Труды сотрудников ИВМ СО РАН

[Текст] : статья / В.В. Денисенко, Е.В. Помозов // Вычислительные технологии. - 2010. - Т. 15, № 5. - С. 34-50 . - ISSN 1560-7534

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Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44

Доп.точки доступа:
Помозов, Егор Владимирович; Pomozov E.V.; Denisenko V.V.

[Текст] : статья / В.В. Денисенко и др. // Солнечно-земная физика. - 2008. - Т.2, Вып.12. - С. 281-283


Доп.точки доступа:
Бычков, В.В.; Помозов, Егор Владимирович; Pomozov E.V.; Denisenko V.V.

[Текст] : статья / В.В. Денисенко и др. // Солнечно-земная физика. - 2010. - Вып.16. - С. 70-75 . - ISSN 0135-3748


Доп.точки доступа:
Помозов, Егор Владимирович; Pomozov E.V.; Denisenko V.V.

[Текст] : тезисы доклада / В.В. Денисенко и др. ; Семинар - совещания "Межгеосферные взаимодействия" // . - Москва. - С. 14


Доп.точки доступа:
Бычков, В.В.; Помозов, Егор Владимирович; Pomozov E.V.; Denisenko V.V.

[Text] : статья / V.V. Denisenko [et al.] // J. Atmos. Sol.-Terr. Phys. - 2013. - Vol. 102. - P341-353, DOI 10.1016/j.jastp.2013.05.019. - Cited References: 29. - This work is supported by Grants 09-06-91000, 12-05-00152 from the Russian Foundation for Basic Research. Additional support is due to the Austrian "Fonds zur Forderung der wissenschaftlichen Forschung" under Project I193-N16 and the "Verwaltungsstelle fur Auslandsbeziehungen" of the Austrian Academy of Sciences. The authors are grateful to the unknown reviewers for the fruitful detailed discussion. . - 13. - ISSN 1364-6826РУБ Geochemistry & Geophysics + Meteorology & Atmospheric Sciences

Аннотация: A quasi stationary three dimensional model of electric fields and currents in the conductor that includes the Earth's atmosphere and ionosphere is created. The results of the three dimensional model are simpler regarding interpretation and explanation than two dimensional ones. Known approaches regarding the ionosphere as a boundary condition at the upper boundary of the atmospheric conductor are analyzed. For the investigation of the electric field penetration from ground into the ionosphere it is sufficient to take into account only integral conductivity of the ionosphere. A mathematical simulation has shown that the resulting electric field in the ionosphere is negligible in contrast to the general point of view that such a penetration is a physical process which potentially creates ionospheric precursors of earthquakes. (C) 2013 Elsevier Ltd. All rights reserved.

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Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44

Доп.точки доступа:
Denisenko, V.V.; Денисенко, Валерий Васильевич; Ampferer, M.; Pomozov, E.V.; Помозов, Егор Владимирович; Kitaev, A.V.; Китаев, Анатолий Валерьевич; Hausleitner, W.; Stangl, G.; Biernat, H.K.; Russian Foundation for Basic Research [09-06-91000, 12-05-00152]; Austrian "Fonds zur Forderung der wissenschaftlichen Forschung" [I193-N16]; "Verwaltungsstelle fur Auslandsbeziehungen" of the Austrian Academy of Sciences

[Рукопись] : автореф. дис. на соиск. учен. степ. канд. техн. наук: 05.13.11 / Е. В. Помозов ; Институт вычислительного моделирования СО РАН. - Красноярск, 2013. - 16 с. : ил. - Библиогр.: с.15-16. -

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Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44

Доп.точки доступа:
Д003.061.02, Институт вычислительной математики и математической геофизики СО РАН (Новосибирск). Диссертационный совет
Экземпляры всего: 1
СИФ (1)
Свободны: СИФ (1)

[Text] / V. V. Denisenko, E. V. Pomozov // Geomagn. Aeron. - 2011. - Vol. 51, Is. 7. - P866-872, DOI 10.1134/S0016793211070048. - Cited References: 13. - The work was supported by the Russian Foundation for Basic Research, project no. 09-06-91000. The authors are grateful to A.A. Namgaladze for a substantive, although not consensus-inducing, discussion of the work, as well as to colleagues from the Institute of Cosmic Research of the Austrian Academy of Sciences, with whom jointly this cycle of studies was carried out. . - ISSN 0016-7932РУБ Geochemistry & Geophysics

Аннотация: A mathematical model has been proposed for describing quasi-stationary atmospheric electric fields with approximate, but fairly accurate allowance for ionospheric conductivity. It is shown that some well-known models of electric field penetration from the Earth into the ionosphere have been deemed inadequate, though they work well in the atmosphere below 50 km. In these models, the arbitrarily specified boundary condition in the upper boundary of the atmosphere omits the existing good conductor or adds not existent conductor. The maximum possible field in our model is far less than in models where ionospheric conductivity is not taken into account, but vastly larger than in models based on the approximation with infinite Pedersen conductivity in the upper ionosphere.


