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Atmospheric and Oceanic Optics

2014 year, number 12

Photophoretic interaction of aerosol particles and its effect on coagulation in the atmosphere

A. A. Cheremisin1,2, A. V. Kushnarenko1
1Siberian Federal University, 79, Svobodny Prospect, Krasnoyarsk, 660041, Russia
2Krasnoyarsk Railway Institute, 89 Lado Ketskhoveli str., 660028, Krasnoyarsk region, Krasnoyarsk, Russia
Keywords: photophoretic interaction, aerosol particles, coagulation, radiation


The paper presents results of an investigation of photophoretic interaction between spherical aerosol particles depending on the atmospheric altitude and particle size. The photophoretic interaction is shown to decrease the coagulation constant of submicron particles strongly absorbing solar radiation in the daytime by orders of magnitude as compared to the constant in darkness.