Analysis of the Correctness of Retrieving the Vertical Atmospheric Temperature Distribution from Lidar Signals of Molecular Scattering at the Main Lidar of the Siberian Lidar Station

Bobrovnikov, S. M.; Жарков, В. Н.; Nadeev, A. I.; Trifonov, D. A.

doi:10.1134/s1024856022060057

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2023

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“…To calculate the temperature profile according to the generally accepted technique 4 , it is assumed that the temperature and pressure at the calibration point are known. Then, we can write the relation…”

Section: Methods and Resultsmentioning

confidence: 99%

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Problems of retrieval of vertical atmospheric temperature distribution from Rayleigh scattering LIDAR signal in a high spectral resolution LIDAR

Nadeev,

Bobrovnikov,

Zharkov

et al. 2023

29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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The paper considers the problem of solving the inverse problem of retrieval of the vertical distribution of atmospheric temperature from a Rayleigh scattering lidar signal in a high spectral resolution lidar. It is shown that the lidar signal, filtered from the aerosol scattering signal using a molecular filter, acquires a parasitic dependence on the atmospheric temperature due to a change in the width and shape of the Rayleigh scattering line contour. Signal distortions have a significant effect on the result of retrieval of the vertical temperature distribution and do not allow using the standard signal processing technique. To eliminate the influence of the signal filtering effect, the advanced temperature retrieval algorithms should be applied.

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Section: Methods and Resultsmentioning

confidence: 99%

“…In single-frequency laser sounding, the temperature profile retrieval algorithms presented in works [1][2][3][4] are widely used. All of them assume the absence of aerosol scattering in the temperature retrieval region.…”

Section: Introductionmentioning

confidence: 99%