TY - JOUR
T1 - The CHIMERE v2020r1 online chemistry-transport model
AU - Menut, Laurent
AU - Bessagnet, Bertrand
AU - Briant, Régis
AU - Cholakian, Arineh
AU - Couvidat, Florian
AU - Mailler, Sylvain
AU - Pennel, Romain
AU - Siour, Guillaume
AU - Tuccella, Paolo
AU - Turquety, Solène
AU - Valari, Myrto
N1 - Publisher Copyright:
© Copyright:
PY - 2021/11/5
Y1 - 2021/11/5
N2 - The CHIMERE chemistry-transport model v2020r1 replaces the v2017r5 version and provides numerous novelties. The most important of these is the online coupling with the Weather Research and Forecasting (WRF) meteorological model via the OASIS3 - Model Coupling Toolkit (MCT) external coupler. The model can still be used in offline mode; the online mode enables us to take into account the direct and indirect effects of aerosols on meteorology. This coupling also enables using the meteorological parameters with sub-hourly time steps. Some new parameterizations are implemented to increase the model performance and the user's choices: dimethyl sulfide (DMS) emissions, additional schemes for secondary organic aerosol (SOA) formation with volatility basis set (VBS) and H2O, improved schemes for mineral dust, biomass burning, and sea-salt emissions. The NOx emissions from lightning are added. The model also includes the possibility to use the operator-splitting integration technique. The subgrid-scale variability calculation of concentrations due to emission activity sectors is now possible. Finally, a new vertical advection scheme has been implemented, which is able to simulate more correctly long-range transport of thin pollutant plumes.
AB - The CHIMERE chemistry-transport model v2020r1 replaces the v2017r5 version and provides numerous novelties. The most important of these is the online coupling with the Weather Research and Forecasting (WRF) meteorological model via the OASIS3 - Model Coupling Toolkit (MCT) external coupler. The model can still be used in offline mode; the online mode enables us to take into account the direct and indirect effects of aerosols on meteorology. This coupling also enables using the meteorological parameters with sub-hourly time steps. Some new parameterizations are implemented to increase the model performance and the user's choices: dimethyl sulfide (DMS) emissions, additional schemes for secondary organic aerosol (SOA) formation with volatility basis set (VBS) and H2O, improved schemes for mineral dust, biomass burning, and sea-salt emissions. The NOx emissions from lightning are added. The model also includes the possibility to use the operator-splitting integration technique. The subgrid-scale variability calculation of concentrations due to emission activity sectors is now possible. Finally, a new vertical advection scheme has been implemented, which is able to simulate more correctly long-range transport of thin pollutant plumes.
U2 - 10.5194/gmd-14-6781-2021
DO - 10.5194/gmd-14-6781-2021
M3 - Article
AN - SCOPUS:85119338004
SN - 1991-959X
VL - 14
SP - 6781
EP - 6811
JO - Geoscientific Model Development
JF - Geoscientific Model Development
IS - 11
ER -