Investigations of the lower ionosphere over Antarctica via ELF-VLF radiowaves

• Published in: Antarctic Science
• Main Authors: Reznikov, A. E., Sukhorukov, A. I., Edemskii, D. E., Kopeikin, V. V., Morozov, P. A., Ryabov, B. S., Shchekotov, A. Yu., Solov'Ev, V. V.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 1993
• Subjects: Geology; Ecology, Evolution, Behavior and Systematics; Oceanography; Antarctic; Siple; Schumann; Antarc*; Antarctic Science; Antarctica
• Online Access: http://dx.doi.org/10.1017/s0954102093000148; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102093000148

The paper discusses ELF-VLF investigations of the low Antarctic ionosphere. Two new methods of lower ionospheric diagnostics are based on an investigation of the VLF electromagnetic field structure in the Earth-ionosphere cavity. One method deals with the analysis of local transverse cavity resonances in the near field of an emitter (a horizontal antenna) with a frequency (~1.5-8 kHz) in the range of the first few resonances. The other method, based on tweek investigations, is applicable under night conditions and enables the characteristics of the low ionosphere to be determined over a signal propagation path. The use of the ELF-VLF transmitter at Siple Station provides a unique opportunity to implement these methods, as does the ELF multipoint recording in the Schumann resonance band of atmospherics excited by powerful lightning discharges.