Документы 31 - 40 из 2523
31.

Количество страниц: 9 с.

По данным наземных и спутниковых наблюдений рассматриваются квазипериодические изменения геомагнитного поля и параметров плазмы в диапазоне Pc 5 пульсаций, последовавшие сразу после взаимодействия межпланетной ударной волны (МУВ) с земной магнитосферой в событии 24.04.2009 в 00:53 UT. Пульсации были локализованы на широтах 66-74° в полуденном (11 MLT) и вечернем (20 MLT) секторах. Анализ годографов изменений геомагнитного поля как по спутниковым, так и наземным наблюдениям показал наличие вихревых возмущений. В данном событии фронт МУВ в межпланетной среде и фронт волны сжатия в магнитосфере имели наклон в плоскости ZGSM=0, угол наклона составлял 14° в межпланетной среде и 34° в магнитосфере. Положение вихревых возмущений в магнитосфере на разном радиальном расстоянии: X~5.5 Re в полуденном и X~-6.3÷-7.3 Re в вечернем секторе, согласуется с наклоном фронта. По спутниковым наблюдениям максимальная интенсивность волновых возмущений в обоих секторах регистрировалась в тороидальной компоненте, что соответствовало резонансному механизму возбуждения этих возмущений. Анализ распределения скоростей течения плазмы и распространения фронта волны сжатия в магнитосфере показал, что вихревые возмущения наблюдались в областях, где скорости течения плазмы и распространения фронта значительно различались по величине.
Quasi-periodic changes of the geomagnetic field and plasma parameters in the range of Pc 5 pulsations, which occurred immediately after the interaction of interplanetary shock (IPS) with Earth’s magnetosphere in the event of April 24, 2009 at 00:53 UT are examined using ground and satellite observations. The pulsations were localized at latitudes 66-74° in the noon (11 MLT) and evening (20 MLT) sectors. The analysis of hodographs of the geomagnetic field changes both from satellite and ground observations has shown the presence of vortical disturbances. In this event, both the IPS front in the interplanetary medium and the compression wave front in the magnetosphere had a slope in the ZGSM=0 plane; the inclination angle was 14° in the interplanetary medium and 34° in the magnetosphere. The location of the vortical disturbances in the magnetosphere at different radial distances, i.e. X ~5.5 Re in the noon sector and X ~-6.3 ÷-7.3 Re in the evening sector, is in agreement with the front inclination. As inferred from satellite observations, the maximum intensity of wave disturbances in both the sectors was registered in the toroidal component of the magnetic field. This suggests the resonant mechanism of excitation of these disturbances. The analysis of distribution of velocities of plasma flow and compression wave front propagation in the magnetosphere’s equatorial plane has revealed that the vortical disturbances occurred in regions where these velocities were noticeably different in magnitude.

Features of formation of small-scale wave disturbances during a sudden magnetosphereic compression = Особенности формирования мелкомасштабных волновых возмущений во время резкого сжатия магнитосферы / A. Moiseev, D. Baihsev, V. Mishin, T. Uozumi, A. Yoshikawa, A. Du // Солнечно-земная физика = Solar-Terrestrial Physics. – 2017, т. 3, N 2 : 13-я российско-китайская конференция по космической погоде. – С. 36-44.
DOI: 10.12737/22606

32.

Количество страниц: 2 с.

Features of Pc5 generation in the absence of the high-speed streams and significant changes in solar wind dynamic pressure : [тезисы докладов] / A. Moiseyev, D. Baishev, N. Zolotukhina, A. Du, K. Yumoto // Physics of auroral phenomena : 26th annual seminar, 25-28 February 2003 : abstacts. – 2003. – P. 22.

33.

Количество страниц: 4 с.

Moiseyev, A. V. Peculiarities of traveling convection vortices propagation: comparison with sudden geomagnetic impulse / A. V. Moiseyev, S. I. Solovyev, A. Du // Physics of auroral phenomena : proceedings of the 32nd annual seminar, Apatity, 3 – 6 March 2009. – 2010. – P. 75-78.

