Araştırma Makalesi
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Seasonal Variations of Impedance in the Ionospheric Plasma

Yıl 2020, Cilt: 23 Sayı: 2, 427 - 433, 01.06.2020
https://doi.org/10.2339/politeknik.514327

Öz

The ionosphere is an ionized layer that extends
between 50 km and 1000 km altitudes in the atmosphere. It plays an important
role in atmospheric electricity. The ionosphere has the number of electrically
charged particles and thus, it affects the propagation of the radio waves. In
this study, magnitudes of impedance for different seasons and different
geomagnetic activity periods in the ionospheric plasma are calculated using the
real geometry of Earth. It is observed that the impedance of the ionospheric
plasma in all directions generally has high values for all seasons. The
diagonal components of the tensor of the impedance are greater than the other
components. It is also observed that the ionospheric plasma, generally, has
weak conductivity in all directions and seasons. Impedance varies inversely
with electron density. Hence, geomagnetic activity periods which lead to an
increase in electron density decreases the impedance. It is observed that the
ionospheric plasma has a reactive character in the geographic coordinates where
the study was performed. The ionosphere displays a dielectric structure.

Kaynakça

  • Zhang, D.Y. “New method of calculating the transmission and reflection coefficients and fields in a magnetized plasma layer”, Radio Science, 26(6), 1415-1418, (1991).
  • Lundborg, B., Thide, B. “Standing wave pattern of HF radio waves in the ionospheric reflection regions 2. applications,” Radio Science, 21, 486-500, (1986).
  • Ratcliffe J.A. “The Magneto-ionic Theory and Its Applications to the Ionosphere”, Cambridge University Press, (1959).
  • Rishbeth, H. Garriott, O.K. “Introduction to Ionospheric Physics” Academic Press, (1969).
  • Budden, K.G. “The Propagation of Radio Waves”, Cambridge University Press, (1988).
  • Aydogdu, M. Ozcan, O. “Effects of magnetic declination on refractive index and wave polarization coefficients of electromagnetic waves in mid-latitude ionosphere”, Indian Journal of Radio and Space Physics, 25, 263-270, (1996).
  • Hagfors, T. “Electromagnetic wave propagation in a field-aligned-striated cold magnetoplasma with application to the ionosphere”, Journal of Atmospheric Solar-Terrestrial Physics, 46(3), 211-216, (1984).
  • Al’pert Ya.L. “The direction of the group velocity of electromagnetic waves in a multicomponent magneto-active plasma in the frequency range 0<<”, Journal of Atmospheric Solar-Terrestrial Physics, 42(3), 205-216, (1980).
  • Aydogdu ,M., Yesil, A., Guzel E. “The group refractive indices of HF waves in the ionosphere and departure from the magnitude without collisions”, Journal of Atmospheric Solar-Terrestrial Physics 66(5), 343-348, (2004).
  • Atac, T., Ozguc, A., Pektas, R. “The variability of foF2 in different phases of solar cycle 23”, Journal of Atmospheric Solar-Terrestrial Physics 71(5), 583-588, (2009).
  • Aydogdu, M., Guzel, E., Yesil, A., Ozcan, O. Canyilmaz, M. “Comparison of the calculated absorption and the measured field strength HF waves reflected from the ionosphere”, Il Nuovo Cimento C, 30(3), 243-253, (2007).
  • Inan, U.S., Inan, A.S. “Electromagnetic Waves”, Prentice Hall, (2000).
  • Sturrock, P.A. “Plasma Physics”, Cambridge University Press, (1996).
  • Orfanidis, S.J. “Electromagnetic Waves and Antennas”, Rutgers University Press, (2004).
  • Baker, W.G. Martyn, D.F. “Electric currents in the ionosphere. I. The conductivity”, Philosophical Transactions of the Royal Society A, Mathematical Physical and Engineering Sciences, 246(913), 281-294, (1953).
  • Yesil, A. Unal, I. “Behaviour of Electromagnetic Waves in Different Media and Structures”, InTech, (2011).
  • Aydogdu, M., Ozcan, O. “The possible effects of the magnetic declination on the wave polarization coefficients at the cutoff point”, Progress in Electromagnetics Research-PIER, 30, 179-190, (2001).
  • Blioh, P.V., Nikolaenko A.P., Pilippov Yu.F. “Global'nye Èlektromagnitnye Rezonansy V Polosti Zemlâ-Ionosfera”, Naukova Dumka, (1977).
  • Whitten R.C., Poppoff, I.G. “Fundamentals of Aeronomy”, John Wiley & Sons Inc., (1971).

