Implementation and evaluation of online gas-phase chemistry within a regional climate model (RegCM-CHEM4)

被引：57
作者：
Shalaby, A. [2 ,3 ]
Zakey, A. S. [2 ,3 ,4 ]
Tawfik, A. B. [1 ]
Solmon, F. [2 ]
Giorgi, F. [2 ]
Stordal, F. [5 ]
Sillman, S. [1 ]
Zaveri, R. A. [6 ]
Steiner, A. L. [1 ]
机构：
[1] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA
[2] Abdus Salaam Int Ctr Theoret Phys, Earth Syst Phys Grp, Trieste, Italy
[3] EMA, Cairo, Egypt
[4] DMI, Copenhagen, Denmark
[5] Univ Oslo, Dept Geosci, N-0316 Oslo, Norway
[6] Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA
来源：
GEOSCIENTIFIC MODEL DEVELOPMENT | 2012年 / 5卷 / 03期
关键词：
2003; HEAT-WAVE; AIR-POLLUTION; SURFACE OZONE; PHOTOCHEMICAL MODEL; TROPOSPHERIC OZONE; UNITED-STATES; EUROPE; SIMULATIONS; SENSITIVITY; IMPACT;
D O I：
10.5194/gmd-5-741-2012
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
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.
引用
收藏
页码：741 / 760
页数：20
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