Variations of ion concentration of F2 region of the ionosphere in the vicinity of morning terminator from data of satellite observations

1Fedorenko, AK
1Space Research Institute of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Kyiv, Ukraine
Kosm. nauka tehnol. 2003, 9 ;(5-6):089-095
Publication Language: Russian
Variations of ion concentration caused by sunrise are analysed on the basis of satellite observations of low-latitude F2 region of the ionosphere. The photoionization influence on ion composition is caused both by direct increase of plasma density and by the variation of chemical reaction rates. A simplified model is constructed in the photochemical approximation. The model describes adequately detected changes of density of various ion components after the beginning of ionization.
Keywords: F2 region, ion concentration, ionosphere
1. Vasil'ev V. P., Shubova R. S. Peculiarities of the behavior of the critical frequency of the P2 region of the ionosphere during the sunrise period: Preprint No. 46, Radioastronomicheskij in-t AN USSR, 18 p. (Kharkov, 1990) [in Russian].
2. Gordiets B. F., Markov M. N., Shelepin L. A. Theory of infrared radiation from near-earth space. In: Infrared radiation in the earth's atmosphere and in space. (Trudy Lebedev Physical Institute, AN SSSR, Vol. 105), 7—71 (Nauka, Moscow, 1978) [in Russian].
3. Marov M. Ya., Kolesnichenko A. V. Introduction to the Planetary Aeronomy, 456 p. (Nauka, Moscow, 1987) [in Russian].
4. Fishkova L. M. The night airglow of the earth mid-latitude upper atmosphere, 271 p.
(Metsniereba, Tbilisi, 1983) [in Russian].
5. Kelley M. C. The Earth's ionosphere plasma physics and electrodynamics. Akad. Press. Inc. Inter. Geophys. Series, 471 p. (1989).
6. Schunk R. W., Nagy A. F. Electron temperatures in the F region of the ionosphere: theory and observations. Rev. Geophys. and Space Phys., 16 (3), 355—399 (1978).

7. Strickland D. J., Bishop J., Evans J. S., et al. Atmospheric Ultraviolet Radiance Integrated Code (AURIC): theory, software architecture, inputs, and selected results. J. Quant. Spectrosc. and Radiat. Transfer, 62, 689—742 (1999).