Excitation and diagnosis of cascading Langmuir waves in ionospheric plasmas at Gakona, Alaska

L. M. Burton, J. A. Cohen, R. Pradipta, A. Labno, M. C. Lee, O. Batishchev, D. L. Rokusek, Spencer Kuo, B. J. Watkins, S. Oyama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ionospheric plasma heating experiments were conducted at Gakona, Alaska to investigate cascading spectra of Langmuir wave turbulence, excited by parametric instabilities diagnosed by Modular UHF Ionospheric Radar (MUIR). This work is aimed at testing the recent theory of Kuo and Lee (2005 J. Geophys. Res. 110 A01309) that addresses how the cascade of Langmuir waves can distribute spatially via the resonant and non-resonant decay processes. The non-resonant cascade proceeds at the location where parametric decay instability (PDI) or oscillating two-stream instability (OTSI) is excited and severely hampered by the frequency mismatch effect. By contrast, the resonant cascade, which takes place at lower matching heights, has to overcome the propagation loss of the Langmuir pump waves in each cascade step. Our experimental results have corroborated these predictions about the generation of cascading Langmuir waves by the HAARP heater.

Original languageEnglish (US)
Title of host publicationPhysica Scripta T
VolumeT132
DOIs
StatePublished - 2008
EventInternational Conference 'Turbulent Mixing and Beyond' - Trieste, Italy
Duration: Aug 18 2007Aug 26 2007

Other

OtherInternational Conference 'Turbulent Mixing and Beyond'
CountryItaly
CityTrieste
Period8/18/078/26/07

Fingerprint

ionospherics
cascades
excitation
ionospheric heating
plasma heating
decay
heaters
radar
turbulence
pumps
propagation
predictions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Burton, L. M., Cohen, J. A., Pradipta, R., Labno, A., Lee, M. C., Batishchev, O., ... Oyama, S. (2008). Excitation and diagnosis of cascading Langmuir waves in ionospheric plasmas at Gakona, Alaska. In Physica Scripta T (Vol. T132). [014030] https://doi.org/10.1088/0031-8949/2008/T132/014030

Excitation and diagnosis of cascading Langmuir waves in ionospheric plasmas at Gakona, Alaska. / Burton, L. M.; Cohen, J. A.; Pradipta, R.; Labno, A.; Lee, M. C.; Batishchev, O.; Rokusek, D. L.; Kuo, Spencer; Watkins, B. J.; Oyama, S.

Physica Scripta T. Vol. T132 2008. 014030.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Burton, LM, Cohen, JA, Pradipta, R, Labno, A, Lee, MC, Batishchev, O, Rokusek, DL, Kuo, S, Watkins, BJ & Oyama, S 2008, Excitation and diagnosis of cascading Langmuir waves in ionospheric plasmas at Gakona, Alaska. in Physica Scripta T. vol. T132, 014030, International Conference 'Turbulent Mixing and Beyond', Trieste, Italy, 8/18/07. https://doi.org/10.1088/0031-8949/2008/T132/014030
Burton LM, Cohen JA, Pradipta R, Labno A, Lee MC, Batishchev O et al. Excitation and diagnosis of cascading Langmuir waves in ionospheric plasmas at Gakona, Alaska. In Physica Scripta T. Vol. T132. 2008. 014030 https://doi.org/10.1088/0031-8949/2008/T132/014030
Burton, L. M. ; Cohen, J. A. ; Pradipta, R. ; Labno, A. ; Lee, M. C. ; Batishchev, O. ; Rokusek, D. L. ; Kuo, Spencer ; Watkins, B. J. ; Oyama, S. / Excitation and diagnosis of cascading Langmuir waves in ionospheric plasmas at Gakona, Alaska. Physica Scripta T. Vol. T132 2008.
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AU - Pradipta, R.

AU - Labno, A.

AU - Lee, M. C.

AU - Batishchev, O.

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AU - Watkins, B. J.

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AB - Ionospheric plasma heating experiments were conducted at Gakona, Alaska to investigate cascading spectra of Langmuir wave turbulence, excited by parametric instabilities diagnosed by Modular UHF Ionospheric Radar (MUIR). This work is aimed at testing the recent theory of Kuo and Lee (2005 J. Geophys. Res. 110 A01309) that addresses how the cascade of Langmuir waves can distribute spatially via the resonant and non-resonant decay processes. The non-resonant cascade proceeds at the location where parametric decay instability (PDI) or oscillating two-stream instability (OTSI) is excited and severely hampered by the frequency mismatch effect. By contrast, the resonant cascade, which takes place at lower matching heights, has to overcome the propagation loss of the Langmuir pump waves in each cascade step. Our experimental results have corroborated these predictions about the generation of cascading Langmuir waves by the HAARP heater.

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