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| Titel |
The regional aerosol-climate model REMO-HAM |
| VerfasserIn |
J.-P. Pietikäinen, D. O'Donnell, C. Teichmann, U. Karstens, S. Pfeifer, J. Kazil, R. Podzun, S. Fiedler, H. Kokkola, W. Birmili, C. O'Dowd, U. Baltensperger, E. Weingärtner, R. Gehrig, G. Spindler, M. Kulmala  , J. Feichter, D. Jacob, A. Laaksonen |
| 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 ; 5, no. 6 ; Nr. 5, no. 6 (2012-11-01), S.1323-1339 |
| Datensatznummer |
250002944
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| Publikation (Nr.) |
 copernicus.org/gmd-5-1323-2012.pdf |
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| Zusammenfassung |
| REMO-HAM is a new regional aerosol-climate model. It is based on the
REMO regional climate model and includes most of the major aerosol
processes. The structure for aerosol is similar to the global
aerosol-climate model ECHAM5-HAM, for example the aerosol module HAM
is coupled with a two-moment stratiform cloud scheme. On the other
hand, REMO-HAM does not include an online coupled aerosol-radiation
nor a secondary organic aerosol module. In this work, we evaluate
the model and compare the results against ECHAM5-HAM and
measurements. Four different measurement sites were chosen for the
comparison of total number concentrations, size distributions and
gas phase sulfur dioxide concentrations: Hyytiälä in Finland,
Melpitz in Germany, Mace Head in Ireland and Jungfraujoch in
Switzerland. REMO-HAM is run with two different resolutions:
50 × 50 km2 and 10 × 10 km2. Based on our
simulations, REMO-HAM is in reasonable agreement with the measured
values. The differences in the total number concentrations between
REMO-HAM and ECHAM5-HAM can be mainly explained by the difference in
the nucleation mode. Since we did not use activation nor kinetic
nucleation for the boundary layer, the total number concentrations
are somewhat underestimated. From the meteorological point of view,
REMO-HAM represents the precipitation fields and 2 m temperature
profile very well compared to measurement. Overall, we show that
REMO-HAM is a functional aerosol-climate model, which will be used
in further studies. |
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