TY - JOUR
T1 - Gaseous chemistry and aerosol mechanism developments for version 3.5.1 of the online regional model, WRF-Chem
AU - Archer-Nicholls, Scott
AU - Lowe, Douglas
AU - Utembe, S
AU - Allan, J
AU - Zaveri, R A
AU - Fast, J D
AU - Hodnebrog, O
AU - van der Gon, H D
AU - Mcfiggans, Gordon
N1 - The developments are available in the widely used and publically distributed WRF-Chem model environment. We have stated this as: "The developments have been released in version 3.5.1 of WRF-Chem (available for download from http://www.mmm.ucar.edu/wrf/users/)" and "These developments are publicly available in WRF- Chem from version 3.5.1 onwards" and "The majority of the developments detailed in this paper have been included in WRF-Chem version 3.5.1" Ancillary model files (kpp files etc., are available as supplementary material) as stated: "Details of these changes, as well as replacement KPP equation and definition files for WRF-Chem 3.5.1, are in- cluded in the supplementary material." and "Supplementary material related to this article is available online at http://www.geosci-model-dev-discuss.net/7/871/2014/ gmdd-7-871-2014-supplement.zip."
PY - 2014/1/14
Y1 - 2014/1/14
N2 - We have made a number of developments to the Weather, Research and Forecasting model coupled with Chemistry (WRF-Chem), with the aim of making the model more suitable for prediction of atmospheric composition and of interactions between air quality and weather. 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. 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. 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 North-West European domain. These developments are publicly available in WRF-Chem from version 3.5.1 onwards.
AB - We have made a number of developments to the Weather, Research and Forecasting model coupled with Chemistry (WRF-Chem), with the aim of making the model more suitable for prediction of atmospheric composition and of interactions between air quality and weather. 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. 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. 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 North-West European domain. These developments are publicly available in WRF-Chem from version 3.5.1 onwards.
KW - volatile organic-compounds
KW - intermediates cri mechanism
KW - primary marine aerosol
KW - mcm v3 part
KW - air-quality
KW - atmospheric chemistry
KW - sea-salt
KW - tropospheric degradation
KW - boundary-layer
KW - united-states
U2 - 10.5194/gmd-7-2557-2014
DO - 10.5194/gmd-7-2557-2014
M3 - Article
SN - 1991-9611
VL - 7
SP - 2557
EP - 2579
JO - Geoscientific Model Development Discussions
JF - Geoscientific Model Development Discussions
IS - 6
ER -