Доп.точки доступа:
Pomozov, E.V.; Помозов, Егор Владимирович; Денисенко, Валерий Васильевич

[Text] / V. V. Denisenko [et al.] // Nat. Hazards Earth Syst. Sci. - 2008. - Vol. 8, Is. 5. - P1009-1017. - Cited References: 60. - This work is supported by grant 07-05-00135 from the Russian Foundation for Basic Research and by the Programs 16.3 and 2.16 of the Russian Academy of Sciences. Further support is due to the Austrian "Fonds zur Forderung der wissenschaftlichen Forschung" under project P20145-N16. We acknowledge support by the Austrian Academy of Sciences, "Verwaltungstelle fur Auslandsbeziehungen", and the Russian Academy of Sciences. Part of this research was done during academic visits of V. V. 'Denisenko to the Space Research Institute of the Austrian Academy of Sciences in Graz as well as during an academic visit of H. K. Biernat to the Institute of Computational Modelling of the Russian Academy of Sciences in Krasnoyarsk. . - ISSN 1561-8633РУБ Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences + Water Resources

Аннотация: The classic approach to calculate the electrostatic field penetration, from the Earth's surface into the ionosphere, is to consider the following equation del. ((sigma) over cap del Phi) =0 where (sigma) over cap and Phi are the electric conductivity and the potential of the electric field, respectively. The penetration characteristics strongly depend on the conductivities of atmosphere and ionosphere. To estimate the electrostatic field penetration up to the orbital height of DEMETER satellite (about 700 km) the role of the ionosphere must be analyzed. It is done with help of a special upper boundary condition for the atmospheric electric field. In this paper, we investigate the influence of the ionospheric conductivity on the electrostatic field penetration from the Earth's surface into the ionosphere. We show that the magnitude of the ionospheric electric field penetrated from the ground is inverse proportional to the value of the ionospheric Pedersen conductance. So its typical value in day-time is about hundred times less than in night-time.


Доп.точки доступа:
Denisenko, V.V.; Денисенко, Валерий Васильевич; Boudjada, M.Y.; Horn, M.; Pomozov, E.V.; Помозов, Егор Владимирович; Biernat, H.K.; Schwingenschuh, K.; Lammer, H.; Prattes, G.; Cristea, E.

[Text] / V. V. Denisenko, V. V. Bychkov, E. V. Pomozov // Geomagn. Aeron. - 2009. - Vol. 49, Is. 8. - P1275-1277, DOI 10.1134/S0016793209080489. - Cited References: 4. - This work was supported by the Russian Foundation for Basic Research (project no. 07-05-00135) and the Russian Academy of Sciences (program nos. 2.16 and 16.3). . - ISSN 0016-7932РУБ Geochemistry & Geophysics

Аннотация: The spatial distributions of electric fields and currents in the Earth's atmosphere are calculated. Electric potential distributions typical of substorms and quiet geomagnetic conditions are specified in the ionosphere. The Earth is treated as a perfect conductor. The atmosphere is considered as a spherical layer with a given height dependence of electrical conductivity. With the chosen conductivity model and an ionospheric potential of 300 kV with respect to the Earth, the electric field near the ground is vertical and reaches 110 Vm(-1). With the 60-kV potential difference in the polar cap of the ionosphere, the electric field disturbances with a vertical component of up to 13 V m(-1) can occur in the atmosphere. These disturbances are maximal near the ground. If the horizontal scales of field nonuniformity are over 100 km, the vertical component of the electric field near the ground can be calculated with the one-dimensional model. The field and current distributions in the upper atmosphere can be obtained only from the three-dimensional model. The numerical method for solving electrical conductivity problems makes it possible to take into account conductivity inhomogeneities and the ground relief.


Доп.точки доступа:
Denisenko, V.V.; Денисенко, Валерий Васильевич; Bychkov, V.V.; Pomozov, E.V.; Помозов, Егор Владимирович; Russian Foundation for Basic Research [07-05-00135]; Russian Academy of Sciences

[Text] / E. V. Pomozov // Geomagn. Aeron. - 2014. - Vol. 54, Is. 1. - P127-134, DOI 10.1134/S0016793213060121. - Cited References: 26. - This work was supported by the Russian Foundation for Basic Research, projects nos. 07-05-00135 and 12-05-00152. . - ISSN 0016-7932. - ISSN 1555-645XРУБ Geochemistry & Geophysics

Аннотация: In the used model, the quasistationary electric field in the atmosphere of the Earth is obtained by solving the conductivity equation. The penetration characteristics of the electric field from the Earth's surface into the ionosphere depend on both atmospheric and ionosphere conductivity. The ionosphere is taken into account by setting a special condition on the upper boundary of the atmosphere. The influence of the atmospheric surface layer with a reduced conductivity on the penetration of the electric field from the surface of the Earth into the ionosphere is analyzed.

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Держатели документа:
Russian Acad Sci, Inst Computat Modeling, Siberian Branch, Krasnoyarsk 660033, Russia
ИВМ СО РАН

Доп.точки доступа:
Pomozov, E.V.; Помозов, Егор Владимирович; Russian Foundation for Basic Research [07-05-00135, 12-05-00152]

[Текст] : статья / Е. В. Помозов // Геомагнетизм и аэрономия. - 2014. - Т. 54, № 1. - С. 134DOI 10.7868/S0016794013060126 . -

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Доп.точки доступа:
Pomozov E.V.