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The Relationship of Stratospheric QBO with the Difference of Measured and Calculated NmF2

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The relationship between stratospheric QBO and the difference (∆NmF2) between NmF2 calculated with IRI-2012 and measured from ionosondes at the Singapore and Ascension stations in the equatorial region was statistically investigated. As statistical analysis, the regression analysis was used on variables. As a result, the relationship between QBO and ∆NmF2 was higher for 24:00 LT (local time) than 12:00 LT. This relationship is positive in the solar maximum epoch for both stations. In the solar minimum epoch, it is negative at 24:00 LT for Ascension and at 12:00 LT for Singapore. Furthermore, it was seen that the relationship of the ∆NmF2 with both the easterly and westerly QBO was negative for all solar epochs and every LT, at Ascension station. This relationship was only positive for solar maximum epoch and 12:00 LT, at Singapore station.
Czasopismo
Rocznik
Strony
2781--2793
Opis fizyczny
Bibliogr. 23 poz.
Twórcy
autor
  • Department of Physics, Faculty of Sciences, Firat University, Elazig, Turkey
autor
  • Department of Physics, Faculty of Sciences, Firat University, Elazig, Turkey
autor
  • Department of Physics, Faculty of Arts and Sciences, Mus Alparslan University, Mus, Turkey
autor
  • Department of Physics, Faculty of Arts and Sciences, Mus Alparslan University, Mus, Turkey
Bibliografia
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  • Buresova, D., J. Lastovicka, P. Hejda, and J. Bochnicek (2014), Ionospheric disturbance sunder low solar activity conditions, Adv. Space Res. 54, 1, 185-196, DOI: 10.1016/j.asr.2014.04.007.
  • Chen, P.R. (1992), Evidence of the ionospheric response to the QBO, Geophys. Res. Lett. 19, 11, 1089-1092, DOI: 10.1029/91GL01564.
  • Enders, W. (2008), Applied Econometric Time Series, 2nd ed., John Wiley & Sons, 480 pp.
  • Heaps, A., W. Lahoz, and A. O’Neill (2000), The Quasi-Biennial zonal wind Oscillation (QBO), Centre for Global Atmospheric Modelling, Department of Meteorology, University of Reading, UK.
  • Ikubanni, S.O., J.O. Adeniyi, and O.K. Obrou (2014), Monthly mean foF2 model for an African low-latitude station and comparison with IRI, Adv. Space Res. 53, 4, 635-646, DOI: 10.1016/j.asr.2013.12.016.
  • Kazimirovsky, E., H. Herraiz, and B.A. De La Morena (2003), Effects on the ionosphere due to phenomena occurring below it, Surv. Geophys. 24, 2, 139- 184, DOI: 10.1023/A:1023206426746.
  • Kirov, B., S. Asenovski, K. Georgieva, and V.N. Obridko (2014), What causes geomagnetic activity during sunspot minimum? Geomag. Astron. 55, 8, 1033-1038, DOI: 10.1134/S0016793215080149.
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  • Lindzen, R.S. (1987), The development of the theory of the QBO, Bull. Am. Meteorol. Soc. 68, 4, 329-337, DOI: 10.1175/1520-0477(1987)0682.0.CO;2.
  • Lühr, H., and C. Xiong (2010), IRI-2007 model over estimates electron density during the 23/24 solar minimum, Geophys. Res. Lett. 37, 23, L23101, DOI: 10.1029/2010GL045430.
  • MacKinnon, J.G. (1996), Numerical distribution functions for unit root and cointegration tests, J. Appl. Econom. 11, 6, 601-618, DOI: 10.1002/(SICI)1099- 1255(199611)11:63.0.CO;2-T.
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  • Pancheva, D.V., and P.Y. Mukhtarov (1996), A single-station spectral model of the monthly median F-region critical frequency, Ann. Geophys. 39, 4, 807-818.
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  • Sagir, S., S. Karatay, R. Atici, A. Yesil, and O. Ozcan (2015a), The relationship between the Quasi Biennial Oscillation and Sunspot Number, Adv. Space Res. 55, 1, 106-112, DOI: 10.1016/j.asr.09.035.
  • Sagir, S., R. Atici, O. Ozcan, and N. Yuksel (2015b), The effect of the stratospheric QBO on the neutral density of the D region, Ann. Geophys. 58, 3, A0331, DOI: 10.4401/ag-6491.
  • Schunk, R.W., and A.F. Nagy (2009), Ionospheres: Physics, Plasma Physics, and Chemistry, 2nd ed., Cambridge University Press, Cambridge.
  • Yadav, S., R.S. Dabas, R.M. Das, A.K. Upadhayaya, S.K. Sarkar, and A.K. Gwal (2011), Variation of F-region critical frequency (foF2) over equatorial and low-latitude region of the Indian zone during 19th and 20th solar cycle, Adv. Space Res. 47, 1, 124-137, DOI: 10.1016/j.asr..09.003.
  • Yesil, A., S. Sagir, and O. Ozcan (2009), Comparison of maximum electron density predicted by IRI-2001 with that measured over Chilton station, E.-J. New World Sci. Acad. 4, 3, 92-99.
Uwagi
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-c1a92875-c3f9-40fd-9f93-4603e24bb988
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