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Gases important for cloud formation

07/12/2016 | Leibniz Institute for Tropospheric Research

Particles from gases play an important role in the formation of clouds. Now an additional reaction pathway could be proved and explains why these gases are formed during the daytime under sunlight.


Particles from gases play an important role in the formation of clouds. This process also involves a group of low-volatiles which are formed in the atmosphere by oxidation processes. Now an additional reaction pathway could be proved for the first time by reactions of the hydroxyl radical, which explains why these gases are formed during the daytime under sunlight. This is the result of a joint study by the Leibniz Institute for Tropospheric Research (TROPOS), the University of Helsinki and the University of Copenhagen. The results contribute to a better understanding of day-time-dependent particle formation and subsequent cloud formation in the atmosphere, according to researchers in the journal Nature Communications.

Publication

Torsten Berndt, Stefanie Richters, Tuija Jokinen, Noora Hyttinen, Theo Kurten, Rasmus V. Otkjaer, Henrik G. Kjaergaard, Frank Stratmann, Mikko Sipilä, Markku Kulmala & Mikael Ehn (2016): Hydroxyl radical induced formation of highly oxidized organic compounds. Nat. Commun. 7, 13677 doi: 10.1038/ncomms13677

https://dx.doi.org/10.1038/ncomms13677

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