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Title: An evaluation of ozone dry deposition simulations in East Asia

Abstract

We used a 3-D regional atmospheric chemistry transport model (WRF-Chem) to examine processes that determine O3 in East Asia; in particular, we focused on O3 dry deposition, which is an uncertain research area due to insufficient observation and numerical studies in East Asia. Here, we compare two widely used dry deposition parameterization schemes, Wesely and M3DRY, which are used in the WRF-Chem and CMAQ models, respectively. The O3 dry deposition velocities simulated using the two aforementioned schemes under identical meteorological conditions show considerable differences (a factor of 2) due to surface resistance parameterization discrepancies. The O3 concentration differed by up to 10 ppbv for the monthly mean. The simulated and observed dry deposition velocities were compared, which showed that the Wesely scheme model is consistent with the observations and successfully reproduces the observed diurnal variation. We conduct several sensitivity simulations by changing the land use data, the surface resistance of the water and the model’s spatial resolution to examine the factors that affect O3 concentrations in East Asia. As shown, the model was considerably sensitive to the input parameters, which indicates a high uncertainty for such O3 dry deposition simulations. Observations are necessary to constrain the dry deposition parameterization andmore » input data to improve the East Asia air quality models.« less

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1170478
Report Number(s):
PNNL-SA-100129
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Atmospheric Chemistry and Physics, 14(15):7929-7940
Additional Journal Information:
Journal Name: Atmospheric Chemistry and Physics, 14(15):7929-7940
Country of Publication:
United States
Language:
English

Citation Formats

Park, R., Hong, Seungkyu K., Kwon, Hyoung-Ahn, Kim, Saewung, Guenther, Alex B., Woo, Jung-Hun, and Loughner, C. P. An evaluation of ozone dry deposition simulations in East Asia. United States: N. p., 2014. Web. doi:10.5194/acp-14-7929-2014.
Park, R., Hong, Seungkyu K., Kwon, Hyoung-Ahn, Kim, Saewung, Guenther, Alex B., Woo, Jung-Hun, & Loughner, C. P. An evaluation of ozone dry deposition simulations in East Asia. United States. https://doi.org/10.5194/acp-14-7929-2014
Park, R., Hong, Seungkyu K., Kwon, Hyoung-Ahn, Kim, Saewung, Guenther, Alex B., Woo, Jung-Hun, and Loughner, C. P. 2014. "An evaluation of ozone dry deposition simulations in East Asia". United States. https://doi.org/10.5194/acp-14-7929-2014.
@article{osti_1170478,
title = {An evaluation of ozone dry deposition simulations in East Asia},
author = {Park, R. and Hong, Seungkyu K. and Kwon, Hyoung-Ahn and Kim, Saewung and Guenther, Alex B. and Woo, Jung-Hun and Loughner, C. P.},
abstractNote = {We used a 3-D regional atmospheric chemistry transport model (WRF-Chem) to examine processes that determine O3 in East Asia; in particular, we focused on O3 dry deposition, which is an uncertain research area due to insufficient observation and numerical studies in East Asia. Here, we compare two widely used dry deposition parameterization schemes, Wesely and M3DRY, which are used in the WRF-Chem and CMAQ models, respectively. The O3 dry deposition velocities simulated using the two aforementioned schemes under identical meteorological conditions show considerable differences (a factor of 2) due to surface resistance parameterization discrepancies. The O3 concentration differed by up to 10 ppbv for the monthly mean. The simulated and observed dry deposition velocities were compared, which showed that the Wesely scheme model is consistent with the observations and successfully reproduces the observed diurnal variation. We conduct several sensitivity simulations by changing the land use data, the surface resistance of the water and the model’s spatial resolution to examine the factors that affect O3 concentrations in East Asia. As shown, the model was considerably sensitive to the input parameters, which indicates a high uncertainty for such O3 dry deposition simulations. Observations are necessary to constrain the dry deposition parameterization and input data to improve the East Asia air quality models.},
doi = {10.5194/acp-14-7929-2014},
url = {https://www.osti.gov/biblio/1170478}, journal = {Atmospheric Chemistry and Physics, 14(15):7929-7940},
number = ,
volume = ,
place = {United States},
year = {Mon Aug 11 00:00:00 EDT 2014},
month = {Mon Aug 11 00:00:00 EDT 2014}
}