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Flow instabilities in two-phase or supercritical crust fluids and its possible relevance to seismo-electromagnetic disturbancesстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 26 декабря 2018 г.
- Авторы: Yagova Nadezda V., Yagov Viktor V., Sinha Ashwini K., Hayakawa Masashi, Fedorov Evgeny N., Vichare Geeta
- Журнал: Natural Hazards
- Том: 92
- Номер: 1
- Год издания: 2018
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 369
- Последняя страница: 379
- DOI: 10.1007/s11069-018-3203-5
- Аннотация: Flow pulsations in two-phase and single-phase near-critical fluids are considered as a possible source of ultra-low-frequency seismo-electromagnetic variations. The conditions for generation and suppression of density wave instability in the crust are analyzed and the surface electromagnetic effect due to streaming potential generation is estimated. The upper limit of amplitude of magnetic field variations due to density wave instability is about 0.1 nT for single-phase supercritical and 1 nT for two-phase flow oscillations in the frequency range 10−4−10−2 Hz for the temperature gradients and spatial scales possible during strike slip events. The signal is characterized by a decaying amplitude with typical relaxation time of about several quasi-periods. The possibility of generation of very low-frequency flow pulsations in two-phase fluids via individual bubble evolution and interaction with external acoustic waves is discussed.
- Добавил в систему: Федоров Евгений Николаевич