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The morphological characteristics of energetic proton precipitation equatorward of the isotropy boundary as measured by NOAA POESдоклад на конференции
- Авторы: Semenova N.V., Demekhov A.G., Yahnin A.G., Yahnina T.A.
- Международная Конференция (Семинар (workshop)) : 9th Workshop «Solar Influences on the Magnetosphere, Ionosphere and Atmosphere»
- Даты проведения конференции: 30 мая - 3 июня 2017
- Дата доклада: 30 мая 2017
- Тип доклада: Стендовый
- Докладчик: не указан
- Место проведения: Солнечный берег, Bulgaria
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Аннотация доклада:
On the basis of NOAA POES observations we constructed a map of the global occurrence rate of energetic proton precipitation (EPP) equatorward from the isotropy boundary. It is shown that the occurrence rate of EPP within anisotropy zone is maximal in the afternoon sector at L=69 and decreases to dawn and dusk. There is a tendency to growth of the occurrence rate with the increase of solar wind dynamic pressure and geomagnetic activity. We compared the global distribution of EPP with observational statistics of EMIC waves revealed from magnetospheric spacecraft data, and found the remarkable similarity. This confirms that EPP events are the result of the ioncyclotron instability in the equatorial magnetosphere.
- Добавил в систему: Семенова Надежда Владимировна