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Found 16 entries in the Bibliography.

Showing entries from 1 through 16

2022

Effect of Weak Magnetic Storms on the Propagation of HF Radio Waves

Vertical and oblique sounding data for northeastern Russia have been used to analyze the conditions for the propagation of radio waves during weak geomagnetic storms observed in fall seasons of 2018–2020 at minimal solar activity. Even during weak storms, the maximum observed frequencies have been found to decrease by 25–35\% in daytime and by 40–50\% at night. Variations in the parameters of the distribution of high frequency radio waves during disturbances depend on the spatio-temporal dynamics of large scale structu ...

Kurkin, V.; Polekh, N.; Zolotukhina, N.;

Published by: Geomagnetism and Aeronomy Published on: feb

YEAR: 2022 DOI: 10.1134/S0016793222020116

2018

The ionosphere response to severe geomagnetic storm in March 2015 on the base of the data from Eurasian high-middle latitudes ionosonde chain

Shpynev, B.G.; Zolotukhina, N.A.; Polekh, N.M.; Ratovsky, K.G.; Chernigovskaya, M.A.; Belinskaya, A.Yu.; Stepanov, A.E.; Bychkov, V.V.; Grigorieva, S.A.; Panchenko, V.A.; Korenkova, N.A.; Mielich, J.;

Published by: Journal of Atmospheric and Solar-Terrestrial Physics Published on: 11/2018

YEAR: 2018 DOI: 10.1016/j.jastp.2017.10.014

The pattern of ionospheric disturbances caused by complex interplanetary structure on 19--22 December 2015

The pattern of the ionospheric storm that was observed during the severe two-step geomagnetic storm on 19\textendash22 December 2015 in ...

Kurkin, V.I.; Polekh, N.M.; Zolotukhina, N.A.;

Published by: Journal of Atmospheric and Solar-Terrestrial Physics Published on: 11/2018

YEAR: 2018 DOI: 10.1016/j.jastp.2018.07.003

2017

Dynamics of ionospheric disturbances during the 17\textendash19 March 2015 geomagnetic storm over East Asia

Polekh, N.; Zolotukhina, N.; Kurkin, V.; Zherebtsov, G.; Shi, J.; Wang, G.; Wang, Z.;

Published by: Advances in Space Research Published on: 12/2017

YEAR: 2017 DOI: 10.1016/j.asr.2017.09.030

Dynamics of ionospheric disturbances during the 17—19 March 2015 geomagnetic storm over East Asia

Based on vertical sounding data from nine ionosondes located at 19–66N, 100–130E we investigated the latitude-temporal dynamics of ionospheric disturbances during the 17–19

Polekh, N; Zolotukhina, N; , Kurkin; Zherebtsov, G; Shi, J; Wang, G; Wang, Z;

Published by: Advances in Space Research Published on:

YEAR: 2017 DOI: 10.1016/j.asr.2017.09.030

Studying the ionosphere response to severe geomagnetic storm in March 2015 according to Eurasian ionosonde chain

Shpynev, BG; Zolotukhina, NA; Polekh, NM; Chernigovskaya, MA; Ratovsky, KG; Belinskaya, Yu; Stepanov, AE; Bychkov, VV; Grigorieva, SA; Panchenko, VA; , others;

Published by: Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa Published on:

YEAR: 2017 DOI:

2016

Ionospheric effects of magnetospheric and thermospheric disturbances on March 17--19, 2015

Using vertical and oblique radio-sounding data, we analyze the ionospheric and thermospheric disturbances during the magnetic storm that occurred in northeastern Russia on March 17\textendash19, 2015. We consider the heliospheric sources that induced the magnetic storm. During the main and early recovery phases, the midlatitude stations are characterized by extremely low values of electron density at the F2 layer maximum. Using oblique sounding data, we recorded signals that propagated outside the great circle ar ...

Polekh, N.; Zolotukhina, N.; Romanova, E.; Ponomarchuk, S.; Kurkin, V.; Podlesnyi, A.;

Published by: Geomagnetism and Aeronomy Published on: 09/2016

YEAR: 2016 DOI: 10.1134/S0016793216040174

Studying Peculiarities of Ionospheric Response to the 2015 March 17-19 Geomagnetic Storm in East Asia: Observations and Simulation

Romanova, Elena; Zherebtsov, Gelii; Polekh, Nelya; Wang, Xiao; Wang, Guojun; Zolotukhina, Nina; Shi, Jiankui;

Published by: 41st COSPAR Scientific Assembly Published on:

YEAR: 2016 DOI:

Ionospheric effects of magnetospheric and thermospheric disturbances on March 17—19, 2015

Using vertical and oblique radio-sounding data, we analyze the ionospheric and thermospheric disturbances during the magnetic storm that occurred in northeastern Russia on March

Polekh, NM; Zolotukhina, NA; Romanova, EB; Ponomarchuk, SN; Kurkin, VI; Podlesnyi, AV;

Published by: Geomagnetism and Aeronomy Published on:

YEAR: 2016 DOI:

Backscattering dynamics during intense geomagnetic storm as deduced from Yekaterinburg radar data: March 17-22, 2015

This paper examines the spatio-temporal dynamics of backscattering signals during St. Patrick’s Day two-step intense geomagnetic storm from the Yekaterinburg Coherent Radar (

Zolotukhina, NA; Kurkin, VI; Polekh, NM; Romanova, EB;

Published by: Solar-Terrestrial Physics Published on:

YEAR: 2016 DOI:

2015

Ionospheric effects of solar flares and their associated particle ejections in March 2012

Flares of March 4\textendash9, 2012 were accompanied by an intensification of solar electromagnetic and corpuscular radiations and five coronal mass ejections. Bursts of X-rays and increased solar cosmic ray fluxes caused an increase in ionospheric absorption manifesting itself in data from vertical sounding stations as enhancements of the lowest frequency of reflections up to 4\textendash6\ MHz at the daytime and as the disappearance of reflections in the ionograms of high latitude stations. Interplanetary coronal m ...

Zolotukhina, N.; Polekh, N.; Kurkin, V.; Romanova, E.;

Published by: Advances in Space Research Published on: 06/2015

YEAR: 2015 DOI: 10.1016/j.asr.2015.03.004

Ionospheric disturbance; Magnetic storm; X-ray flare; Solar cosmic rays; Coronal mass ejection

2014

Ionospheric response to geomagnetic storm on July 14-17, 2012 in East Asia

Romanova, Elena; Zherebtsov, Gelii; Wang, Guojun; Zolotukhina, Nina; Polekh, Nelya; Wang, Xiao; Shi, Jiankui;

Published by: 40th COSPAR Scientific Assembly Published on:

YEAR: 2014 DOI:

2011

Electron concentration variations in the F1-region during magnetic storms in a low solar activity period

Polekh, N.; Kushnarenko, G.; Pirog, O.; Kolpakova, O.; Kuznetsova, G.;