HR: 16:15h
AN: A34A-02 [Abstracts]
TI: Evaluation of WRF/Chem-MADRID with Satellite and Surface Measurements: Chemical and Optical Properties
of Aerosols
AU: * Zhang, Y
EM: yzhang9@ncsu.edu
AF: North Carolina State University, Campus Box 8208, 2800 Faucette Drive, Raleigh, NC 27695-8208
United States
AU: Hu, X
EM: xhu@ncsu.edu
AF: North Carolina State University, Campus Box 8208, 2800 Faucette Drive, Raleigh, NC 27695-8208
United States
AU: Wang, K
EM: kwang@ncsu.edu
AF: North Carolina State University, Campus Box 8208, 2800 Faucette Drive, Raleigh, NC 27695-8208
United States
AU: Huang, J
EM: jphuang@ncsu.edu
AF: North Carolina State University, Campus Box 8208, 2800 Faucette Drive, Raleigh, NC 27695-8208
United States
AU: Fast, J D
EM: Jerome.Fast@pnl.gov
AF: Pacific Northwest National Laboratory, ETB, P.O. Box 999,
902 Battelle Blvd, Richland, WA 99352
United States
AU: Gustafson, W I
EM: william.gustafson@pnl.gov
AF: Pacific Northwest National Laboratory, ETB, P.O. Box 999,
902 Battelle Blvd, Richland, WA 99352
United States
AU: Chu, D A
EM: achu@climate.gsfc.nasa.gov
AF: NASA Goddard Space Flight Center, MODIS Aerosol Team/code 613.2,
Buliding 33, Room A306, Greenbelt, MD 20771
United States
AU: Jang, C J
EM: jang.carey@epa.gov
AF: USEPA/Office of Air Quality Planning & Standards, MC: D243-01, 109 T.W. Alexander drive, RTP, NC
27711
United States
AB:
Evaluation of air quality models (AQMs) in both retrospective and forecasting modes is critical to the further development
and improvement of AQMs. The Model of Aerosol Dynamics, Reaction, Ionization and Dissolution (MADRID), has been incorporated
into the Pacific Northwest National Laboratory (PNNL) version of the NOAA WRF Air Quality prediction system. MADRID is
based on a sectional representation of the particle size distribution and includes a detailed treatment of aerosol dynamics
and secondary organic aerosol (SOA) formation for hydrophobic and hydrophilic organic compounds. The resulting 3-D coupled
meteorology-chemistry model, referred to as WRF/Chem-MADRID, will be applied for both research-grade studies and operational
forecasting of O3 and PM2.5. As an initial step, WRF/Chem-MADRID has been applied retrospectively to a 5-day episode (August
28 to September 2) from 2000 Texas Air Quality Study (TexAQS-2000) in the southern U.S. to evaluate its performance and to
study the interactions between air quality and regional climate. The simulated concentrations of gas and aerosol species
(e.g., O3, SO2, NOx, and PM2.5) and aerosol optical properties (e.g., aerosol optical depth, single scattering albedo,
aerosol direct radiative) are being compared against available observational data from TexAQS-2000, AERONET, and MODIS.
Discrepancies between the simulation results and observations and likely causes will be analyzed along with recommendations
for model improvement. The potential impact of aerosols on regional climate through their feedback to radiation and
boundary layer meteorology will also be discussed.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0550 Model verification and validation
DE: 3238 Prediction (3245, 4263)
DE: 3355 Regional modeling
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005