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| Titel |
Implementation and evaluation of online gas-phase chemistry within a regional climate model (RegCM-CHEM4) |
| VerfasserIn |
A. Shalaby, A. S. Zakey, A. B. Tawfik, F. Solmon, F. Giorgi, F. Stordal, S. Sillman, R. A. Zaveri, A. L. Steiner |
| 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. 3 ; Nr. 5, no. 3 (2012-05-22), S.741-760 |
| Datensatznummer |
250002614
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| Publikation (Nr.) |
 copernicus.org/gmd-5-741-2012.pdf |
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| Zusammenfassung |
| The RegCM-CHEM4 is a new online climate-chemistry model based on the
International Centre for Theoretical Physics (ICTP) regional climate model
(RegCM4). Tropospheric gas-phase chemistry is integrated into the climate
model using the condensed version of the Carbon Bond Mechanism (CBM-Z;
Zaveri and Peters, 1999) with a fast solver based on radical balances. We
evaluate the model over continental Europe for two different time scales:
(1) an event-based analysis of the ozone episode associated with the heat
wave of August 2003 and (2) a climatological analysis of a six-year
simulation (2000–2005). For the episode analysis, model simulations show
good agreement with European Monitoring and Evaluation Programme (EMEP)
observations of hourly ozone over different regions in Europe and capture
ozone concentrations during and after the summer 2003 heat wave event. For
long-term climate simulations, the model captures the seasonal cycle of
ozone concentrations with some over prediction of ozone concentrations in
non-heat wave summers. Overall, the ozone and ozone precursor evaluation
shows the feasibility of using RegCM-CHEM4 for decadal-length simulations of
chemistry-climate interactions. |
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