GIST (Song)

• Describe the modeling activities of your group (what meteorological, chemical transport and/or radiative transfer models are you using)

In our group, we have carried out the Models-3/CMAQ modeling over East Asia(20N-50N; 100E-160E). For the meteorological preprocessor, we have been using the PSU/NCAR MM5 model with NCEP reanalysis data set. For this, we also conducted data assimilation with observed MET data set like QuckSCat data set. Based on the results, we have estimated aerosol optical properties such as AOD and SSA over the same domain, and then compared with these aerosol properties with satellite-retrieved data (e.g., Terra/MODIS, AQUA/ MODIS, and AURA/OMI) and AERONET data. Then, we did data assimilation with such 4-D aerosol optical data using remote-sensed data. The final aerosol products will be used for a thorough investigation of direct radiative forcing (DRF) by aerosols over East Asia. Right now, we are working on it.

• What emissions inventories are you using.

Basically, INTEX-B emission inventory was used. But, for Korea and Japan, we used the CAPSS and REAS emission inventories. Even further, for the consideration of biogenic VOC emission, we used the MOHYCAN emissions, and for NH3 emissions, we also used the scaled EDGAR emission inventory. We also applied monthly variations for many species, if they are available.

• A list of your publications that are related to the above.

Song, C. H., M. E. Park, K. H. Lee, H. J. Ahn, Y. Lee, J. Y. Kim, K. M. Han, J. Kim, Y. S. Ghim, and Y. J. Kim, An investigation into seasonal and regional aerosol　characteristics in East Asia using model-predicted and remotely-sensed aerosol, Atmos. Chem. & Phys., 8, 6627-6654, 2008.

Han, K. M., C. H. Song, H. J. Ahn, R. S. Park, J. H. Woo, C. K. Lee, A.Richter, J. P. Burrows, J. Y. Kim, and J. H. Hong, Investigation of NOx emissions and NOx-related chemistry in East Asia using CMAQ-predicted and GOME-derived NO2 columns, Atmos. Chem. & Phys., 9, 1017−1036, 2009.

R.S. Park, C.H. Song, K.M. Han, M.E. Park, S.-S. Lee, S.-B. Kim, and A. Shimizu, A study on the aerosol optical properties over East Asia using a combination of CMAQ-simulated aerosol optical properties and remote-sensing data via a data assimilation technique, Atmos. Chem. Phys., 11, 12275-12296, 2011.

Han, K. M. and C. H. Song, A budget analysis of NOx column losses over the Korean peninsula, Asia-Pacific Journal of Atmospheric Science, 2011 (accepted)

• Corresponding authors

1. Chul H. Song

Gwangju Institute of Science and Technology (GIST), Korea

chsong<at>gist.ac.kr