Бороев Роман Николаевич (Boroyev Roman Nikolaevich)

Место работы автора, адрес/электронная почта: Институт космофизических исследований и аэрономии им. Ю. Г. Шафера СО РАН ; 677980, г. Якутск, пр. Ленина, 31 ; e-mail: boroyev@ikfia.ysn.ru ; https://ikfia.ysn.ru

Ученая степень, ученое звание: канд. физ.-мат. наук

Область научных интересов: Геофизические исследования космическими средствами

ID Автора: SPIN-код: 2648-6813, РИНЦ AuthorID: 65577

Документы 11 - 20 из 32
11.

Количество страниц: 2 с.

Геомагнитные наблюдения на территории Якутии в рамках проекта MAGDAS : [тезисы докладов] / Баишев Д. Г., Моисеев А. В., Бороев Р. Н., Макаров Г. А., Поддельский И. Н., Поддельский А. И., Шевцов Б. М., Юмото К. // Вторая научная конференция "Базы данных, инструменты и информационные основы полярных геофизических исследований" (ПОЛАР 2012), 22-26 мая 2012 года, ИЗМИРАН. – Троицк : ИЗМИРАН, 2012. – С. 44-45.

12.

Количество страниц: 1 с.

Развитие DPY токов и авроральных конвекционных электроструй в периоды фазы роста суббури по данным глобальных геомагнитных наблюдений : [тезисы докладов] / Р. Н. Бороев, А. В. Моисеев, С. И. Соловьев, М. Енгебретсон, К. Юмото // Байкальская международная молодежная научная школа по фундаментальной физике : VI сессия молодых ученых "Волновые процессы в проблеме космической погоды". – Иркутск : ИСЗФ, 2003. – С. 34.

13.

Количество страниц: 1 с.

Вклад различных источников в формирование Dst и низкоширотных геомагнитных возмущений по данным глобальных наблюдений в периоды экстра-бурь в октябре-ноябре 2003 г. : [тезисы докладов] / С. И. Соловьев, Р. Н. Бороев, А. В. Моисеев, А. С. Потапов, А. Ду, М. Енгебретсон, К. Юмото, Л. Р. Ньювит // Международная конференция "Солнечно-земная физика" : программа, тезисы докладов. – Иркутск : [б.и.], 2004. – С. 47.

14.

Количество страниц: 2 с.

The geomagnetic severe storm on November 7-11, 2004 had Dst=-383 nT and had probably caused by the coronal mass ejection (CME) in interplanetary space. The burst of solar X-ray preceded the halo-ejection of solar plasma. The experimental fact testifying the global response of the geomagnetic field ("crochet" type) observed after the solar flare on November 6, 2004 is given. The reaction in the geomagnetic field lasted for several hours as well as X-ray bursts registered aboard GEOS-12.

Solar X-ray Bursts as a Possible Predictor of the Magnetic Storm in November 2004 / V. A. Velichko, D. G. Baishev, I. Ya. Plotnikov, N. G. Skryabin, R. N. Boroev // Solar Extreme Events Fundamental Science and Applied Aspects Nor-Amberd, Armenia 26-30 September 2005 : proceedings of the Second International Symposium / edited by A. Chilingarian and G. Karapetyan. − Erevan : Cosmic Ray Division, Alikhanyan Physics Institute, 2006. − P. 107-108.

15.

Количество страниц: 4 с.

By using satellite magnetic field measurements it is shown that before the substorm expansion phase onset the field-aligned currents of zone 2 type are not always observed on the geosynchronous orbits at the midnight sector. The relationship between the appearance of the field-aligned currents of zone 2 types before the beginning of the substorm expansion phase and the active phase duration and the preceding magnetic disturbance level has been found. It is found that if the expansion phase lasts less than 11 min, the appearance probability of the field-aligned current of zone 2 type before the substorm expansion phase onset T0 decreases. As the geomagnetic activity rises before a substorm, the probability of the beginning of the field-aligned currents before T0 increases. These results indicate that substorms in which the field-aligned currents of zone 2 type the T0 onset are absent, can be probably developed in the distant part of the magnetotail.

