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| Titel |
Gaseous chemistry and aerosol mechanism developments for version 3.5.1 of the online regional model, WRF-Chem |
| VerfasserIn |
S. Archer-Nicholls, D. Lowe, S. Utembe, J. Allan, R. A. Zaveri, J. D. Fast, Ø. Hodnebrog, H. Denier van der Gon, G. McFiggans |
| 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 ; 7, no. 6 ; Nr. 7, no. 6 (2014-11-08), S.2557-2579 |
| Datensatznummer |
250115771
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| Publikation (Nr.) |
 copernicus.org/gmd-7-2557-2014.pdf |
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| Zusammenfassung |
| We have made a number of developments to the Weather, Research and Forecasting model coupled with
Chemistry (WRF-Chem), with the aim of improving model prediction of trace atmospheric
gas-phase chemical and aerosol composition, and of interactions between air quality and weather.
A reduced form of the Common Reactive
Intermediates gas-phase chemical mechanism (CRIv2-R5) has been added, using the Kinetic
Pre-Processor (KPP) interface, to enable more explicit simulation of VOC
degradation. N2O5 heterogeneous chemistry has been added to the existing sectional MOSAIC
aerosol module, and coupled to both the CRIv2-R5 and existing CBM-Z gas-phase
schemes. Modifications have also been made to the sea-spray aerosol emission representation,
allowing the inclusion of primary organic material in sea-spray aerosol.
We have worked on the European
domain, with a particular focus on making the model suitable for the study of nighttime chemistry
and oxidation by the nitrate radical in the UK atmosphere. Driven by appropriate
emissions, wind fields and chemical boundary conditions, implementation of the different
developments are illustrated, using a modified version of WRF-Chem 3.4.1, in order to demonstrate
the impact that these changes have in the Northwest European domain. These developments are
publicly available in WRF-Chem from version 3.5.1 onwards. |
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