Articles | Volume 40, issue 5
Ann. Geophys., 40, 585–603, 2022
https://doi.org/10.5194/angeo-40-585-2022
Ann. Geophys., 40, 585–603, 2022
https://doi.org/10.5194/angeo-40-585-2022
Regular paper
06 Oct 2022
Regular paper | 06 Oct 2022

Ionospheric effects of the 5–6 January 2019 eclipse over the People's Republic of China: results from oblique sounding

Leonid F. Chernogor et al.

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Preprint under review for ANGEO
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Dynamic processes in the magnetic field and in the ionosphere during the 30 August–2 September 2019 geospace storm: influence on high frequency radio wave characteristics
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Cited articles

Aa, E., Zhang, S.-R., Shen, H., Liu, S., and Li, J.: Local and conjugate ionospheric total electron content variation during the 21 June 2020 solar eclipse, Adv. Space Res., 68, 3435–3454, https://doi.org/10.1016/j.asr.2021.06.015, 2021. 
Afraimovich, E. L., Voeykov, S. V., Perevalova, N. P., Vodyannikov, V. V., Gordienko, G. I., Litvinov, Y. G., and Yakovets, A. F.: Ionospheric effects of the March 29, 2006, solar eclipse over Kazakhstan, Geomag. Aeron., 47, 461–469, https://doi.org/10.1134/S0016793207040068, 2007. 
Akimov, A. L. and Chernogor, L. F.: Effects of the Solar Eclipse of August 1, 2008 on the Earth's Lower Atmosphere, Kinemat. Phys. Celest. Bodies, 26, 135–145, https://doi.org/10.3103/S0884591310030050, 2010. 
Akimov, L. A., Bogovskii, V. K., Grigorenko, E. I., Taran, V. I., and Chernogor, L. F.: Atmospheric–Ionospheric Effects of the Solar Eclipse of May 31, 2003, in Kharkov, Geomag. Aeron., 45, 494–518, 2005 (in Russian). 
Anastassiades, M. (Ed): Solar Eclipses and the Ionosphere, Plenum Press, New York, ISBN 978-1-4684-1839-2, 1970. 
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Short summary
The solar eclipse of 5–6 January 2019 perturbed the ionospheric electron density, N, observed with the receiver at the Harbin Engineering University and 14 HF broadcasting stations ~1 000 km around. It was accompanied by ±1.5 Hz Doppler-spectrum broadening, ±0.5 Hz Doppler shift, fD, variations, 15 min period variations in fD caused by 1.6–2.4 % perturbations in N, and period changes of 4–5 min in fD caused by 0.2–0.3 % disturbances in N. The decrease in N attained ~15 % (vs. modeled 16 %).