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| Titel |
Development of an online radiative module for the computation of aerosol optical properties in 3-D atmospheric models: validation during the EUCAARI campaign |
| VerfasserIn |
B. Aouizerats, O. Thouron, P. Tulet, M. Mallet, L. Gomes, J. S. Henzing |
| 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 ; 3, no. 2 ; Nr. 3, no. 2 (2010-10-25), S.553-564 |
| Datensatznummer |
250000955
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| Publikation (Nr.) |
 copernicus.org/gmd-3-553-2010.pdf |
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| Zusammenfassung |
Obtaining a good description of aerosol optical properties for
a physically and chemically complex evolving aerosol is
computationally very expensive at present. The goal of this work is
to propose a new numerical module computing the optical properties for
complex aerosol particles at low numerical cost so that it can be
implemented in atmospheric models. This method aims to compute the
optical properties online as a function of a given complex refractive
index deduced from the aerosol chemical composition and the size
parameters corresponding to the particles.
The construction of look-up tables from the imaginary and the real
part of the complex refractive index and size parameters will also be
explained. This approach is validated for observations acquired
during the EUCAARI (European integrated project on aerosol cloud
climate air quality interactions) campaign on the Cabauw tower during May 2008 and
its computing cost is also estimated.
These comparisons show that the module manages to reproduce the
scattering and absorbing behaviour of the aerosol during most of the
fifteen-day period of observation with a very cheap computationally
cost. |
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