The Relationship Between Adiabatic Electron Sound Speed and Electron Flux in the F-region of Ionospheric Plasma

Bu çalışmada, İyonküre'nin F bölgesi için Dünya'nın manyetik alanının gerçek geometrisi kullanılarak kuzey yarımkürede adyabatik elektron ses hızı ile elektron akısı arasındaki ilişki coğrafik enleme bağlı olarak ekinoks (21 Mart ve 23 Eylül) günleri için yerel zamanla değişimleri incelenmiştir. Bu günler için elektron akısı matris olarak elde edilmiştir. Elde edilen bulgulara göre, matris elemanlarından ?yz nin her iki gün dönümünde de ?zy ye eşit olduğu görüldü. Ayrıca sonbahar ekinoksunda elde edilen elektron akısının değeri, ilkbahar ekinoksunda elde edilen elektron akısı değerinden daha büyük olduğu görüldü. Bunun yanı sıra elektron akısı ile adyabatik elektron ses hızı arasında lineer bir ilişki belirlendi

İyonosferik Plazmanın F-Bölgesinde Adyabatik Elektron Ses Hızı ile Elektron Akısı Arasındaki İlişki

In this study, the relationship between the electron flux and adiabatic electron sound speed were investigated with local time variations, using the real geometry of the earth’s magnetic field for both solstices (March 21 and September 23) and geographic latitudes in the ionospheric F-region. For these days, the electron flux was obtained as a tensor. According to the results, yz=zy for both solstices. Furthermore, the magnitude of the electron flux obtained at the autumn equinox is larger than the magnitude of the electron flux obtained at the spring equinox. In addition, a linear relation was found between the electron flux and the adiabatic electron sound speed

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  • [1] Aydogdu, M., Ozcan, O., Effect of magnetic declination on refractive index and wave polarization coefficients of electromagnetic wave in mid-latitude ionosphere, Indian Journal of Radio & Space Science, 25, 263-270, 1996.
  • [2] Aydoǧdu, M., Yeşıl, A., Güzel, E., The group refractive indices of HF waves in the ionosphere and departure from the magnitude without collisions, Journal of Atmospheric and Solar-Terrestrial Physics, 66(5), 343-348, 2004.
  • [3] Aydogdu, M., Ozcan, O., The possible effects of the magnetic declination on the wave polarization coefficients at the cutoff point. Progress in Electromagnetic Research, PIER 30, 179-190. Abstract Journal of Electromagnetic Waves and Applications, 14, 1289-1290, 2001.
  • [4] Bittencourt, J. A., Fundamentals of plasma physics. Springer Science & Business Media, 2013.
  • [5] Kutiev, I., Tsagouri, I., Perrone, L., Pancheva, D., Mukhtarov, P., Mikhailov, A., Andonov, B., Solar activity impact on the Earth’s upper atmosphere, Journal of Space Weather and Space Climate, 3, A06, 2013.
  • [6] Lastovicka, J., Akmaev, R. A., Beig, G., Bremer, J., Emmert, J. T., Global change in the upper atmosphere. Science, 314(5803), 1253-1254, 2006.
  • [7] Rishbeth, H., Garriot, O. K., Introduction to Ionospheric Physics, Academic Press, New York, 175-186, 1969.
  • [8] Rishbeth, H., Physics and Chemistry of the Ionosphere, Contemporary Physics, 14(3), 229-249, 1973.
  • [9] Sagir, S., Atici, R., Ozcan, O., Yüksel, N., The effect of the stratospheric QBO on the neutral density of the D region, Ann. Geophys., 58(3), A0331, 2015.
  • [10] Sagir, S., Karatay, S., Atici, R., Yesil, A., Ozcan, O., The relationship between the Quasi Biennial Oscillation and Sunspot Number, Advances in Space Research, 55(1), 106-112, 2015.
  • [11] Sagir, S., Yesil, A., Sanac, G., Unal, I., The characterization of diffusion tensor for mid-latitude ionospheric plasma, Annals of Geophysics, 57(2), A0216, 2014.
  • [12] Schunk, R., Nagy, A., Ionospheres: physics, plasma physics and chemistry, Cambridge University Press, 2009.
  • [13] Yeşil, A., Sağır, S., Kurt, K., The Behavior of the Classical Diffusion Tensor for Equatorial Ionospheric Plasma, BEU Journal of Science, 5(2), 123-127, 2016.
  • [14] Swanson, D. G., Plasma waves, Academic Press, San Dieogo, 1989.
  • [15] Yesil A., Sagir, S., Ozcan, O., Comparison of maximum electron density predicted by IRI-2001 with that measured over Chilton station, E-Journal of New World Sci. Acad, 4(3), 92-99, 2009.
  • [16] Kurt, K., Yeşil, A., Sağir, S., Atici, R., The Relationship of Stratospheric QBO with the Difference of Measured and Calculated NmF2, Acta Geophysica, 64(27), 81-93, 2016.