Seasonal Variations of Impedance in the Ionospheric Plasma

Yıl 2020, Cilt: 23 Sayı: 2, 427 - 433, 01.06.2020
https://doi.org/10.2339/politeknik.514327

Öz

The ionosphere is an ionized layer that extends
between 50 km and 1000 km altitudes in the atmosphere. It plays an important
role in atmospheric electricity. The ionosphere has the number of electrically
charged particles and thus, it affects the propagation of the radio waves. In
this study, magnitudes of impedance for different seasons and different
geomagnetic activity periods in the ionospheric plasma are calculated using the
real geometry of Earth. It is observed that the impedance of the ionospheric
plasma in all directions generally has high values for all seasons. The
diagonal components of the tensor of the impedance are greater than the other
components. It is also observed that the ionospheric plasma, generally, has
weak conductivity in all directions and seasons. Impedance varies inversely
with electron density. Hence, geomagnetic activity periods which lead to an
increase in electron density decreases the impedance. It is observed that the
ionospheric plasma has a reactive character in the geographic coordinates where
the study was performed. The ionosphere displays a dielectric structure.

Kaynakça

  • Zhang, D.Y. “New method of calculating the transmission and reflection coefficients and fields in a magnetized plasma layer”, Radio Science, 26(6), 1415-1418, (1991).
  • Lundborg, B., Thide, B. “Standing wave pattern of HF radio waves in the ionospheric reflection regions 2. applications,” Radio Science, 21, 486-500, (1986).
  • Ratcliffe J.A. “The Magneto-ionic Theory and Its Applications to the Ionosphere”, Cambridge University Press, (1959).
  • Rishbeth, H. Garriott, O.K. “Introduction to Ionospheric Physics” Academic Press, (1969).
  • Budden, K.G. “The Propagation of Radio Waves”, Cambridge University Press, (1988).
  • Aydogdu, M. Ozcan, O. “Effects of magnetic declination on refractive index and wave polarization coefficients of electromagnetic waves in mid-latitude ionosphere”, Indian Journal of Radio and Space Physics, 25, 263-270, (1996).
  • Hagfors, T. “Electromagnetic wave propagation in a field-aligned-striated cold magnetoplasma with application to the ionosphere”, Journal of Atmospheric Solar-Terrestrial Physics, 46(3), 211-216, (1984).
  • Al’pert Ya.L. “The direction of the group velocity of electromagnetic waves in a multicomponent magneto-active plasma in the frequency range 0<<”, Journal of Atmospheric Solar-Terrestrial Physics, 42(3), 205-216, (1980).
  • Aydogdu ,M., Yesil, A., Guzel E. “The group refractive indices of HF waves in the ionosphere and departure from the magnitude without collisions”, Journal of Atmospheric Solar-Terrestrial Physics 66(5), 343-348, (2004).
  • Atac, T., Ozguc, A., Pektas, R. “The variability of foF2 in different phases of solar cycle 23”, Journal of Atmospheric Solar-Terrestrial Physics 71(5), 583-588, (2009).
  • Aydogdu, M., Guzel, E., Yesil, A., Ozcan, O. Canyilmaz, M. “Comparison of the calculated absorption and the measured field strength HF waves reflected from the ionosphere”, Il Nuovo Cimento C, 30(3), 243-253, (2007).
  • Inan, U.S., Inan, A.S. “Electromagnetic Waves”, Prentice Hall, (2000).
  • Sturrock, P.A. “Plasma Physics”, Cambridge University Press, (1996).
  • Orfanidis, S.J. “Electromagnetic Waves and Antennas”, Rutgers University Press, (2004).
  • Baker, W.G. Martyn, D.F. “Electric currents in the ionosphere. I. The conductivity”, Philosophical Transactions of the Royal Society A, Mathematical Physical and Engineering Sciences, 246(913), 281-294, (1953).
  • Yesil, A. Unal, I. “Behaviour of Electromagnetic Waves in Different Media and Structures”, InTech, (2011).
  • Aydogdu, M., Ozcan, O. “The possible effects of the magnetic declination on the wave polarization coefficients at the cutoff point”, Progress in Electromagnetics Research-PIER, 30, 179-190, (2001).
  • Blioh, P.V., Nikolaenko A.P., Pilippov Yu.F. “Global'nye Èlektromagnitnye Rezonansy V Polosti Zemlâ-Ionosfera”, Naukova Dumka, (1977).
  • Whitten R.C., Poppoff, I.G. “Fundamentals of Aeronomy”, John Wiley & Sons Inc., (1971).

