| Evaluation of secondary organic aerosol(SOA) simulations for seoul, korea | |
|---|---|
| 년도 | 2022 |
| 날짜 | Jan |
| 페이지 / 학회지명 |
14, e2021MS00276 / Journal of Advances in Modeling Earth Systems |
| 논문저자 | Yujin J. Oak1, Rokjin J. Park1, Duseong S. Jo2,3,4, Alma Hodzic2, Jose L. Jimenez3,4, Pedro Campuzano-Jost3,4, Benjamin A. Nault5, Hwajin Kim6,7, Hyeonmin Kim1, Eunjo S. Ha1, Chang-Keun Song8, Seung-Muk Yi9,10, Glenn S. Diskin11, Andrew J. Weinheimer2, Do |
| Link |
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2021MS002760
346회 연결
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1 School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea 2 Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA 3 Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, USA 4 Department of Chemistry, University of Colorado, Boulder, CO, USA 5 Center for Aerosols and Cloud Chemistry, Aerodyne Research, Inc., Billerica, MA, USA 6 Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology, Seoul, South Korea 7 Now at Department of Environmental Health, Graduate School of Public Health, Seoul National University, Seoul, South Korea 8 School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan, South Korea 9 Department of Environmental Health, Graduate School of Public Health, Seoul National University, Seoul, South Korea 10 Institute of Health and Environment, Seoul National University, Seoul, South Korea 11 NASA Langley Research Center, Hampton, VA, USA 12 Department of Chemistry, University of California at Irvine, Irvine, CA, USA 13 Department of Chemistry, University of Oslo, Oslo, Norway 14 Institute for Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria 15 Seoul Research Institute of Public Health and Environment, Gwacheon, South Korea Abstract Organic aerosols (OA) represent a significant fraction of total submicron particulate matter (PM1) concentrations globally, including densely populated megacities such as Seoul. However, scientific understanding of the atmospheric formation and removal processes of OA, especially for secondary organic aerosols (SOA), is still highly uncertain. In this study, we examine the characteristics of SOA formation in Seoul during spring-summer 2016 and fall-winter 2017/2018, using airborne and ground observations along with a 3-D global chemical transport model, GEOS-Chem. We use four different SOA schemes in the model, including simplified and complex volatility-based frameworks, and evaluate them by comparing the simulations with the observations to examine how our scientific understanding embedded in each SOA scheme affects the observed biases. Our analysis of the model performance of each scheme also provides the most suitable approach in simulating SOA in a typical urban environment. Comparisons of the simulated versus observed OA concentrations show that model biases range from −72% to +118%, with considerable variability among different schemes and seasons. We find that the inclusion of semi/intermediate volatile precursors, in addition to the traditional precursors, and chemical aging (functionalization) are important factors to simulate surface SOA concentrations in Seoul. However, a comparison of observed and simulated SOA/∆CO enhancement ratios suggests that most schemes underpredict SOA aging in upper levels in the boundary layer. We also find that the simplified SOA scheme can reproduce observed OA but often shows overestimation in surface air, indicating that uncertainties exist in bottom-up emissions and precursor parameterization in Seoul. |
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