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Proceedings Paper

The effects of aerosol-cloud interaction and its influence on radiation in the INMCM5 climate model
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Paper Abstract

In this paper we consider the influence of various parametrizations of aerosol-cloud-interaction on the total solar radiation and cloud transmission at the earth's surface according to the INMCM5 model. Several 10-year numerical experiments were carried out with/without three parametrizations of this interaction. In addition, numerical experiments with different emissions of aerosol precursor gases for 1980 and 2005 were performed. We show that the account for aerosol particles in aerosol-cloud interaction leads to an increase in the cloudiness by an average of 0.1 and a decrease in the total radiation by 25 W/m2. As a result, there is a decrease in the air temperature by an average of 2 degrees for all months of the year. This result confirms the theoretical assumptions about the increase of the cloud albedo effect with a decrease in the effective radius of the particles. However, numerical experiments with different emissions of aerosol precursor gases for 2005 and for 1980 revealed that at lower emissions there is a decrease in cloud transmission and an increase in the cloudiness. The probable causes of the observed effect are discussed.

Paper Details

Date Published: 18 December 2019
PDF: 6 pages
Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 112081O (18 December 2019); doi: 10.1117/12.2540377
Show Author Affiliations
A. A. Poliukhov, M.V. Lomonosov Moscow State Univ. (Russian Federation)
Hydrometcenter of Russia (Russian Federation)
N. E. Chubarova, M.V. Lomonosov Moscow State Univ. (Russian Federation)
E. M. Volodin, Institute of Numerical Mathematics (Russian Federation)


Published in SPIE Proceedings Vol. 11208:
25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Oleg A. Romanovskii; Gennadii G. Matvienko, Editor(s)

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