Ionospheric scintillations computation using real-time GPS observations

• Autorzy: Nykiel G. , Rachoń L. , Figurski M.

Identyfikatory

DOI

10.2478/arsa-2014-0004

• Języki publikacji: EN

Abstrakty

EN

The following paper presents the results of quasi-real-time determination of the values of phase scintillations indices at the period of ionospheric disturbances that occurred as a consequence of the Sun flares observed on March 7 and 9, 2012. Double-frequency observations with 1-second measurement interval from the EPN (EUREF Permanent Network) network sites located at high latitudes were used for the analysis. To determine the phase scintillations it is necessary to apply data filtering in order to separate the trend of low frequencies (e.g. satellite motion) from high frequency oscillations (e.g. scintillations). Elimination of low frequency components of the signal using moving average was proposed in the research. This approach was conditioned by the necessity to apply an optimum method of filtering for quasi-real-time calculations. The scintillation parameters were calculated by means of three different algorithms and the results were compared. Additionally, relations between changes of the parameters and the ROTI index, describing the temporal changes of TEC, and the decrease of positioning accuracy at the analyzed sites were searched.

Słowa kluczowe

EN

GPS scintillations; quasi-real-time computations; phase scintillation index; magnetic storm

• Wydawca: Centrum Badań Kosmicznych PAN ; De Gruyter
• Czasopismo: Artificial Satellites : Journal of Planetary Geodesy
• Rocznik: 2014
• Tom: Vol. 49, No. 1
• Strony: 43--53
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Nykiel G.

• Centre of Applied Geomatics Military University of Technology Kaliskiego 2, 00-908 Warsaw, Poland

autor

Rachoń L.

• Centre of Applied Geomatics Military University of Technology Kaliskiego 2, 00-908 Warsaw, Poland

autor

Figurski M.

• Centre of Applied Geomatics Military University of Technology Kaliskiego 2, 00-908 Warsaw, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).