34.

Количество страниц: 2 с.

Dependence of distribution of the sudden impulse ionospheric currents on IMF orientation during growth periods of the solar wind dynamic pressure : [тезисы докладов] / A. V. Moiseyev, S. I. Solovyev, K. Yumoto, M. Engebretson // Physics of auroral phenomena : 26th annual seminar, 25-28 February 2003 : abstacts. – 2003. – P. 24.

35.

Количество страниц: 4 с.

Moiseyev, A. V. Characteristics of substorms stimulated by variations of the dynamic solar wind pressure and magnetospheric convection electric field / A. V. Moiseyev, S. I. Solovyev, K. Yumoto // Physics of auroral phenomena : proceedings of the 25th annual seminar, Apatity, 26 February – 1 March 2002. – 2002. – P. 29-32.

36.

Количество страниц: 4 с.

Specific features and development of Pi and Pm impulses at latitudes from the equator to the polar cap are studied. It is shown that formation of Pi and Pm impulses at high latitudes (Ф'=70°) is related to simultaneous intensifications of the westward and eastward currents on the dayside of the magnetosphere with a consequent shift of the eastward current to the pole. It leads to an increase of duration of Pi impulse with the growth of latitude. Inversion of Pi and Pm signs relative to the noon meridian takes place only at Ф'≈36-60°. At these latitudes the duration of Pi impulse also increases with growth of latitude, but the increase velocity is one order of magnitude larger than at Ф'=63-83°. The current system of SI impulse and possible reasons of Pi and Pm formation at different latitudes are discussed.

Moiseyev, A. V. Relation between the formation of preliminary and main SI impulses during a sharp compression of the magnetosphere by solar wind / A. V. Moiseyev, S. I. Solovyev, K. Yumoto // Physics of auroral phenomena : proceedings of the 25th annual seminar, Apatity, 26 February – 1 March 2002. – 2002. – P. 51-54.

37.

Количество страниц: 2 с.

Global geomagnetic and auroral response to the variation in the solar wind dynamic pressure : [тезисы докладов] / A. V. Moiseyev, S. I. Solovyev, K. Yumoto, M. Engebretson // Physics of auroral phenomena : 30th annual seminar, 27 February – 2 March 2007 : abstracts. – 2007. – P. 34.

38.

Количество страниц: 2 с.

Characteristics of negative sudden geomagnetic impulses: Comparison with the sudden geomagnetic impulse caused by the growth of the solar wind dynamic pressure : [тезисы докладов] / A. V. Moiseyev, S. I. Solovyev, K. Yumoto, M. Engebretson // Physics of auroral phenomena : 30th annual seminar, 27 February – 2 March 2007 : abstracts. – 2007. – P. 34-35.

39.

Количество страниц: 3 с.

Chronic Triple Infection with Hepatitis B, C, and D Viruses in the Republic of Sakha / Lubov I. Petrova, Snezhana S. Sleptsova, Maksim N. Andreev [и др.] ; M. K. Ammosov North-Eastern Federal University // International journal of biomedicine. - 2018. - Т. 8, N 3. - C. 217-219. - DOI: 10.21103/Article8(1)_ShC2
DOI: 10.21103/Article8(1)_ShC2

40.

Количество страниц: 3 с.

Petrova, L. I. Clinical, Epidemiological and Socio-Personal Characteristics of Patients with Sexually Transmitted Infections in the Republic of Sakha (Yakutia) / Lubov I. Petrova, Snezhana S. Sleptsova, Spiridon S. Sleptsov ; M. K. Ammosov North-Eastern Federal University // International journal of biomedicine. - 2019. - Т. 9, N 3. - C. 266-268. - DOI: 10.21103/Article9(3)_ShC4
DOI: 10.21103/Article9(3)_ShC4