Grell, Georg, National Oceanic and Atmospheric
Administration/ESRL, S.A. McKeen, S. E.
Peckham, R. Ahmadov, NOAA/ESRL, Jan Kazil, NOAA/ESRL/CSD, J. D. Fast PNNL, M.
Barth, G. Pfister, S. Wolter, NCAR, J. Wong, University of Colorado, S.
Freitas, CPTEC, Brazil, P. Webley, M. Stuefer, University of Alaska, G. A.
Creighton, S. L. Jones, AFWA
We
will describe recent updates to the Weather Research and Forecasting (WRF)
model as it is coupled with chemistry. WRF-Chem V3.4 includes many new
additional features such as new aqueous phase chemistry options, new chemistry
packages, and another SOA package. New links to meteorological physics
parameterizations have also been added to expand capabilities to simulate the
aerosol direct and indirect effects. Other new features include the addition of
SO2 emissions from volcanoes. In addition to transport and deposition of
volcanic ash and/or dust in separate dispersion options, volcanic ash was also
coupled to other aerosol modules. An overview of the current status of this
modeling system and ongoing as well as future development will be discussed. In
addition some evaluation results will be presented.