X-Ray Solar Flares Observed and Detected by The New Very-Low-Frequency Receiver in Nasiriyah City, South of Iraq

Authors

  • Habeeb Allawi Ministry of Higher Education and Scientific Research/Directorate of Scholarships and Cultural Relations, Baghdad.
  • Moataz Jasim Ministry of Education, Baghdad.
  • Kareem Abdulameer Difar Ministry of Higher Education and Scientific Research, Baghdad.

DOI:

https://doi.org/10.23851/mjs.v32i2.984

Keywords:

Solar flares, Very low frequency, Sudden Ionospheric Disturbance

Abstract

A receiver station was installed at Nasiriyah (Dhi Qar University - Faculty of Sciences) to receive very low frequency (VLF) radio signals from transmitters around the world. VLF waves are excellent probes of the sudden ionospheric disturbance (SID); they detect varying properties of the D layer presented as a lower region of the ionosphere when these waves propagate through the Earth-Ionosphere Waveguide. This study describes the set-up of our station system and it demonstrates its ability to detect sudden ionospheric disturbances caused by solar flares in May, June, July, August, and September 2017. We found out that the monitoring station is working successfully to receive FLV signals, and to detect sudden ionospheric disturbances. We detected 17 events resulting from solar flare C-class, 8 events from M-class, and 3 events from X-class that caused an increase in the received FLV amplitude.

References

CrossRef

D. O. Gough, "Heliophysics gleaned from seismology," arXiv Prepr. arXiv1210.1114, 2012.

R. D. Hunsucker and J. K. Hargreaves, The high-latitude ionosphere and its effects on radio propagation. Cambridge University Press, 2007.

K. A. Difar, J. H. A. Ali, A. A. Al-Behadili, M. K. Kareem, A. R. Deaim, and M. K. Hamadani, "Investigation of the Different Models Performance for Evaluating the Disturbance in the Ionosphere," in 2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI), 2019, pp. 1-6.

CrossRef

M. J. Jasim and H. H. Allawi, "Studying and Analysis a VLF Radio Waves Reflection from The Ionosphere Layer in Thi-Qar Site," J. Coll. Educ. Pure Sci., vol. 8, no. 2, pp. 164-175, 2018.

N. R. Thomson, C. J. Rodger, and M. A. Clilverd, "Large solar flares and their ionospheric D region enhancements," J. Geophys. Res. Sp. Phys., vol. 110, no. A6, 2005.

CrossRef

Downloads

Published

2021-05-15

How to Cite

[1]
H. Allawi, M. Jasim, and K. A. Difar, “X-Ray Solar Flares Observed and Detected by The New Very-Low-Frequency Receiver in Nasiriyah City, South of Iraq”, Al-Mustansiriyah Journal of Science, vol. 32, no. 2, pp. 58–62, May 2021.