Author(s)

Peter Lehmann, Irene Xueref and Florent Doming

Abstract

Preliminary Theoretical Investigation of Solute Retention during Riming Guest contribution Peter Lehmann*, Irene Xueref^ and Florent Doming ' CNRS Labomtoire EPMMADYLAM, BP 95, 38402 Saint Martin d'Heres cedex, France ^CNRS Laboratoire de Glaciologie, BP 96, 38402 Saint Martin d'Heres cedex, France Introduction Understanding the ice composition in clouds is an important challenge for atmospheric chemists. When ice crystals and supercooled water droplets coexist, ice chemistry is mostly determined by the amount of supercooled droplets that freeze upon impacting ice crystals, a process called riming (Kalina and Puxbaum, 1994; Mitchell and Lamb, 1989). Trace gases are much less soluble in ice than in water, and solute retention during riming must be understood to predict ice composition. Laboratory experiments and field studies disagree on the efficiency of solute retention. Iribame

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