Estimation of the most probable values of the aerosol extinction of radiation in the near-ground atmosphere of the city of Tomsk

V. N. Uzhegov; M. V. Panchenko; Yu. A. Pkhalagov

doi:10.1117/12.2542487

18 December 2019 Estimation of the most probable values of the aerosol extinction of radiation in the near-ground atmosphere of the city of Tomsk

V. N. Uzhegov, M. V. Panchenko, Yu. A. Pkhalagov

Author Affiliations +

Proceedings Volume 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 112086A (2019) https://doi.org/10.1117/12.2542487
Event: XXV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2019, Novosibirsk, Russian Federation

Abstract

The results of twenty-year-long round-the-clock measurements of the spectral transmittance of the atmosphere on a 1 km long horizontal near-ground path are discussed. The measurements were carried out in the suburb of Tomsk from March to October in 1997 - 2017. More than 10000 hourly average spectral aerosol extinction coefficients β(λ) were obtained in the wavelength range from 0.45 to 3.9 μm. The interannual and interseasonal variability of the components of the aerosol extinction is studied. The most probable values of the coefficients β(λ), which can be characterized as background for this region, are estimated. These values at the wavelengths of 0.45, 0.55, 1.06 and 3.9 μm are: 150, 100, 65 and 45 Mm^-1, respectively. The interannual differences of the most probable and annual average values of the aerosol extinction coefficients are shown.

Citation Download Citation

V. N. Uzhegov, M. V. Panchenko, and Yu. A. Pkhalagov "Estimation of the most probable values of the aerosol extinction of radiation in the near-ground atmosphere of the city of Tomsk", Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 112086A (18 December 2019); https://doi.org/10.1117/12.2542487

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