Henry Fuelberg Nick Heath Sean Freeman FSU WRF-Chem During SEAC
4 RS
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What Well Be Running : The Weather Research and Forecasting
model with Chemistry (WRF-Chem) Version 3.4 (Release Date: April
2012) Fully coupled, online, state-of-the-art weather/chemistry
model
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Horizontal Domains: 45 km 15 km (tentatively)
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Vertical Domains: ~70 terrain-following sigma levels Packed in
the boundary layer and near the tropopause Model top of 10 hPa ~1
km TTL
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Met Initial and Boundary Conditions Global Forecast System
(GFS) 0.5x0.5 real- time data 3 hourly time intervals
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Chem Initial and Boundary Conditions MOZART-4 CO is assimilated
with MOPITT CO retrievals Also uses GFS meteorology RACM chemical
mechanism MEGAN biogenics Biomass burning emissions from MODIS
Anthropogenic emissions from RETRO GOCART aerosol
parameterization
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FieldSetting Cumulus SchemeGrell-Devenyi 3D ensemble PBL
SchemeMellor-Yamada-Janic Microphysics5-class w/graupel Shortwave
RadiationGoddard shortwave Longwave RadiationRapid Radiative
Transfer Model
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MET Products: Standard variables at multiple pressure levels
Simulated radar reflectivity Convective fields (convective precip,
etc.) Thermodynamic Diagrams Total 24 h PrecipSim. Radar
Reflectivity
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Simulated Reflectivity
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CHEM Products: CO O 3 NO NO 2 CH 4 SO 2 Surface CO200 hPa
Ozone
Post Mission: Finer horizontal resolution 1-2 km grid spacing
Explicitly resolve convection ICs and BCs from GFS final analyses
Includes observations Better representation of atmosphere