±8. 7m Gal,and ±9. 8mGal within China region. For the geoid undulation of China, the accuracy reaches decimetre level. |
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| Keywords: | spheroidal harmonic analysis spherical harmonic analysis WDM94 model to degree 360 |
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