Continuous Monitoring of the Atmosphere Using GPS

F. Darin, J. Johansson, R. Carlsson, G. Elgered, P. Jarlemark, B. Rönnäng

Abstract:	The Swedish GPS network has been in continuous operation since August 1993. Today the network is used in application with high demands in accuracy such as crustal deformation studies and estimates of the atmospheric propagation delay. To assess the quality of the products from the daily analysis of GPS different methods are used. One is using the microwave radiometer at Onsala which has been operated more or less continuously side-by-side with the GPS receiver. Comparisons between the GPS estimates and the results inferred from the radiometer show agreements of the order of 1 mm in Integrated Water Vapor. This paper will present a short theoretical background to atmospheric effects on radio waves propagating in dispersive and neutral media and some applications of permanent GPS arrays. We have used the Bernese GPS Software Version 4.0 and the GIPSY software package to produce maps of the tropospheric propagation delay and the Total Electron Content.
Published in:	Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997) September 16 - 19, 1997 Kansas City, MO
Pages:	199 - 205
Cite this article:	Darin, F., Johansson, J., Carlsson, R., Elgered, G., Jarlemark, P., Rönnäng, B., "Continuous Monitoring of the Atmosphere Using GPS," Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997), Kansas City, MO, September 1997, pp. 199-205.
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