Плотников Игорь Яковлевич (Plotnikov Igor Yakovlevich)

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

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

Область научных интересов: Космические исследования, геофизика

ID Автора: РИНЦ AuthorID: 29374

Деятельность: В 1965-2017 гг. - работал в Институте космофизических исследований и аэрономии им. Ю. Г. Шафера СО РАН.

Документы 1 - 8 из 8
1.

Год выпуска: 1998

Работа выполнена в Институте космофизических исследований и аэрономии Сибирского отделения Российской Академии наук (ИКФИА СО РАН)
2.

Количество страниц: 3 с.

Результаты исследования геомагнитных вариаций по данным долготной цепочки среднеширотных станций Северного полушария Земли позволяют рассматривать схемы магнитосферных продольных токов, связанных с развитием суббурь при южном межпланетном магнитном поле. Сопоставляются схемы, различающиеся характеристиками листов продольных токов и локализациями очагов суббурь при противоположно направленных азимутальных компонентах ММП. Обсуждается генерация токов в пограничном слое и полярной ионосфере, при которой токи из области дневного каспа затекают в ночной сектор аврорального овала.

Влияние ММП на локализацию очага суббури / В. А. Величко, Р. Н. Бороев, И. Я. Плотников, Д. Г. Баишев // Труды VI сессии молодых ученых "Волновые процессы в проблеме космической погоды" [15-20 сентября 2003 г.]. - Иркутск : ИСЗФ, 2003. - С. 150-152.

3.

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.

4.

Количество страниц: 4 с.

Геомагнитные вариации, обусловленные действием продольных токов взрывной фазы суббури / Р. Н. Бороев, И. Я. Плотников, В. А. Величко, Д. Г. Баишев // Динамика сплошной среды. – 2004. – Вып. 122 : Доклады Всероссийской школы-семинара "Фундаментальные и прикладные проблемы физики на Севере", Якутск, 24-28 июня 2003. – С. 40-43.

5.

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.

6.

Количество страниц: 4 с.

Galactic cosmic ray (GCR) diffusion in interplanetary space depends in a certain way on the degree of regularity of the interplanetary magnetic field (IMF). The sector IMF structure is manifested in inhomogeneous GCR distribution in the heliosphere. In parallel with the usual sectors associated with solar activity, one should take into account the sectors, which are caused by the Jupiter activity. It is known that the Jupiter is a powerful regular source of high-energy electrons (0.2-40 MeV), the density of which, on the average, is many times higher than that of solar cosmic rays. The high-energy electrons are systematically registed with the 399-day period in the near-Earth space. According to estimations of the particle energy density their flux is sufficient to decrease the magnetic field in the Jovian sector and can due to corresponding large-scale inhomogeneity in the GKL distribution. Hereby, we present the evidences that the GCR diffusion is noticeably stronger in the sector where there are Jovian electrons. By data on periodic passage of those sectors near the Earth, we have treated neutron monitor data using the superposed epoch technique. The day of the Earth and Jupiter opposition is taken as a zero epoch. At large statistical data (9925 days) it is found that the GCR intensity in that period increases with an amplitude near 1%. The groud effect is manifested with the period of 399 days and its maximum time is in a certain way shifted relative to the planet opposite moment.

Skryabin, N. G. Influence of Jupiter on cosmic ray intensity variations / N. G. Skryabin, S. N. Samsonov, I. Ya. Plotnikov // Physics of auroral phenomena : proceedings of the 25th annual seminar, Apatity, 26 February – 1 March 2002. – 2002. – P. 137-139.

7.

Количество страниц: 3 с.

The Jupiter is a powerful regular source of high-energy electrons (0,2-40 MeV). In this connection their density in the near-Earth space systematically increases with a period of 399 days, which is coincident with the synodic period of Jupiter. According to our estimations, their energy is sufficient to produce a significant local reduction of the magnetic field in the IMF sector connected with the Jupiter. In this paper the evidence is presented that the electron fluxes in the Jovian sector are controlled by the general magnetic field of the Sun. A treatment of 399-day intervals of the electron fluxes and IMF, obtained from spacecraft data for the period of 1963 to 2000 has been performed by superposed epoch technique taking into account the periodic change of the solar magnetic field polarity. Having adopted the Jupiter opposition day to be an epoch zero, the changes in particle intensity and IMF components under different signs of the general magnetic field of the Sun are found by using a large dataset (9925 days). The times of 399-day variation maxima in different periods of solar activity are compared and a character of their displacement relative to Jupiter opposition momentsis discussed.

Skryabin, N. G. Influence of a change in solar magnetic field polarity on the Jovian electron flux intensity / N. G. Skryabin, S. N. Samsonov, I. Ya. Plotnikov // Physics of auroral phenomena : proceedings of the 26th annual seminar, 25 - 28 February 2003. – 2003. – P. 159-161.

8.

Количество страниц: 2 с.

Geomagnetic "croshet" as a predictor of an intense storm in November 2004 : [тезисы докладов] / V. A. Velichko, I. Ya. Plotnikov, D. G. Baishev, N. G. Skryabin, R. N. Boroyev, A. V. Moiseyev // Physics of auroral phenomena : 29th annual seminar, 27 February – 3 March 2006 : abstracts. – 2006. – P. 28.