Ionospheric conductivity effects on electrostatic field penetration into the ionosphere

Тип публикации: статья из журнала

Год издания: 2008

Ключевые слова: electric field, electrical conductivity, equation, ionosphere

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.

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Издание

Журнал: NATURAL HAZARDS AND EARTH SYSTEM SCIENCES

Выпуск журнала: Vol. 8, Is. 5

Номера страниц: 1009-1017

ISSN журнала: 15618633

Место издания: KATHLENBURG-LINDAU

Издатель: COPERNICUS PUBLICATIONS

Авторы

  • Denisenko V.V. (Siberian Federal University)
  • Pomozov E.V. (Institute of Computational Modeling,Russian Academy of Sciences,Siberian Branch)
  • Boudjada M.Y. (Space Research Institute,Austrian Academy of Science)
  • Biernat H.K. (Institute of Physics,Department of Theoretical Physics,Karl-Franzens-University Graz)
  • Schwingenschuh K. (Space Research Institute,Austrian Academy of Science)
  • Lammer H. (Space Research Institute,Austrian Academy of Science)
  • Cristea E. (Space Research Institute,Austrian Academy of Science)
  • Horn M. (Institute of Physics,Department of Geophysics, Astrophysics and Meteorology,Karl-Franzens-University Graz)
  • Prattes G. (Communication Networks and Satellite Communications Institute,Technical University Graz)

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