Response of ionospheric electron density profile to the action of powerful HF radio-wave radiation
Author:
Legostaeva Yuliya1, Shindin Alexei2, Grach Savely2
Affiliation:
1. N. I. Lobachevsky State University of Nizhny Novgorod 2. the Leading and National Research Nizhigorodsky State University named after N.I. Lobachevsky
Abstract
Using electron density and temperature equations, we have modeled the dynamics of the electron density profile in the ionosphere due to the expulsion of plasma from localization regions of plasma waves, pumped by high-power HF radio waves, i.e. wave reflection and upper hybrid resonance regions. Causes of the ionospheric plasma expulsion are an increase in the gas-kinetic pressure due to the ohm heating of electrons by plasma waves, and the high-frequency pressure of plasma waves (ponderomotive expulsion). We have established that the ponderomotive expulsion develops more rapidly and is responsible for the formation of local regions of plasma density depletion near plasma resonances, whereas the gas-kinetic pressure increase is responsible for the formation of lower-density region, which is slower in time and more extended and smoother in height. The results obtained qualitatively agree with the data from the experiment conducted at the HAARP facility in 2014.
Publisher
Infra-M Academic Publishing House
Subject
Space and Planetary Science,Atmospheric Science,Geophysics
Reference29 articles.
1. Benediktov E.A., Getmantsev G.G., Zyuzin V.A., Ignatiev Yu.A. Heating of the E-region of the ionosphere by powerful short-wave radio emission. Geomagnetism and Aeronomy. 1980, vol. 20, iss. 5, pp. 955–956, (In Russian)., Benediktov E.A., Getmantsev G.G., Zyuzin V.A., Ignatiev Yu.A. Heating of the E-region of the ionosphere by powerful short-wave radio emission. Geomagnetism and Aeronomy. 1980, vol. 20, iss. 5, pp. 955–956, (In Russian). 2. Berezin I.V., Belyansky V.B., Budko N.I., Vaskov V.V., Dimant Y.S., Zyuzin V.A., et al. Diagnostics of the process of excitation of plasma oscillations by the field of a powerful radio wave, Geomagnetism and Aeronomy. 1991, vol. 31, iss. 5, pp. 874–880. (In Russian)., Berezin I.V., Belyansky V.B., Budko N.I., Vaskov V.V., Dimant Y.S., Zyuzin V.A., et al. Diagnostics of the process of excitation of plasma oscillations by the field of a powerful radio wave, Geomagnetism and Aeronomy. 1991, vol. 31, iss. 5, pp. 874–880. (In Russian). 3. Bernhardt P.A., Siefring C.L., Briczinski S.J., McCarrick M., Michell R.G. Large ionospheric disturbances produced by the HAARP HF facility. Radio Sci. 2016, vol. 51, iss. 7, pp. 1081–1093. DOI: 10.1002/ 2015RS005883., Bernhardt P.A., Siefring C.L., Briczinski S.J., McCarrick M., Michell R.G. Large ionospheric disturbances produced by the HAARP HF facility. Radio Sci. 2016, vol. 51, iss. 7, pp. 1081–1093. DOI: 10.1002/ 2015RS005883. 4. Boyko G.N., Vaskov V.V., Golyan S.F., Gurevich A.V., Dimant Ya.S., Zyuzin V.A., et al. Study of defocusing of radio waves under the influence of high-power radio emission. Izv. Vuz. Radiophysics. 1985, vol. 28, iss. 8, pp. 960–970. (In Russian)., Boyko G.N., Vaskov V.V., Golyan S.F., Gurevich A.V., Dimant Ya.S., Zyuzin V.A., et al. Study of defocusing of radio waves under the influence of high-power radio emission. Izv. Vuz. Radiophysics. 1985, vol. 28, iss. 8, pp. 960–970. (In Russian). 5. Carlson H.C., Jensen J.B. HF accelerated electron fluxes, spectra, and ionization. Earth, Moon, and Planets. 2014. vol. 116, pp. 1–18. DOI: 10.1007/ s11038-014-9454-6., Carlson H.C., Jensen J.B. HF accelerated electron fluxes, spectra, and ionization. Earth, Moon, and Planets. 2014. vol. 116, pp. 1–18. DOI: 10.1007/ s11038-014-9454-6.
|
|