Abstract
In order to study the propagation mechanism of whistlers, a new method of wide-band direction finding for whistlers, based on the simultaneous measurement of two horizontal magnetic field components and one vertical electric field component using the digital recorders and a fast Fourier transform analyser, has been adopted for daytime whistlers at low latitude Yamaoka (geomag. lat. 25°N). It is found that there is a negligibly small frequency dependence of the ionospheric exit point and polarization of daytime whistlers during each occurrence peak with duration of about 2 hours, which lends further support to their propagation in field-aligned duct in the magnetosphere for each occurrence peak.
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© 1991 Springer-Verlag Tokyo
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Ohta, K., Hayakawa, M., Shimakura, S. (1991). Frequency Dependence of Ionospheric Exit Points and Polarization of Daytime Whistlers at Low-Latitude. In: Kikuchi, H. (eds) Environmental and Space Electromagnetics. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68162-5_17
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DOI: https://doi.org/10.1007/978-4-431-68162-5_17
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-68164-9
Online ISBN: 978-4-431-68162-5
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