Augmentation of natural ionospheric plasma turbulence by HF heater waves

M. C. Lee, E. M C Klien, W. J. Burke, A. X. Zhang, R. J. Riddolls, Spencer Kuo, M. P. Sulzer, B. Isham

Research output: Contribution to journalArticle

Abstract

HF heating offers a powerful technique for controlled studies of ionospheric plasma turbulence. Heater waves generate large plasma density depletions and sheet-like ionospheric irregularities in the F region, which can give rise to spread F backscatter. Electric fields associated with the induced irregularities can seed plasma instabilities, driven by such environmental causes as density gradients and ambient electric fields, to enhance spread F signatures. Significant reductions in the height-integrated radar backscatter power, measured during the HF heating, indicate the depletion of magnetic flux tubes. Density gradients at the edges of the depletions provide new sources of free energy to augment ionospheric plasma turbulence, enhancing the spread F processes. Furthermore, depleted magnetic flux tubes create and/or alter ionospheric ducts thus affecting radio wave propagation.

Original languageEnglish (US)
Pages (from-to)37-40
Number of pages4
JournalGeophysical Research Letters
Volume26
Issue number1
DOIs
StatePublished - Jan 1 1999

Fingerprint

plasma turbulence
spread F
heaters
ionospherics
turbulence
plasma
depletion
augmentation
irregularities
backscatter
magnetic flux
electric field
tubes
heating
gradients
electric fields
magnetohydrodynamic stability
radio wave
radio waves
F region

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

Lee, M. C., Klien, E. M. C., Burke, W. J., Zhang, A. X., Riddolls, R. J., Kuo, S., ... Isham, B. (1999). Augmentation of natural ionospheric plasma turbulence by HF heater waves. Geophysical Research Letters, 26(1), 37-40. https://doi.org/10.1029/1998GL900266

Augmentation of natural ionospheric plasma turbulence by HF heater waves. / Lee, M. C.; Klien, E. M C; Burke, W. J.; Zhang, A. X.; Riddolls, R. J.; Kuo, Spencer; Sulzer, M. P.; Isham, B.

In: Geophysical Research Letters, Vol. 26, No. 1, 01.01.1999, p. 37-40.

Research output: Contribution to journalArticle

Lee, MC, Klien, EMC, Burke, WJ, Zhang, AX, Riddolls, RJ, Kuo, S, Sulzer, MP & Isham, B 1999, 'Augmentation of natural ionospheric plasma turbulence by HF heater waves', Geophysical Research Letters, vol. 26, no. 1, pp. 37-40. https://doi.org/10.1029/1998GL900266
Lee, M. C. ; Klien, E. M C ; Burke, W. J. ; Zhang, A. X. ; Riddolls, R. J. ; Kuo, Spencer ; Sulzer, M. P. ; Isham, B. / Augmentation of natural ionospheric plasma turbulence by HF heater waves. In: Geophysical Research Letters. 1999 ; Vol. 26, No. 1. pp. 37-40.
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