Lidar returns from the upper atmosphere and possible causes of their generation
- 23 Downloads
New experimental data which confirm episodic occurrence of the correlation of light backscattering lidar signals from a 150–300 km altitude region with the plasma content in the nighttime F 2 layer of the ionosphere are presented. Analysis results of lidar observation data for 2008–2014 are given. A conclusion is drawn that these correlations occur when additional sources for ionosphere ionization appear. A hypothesis is discussed that the resonance scattering by excited atomic nitrogen ions is a possible cause of generation of these signals.
Keywordssounding atmosphere lidar scattering
Unable to display preview. Download preview PDF.
- 3.M. G. Deminov, “Earth’s ionosphere,” in Plasma Heliophysics, Ed. by L.M. Zelenyi and I. S. Veselovskii (Fizmatlit, Moscow, 2008), Vol. 2 [in Russian].Google Scholar
- 4.http://physics.nist.gov/PhysRefData/ASD/lines_form. htmlGoogle Scholar
- 5.R. L. Collins, L. Su, D. Lummerzheim, and R. A. Doe, “Investigating the auroral thermosphere with lidar,” inProc. of the Meeting “Characterising the Ionosphere” (RTO, Neuilly-sur-Seine, 2006), pp. 2-1-2-14.Google Scholar
- 6.P. G. Richards, “Reexamination of ionospheric photo-chemistry,” J. Geophys. Res., A 116 (08307) (2011).Google Scholar
- 7.V. V. Bychkov, Yu. A. Nepomnyashchiy, A. S. Perezho-gin, and B. M. Shevtsov, “Lidar returns from the upper atmosphere of Kamchatka on observations in 2008–2014,” Earth, Planets Space 66 (150) (2014). doi 10.1186/s40623-014-0150-6Google Scholar