Uptake of gases onto ice and reactions of species on the ice surface are discussed in the context of ice-cores. Because of a lack of information that is directly applicable to ice cores, occurrence of certain processes are inferred from the results of lower temperature studies carried out to understand polar stratospheric clouds (PSCs). It is suggested that strong acids will be efficiently taken up. Easily-hydrolyzable species such as N 2 O 5 and CIONO 2 will be converted to HNO 3 on ice. The extent of absorption of weak acids and other species such as O 3 will depend on the heat of absorption and the gas phase partial pressure of the gas. The reactions of a few other species on ice at warmer temperatures of the ice sheets are proposed to be similar to those for PSCs.
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- Processes at Ice Surfaces: Physical Uptake and Reaction
A. R. Ravishankara
- Springer Berlin Heidelberg