Morphological analysis of non-great-circle propagation of decameter radio waves over northern paths

V. A. Ivanova; A. V. Podlesnyi; A. A. Naumenko; I. D. Tkachev

doi:10.1117/12.2540748

18 December 2019 Morphological analysis of non-great-circle propagation of decameter radio waves over northern paths

V. A. Ivanova, A. V. Podlesnyi, A. A. Naumenko, I. D. Tkachev

Proceedings Volume 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 112089A (2019) https://doi.org/10.1117/12.2540748
Event: XXV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2019, Novosibirsk, Russian Federation

Abstract

In this study, we analyze a specific type of propagation of decameter radio waves connected with lateral reflections of radio signals from ionospheric irregularities at the F-region altitudes. This feature is appeared in registration at the distance-frequency characteristics (ionograms) flat tracks with group paths exceeding ones for standard reflections from F2-region altitudes and maximum observed frequencies (MOF) exceeding MOF1F2. Non-great-circle HF radio signals propagation is considered for the Dikson – Norilsk, Amderma – Norilsk, and Salekhard – Norilsk paths using ionograms obtained in January and April 2016. 79 events of NGC-reflections during the studied period were registered. Among them, 45 events were observed in evening and night hours. Other NGC-events were registered in the day time.

Citation Download Citation

V. A. Ivanova, A. V. Podlesnyi, A. A. Naumenko, and I. D. Tkachev "Morphological analysis of non-great-circle propagation of decameter radio waves over northern paths", Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 112089A (18 December 2019); https://doi.org/10.1117/12.2540748

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