This title appears in the Scientific Report :
2014
Please use the identifier:
http://hdl.handle.net/2128/8166 in citations.
Please use the identifier: http://dx.doi.org/10.5194/gmdd-7-7733-2014 in citations.
Tropospheric chemistry in the integrated forecasting system of ECMWF
Tropospheric chemistry in the integrated forecasting system of ECMWF
A representation of atmospheric chemistry has been included in the Integrated Forecasting System (IFS) of the European Centre for Medium-range Weather Forecasts (ECMWF). The new chemistry modules complement the aerosol modules of the IFS for atmospheric composition, which is named C-IFS. C-IFS for c...
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Personal Name(s): | Flemming, J. (Corresponding Author) |
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Huijnen, V. / Arteta, J. / Bechtold, P. / Beljaars, A. / Blechschmidt, A.-M. / Josse, B. / Diamantakis, M. / Engelen, R. J. / Gaudel, A. / Inness, A. / Jones, L. / Katragkou, E. / Marecal, V. / Peuch, V.-H. / Richter, A. / Schultz, Martin / Stein, O. / Tsikerdekis, A. | |
Contributing Institute: |
Jülich Supercomputing Center; JSC Troposphäre; IEK-8 |
Published in: | Geoscientific model development discussions, 7 (2014) 6, S. 7733 - 7803 |
Imprint: |
Katlenburg-Lindau
Copernicus
2014
|
DOI: |
10.5194/gmdd-7-7733-2014 |
Document Type: |
Journal Article |
Research Program: |
Trace gas and aerosol processes in the troposphere |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.5194/gmdd-7-7733-2014 in citations.
A representation of atmospheric chemistry has been included in the Integrated Forecasting System (IFS) of the European Centre for Medium-range Weather Forecasts (ECMWF). The new chemistry modules complement the aerosol modules of the IFS for atmospheric composition, which is named C-IFS. C-IFS for chemistry supersedes a coupled system, in which the Chemical Transport Model (CTM) Model for OZone and Related chemical Tracers 3 was two-way coupled to the IFS (IFS-MOZART). This paper contains a description of the new on-line implementation, an evaluation with observations and a comparison of the performance of C-IFS with MOZART and with a re-analysis of atmospheric composition produced by IFS-MOZART within the Monitoring Atmospheric Composition and Climate (MACC) project. The chemical mechanism of C-IFS is an extended version of the Carbon Bond 2005 (CB05) chemical mechanism as implemented in the CTM Transport Model 5 (TM5). CB05 describes tropospheric chemistry with 54 species and 126 reactions. Wet deposition and lightning nitrogen monoxide (NO) emissions are modelled in C-IFS using the detailed input of the IFS physics package. A one-year simulation by C-IFS, MOZART and the MACC re-analysis is evaluated against ozonesondes, carbon monoxide (CO) aircraft profiles, European surface observations of ozone (O3), CO, sulphur dioxide (SO2) and nitrogen dioxide (NO2) as well as satellite retrievals of CO, tropospheric NO2 and formaldehyde. Anthropogenic emissions from the MACC/CityZen (MACCity) inventory and biomass burning emissions from the Global Fire Assimilation System (GFAS) data set were used in the simulations by both C-IFS and MOZART. C-IFS (CB05) showed an improved performance with respect to MOZART for CO, upper tropospheric O3, winter time SO2 and was of a similar accuracy for other evaluated species. C-IFS (CB05) is about ten times more computationally efficient than IFS-MOZART. |