Proceedings of the KSRS Conference (대한원격탐사학회:학술대회논문집)
- 2008.10a
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- Pages.348-357
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- 2008
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- 1226-9743(pISSN)
Connection between the Amplitude Variations of the GPS Radio Occultation Signals and Solar Activity
- Pavelyev, A.G. (Institute of Radio Engineering and Electronics of the Russian Academy of Sciences, (IRE RAS)) ;
- Liou, Y.A. (Center for Space and Remote Sensing Research, National Central University) ;
- Wickert, J. (GeoForschungsZentrum Potsdam (GFZ-Potsdam)) ;
- Pavelyev, A.A. (Institute of Radio Engineering and Electronics of the Russian Academy of Sciences, (IRE RAS))
- Published : 2008.10.29
Abstract
The classification of the effect of ionospheric disturbances on the radio occultation signal amplitude has been introduced based on an analysis of more than 2000 seances of radio occultation measurements per formed with the help of the CHAMP German satellite. The dependence of the histograms of variations in the radio occultation signal amplitude on the IMF variation index has been revealed. It has been indicated that it is possible to introduce the radio occultation index characterizing the relation between ionospheric disturbances and solar activity. An amplitude radio occultation (RO) method is proposed to study connection between the ionospheric and solar activity on a global scale. Sporadic amplitude scintillation observed in RO experiments contain important information concerning the seasonal, geographical, and temporal distributions of the ionospheric disturbances and depend on solar activity. The probability of strong RO amplitude variations (RO
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