Simulation of Modes of Ionosphere Alfven Resonator with High Quality Factors in the Case of Oblique Geomagnetic Field

Volodymyr Grimalsky, Svetlana Koshevaya, Anatoliy Kotsarenko, Marco A. Cruz Chavez

Autonomous University of State Morelos (UAEM), CIICAp, Morelos, Mexico.
Center of Geoscience, UNAM is Autonomous National University of Mexico (UNAM), Queretaro, Mexico.

DOI: 10.4236/jemaa.2012.45026                

Abstract

The properties of the ionosphere Alfvén resonator (IAR) in the general case of an oblique geomagnetic field are investigated. The modes at the frequencies f = 0.2 - 10 Hz well localized within the ionosphere are considered, which are important for the lithosphere—ionosphere coupling. An attention is paid to the modes with quite high quality factors , where . A proper selection of calculated eigenfrequencies has been realized. Two independent simulation algorithms have been proposed. The resonant frequencies and the profiles of magnetic field components of the modes have been calculated. The modulation of electron and ion concentrations at the heights 170 - 230 km leads to essential shifting the resonant frequencies.

Keywords

Alfvén Resonator; Resonant Modes; Quality Factors; Modulation

Conflicts of Interest

The authors declare no conflicts of interest.

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