WRF-Chem is the Weather Research and Forecasting (WRF) model coupled with Chemistry. The model simulates the emission, transport, mixing, and chemical transformation of trace gases and aerosols simultaneously with the meteorology. The model is used for investigation of regional-scale air quality, field program analysis, and cloud-scale interactions between clouds and chemistry.
The development of WRF-Chem is a collaborative effort among the community. NOAA/ESRL scientists are the leaders and caretakers of the code. The Official WRF-Chem web page is located at the NOAA web site. Our model development is closely linked with both NOAA/ESRL and DOE/PNNL efforts. Description of PNNL WRF-Chem model development is located at the PNNL web site as well as the PNNL Aerosol Modeling Testbed.
Tools for the Community | Preprocessors | |||
MOZART trace gas chemistry with GOCART aerosol scheme | | Users Guide | MEGAN biogenic emissions | |
MOZART trace gas chemistry with MOSAIC aerosol scheme | Users Guide | FINN fire emissions | ||
MOZART-T1 trace gas chemistry with GOCART aerosol scheme (new in V4.0) | Users Guide | Global anthropogenic emissions | ||
New TUV photolysis code (phot_opt = 4) Requires an additional data file: | Interpolate global model output for WRF-Chem initial and boundary conditions | |||
Trajectories monitoring meteorology, chemistry, etc | Instructions | Go to TOOLS page for more information | ||
Output of Integrated Reaction Rates (new in V4.0) | Instructions | |||
Henry's Law Table (new in V4.0) | More Information |
Please see the Best Practices 2015 Tutorial Presentation that includes example namelists for running with MOZCART and MOZART-MOSAIC.
Submit questions regarding the tools and developments from our group to the WRF-Chem Discussion Forum.
For all other requests we refer to the WRF-Chem Helpdesk.
WRF-Chem/DART is being used for: (i) development of efficient satellite retrieval data assimilation methods (compact phase space retrievals); (ii) independent and joint assimilation of atmospheric composition and meteorological observations, and (iii) estimating/constraining emission with the state augmentation methods. WRF-Chem/DART is being applied to two field campaigns, FRAPPE and KORUS-AQ, for atmospheric composition forecasting and data assimilation research. WRF-Chem/DART is also being applied to the MarcoPolo - Panda project for regional air quality forecasting in China.
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