Gaseous chemistry and aerosol mechanism developments for version 3.5.1 of the online regional model, WRF-Chem

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 for...

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Main Authors: S. Archer-Nicholls, D. Lowe, S. Utembe, J. Allan, R. A. Zaveri, J. D. Fast, Ø. Hodnebrog, H. Denier van der Gon, G. McFiggans
Format: Article
Language:English
Published: Copernicus Publications 2014-11-01
Series:Geoscientific Model Development
Online Access:http://www.geosci-model-dev.net/7/2557/2014/gmd-7-2557-2014.pdf
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author S. Archer-Nicholls
D. Lowe
S. Utembe
J. Allan
R. A. Zaveri
J. D. Fast
Ø. Hodnebrog
H. Denier van der Gon
G. McFiggans
author_facet S. Archer-Nicholls
D. Lowe
S. Utembe
J. Allan
R. A. Zaveri
J. D. Fast
Ø. Hodnebrog
H. Denier van der Gon
G. McFiggans
author_sort S. Archer-Nicholls
collection DOAJ
description 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. N<sub>2</sub>O<sub>5</sub> 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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spelling doaj.art-f5159f4f59fc43fa9579c9b3ed37c0052022-12-22T00:09:55ZengCopernicus PublicationsGeoscientific Model Development1991-959X1991-96032014-11-01762557257910.5194/gmd-7-2557-2014Gaseous chemistry and aerosol mechanism developments for version 3.5.1 of the online regional model, WRF-ChemS. Archer-Nicholls0D. Lowe1S. Utembe2J. Allan3R. A. Zaveri4J. D. Fast5Ø. Hodnebrog6H. Denier van der Gon7G. McFiggans8Centre for Atmospheric Sciences, School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Manchester, UKCentre for Atmospheric Sciences, School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Manchester, UKSchool of Earth Sciences, University of Melbourne, Victoria, AustraliaCentre for Atmospheric Sciences, School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Manchester, UKAtmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, Washington, USAAtmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, Washington, USADepartment of Geosciences, University of Oslo, NorwayDepartment of Climate, Air, and Sustainability, TNO, Utrecht, the NetherlandsCentre for Atmospheric Sciences, School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Manchester, UKWe 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. N<sub>2</sub>O<sub>5</sub> 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.http://www.geosci-model-dev.net/7/2557/2014/gmd-7-2557-2014.pdf
spellingShingle S. Archer-Nicholls
D. Lowe
S. Utembe
J. Allan
R. A. Zaveri
J. D. Fast
Ø. Hodnebrog
H. Denier van der Gon
G. McFiggans
Gaseous chemistry and aerosol mechanism developments for version 3.5.1 of the online regional model, WRF-Chem
Geoscientific Model Development
title Gaseous chemistry and aerosol mechanism developments for version 3.5.1 of the online regional model, WRF-Chem
title_full Gaseous chemistry and aerosol mechanism developments for version 3.5.1 of the online regional model, WRF-Chem
title_fullStr Gaseous chemistry and aerosol mechanism developments for version 3.5.1 of the online regional model, WRF-Chem
title_full_unstemmed Gaseous chemistry and aerosol mechanism developments for version 3.5.1 of the online regional model, WRF-Chem
title_short Gaseous chemistry and aerosol mechanism developments for version 3.5.1 of the online regional model, WRF-Chem
title_sort gaseous chemistry and aerosol mechanism developments for version 3 5 1 of the online regional model wrf chem
url http://www.geosci-model-dev.net/7/2557/2014/gmd-7-2557-2014.pdf
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