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7 December 2022 Lidar estimation of the vertical profile of the structural characteristic of the refractive index of the atmosphere
Igor A. Razenkov
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Proceedings Volume 12341, 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 123412N (2022) https://doi.org/10.1117/12.2644553
Event: 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2022, Tomsk, Russia
Abstract
A method of probing the profile of the structural characteristic of the refractive index using a micro-pulse turbulent lidar BSE-4 has been tested. The sounding path included a horizontal section 130 m long, located above the roof of the building. A flat mirror directs the laser beam vertically upwards. The high intensity of optical turbulence above the roof contributed to the appearance of fluctuations in the intensity of radiation in the laser beam. Turbulence above the roof was controlled by a scintillometer. Measurements were made at night during three days. An increase in the intensity of fluctuations of the refractive index was recorded in the altitude range from 12 to 18 km at the level of 10-16 m-2/3. The intensity of optical turbulence at this altitude regularly increased over time, while the wind speed at an altitude of 15 km, obtained from meteorological observations, regularly decreased. The results consistent with analytical models of vertical profile of the structure parameter of atmospheric refractive index.
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Igor A. Razenkov "Lidar estimation of the vertical profile of the structural characteristic of the refractive index of the atmosphere", Proc. SPIE 12341, 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 123412N (7 December 2022); https://doi.org/10.1117/12.2644553
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KEYWORDS
LIDAR
Refractive index
Turbulence
Mirrors
Atmospheric optics
Backscatter
Optical turbulence
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