Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 5.668 IF 5.668
  • IF 5-year value: 6.201 IF 5-year
    6.201
  • CiteScore value: 6.13 CiteScore
    6.13
  • SNIP value: 1.633 SNIP 1.633
  • IPP value: 5.91 IPP 5.91
  • SJR value: 2.938 SJR 2.938
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 174 Scimago H
    index 174
  • h5-index value: 87 h5-index 87
Volume 14, issue 15
Atmos. Chem. Phys., 14, 7929-7940, 2014
https://doi.org/10.5194/acp-14-7929-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Atmospheric impacts of Eastern Asia megacities

Atmos. Chem. Phys., 14, 7929-7940, 2014
https://doi.org/10.5194/acp-14-7929-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 11 Aug 2014

Research article | 11 Aug 2014

An evaluation of ozone dry deposition simulations in East Asia

R. J. Park1, S. K. Hong1, H.-A. Kwon1, S. Kim2, A. Guenther3, J.-H. Woo4, and C. P. Loughner5 R. J. Park et al.
  • 1School of Earth and Environmental Sciences, Seoul National University, Seoul, Korea
  • 2Department of Earth System Science, University of California, Irvine, CA, USA
  • 3Pacific Northwest National Laboratory, Richland, WA, USA
  • 4Department of Environmental Engineering, Konkuk University, Seoul, Korea
  • 5CMNS-Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, USA

Abstract. We use a 3-D regional atmospheric chemistry transport model (WRF-Chem) to examine ozone dry deposition in East Asia, which is an important but uncertain research area because of insufficient observation and numerical studies focusing on East Asia. Here we compare two widely used dry deposition parameterization schemes, the Wesely and M3DRY schemes, which are used in the WRF-Chem and Community Multiscale Air Quality (CMAQ) models, respectively. Simulated ozone dry deposition velocities with the two schemes under identical meteorological conditions show considerable differences (a factor of 2) owing to surface resistance parameterization discrepancies. Resulting ozone concentrations differ by up to 10 ppbv for a monthly mean in May when the peak ozone typically occurs in East Asia. An evaluation of the simulated dry deposition velocities shows that the Wesely scheme calculates values with more pronounced diurnal variation than the M3DRY and results in a good agreement with the observations. However, we find significant changes in simulated ozone concentrations using the Wesely scheme but with different surface type data sets, indicating the high sensitivity of ozone deposition calculations to the input data. The need is high for observations to constrain the dry deposition parameterization and its input data to improve the use of air quality models for East Asia.

Publications Copernicus
Special issue
Download
Citation
Share