Open AccessIonospheric observations of F region artificial plasma turbulence, modified by powerful X‐mode radio waves
Author(s) -
Frolov V. L.,
Kagan L. M.,
Sergeev E. N.,
Komrakov G. P.,
Bernhardt P. A.,
Goldstein J. A.,
Wagner L. S.,
Selcher C. A.,
Stubbe P.
Publication year - 1999
Publication title -
journal of geophysical research: space physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.67
H-Index - 298
eISSN - 2156-2202
pISSN - 0148-0227
DOI - 10.1029/1998ja900182
Subject(s) - ionosphere , turbulence , physics , plasma , mode (computer interface) , computational physics , f region , ionospheric heater , parametric statistics , thermal , radio wave , plasma instability , wave turbulence , geophysics , atmospheric sciences , meteorology , nuclear physics , statistics , mathematics , quantum mechanics , computer science , operating system
We study the influence of additional X ‐mode heating of the ionospheric plasma on the features of artificial ionospheric turbulence, induced in the ionospheric F region by O ‐mode waves over the “Sura” heating facility (Nizhny Novgorod, Russia). The X heating is shown to suppress the generation of HF plasma turbulence resulting from the development of both the parametric decay and thermal parametric instabilities. Typical times of variations in the turbulence intensity change from ≤0.1 s to ∼10 s, strongly depending on the heating scheme. Aftereffects of the X heating last up to 30–60 s. We distinguish at least three types of phenomena, according to the observed typical times of the processes, and discuss possible reasons for each of them.