Optical properties of soot-water drop agglomerates: An experimental study

E.F. Mikhailov, S.S. Vlasenko, I.A. Podgorny, V. Ramanathan, C.E. Corrigan

Результат исследований: Научные публикации в периодических изданияхстатья

145 Цитирования (Scopus)

Аннотация

Black carbon (BC) and organic carbon (OC) are the largest contributors to the aerosol absorption in the atmosphere, yet the absorption cross sections of BC and OC per unit mass are subject to a large uncertainty due to morphology, physicochemical properties, and the mixing state of carbonaceous particles. Theoretical studies suggest the possibility of an enhanced absorption by soot–cloud drop agglomerates; however, the magnitude of the effect has never been measured directly and remains highly uncertain. This study is a laboratory experiment aimed at the modeling of direct radiation forcing due to soot-water interaction in the presence of glutaric acid, a water-soluble OC. Specifically, we generate, in the laboratory, hydrophobic soot (acetylene soot) and hydrophilic soot (mixture of acetylene soot and glutaric acid) and investigate the structural and optical properties of hydrophobic and hydrophilic soot particles in dry and water-saturated air. Hydrophobic soot (HBS) particles do not exhibit any structural
Язык оригиналаанглийский
Страницы (с-по)doi:10.1029/2005JD006389
ЖурналJournal of Geophysical Research
Том111
СостояниеОпубликовано - 2006
Опубликовано для внешнего пользованияДа

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