Implementation and evaluation of online gas-phase chemistry within a regional climate model (RegCM-CHEM4)
| Autor: | A. Shalaby, Filippo Giorgi, Fabien Solmon, Frode Stordal, Sanford Sillman, Allison L. Steiner, Rahul A. Zaveri, A. S. Zakey, Ahmed B. Tawfik |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Ozone
010504 meteorology & atmospheric sciences lcsh:QE1-996.5 Heat wave 010501 environmental sciences Atmospheric sciences 7. Clean energy 01 natural sciences Gas phase Troposphere lcsh:Geology chemistry.chemical_compound chemistry 13. Climate action Climatology Environmental science Climate model Seasonal cycle 0105 earth and related environmental sciences |
| Zdroj: | Geoscientific Model Development, Vol 5, Iss 3, Pp 741-760 (2012) |
| ISSN: | 1991-9603 |
| Popis: | 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 Program (EMEP) observations of hourly ozone over different regions in Europe and capture ozone concentrations during and after the August 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. |
| Databáze: | OpenAIRE |
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