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- Title
Absorption Coefficient of Cold Cloudy Aerosol at Frequencies of 100–300 GHz.
- Authors
Bordonskiy, G. S.; Orlov, A. O.
- Abstract
Calculations of the mass absorption coefficient in the water aerosol of cloud formations at temperatures of 0 to –50°C at frequencies of 100–300 GHz have been performed. The two-frequency Debye model for the dielectric constant is used, in which the relaxation frequencies of supercooled water were obtained from the new experiments performed in the centimeter range. One relaxation frequency of them takes on the values of 10–1 GHz and the other 300–20 GHz in the specified temperature range. The calculations are compared to the available experimental data of the other authors up to the frequency of 170 GHz and the temperature of –30°C. There is a significant scatter in the experimental data on the mass absorption coefficient and the absence of satisfactory models for supercooled water below –20°C. On the basis of this research, it is assumed that the proposed refined formulas for the dielectric constant make it possible to determine the mass absorption coefficient up to frequencies of 200–300 GHz.
- Subjects
ABSORPTION coefficients; AEROSOLS; PERMITTIVITY
- Publication
Izvestiya, Atmospheric & Oceanic Physics, 2022, Vol 58, Issue 9, p1143
- ISSN
0001-4338
- Publication type
Article
- DOI
10.1134/S0001433822090055