Variations in parameters of low-frequency signals on a mid-latitude radio path during geomagnetic storms caused by high-speed solar wind streams from coronal holes

Соловьева Мария Сергеевна; Коркина Галия Мугтасимовна; Булатова Надежда Руслановна

doi:10.12737/stp-123202605

УДК 550.385 УДК 537.877

Ещё 2 Свернуть

VARIATIONS IN PARAMETERS OF LOW-FREQUENCY SIGNALS ON A MID-LATITUDE RADIO PATH DURING GEOMAGNETIC STORMS CAUSED BY HIGH-SPEED SOLAR WIND STREAMS FROM CORONAL HOLES Variations in parameters of low-frequency signals on a mid-latitude radio path during geomagnetic storms caused by high-speed solar wind streams from coronal holes

АА Аа

Опубликовано в Solar-Terrestrial Physics · Том 12, Номер 3 · Страницы 45–53 · Рубрика: Results of current research

DOI: https://doi.org/10.12737/stp-123202605 · EDN: RGGISI

Получено: 07.10.2025 Одобрено: 16.02.2026 Опубликовано: 19.09.2026 Язык публикаций: ENG

Авторы

СО

Соловьева Мария Сергеевна

КО

Коркина Галия Мугтасимовна

БУ

Булатова Надежда Руслановна

СО

Соловьева Мария Сергеевна

Институт физики Земли им. О.Ю. Шмидта РАН Россия · Москва

КО

Коркина Галия Мугтасимовна

Камчатский филиал ФИЦ «Единая геофизическая служба РАН» Россия · Петропавловск-Камчатский

БУ

Булатова Надежда Руслановна

Камчатский филиал ФИЦ «Единая геофизическая служба РАН» Россия · Петропавловск-Камчатский

АННОТАЦИЯ

Variations in the amplitude and phase of a mid-latitude low-frequency signal from the JJY (40 kHz) transmitter were analyzed during four geomagnetic storms in 2021 and 2025, which were caused by high-speed solar wind streams from coronal holes creating corotating interaction regions. The analysis has shown that nighttime anomalous disturbances in the amplitude and phase were observed for three days during a magnetic storm. The negative amplitude anomalies of the signal ranged from 4.5 to 21 dB; phase anomalies were from 41° to 124°. The sign of the phase anomalies was different on different days. We recorded both positive and negative phase anomalies, as well as wave-like disturbances with a transition from negative to positive anomalies. A statistical relationship was found between the value of the phase anomaly and the intensity of geomagnetic disturbances. The correlation coefficient with the Dst index was –0.39. The relationship between phase anomalies and the AE index is higher; the correlation coefficient in this case was 0.53. No statistical relationship was observed between geomagnetic activity and the anomaly for the sub-ionospheric signal amplitude.

КЛЮЧЕВЫЕ СЛОВА

sub-ionospheric radio signals, lower ionosphere, geomagnetic storms, midlatitudes

Финансирование

The work was performed under Government Assignment at IPE RAS

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Текст (EN) (PDF)

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ГОСТ

Соловьева М. С., Коркина Г. М., Булатова Н. Р. Variations in parameters of low-frequency signals on a mid-latitude radio path during geomagnetic storms caused by high-speed solar wind streams from coronal holes // Solar-Terrestrial Physics. 2026. №. 3. С. 45-53. DOI: https://doi.org/10.12737/stp-123202605. EDN: RGGISI. (дата обращения: 24.09.2026).

MLA

Соловьева Мария Сергеевна, Коркина Г. М., Булатова Н. Р.. "Variations in parameters of low-frequency signals on a mid-latitude radio path during geomagnetic storms caused by high-speed solar wind streams from coronal holes." Solar-Terrestrial Physics 12.3 (2026): 45-53. DOI: https://doi.org/10.12737/stp-123202605. EDN: RGGISI.

APA

Соловьева М. С., Коркина Г. М., Булатова Н. Р. (2026). Variations in parameters of low-frequency signals on a mid-latitude radio path during geomagnetic storms caused by high-speed solar wind streams from coronal holes. Solar-Terrestrial Physics, 12(3), 45-53. https://doi.org/10.12737/stp-123202605 EDN: RGGISI.

Chicago

Соловьева Мария Сергеевна, Коркина Г. М., Булатова Н. Р.. "Variations in parameters of low-frequency signals on a mid-latitude radio path during geomagnetic storms caused by high-speed solar wind streams from coronal holes." Solar-Terrestrial Physics 12, no. 3 (2026): 45-53. https://doi.org/10.12737/stp-123202605. EDN: RGGISI.

WIKI

{{cite journal | author = Соловьева М. С., Коркина Г. М., Булатова Н. Р. | title = Variations in parameters of low-frequency signals on a mid-latitude radio path during geomagnetic storms caused by high-speed solar wind streams from coronal holes | journal = Solar-Terrestrial Physics | year = 2026 | volume = 12 | issue = 3 | pages = 45-53 | doi = 10.12737/stp-123202605 }} EDN: RGGISI

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