E3S Web Conf.
Volume 196, 2020XI International Conference “Solar-Terrestrial Relations and Physics of Earthquake Precursors”
|Number of page(s)||6|
|Section||Atmosphere Physics and Solar-Terrestrial Relations|
|Published online||16 October 2020|
Scattering on excited atmospheric components as a cause of the increase of lidar signal in the upper and middle atmosphere
Institute of Cosmophysical Researches and Radio Wave Propagation of the Far Eastern Branch of the Russian Academy of Sciences, Paratunka, Russia
* Corresponding author: firstname.lastname@example.org
The lidar data of the resonant scattering in the upper and middle Kamchatka atmosphere are analyzed. It is shown that the increase of the scattering signal at altitudes of 350-450 km at 561 nm may be due to the scattering of the maximum of layer F2 excited by precipitated electrons on ions. Large variations in the signal at these altitudes are caused by spatial plasma inhomogeneities in the ionosphere, as confirmed by the ionosonde data. The analysis of the interaction of a laser pulse with excited ions in the stratosphere is refined, and the effect of collisions on the lifetime is taken into account. It is shown that for the used lidar in the middle atmosphere for altitudes above 10 km, the conditions of guaranteed interaction with the radiation of each ion born in the strobe are satisfied.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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