Improved mapping functions for atmospheric refraction correction in SLR

被引:107
作者
Mendes, VB [1 ]
Prates, G
Pavlis, EC
Pavlis, DE
Langley, RB
机构
[1] Univ Lisbon, Fac Ciencias, Lab Tectonofis & Tecton Expt, P-1749016 Lisbon, Portugal
[2] Univ Lisbon, Fac Ciencias, Dept Matemat, P-1749016 Lisbon, Portugal
[3] Univ Algarve, Escola Super Tecnol, Faro, Portugal
[4] Univ Maryland Baltimore Cty, Joint Ctr Earth Syst Technol, Greenbelt, MD 20771 USA
[5] NASA, Greenbelt, MD 20771 USA
[6] Raytheon Informat Technol & Sci Serv, Greenbelt, MD 20771 USA
[7] Univ New Brunswick, Dept Geodesy & Geomat Engn, Geodet Res Lab, Fredericton, NB E3B 5A3, Canada
关键词
D O I
10.1029/2001GL014394
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
[1] We present two new mapping functions (MFs) to model the elevation angle dependence of the atmospheric delay for satellite laser ranging (SLR) data analysis. The new MFs were derived from ray tracing through a set of data from 180 radiosonde stations globally distributed, for the year 1999, and are valid for elevation angles above 3degrees. When compared against ray tracing of two independent years of radiosonde data (1997-1998) for the same set of stations, our MFs reveal submillimetre accuracy for elevation angles above 10degrees, representing a significant improvement over other MFs, and is confirmed in improved solutions of LAGEOS and LAGEOS 2 data analysis.
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页码:53 / 1
页数:4
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