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| Titel |
MADE-in: a new aerosol microphysics submodel for global simulation of insoluble particles and their mixing state |
| VerfasserIn |
V. Aquila, J. Hendricks, A. Lauer, N. Riemer, H. Vogel, D. Baumgardner, A. Minikin, A. Petzold, J. P. Schwarz, J. R. Spackman, B. Weinzierl, M. Righi, M. Dall'Amico |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1991-959X
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| Digitales Dokument |
URL |
| Erschienen |
In: Geoscientific Model Development ; 4, no. 2 ; Nr. 4, no. 2 (2011-04-21), S.325-355 |
| Datensatznummer |
250001657
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| Publikation (Nr.) |
 copernicus.org/gmd-4-325-2011.pdf |
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| Zusammenfassung |
Black carbon (BC) and mineral dust are among the most abundant insoluble
aerosol components in the atmosphere. When released, most BC and dust
particles are externally mixed with other aerosol species. Through
coagulation with particles containing soluble material and condensation of
gases, the externally mixed particles may obtain a liquid coating and be
transferred into an internal mixture. The mixing state of BC and dust aerosol
particles influences their radiative and hygroscopic properties, as well as
their ability of forming ice crystals.
We introduce the new aerosol microphysics submodel MADE-in, implemented
within the ECHAM/MESSy Atmospheric Chemistry global model (EMAC). MADE-in is
able to track mass and number concentrations of BC and dust particles in
their different mixing states, as well as particles free of BC and dust.
MADE-in describes these three classes of particles through a superposition of
seven log-normally distributed modes, and predicts the evolution of their
size distribution and chemical composition. Six out of the seven modes are
mutually interacting, allowing for the transfer of mass and number
among them.
Separate modes for the different mixing states of BC and dust particles in
EMAC/MADE-in allow for explicit simulations of the relevant aging processes,
i.e. condensation, coagulation and cloud processing. EMAC/MADE-in has been
evaluated with surface and airborne measurements and mostly performs well
both in the planetary boundary layer and in the upper troposphere and
lowermost stratosphere. |
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