Abstract
Results of two-frequency lidar sounding of the atmosphere in the altitude range 25–600 km at the Kamchatka lidar station (52°58′17″ N, 158°15′07″ E) are discussed. The possibility of a manifestation of resonance scattering in the formation of imaginary aerosols in the middle atmosphere is studied. Examples are given where strong scattering at wavelengths of 532.08 and 561.106 nm in the middle atmosphere can be explained by resonance scattering on excited ions of atomic oxygen and nitrogen. These ions may appear as a result of the ionization of the atmosphere by relativistic electrons.
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Funding
The work was carried out within the state assignment on the theme (2021–2023) Physical Processes in the System of Near Space and Geospheres under Solar and Lithospheric Impacts. Registration no. АААА-А21-121011290003-0 with the use of equipment of the Collective Use Center of the Institute of Cosmophysical Research and Radio Wave Propagation, Far Eastern Branch, Russian Academy of Sciences, North-Eastern Heliogeophysical Center (SKR_558279, UNU 351757). The work was partly financially supported by the Russian Foundation for Basic Research (grant nos. 19-05-00543 A and 19-5-700008 r_a).
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Translated by O. Ponomareva
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Bychkov, V.V., Seredkin, I.N. & Marichev, V.N. Scattering on Excited Ions as a Reason for Detecting Imaginary Aerosols in the Middle Atmosphere. Atmos Ocean Opt 34, 104–110 (2021). https://doi.org/10.1134/S1024856021020032
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DOI: https://doi.org/10.1134/S1024856021020032