Skip to main content
SpringerLink
Log in

LHR whistlers

  • Published:
Studia Geophysica et Geodaetica Aims and scope Submit manuscript

Резюме

В ря¶rt;е ОНЧ эксnерuменmов, выnолненых нa нuзколеmящuх сnуmнuкaх серuu „Инmеркосмос“, был нaŭ¶rt;ен mun свuсmов с необычноŭ ¶rt;uсnерсuеŭ вблuзu чaсmоmы нuжне¶rt;о ¶rt;uбрu¶rt;но¶rt;о резонaнсa (НГР). Эmu „НГР свuсmы“ рaссмamрuвaюmся кaк резульmam mрaнсформaцuu обычных свuсmовых волн в квaзuэлекmросmamuческuе волны в nроцессе рaсnросmрaненuя вблuзu чaсmоmы НГР. Обсуж¶rt;aеmся мехaнuзм вознuкновенuя НГР свuсmов ¶rt;ля свuсmовых волн, рaсnросmрaняющuхся оm большuх высоm к Земле. Покaзaно, кaкuм обрaзом хaрaкmерные особенносmu НГР свuсmов оmрaжaюm ¶rt;uнaмuческuе uзмененuя во внещнеŭ uоносфере сре¶rt;нuх шuроm.

Summary

A type of whistler with unusual dispersion near the LHR frequency has been found, in a number of VLF experiments aboard low-orbiting Intercosmos satellites. These “LHR whistlers” are thought to be the result of transformation of the common whistler mode waves into quasi-electrostatic waves, as they propagate near the LHR frequency. The mechanism generating the LHR whistlers for downgoing whistler waves is discussed. It is shown how the characteristic features of the LHR whistlers reflect the dynamic changes in the outer ionosphere at midlatitudes.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

References

  1. R. E. Barrington, J. S. Belrose, D. A. Kelley: Very-low-frequency Noise Bands Observed by the Alouette 1 Satellite. J. Geoph. Res., 68 (1963), 6539.

    Article  Google Scholar 

  2. N. M. Brice, R. L. Smith: Lower Hybrid Resonance Emissions. J. Geoph. Res., 70 (1965), 71.

    Article  Google Scholar 

  3. T. Laaspere, W. C. Johnson, L. C. Semprebon: Observations of Auroral Hiss, LHR Noise, and Other Phenomena in the Frequency Range 20 Hz — 540 kHz on Ogo 6. J. Geoph. Res., 76 (1971), 4477.

    Article  Google Scholar 

  4. T. Laaspere, W. C. Johnson, L. C. Semprebon: Additional Results from an Ogo 6 Experiment Concerning Ionospheric Electric and Electromagnetic Fields in the Range 20 Hz to 540 kHz. J. Geoph. Res., 78 (1973), 2926.

    Article  Google Scholar 

  5. D. A. Gurnett, G. W. Pfeiffer, R. R. Anderson, S. R. Mosier, D. P. Cauffman: Initial Observations of VLF Electric and Magnetic Fields with the Injun 5 Satellite. J. Geoph. Res., 74 (1969), 4631.

    Article  Google Scholar 

  6. S. R. Mosier, D. A. Gurnett: VLF Measurements of the Poyinting Flux along the Geomagnetic Field with the Injun 5 Satellite. J. Geoph. Res., 74 (1969), 5675.

    Article  Google Scholar 

  7. G. Charcosset, M. Tixier, Y. Corcuff, M. Garnier: Étude expérimentale et théorique de sifflements non guidés recus aux basses latitudes à bord du satellite Alouette 2. Ann. Geoph., 29 (1973), 279.

    Google Scholar 

  8. T. Laaspere, H. A. Taylor: Comparison of Certain VLF Noise Phenomena with the Lower Hybrid Resonance Frequency Calculated from Simultaneous Ion Composition Measurements. J. Geoph. Res., 75 (1970), 97.

    Article  Google Scholar 

  9. M. G. Morgan, P. E. Brown, W. C. Johnson, H. A. Taylor, Jr.: An Improved Comparison of the LHR Frequency Observed by a VLF Receiver and Calculated from Ion Density Measurements on the Same Spacecraft. Radio Sci., 12 (1977), 811.

    Article  Google Scholar 

  10. F. Jiříček, P. Tříska: LHR-Associated Phenomena Observed with the Interkosmos-10 Satellite. Space Res. XVI, Akad.-Vlg, Berlin 1976, 567.

    Google Scholar 

  11. J. Bošková, F. Jiříček, P. Tříska: Interpretation and Possibilities of Applying LHR Frequency Determined from Satellite VLF Measurements in Middle Geomagnetic Latitudes. Studia geoph. et geod., 26 (1982), 373.

    Article  Google Scholar 

  12. J. Bošková, F. Jiříček, P. Tříska: Latitude Variation of the LHR Frequency in the Outer Ionosphere as an Indicator of the Degree of Magnetospheric Perturbance. Studia. Geoph. et geod., 27 (1983), 298.

    Article  Google Scholar 

  13. F. Jiříček, Gy. Tarcsai: Analysis of Whistlers Observed Simultaneously aboard the Interkosmos-10 Satellite and on the Ground. Acta Geodaet., Geophys. et Montanist. Acad. Sci. Hung., 15 (1980), 97.

    Google Scholar 

  14. T. H. Stix: Theory of Plasma Waves. Mc Graw-Hill Book Comp., 1962.

  15. S. H. Gross: VLF Duct Associated with the Lower-Hybrid-Resonance Frequency in a Multi-Ion Upper Ionosphere. J. Geoph. Res., 75 (1970), 4235.

    Article  Google Scholar 

  16. Я. Бощкова, Ф. Иржичек, О. А. Мальцева, Е. Е. Титова, П. Триска, Д. Р. Щкляр: О природе нижнегибридных свистов. Геом. Аэроном., 28 (1988), 912.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Geophysical Institute of the Czechosl. Acad. Sci., Prague

    J. Bošková, F. Jiříček & P. Tříska

  2. Inst. of Terr. Magnetism, Ionosphere and Radiowave Propagation, Acad. Sci. of the USSR, Troitsk

    D. R. Shklyar

  3. Polar Geophysical Institute, Acad. Sci. of the USSR, Apatity

    E. E. Titova

Authors
  1. J. Bošková
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. F. Jiříček
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. P. Tříska
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. D. R. Shklyar
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. E. E. Titova
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Bošková, J., Jiříček, F., Tříska, P. et al. LHR whistlers. Stud Geophys Geod 34, 137–146 (1990). https://doi.org/10.1007/BF02295833

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02295833

Keywords

Search

Navigation