干旱区生态环境知识资源中心(Arid): The Development of the Joint NASA GSFC and the National Imagery and Mapping Agency (NIMA) Geopotential Model EGM96

Arid

报告编号	NASA/TP-1998-206861, Rept-98B00052, NAS 1.60:206861
来源ID	NTRS_Document_ID: 19980218814
	The Development of the Joint NASA GSFC and the National Imagery and Mapping Agency (NIMA) Geopotential Model EGM96
	Lemoine, F. G.; Kenyon, S.C.; Factor, J. K.; Trimmer, R. G.; Pavlis, N. K.; Chinn, D. S.; Cox, C. M.; Klosko, S. M.; Luthcke, S. B.; Torrence, M. H.; Wang, Y. M.; Williamson, R. G.; Pavlis, E. C.; Rapp, R. H.; Olson, T. R.
英文摘要	The NASA Goddard Space Flight Center (GSFC), the National Imagery and Mapping Agency (NIMA), and The Ohio State University (OSU) have collaborated to develop an improved spherical harmonic model of the Earth's gravitational potential to degree 360. The new model, Earth Gravitational Model 1996 (EGM96), incorporates improved surface gravity data, altimeter-derived gravity anomalies from ERS-1 and from the GEOSAT Geodetic Mission (GM), extensive satellite tracking data-including new data from Satellite Laser Ranging (SLR), the Global Postioning System (GPS), NASA's Tracking and Data Relay Satellite System (TDRSS), the French DORIS system, and the US Navy TRANET Doppler tracking system-as well as direct altimeter ranges from TOPEX/POSEIDON (T/P), ERS-1, and GEOSAT. The final solution blends a low-degree combination model to degree 70, a block-diagonal solution from degree 71 to 359, and a quadrature solution at degree 360. The model was used to compute geoid undulations accurate to better than one meter (with the exception of areas void of dense and accurate surface gravity data) and realize WGS84 as a true three-dimensional reference system. Additional results from the EGM96 solution include models of the dynamic ocean topography to degree 20 from T/P and ERS-1 together, and GEOSAT separately, and improved orbit determination for Earth-orbiting satellites.
英文关键词	GEOPOTENTIAL GRAVITATIONAL FIELDS EARTH GRAVITATION MATHEMATICAL MODELS SATELLITE ALTIMETRY ORBIT CALCULATION GRAVITY ANOMALIES TOPOGRAPHY GEODETIC ACCURACY SATELLITE TRACKING TDR SATELLITES GEOSAT SATELLITES GLOBAL POSITIONING SYSTEM TOPEX POSEIDON SATELLITE GEODETIC COORDINATES
出版年	1998
报告类型	Technical Report
语种	英语
国家	美国
URL	http://hdl.handle.net/2060/19980218814
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/259258
推荐引用方式 GB/T 7714	Lemoine, F. G.,Kenyon, S.C.,Factor, J. K.,et al. The Development of the Joint NASA GSFC and the National Imagery and Mapping Agency (NIMA) Geopotential Model EGM96,1998.