Ionospheric Disturbance Indices for RTK and Network RTK Positioning

Lambert Wanninger

Abstract:	Ionospheric disturbances may cause difficulties in singlebase RTK and even in Network RTK positioning. Hence, index values providing statistical information on expected residual ionospheric biases are of great help to RTK users. One such indicator is the I95 ionospheric disturbance index which has been in continuous use in Central Europe since 1998. This 7 year long time series contains valuable statistical information on the occurrence of medium-scale and small-scale ionospheric disturbances. Whereas the I95 index is mainly suited for RTK positioning, a newly developed I95L-index is aimed at Network RTK users. Numerical values of both indices are compared.
Published in:	Proceedings of the 17th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2004) September 21 - 24, 2004 Long Beach Convention Center Long Beach, CA
Pages:	2849 - 2854
Cite this article:	Wanninger, Lambert, "Ionospheric Disturbance Indices for RTK and Network RTK Positioning," Proceedings of the 17th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2004), Long Beach, CA, September 2004, pp. 2849-2854.
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