Abstract
We present a case study of ionospheric wave activity during solar terminator crossing using GPS TEC measurements. As a basic tool, the spatial gradient of total electron content (TEC) has been used. We tested with positive result the hypothesis on anisotropic response to assumed one-dimensional solar terminator forcing. The approximate drift velocity of irregularities has been computed. The wavelet analysis gave an interesting insight into variable frequency content of TEC gradient time series. We also proposed a filtering with respect to spatial scale allowing for resolving the spatio-temporal ambiguity.
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References
Afraimovich, E.L. (2008), First GPS-TEC evidence for the wave structure excited by the solar terminator, Earth Planets Space 60,8, 895–900.
Afraimovich, E.L., I.K. Edemskiy, S.V. Voeykov, Yu.V. Yasyukevich, and I.V. Zhivetiev (2009a), The first GPS-TEC imaging of the space structure of MS wave packets excited by the solar terminator, Ann. Geophys. 27,4, 1521–1525, DOI: 10.5194/angeo-27-1521-2009.
Afraimovich, E.L., I.K. Edemskiy, S.V. Voeykov, Yu.V. Yasyukevich, and I.V. Zhivetiev (2009b), Spatio-temporal structure of the wave packets generated by the solar terminator, Adv. Space Res. 44,7, 824–835, DOI: 10.1016/j.asr.2009.05.017.
Beer, T. (1973), Supersonic generation of atmospheric waves, Nature 242,5392, 34–35, DOI: 10.1038/242034a0.
Briggs, B.H. (1968), On the analysis of moving patterns in geophysics—I. Correlation analysis, J. Atmos. Terr. Phys. 30,10, 1777–1788, DOI: 10.1016/0021-9169(68)90097-4.
Costa, E., and P.F. Fougere (1988), Cross-spectral analysis of spaced-receiver measurements, Radio Sci. 23,2, 129–139, DOI: 10.1029/RS023i002p00129.
Daubechies, I. (1992), Ten Lectures on Wavelets, SIAM, Philadelphia.
Hernández-Pajares, M., J.M. Juan, and J. Sanz (2006), Medium-scale traveling ionospheric disturbances affecting GPS measurements: Spatial and temporal analysis, J. Geophys. Res. 111, A07S11, DOI: 10.1029/2005JA011474.
Herron, T.J., and W.L. Donn (1973), Diurnal variations of F-region waves, J. Atmos. Terr. Phys. 35,12, 2163–2176, DOI: 10.1016/0021-9169(73)90134-7.
Rees, D. (1972), Determination of the structure of the atmosphere between 90 and 250 km by means of contaminant releases at Woomera, May 1968, Phil. Trans. R. Soc. Lond. A 271,1218, 631–663, DOI: 10.1098/rsta.1972.0030.
Somsikov, V.M., and B. Ganguly (1995), On the formation of atmospheric inhomogeneities in the solar terminator region, J. Atmos. Terr. Phys. 57,12, 1513–1523, DOI: 10.1016/0021-9169(95)00014-S.
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Grzesiak, M., Świątek, A. Solar terminator-related ionosphere derived from GPS TEC measurements: A case study. Acta Geophys. 60, 1224–1235 (2012). https://doi.org/10.2478/s11600-011-0048-7
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DOI: https://doi.org/10.2478/s11600-011-0048-7