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Transionospheric attenuation of 100 kHz radio waves inferred from satellite and ground based observations


Reference:

Füllekrug, M., Parrot, M., Ash, M., Astin, I., Williams, P. and Talhi, R., 2009. Transionospheric attenuation of 100 kHz radio waves inferred from satellite and ground based observations. Geophysical Research Letters, 36 (6), L06104.

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    Official URL:

    http://dx.doi.org/10.1029/2008gl036988

    Abstract

    Around fifty LORAN (LOng RAnge Navigation) transmitters in the northern hemisphere currently launch continuously pulsed 100 kHz radio waves into the Earth's atmosphere for marine navigation. It is discovered that the 100 kHz radio waves from the LORAN transmissions can be detected by the DEMETER satellite at an altitude of similar to 660 km above the transmitters. These novel electric field measurements in space enable the determination of the nocturnal transionospheric attenuation by comparison with ground based electric field measurements. The electric field measurements on the satellite indicate that the nocturnal transionospheric attenuation of 100 kHz radio waves from LORAN transmissions is equivalent to a nocturnal subionospheric attenuation of the 100 kHz radio waves at a distance of similar to 7-9 Mm. The radio waves exhibit an average subionospheric attenuation of similar to 5 dB/Mm and it is concluded that the nocturnal transionospheric attenuation of 100 kHz radio waves is similar to 35-45 dB. This result enables future space missions to quantify the intensity of lightning discharges associated with transient luminous events and terrestrial g-ray flashes.

    Details

    Item Type Articles
    CreatorsFüllekrug, M., Parrot, M., Ash, M., Astin, I., Williams, P. and Talhi, R.
    DOI10.1029/2008gl036988
    DepartmentsFaculty of Engineering & Design > Electronic & Electrical Engineering
    Publisher Statementfullekrug-grl09.pdf: ©AGU. "AGU allows authors to deposit their journal articles if the version is the final published citable version of record, the AGU copyright statement is clearly visible on the posting, and the posting is made 6 months after official publication by the AGU." Full citation: Füllekrug, M., Parrot, M., Ash, M., Astin, I., Williams, P. and Talhi, R., 2009. Transionospheric attenuation of 100 kHz radio waves inferred from satellite and ground based observations. Geophysical Research Letters, 36, L06104. Available: http://dx.doi.org/10.1029/2008GL036988
    RefereedYes
    StatusPublished
    ID Code13995

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