Simulations of ionospheric turbulence produced by HF heating near the upper hybrid layer
Najmi, A. and Eliasson, B. and Shao, X. and Milikh, G. and Papadopoulos, K. (2016) Simulations of ionospheric turbulence produced by HF heating near the upper hybrid layer. Radio Science, 51 (6). pp. 704-717. ISSN 0048-6604 (https://doi.org/10.1002/2015RS005866)
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Abstract
Heating of the ionosphere by high-frequency (HF), ordinary (O) mode electromagnetic waves can excite magnetic field aligned density striations (FAS), associated with upper and lower hybrid turbulence and electron heating. We have used Vlasov simulations in one spatial and two velocity dimensions to study the induced turbulence in the presence of striations when the O-mode pump is mode converted to large amplitude upper hybrid oscillations trapped in a striation. Parametric processes give rise to upper and lower hybrid turbulence, as well as to large amplitude, short wavelength electron Bernstein waves. The latter excite stochastic electron heating when their amplitudes exceed a threshold for stochasticity, leading to a rapid increase of the electron temperature by several thousands of Kelvin. The results have relevance for high latitude heating experiments.
ORCID iDs
Najmi, A., Eliasson, B. ORCID: https://orcid.org/0000-0001-6039-1574, Shao, X., Milikh, G. and Papadopoulos, K.;-
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Item type: Article ID code: 56223 Dates: DateEvent22 June 2016Published29 May 2016Published Online17 April 2016AcceptedSubjects: Science > Physics Department: Faculty of Science > Physics Depositing user: Pure Administrator Date deposited: 22 Apr 2016 15:11 Last modified: 12 Sep 2024 00:42 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/56223