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| Titel |
Modelling multi-phase halogen chemistry in the remote marine boundary layer: investigation of the influence of aerosol size resolution on predicted gas- and condensed-phase chemistry |
| VerfasserIn |
D. Lowe, D. Topping, G. McFiggans |
| 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 ; 9, no. 14 ; Nr. 9, no. 14 (2009-07-15), S.4559-4573 |
| Datensatznummer |
250007502
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| Publikation (Nr.) |
 copernicus.org/acp-9-4559-2009.pdf |
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| Zusammenfassung |
| A coupled box model of photochemistry and aerosol microphysics which explicitly
accounts for size-dependent chemical properties of the condensed-phase has been
developed to simulate the multi-phase chemistry of chlorine, bromine and iodine in
the marine boundary layer (MBL). The model contains separate seasalt and
non-seasalt modes, each of which may be composed of 1–16 size-bins. By
comparison of gaseous and aerosol compositions predicted using different
size-resolutions with both fixed and size-dependent aerosol turnover rates, it
was found that, for halogen-activation processes, the physical property
initialisation of the aerosol-mode has a significant influence on gas-phase
chemistry. Failure to adequately represent the appropriate physical properties
can lead to substantial errors in gas-phase chemistry. The size-resolution of
condensed-phase composition has a less significant influence on gas-phase chemistry. |
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