Aerosol Effects on Temperature Forecast in the COSMO-Ru Model

Aerosol effects on the forecast of surface temperature, as well as temperature at the levels of 850 and 500 hPa over Europe and the European part of Russia are studied using various aerosol climatologies: Tanre, Tegen, and MACv2. The numerical experiments with the COSMO-Ru model are performed for th...

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Bibliographic Details
Published in:Russian meteorology and hydrology 2021, Vol.46 (1), p.19-27
Main Authors: Poliukhov, A. A., Blinov, D. V.
Format: Article
Language:English
Subjects:
Aerosol effects
Aerosols
Air temperature
Atmospheric Sciences
Clear sky
Earth and Environmental Science
Earth Sciences
Mathematical models
Meteorology
Numerical experiments
Surface temperature
Surface-air temperature relationships
Temperature effects
Weather forecasting
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Summary:Aerosol effects on the forecast of surface temperature, as well as temperature at the levels of 850 and 500 hPa over Europe and the European part of Russia are studied using various aerosol climatologies: Tanre, Tegen, and MACv2. The numerical experiments with the COSMO-Ru model are performed for the central months of the seasons (January, April, July, and October) in 2017. It is found that a change in the simulated surface air temperature over land can reach 1°С when using Tegen and MACv2 data as compared to Tanre. At 850 and 500 hPa levels, the changes do not exceed 0.4°С. At the same time, it is shown that a decrease in the root-mean-square error of 2-m air temperature forecast at individual stations reaches 0.5°С when using Tegen and MACv2 data and 1°С for clear-sky conditions in Moscow.
ISSN:1068-3739
1934-8096
DOI:10.3103/S1068373921010039