Ionospheric plasma bubble generated by Arecibo heater

M. C. Lee, R. J. Riddolls, W. J. Burke, M. P. Sulzer, E. M C Klien, M. J. Rowlands, Spencer Kuo

Research output: Contribution to journalArticle

Abstract

During recent experiments ionospheric plasma bubbles were excited by the upgraded HF heater at Arecibo. These plasma bubbles were observed by radar in the midnight sector with the entire flux tube in darkness. A simple model is outlined to explain the dynamics of density depletions generated during O-mode wave heating of the F layer. We suggest that thermal expansion of plasma away from the heated volume leads to enhanced recombination along the flux tube. In the absence of photoionization sources, density depletions develop along the excited flux tube. The discontinuity of gravity-driven currents at the walls of the depleted region requires development of polarization electric fields. Eastward polarization electric fields of ∼2.5 mV/m within the flux tube caused an observed plasma bubble to drift vertically at a speed of 70 m/s.

Original languageEnglish (US)
Pages (from-to)579-582
Number of pages4
JournalGeophysical Research Letters
Volume25
Issue number5
StatePublished - Mar 1 1998

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plasma bubbles
heaters
ionospherics
bubble
tubes
plasma
electric field
depletion
polarization
darkness
electric fields
thermal expansion
F region
recombination
radar
photoionization
discontinuity
sectors
gravity
gravitation

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

Lee, M. C., Riddolls, R. J., Burke, W. J., Sulzer, M. P., Klien, E. M. C., Rowlands, M. J., & Kuo, S. (1998). Ionospheric plasma bubble generated by Arecibo heater. Geophysical Research Letters, 25(5), 579-582.

Ionospheric plasma bubble generated by Arecibo heater. / Lee, M. C.; Riddolls, R. J.; Burke, W. J.; Sulzer, M. P.; Klien, E. M C; Rowlands, M. J.; Kuo, Spencer.

In: Geophysical Research Letters, Vol. 25, No. 5, 01.03.1998, p. 579-582.

Research output: Contribution to journalArticle

Lee, MC, Riddolls, RJ, Burke, WJ, Sulzer, MP, Klien, EMC, Rowlands, MJ & Kuo, S 1998, 'Ionospheric plasma bubble generated by Arecibo heater', Geophysical Research Letters, vol. 25, no. 5, pp. 579-582.
Lee MC, Riddolls RJ, Burke WJ, Sulzer MP, Klien EMC, Rowlands MJ et al. Ionospheric plasma bubble generated by Arecibo heater. Geophysical Research Letters. 1998 Mar 1;25(5):579-582.
Lee, M. C. ; Riddolls, R. J. ; Burke, W. J. ; Sulzer, M. P. ; Klien, E. M C ; Rowlands, M. J. ; Kuo, Spencer. / Ionospheric plasma bubble generated by Arecibo heater. In: Geophysical Research Letters. 1998 ; Vol. 25, No. 5. pp. 579-582.
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