NDLI: Determination of the ionospheric transmission loss of the low frequency EM waves by simultaneous measurements of satellite and ground-based experiments

Content Provider	IEEE Xplore Digital Library
Author	Hobara, Y. Parrot, M.
Copyright Year	2011
Description	Author affiliation: Larboratoire de Physique et Chimie de l'Environnment et de l'Espace, 3A Avenue de la Recherche Scientifique, Orleans, 45071, France (Parrot, M.) \|\| Department of Communication Engineering and Informatics, Graduate School of Informatics and Engineering, The University of Electro-Communications, 1-5-1, Chofugaoka, Chofu, Tokyo, 182-8585, Japan (Hobara, Y.)
Abstract	Propagation characteristics of the low frequency electromagnetic waves in the ionosphere are experimentally derived using simultaneous measurements of electromagnetic waves from intensive lightning by French DEMETER satellite and ground-based observations. The transient waveforms generated by worldwide intensive lightning in ELF range are continuously monitored by multi-component measurements in Moshiri, Hokkaido, Japan. Corresponding lightning locations and their electric properties are also derived from the ELF measurement whilst the low altitude satellite (DEMETER) successfully detects electromagnetic pulses over the same lightning sources penetrated through the ionosphere. Direct comparison of ELF transient waves observed by the satellite with the ground experiment gives the unique opportunity to derive the experimental ionospheric property such as an ionospheric transmission loss. The ionospheric transmission loss is obtained for different latitudes and local times by calculating Poynting flux at the lightning and above the ionosphere, and these results are compared with the theoretical calculations by using full-wave numerical method. As a result, the ionospheric penetration loss increases with decreasing the magnetic latitude and with increasing wave frequency. The penetration loss is much larger in daytime rather than night time. The experimentally obtained results are in good agreement with those from theoretical calculations.
Starting Page	1
Ending Page	3
File Size	472616
Page Count	3
File Format	PDF
ISBN	9781424451173
e-ISBN	9781424460519
DOI	10.1109/URSIGASS.2011.6050768
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-13
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ground penetrating radar Satellites Lightning Geophysical measurement techniques Propagation losses Frequency measurement Ionosphere
Content Type	Text
Resource Type	Article

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