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Atmospheric and Oceanic Optics

2012 year, number 11

Seasonal peculiarities of manifestation of different types of gygrograms for the scattering coefficient

S.A. Terpugova, T.A. Dokunina, E.P. Jausheva, M.V. Panchenko
Keywords: аэрозоль, конденсационная активность, гигрограмма, aerosol, condensation activity, hygrogram

Abstract

This paper considers the results of 12-year long investigations of dependencies of the aerosol scattering coefficient on relative humidity at its controlled growth (hygrograms). It is revealed that this function cannot be always represented in single-parameter form in the entire range of variations of the relative humidity. The well-pronounced phase transition is sometimes observed at its certain value. The frequency of occurrence of hygrograms with phase transition in different seasons and in various air masses is analyzed. The substances are determined, the presence of which in aerosol particles can cause the appearance of the phase transition.