Boroyev, R. N. Dynamics of the field-aligned current during substorms with a sharp onset of the expansion phase / R. N. Boroyev // Proceedings of the Fifth International Conference on Substorms : 16-20 May 2000 Congress Centre of the Arctic and Antarctic Research Institute, St. Petersburg, Russia. − Noordwijk, Netherlands : European Space Agency, 2000. − P. 377-380.

16.

Количество страниц: 4 с.

By using data treatment results of mid-latitude geomagnetic variations, the significant increase of the local current system intensity with the eastern direction current system, arising near the meridian of expected substorm center ~10-30 min before the break-up onset, has been found. A comparison of longitudinal sizes of two current system, forming the substorm disturbance before and after the onset of the substorm expansion phase, has been carried out. The longitudinal size of the current loop of the substorm growth phase is nearly twice as small as azimuth scale of the substorm current wedge, and the current strength is as week as 2.7-12 times.

Boroyev, R. N. Local increase of field-aligned current intensity before a substorm onset / R. N. Boroyev, V. A. Velichko, D. G. Baishev // Proceedings of the Fifth International Conference on Substorms : 16-20 May 2000 Congress Centre of the Arctic and Antarctic Research Institute, St. Petersburg, Russia. − Noordwijk, Netherlands : European Space Agency, 2000. − P. 279-282.

17.

Количество страниц: 4 с.

The dependence of the longitudinal substorm center localisation on geosynchronous orbits on the IMF Bγ-component has been studied. It is shown that the local magnetic time of the longitudinal substorm center localisation in the magnetosphere varies from evening hours to morning hours as the Bγ-component increases. At low solar wind speeds the substorm centers localize nearer to the evening sector. The ionospheric projection of the substorm center magnetospheric localisation shifts westward at By0. Maximum longitudinal shifts of substorm centers in the ionosphere relative to their location in the magnetosphere are - 3.5 h at Bγ=-4 nT and 3.5 h at Bγ=4.4 nT. Thus, the change of the substorm center localisation relative to the midnight in the ionosphere is caused by both the change of the substorm center position in the magnetosphere and a turn of the magnetotail relative to X-axis.

Boroyev, R. N. Dependence of longitudinal localization of substorm center on geosynchronous orbits on the IMF Bγ-component / R. N. Boroyev, M. G. Gelberg // Proceedings of the Fifth International Conference on Substorms : 16-20 May 2000 Congress Centre of the Arctic and Antarctic Research Institute, St. Petersburg, Russia. − Noordwijk, Netherlands : European Space Agency, 2000. − P. 41-44.

18.

Количество страниц: 4 с.

Based on the data of longitudinal chain of midlatitude stations in the northern hemisphere, substorm-associated field-alighned currents (FACs) are examined. A comparison of IMF component variations with surface FAC characteristics in substorm sites is performed. It is shown that the ratio between the upward and downward surface FAC intensities depends on By IMF. In this regard, the conditions are discussed that favor currents flowing from the dayside cusp to nightside auroral region. These currents, which position is dependent on By IMF direction, can be responsible for difference between the upward and downward current-wedge-associated FACs.

Effect of Bγ IMF in substorm current wedge formation / V. A. Velichko, R. N. Boroev, I. Ya. Plotnikov, D. G. Baishev // Physics of auroral phenomena : proceedings of the 26th annual seminar, 25 - 28 February 2003. – 2003. – P. 45-48.

19.

Количество страниц: 4 с.

Asymmetry in substorm development in the earth's northern and southern hemispheres / V. A. Velichko, R. N. Boroyev, M. G. Gelberg, D. G. Baishev, J. V. Olson, R. J. Morris, K. Yumoto // Physics of auroral phenomena : proceedings of the 25th annual seminar, Apatity, 26 February – 1 March 2002. – 2002. – P. 33-36.

20.

Количество страниц: 3 с.

Boroyev, R. N. Dynamics of field-aligned currents during substorms / R. N. Boroyev // Physics of auroral phenomena : proceedings of the 25th annual seminar, Apatity, 26 February – 1 March 2002. – 2002. – P. 9-11.