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Study of Geoelectrical Responses to Space Weather Anomalies: Auroral Latitudes, Yenisei-Khatanga Regional Troughстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 17 апреля 2024 г.
- Авторы: Sokolova E.Yu, Marshalko E.E., Kozyreva O.V., Kupriyanov I.S., Epishkin D.V., Pilipenko V.A., Slinchuk G.E., Yakovlev D.V., Yakovlev A.G.
- Журнал: Izvestiya. Physics of the Solid Earth
- Том: 58
- Номер: 5
- Год издания: 2022
- Издательство: Pleiades Publishing, Inc.
- Местоположение издательства: New York, USA
- Первая страница: 670
- Последняя страница: 689
- Оригинальные версии: Изучение геоэлектрических откликов на аномальные события космической погоды: авроральные широты, регион Енисей-Хатангского прогиба
- DOI: 10.1134/S1069351322050135
- Аннотация: The paper presents the results of analysis of the geoelectric (telluric) field variability during theEarth’s magnetic field disturbances, caused by extreme space weather events. The area of the study is the ter-ritory of the Yenisei-Khatanga Regional Trough (YKRT) situated in the auroral zone, where geomagneticdisturbances are characterized by a high level of intensity. The economic development of the YKRT as a large oiland gas-bearing area in the Russian Arctic increases the relevance of the study of possible negative impacts of spaceweather on future infrastructure facilities. The most serious threat to conductive industrial structures in the polarregion will be posed by geomagnetically induced currents (GIC) driven by geoelectrical responses to rapid geomag-netic field changes. The analysis of the variability of telluric fields and calculations of their extreme values in theYKRT area were made using a unique magnetotelluric impedance tensor database collected by Nord West Ltd. as aresult of the regional phase of the geophysical study of the trough and adjacent areas. The geoelectric field spatial-frequency distributions on the Earth’s surface were calculated on the basis of the impedance estimates and harmonicapproximations of the external geomagnetic excitation. The obtained maps were correlated with geological data tofind areas characterized by maximal distortions of the telluric field. Extreme amplitudes of geoelectrical responsesat a series of representative locations in the YKRT were evaluated on the time series of telluric field variations, syn-thesized through the impedance dependences on frequency and magnetic field time series recorded during geomag-netic storms and substorms at the nearest stationary monitoring sites. The resulting estimates of amplitudes anddirections of geoelectric fields during space weather disturbances can be used to account for possible destructiveeffects of GIC in design of pipelines, power transmission lines and railways.
- Добавил в систему: Соколова Елена Юрьевна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | ЭЗ | Sokolova_i_dr_2022.jpg | 1,1 МБ | 14 апреля 2024 [SokolovaElena] | |
| 2. | Полный текст | Sokolovaetal.2022_GICs_Khatanga_PSE_V58_N5.pdf | 7,8 МБ | 14 апреля 2024 [SokolovaElena] |