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STUDY OF GENERATION OF ARTIFICIAL MAGNETIC PULSATIONS IN PC1 RANGE AT SPITSBERGENстатья
- Авторы: Mochalov A.A., Pashin A.B., Yeoman T.
- Сборник: PHYSICS OF AURORAL PHENOMENA
- Том: 33
- Год издания: 2011
- Место издания: Федеральное государственное бюджетное научное учреждение "Полярный геофизический институт" г.Мурманск
- Первая страница: 137
- Последняя страница: 139
- Аннотация: Excitation of artificial magnetic pulsations in Pc1 frequency range occurs rather rare. Moreover observation of the ionosphere response to ionosphere heating is not clear in the frame of a conventional model of their generation. Frequently for two events with very similar ionospheric condition artificial emissions may to be observed or not observed. This peculiarity was named as a sporadic nature of the artificial pulsations. Possible explanation of the sporadic nature is disturbances of neutral particle densities in the ionosphere. This parameter included in the numerical model is not controlled during experiments on ionosphere heating. Series of the heating experiments on the pulsation excitation at Spitsbergen give more features to the sporadic nature. Probability of their excitation is independent from local magnetic activity, although the artificial pulsation amplitude depends strictly on ionospheric magnetic field magnitude. The event study of the convection velocity also shows its insignificant correlation with the emission intensity. New ideas are needed to fit the experimental findings with the numerical model.
- Добавил в систему: Мочалов Алексей Анатольевич