Ayrıntılar

Birincil Dil İngilizce
Konular Mühendislik
Bölüm Araştırma Makalesi
Yazarlar

İbrahim ÜNAL 0000-0001-8497-4459

Seçil KARATAY 0000-0002-1942-6728

Ali YEŞİL

Aybaba HANÇERLİOĞULLARI 0000-0001-7008-480X

Yayımlanma Tarihi 1 Haziran 2020
Gönderilme Tarihi 17 Ocak 2019
Yayımlandığı Sayı Yıl 2020 Cilt: 23 Sayı: 2

Kaynak Göster

APA ÜNAL, İ., KARATAY, S., YEŞİL, A., HANÇERLİOĞULLARI, A. (2020). Seasonal Variations of Impedance in the Ionospheric Plasma. Politeknik Dergisi, 23(2), 427-433. https://doi.org/10.2339/politeknik.514327
AMA ÜNAL İ, KARATAY S, YEŞİL A, HANÇERLİOĞULLARI A. Seasonal Variations of Impedance in the Ionospheric Plasma. Politeknik Dergisi. Haziran 2020;23(2):427-433. doi:10.2339/politeknik.514327
Chicago ÜNAL, İbrahim, Seçil KARATAY, Ali YEŞİL, ve Aybaba HANÇERLİOĞULLARI. “Seasonal Variations of Impedance in the Ionospheric Plasma”. Politeknik Dergisi 23, sy. 2 (Haziran 2020): 427-33. https://doi.org/10.2339/politeknik.514327.
EndNote ÜNAL İ, KARATAY S, YEŞİL A, HANÇERLİOĞULLARI A (01 Haziran 2020) Seasonal Variations of Impedance in the Ionospheric Plasma. Politeknik Dergisi 23 2 427–433.
IEEE İ. ÜNAL, S. KARATAY, A. YEŞİL, ve A. HANÇERLİOĞULLARI, “Seasonal Variations of Impedance in the Ionospheric Plasma”, Politeknik Dergisi, c. 23, sy. 2, ss. 427–433, 2020, doi: 10.2339/politeknik.514327.
ISNAD ÜNAL, İbrahim vd. “Seasonal Variations of Impedance in the Ionospheric Plasma”. Politeknik Dergisi 23/2 (Haziran 2020), 427-433. https://doi.org/10.2339/politeknik.514327.
JAMA ÜNAL İ, KARATAY S, YEŞİL A, HANÇERLİOĞULLARI A. Seasonal Variations of Impedance in the Ionospheric Plasma. Politeknik Dergisi. 2020;23:427–433.
MLA ÜNAL, İbrahim vd. “Seasonal Variations of Impedance in the Ionospheric Plasma”. Politeknik Dergisi, c. 23, sy. 2, 2020, ss. 427-33, doi:10.2339/politeknik.514327.
Vancouver ÜNAL İ, KARATAY S, YEŞİL A, HANÇERLİOĞULLARI A. Seasonal Variations of Impedance in the Ionospheric Plasma. Politeknik Dergisi. 2020;23(2):427-33.
 
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