Rights statement: This is an author-created, un-copyedited version of an article accepted for publication/published in Plasma Science and Technology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi:10.1088/2058-6272/aac71d
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Threshold of parametric instability in the ionospheric heating experiments
AU - Wang, X.
AU - Zhou, C.
AU - Liu, M.
AU - Honary, Farideh
AU - Ni, B.
AU - Zhao, Z.
N1 - This is an author-created, un-copyedited version of an article accepted for publication/published in Plasma Science and Technology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi:10.1088/2058-6272/aac71d
PY - 2018/9/4
Y1 - 2018/9/4
N2 - 'Many observations in the ionospheric heating experiment, by a powerful high frequency electromagnetic wave with ordinary polarization launched from a ground-based facility, is attributed to parametric instability (PI). In this paper, the general dispersion relation and the threshold of the PI excitation in the heating experiment are derived by considering the inhomogeneous spatial distribution of pump wave field. It is shown that the threshold of PI is influenced by the effective electron and ion collision frequencies and the pump wave frequency. Both collision and Landau damping should be considered in the PI calculation. The derived threshold expression has been used to calculate the required threshold for excitation of PI for several ionospheric conditions during heating experiments conducted employing EISCAT high frequency transmitter in Tromsø, Norway, on 2nd October 1998, 8th November 2001, 19th October 2012 and 7th July 2014. The results indicate that the calculated threshold is in good agreement with the experimental observations. © 2018 Hefei Institutes of Physical Science, Chinese Academy of Sciences and IOP Publishing.
AB - 'Many observations in the ionospheric heating experiment, by a powerful high frequency electromagnetic wave with ordinary polarization launched from a ground-based facility, is attributed to parametric instability (PI). In this paper, the general dispersion relation and the threshold of the PI excitation in the heating experiment are derived by considering the inhomogeneous spatial distribution of pump wave field. It is shown that the threshold of PI is influenced by the effective electron and ion collision frequencies and the pump wave frequency. Both collision and Landau damping should be considered in the PI calculation. The derived threshold expression has been used to calculate the required threshold for excitation of PI for several ionospheric conditions during heating experiments conducted employing EISCAT high frequency transmitter in Tromsø, Norway, on 2nd October 1998, 8th November 2001, 19th October 2012 and 7th July 2014. The results indicate that the calculated threshold is in good agreement with the experimental observations. © 2018 Hefei Institutes of Physical Science, Chinese Academy of Sciences and IOP Publishing.
KW - ionospheric modification
KW - ionospheric plasma
KW - ordinary polarized EM wave
KW - parametric instability
KW - Electromagnetic waves
KW - Grain size and shape
KW - Heating
KW - Plasma diagnostics
KW - Plasma stability
KW - Dispersion relations
KW - Effective electrons
KW - High frequency electromagnetic waves
KW - Inhomogeneous spatial distribution
KW - Ionospheric conditions
KW - Ionospheric plasmas
KW - Parametric instabilities
KW - Electromagnetic wave polarization
U2 - 10.1088/2058-6272/aac71d
DO - 10.1088/2058-6272/aac71d
M3 - Journal article
VL - 20
JO - Plasma Science and Technology
JF - Plasma Science and Technology
SN - 1009-0630
IS - 11
M1 - 115301
ER -