|
|
- 2016
利用GNSS和EGM2008模型进行跨海高程传递
|
Abstract:
跨海高程传递对实现海岛(礁)精确测绘具有重要意义。本文提出利用GNSS和EGM2008模型实现岛礁高程传递。在阐述基本原理的基础上,给出了利用地球引力位模型计算地面点平均重力的公式,并对这种方法获得的高程进行了误差分析,指出引力位模型误差是影响跨海高程传递精度的主要因素。利用我国GNSS水准数据、岛礁联测数据以及美国GNSS水准数据对该方法进行了验证,结果表明该方法得到的高程精度在200 km范围内优于10 cm,在跨海区域10 km范围内可达6 cm
| [1] | Zhai Zhehe, Wei Ziqing, Wu Fumei, et al. Computation of Vertical Deviation of Chinese Height Datum from Geoid by Using EGM2008 Model[J]. <em>Journal of Geodesy and Geodynamics</em>, 2011,31(4):116-118(翟振和, 魏子卿, 吴富梅,等.利用EGM08位模型计算我国高程基准与大地水准面间的垂直偏差[J].大地测量与地球动力学,2011,31(4):116-118) |
| [2] | Ardalan A, Grafarend E. A First Test for <em>W</em><sub>0</sub> the Time Variation of <em>W</em><sub>0</sub> Based on Three GNSS Campaigns of the Baltic Sea Level Project[M]. Berlin:Springer, 2003 |
| [3] | Heiskanen W A, Moritz H. Physical Geodesy[M]. London, UK:Freeman W H and Company, 1967 |
| [4] | Hofmann-Wellenhof B, Moritz H. Physical Geodesy[M]. New York:Springer, 2006 |
| [5] | Li Jiancheng, Jiang Weiping. Height Datum Trans-ference within Long Distance Across Sea[J]. <em>Geomatics and Information Science of Wuhan University</em>, 2001,26(6):514-517(李建成, 姜卫平. 长距离跨海高程基准传递方法的研究[J].武汉大学学报·信息科学版,2001,26(6):514-517) |
| [6] | Wei Ziqing. GPS Gravity-Potential Leveling[J].<em>Journal of Geodesy and Geodynamics</em>, 2007,27(4):1-7(魏子卿.GNSS重力位水准[J]. 大地测量与地球动力学,2007,27(4):1-7) |
| [7] | McCarthy D D, Petit G. IERS Conventions (2003)[R]. IERS Technical Note No.32,Frankfurt, Germany, 2004 |
| [8] | Pavlis N K,Holmes S A,Kenyon S C, et al. An Earth Gravitational Model to Degree 2160:EGM2008[C]. The 2008 General Assembly of the European Geosciences Union, Vienna, Austria, 2008 |
