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The concentration measurement of hydrogen molecules in the atmosphere: lidar equation computer simulation for the differential absorption and scattering
https://doi.org/10.32446/0368-1025it.2022-11-38-43
Abstract
The issues of improving the accuracy of lidar measurements of the concentration of hydrogen molecules in the atmosphere are considered. A computer simulation of the lidar equation was carried out for differential absorption and scattering by hydrogen molecules during vertical remote sensing of the atmosphere to a height of up to 1500 m taking into account the ratio of the halfwidths of the lasing lines and the lidar apparatus function. It is shown by the computer simulation results that the relative error value sharply falls in the ranging distance up to 50 m. The relative error values remain almost unchanged and not exceeds 0.02 at the distance after 800 m. These results will be applied to develop new differential absorption and scattering lidars for the remote sensing of the hydrogen molecules in the atmosphere.
Keywords
differential absorption and scattering lidar,
equation,
hydrogen molecules,
atmosphere,
relative error
Supporting agencies: the work was supported by the RFBR grants no. 19-42-230004 and no. 19-45-230009.
About the Authors
V. E. Privalov
Peter the Great St. Petersburg Polytechnic University
Russian Federation
Russian Federation
Vadim E. Privalov
St. Petersburg
V. G. Shemanin
V. G. Shukhov Belgorod State Technological University, Novorossiysk Branch;
Novorossiysk Polytechnic Institute of Kuban State Technological University
Russian Federation
Russian Federation
Valery G. Shemanin
Novorossiysk
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Review
For citations:
Privalov V.E., Shemanin V.G. The concentration measurement of hydrogen molecules in the atmosphere: lidar equation computer simulation for the differential absorption and scattering. Izmeritel`naya Tekhnika. 2022;(11):38-43. (In Russ.) https://doi.org/10.32446/0368-1025it.2022-11-38-43
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