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Secular variation and fluctuation of GPS Total Electron Content over Antarctica

Published online by Cambridge University Press:  30 January 2013

Rui Jin  and
Shuanggen Jin
Rui Jin
Affiliation:
Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China University of Chinese Academy of Sciences, Beijing 100049, China
Shuanggen Jin
Affiliation:
Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China
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Abstract

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The total electron content (TEC) is an important parameters in the Earth's ionosphere, related to various space weather and solar activities. However, understanding of the complex ionospheric environments is still a challenge due to the lack of direct observations, particularly in the polar areas, e.g., Antarctica. Now the Global Positioning System (GPS) can be used to retrieve total electron content (TEC) from dual-frequency observations. The continuous GPS observations in Antarctica provide a good opportunity to investigate ionospheric climatology. In this paper, the long-term variations and fluctuations of TEC over Antarctica are investigated from CODE global ionospheric maps (GIM) with a resolution of 2.5°×5° every two hours since 1998. The analysis shows significant seasonal and secular variations in the GPS TEC. Furthermore, the effects of TEC fluctuations are discussed.

Keywords

GNSSTECIonosphereAntarctica
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S288: Astrophysics from Antarctica , August 2012 , pp. 322 - 325
Copyright
Copyright © International Astronomical Union 2013

References

Leick, A. 1990 GPS Satellite Surveying (John Wiley and Sons).Google Scholar
Bassiri, S. and Hajj, G. A. 1992 Modeling the Global Positioning system signal Propagation Through the ionosphere, TDA Progress Report 42–110.Google Scholar
Datta-Barua, S., Walter, T.et al., 2008 Bounding higher-order ionosphere errors for the dual-frequency GPS user, Radio Science 43, 5.Google Scholar
Hernandez-Pajares, M., Juan, J. M.et al., 2009 The IGS VTEC maps: a reliable source of ionospheric information since 1998, Journal of Geodesy 83 (3–4): 263–275.Google Scholar
Jiyu, Liu 2008 The theory and algorithm of GPS satellite navigation positioning, Science Press.Google Scholar
Kelly, Michael C. 2009 The earth's Ionosphere: Plasma Physics and Electrodynamics (2nd Edition. Elsevier, Academic Press).Google Scholar
Mannucci, A. J., Wilson, B. D.et al., 1998 A global mapping technique for GPS-derived ionospheric total electron content measurements, Radio Science, 33 (3): 565–582.Google Scholar
Jakowski, Norbert, Mayer, Christoph, Wilken, Volker and Hoque, Mohammed M. 2008 Ionospheric impact on GNSS signals, Fsica de la Tierra, vol 20.Google Scholar
Schaer, S. 1999 Mapping and predicting the earth's ionosphere using the Global Positioning System, Zurich, Institut fur Geodasie und Photogrammetrie, Eidg. Technische Hochschule Zurich.Google Scholar
Smith, D. A., Araujo-Pradere, E. A.et al., A comprehensive evaluation of the errors inherent in the use of a two-dimensional shell for modeling the ionosphere Radio Science, 43 (6): RS6008.Google Scholar