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Characteristics of flux-time profiles, temporal evolution, and spatial distribution of radiation-belt electron precipitation bursts in the upper ionosphere before great and giant earthquakesстатья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 15 февраля 2024 г.
- Авторы: Anagnostopoulos Georgios C., Vassiliadis Efthymios, Pulinets Sergey
- Журнал: Annals of Geophysics
- Том: 55
- Номер: 1
- Год издания: 2012
- Издательство: Editrice Compositori srl
- Местоположение издательства: Italy
- Первая страница: 21
- Последняя страница: 36
- DOI: 10.4401/ag-5365
- Аннотация: The analysis of energetic electron observations made by the DEMETER satellite reveals that radiation belt electron precipitation (RBEP) bursts are observed in general several ( 1-6 days) before a large (M > 6.5) earthquake (EQ) in the presence of broad band ( 1-20 kHz) VLF waves. The EBs show in general a relative peak-to-background flux increase usually < 100, they have a time duration of 0.5 - 3 min, and their energy spectrum reach up to energies < 500 keV. The RBEP activity is observed as one, two or three EBs throughout a semi-orbit, depended on the magnetic field structure above the EQ epicenter. A statistical analysis has been made for earthquakes in Japan, which reveals a standard temporal variation of the number of EBs, which begins with an incremental rate several days before major earthquakes, and after a maximum, decreases so that the electron precipitation ceases above the epicenter. Some earthquake induced EBs were observed not only in the nightside ionosphere, but also in the dayside ionosphere. © 2012 by the Istituto Nazionale di Geofisica e Vulcanologia. All rights reserved.
- Добавил в систему: Пулинец Сергей Александрович