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| Titel |
Halogen activation via interactions with environmental ice and snow in the polar lower troposphere and other regions |
| VerfasserIn |
J. P. D. Abbatt, J. L. Thomas, K. Abrahamsson, C. Boxe, A. Granfors, A. E. Jones, M. D. King, A. Saiz-Lopez, P. B. Shepson, J. Sodeau, D. W. Toohey, C. Toubin, R. Glasow, S. N. Wren, X. Yang |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 12, no. 14 ; Nr. 12, no. 14 (2012-07-19), S.6237-6271 |
| Datensatznummer |
250011325
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| Publikation (Nr.) |
 copernicus.org/acp-12-6237-2012.pdf |
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| Zusammenfassung |
| The role of ice in the formation of chemically active halogens in the
environment requires a full understanding because of its role in atmospheric
chemistry, including controlling the regional atmospheric oxidizing capacity
in specific situations. In particular, ice and snow are important for
facilitating multiphase oxidative chemistry and as media upon which marine
algae live. This paper reviews the nature of environmental ice substrates
that participate in halogen chemistry, describes the reactions that occur on
such substrates, presents the field evidence for ice-mediated halogen
activation, summarizes our best understanding of ice-halogen activation
mechanisms, and describes the current state of modeling these processes at
different scales. Given the rapid pace of developments in the field, this
paper largely addresses advances made in the past five years, with emphasis
given to the polar boundary layer. The integrative nature of this field is
highlighted in the presentation of work from the molecular to the regional
scale, with a focus on understanding fundamental processes. This is essential
for developing realistic parameterizations and descriptions of these
processes for inclusion in larger scale models that are used to determine
their regional and global impacts. |
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