Atmos. Chem. Phys. Discuss., 13, 32649-32701, 2013
www.atmos-chem-phys-discuss.net/13/32649/2013/
doi:10.5194/acpd-13-32649-2013
© Author(s) 2013. This work is distributed
under the Creative Commons Attribution 3.0 License.
Review Status
This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
Mapping Asian anthropogenic emissions of non-methane volatile organic compounds to multiple chemical mechanisms
M. Li1,2, Q. Zhang1, D. G. Streets3, K. B. He2, Y. F. Cheng4, L. K. Emmons5, H. Huo6, S. C. Kang2, Z. Lu3, M. Shao7, H. Su4, X. Yu8, and Y. Zhang9
1Ministry of Education Key Laboratory for Earth System Modeling, Center for Earth System Science, Tsinghua University, Beijing, China
2State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China
3Decision and Information Sciences Division, Argonne National Laboratory, Argonne, IL, USA
4Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
5Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, CO, USA
6Institute of Energy, Environment and Economy, Tsinghua University, Beijing, China
7State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China
8Beijing Green Resource Research Co. Ltd., Beijing, China
9Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina, USA

Abstract. An accurate speciation mapping of non-methane volatile organic compounds (NMVOC) emissions has an important impact on the performance of chemical transport models (CTMs) in simulating ozone mixing ratios and secondary organic aerosols. In this work, we developed an improved speciation framework to generate model-ready anthropogenic Asian NMVOC emissions for various gas-phase chemical mechanisms commonly used in CTMs by using an explicit assignment approach and updated NMVOC profiles, based on the total NMVOC emissions in the INTEX-B Asian inventory for the year 2006. NMVOC profiles were selected and aggregated from a wide range of new measurements and the SPECIATE database. To reduce potential uncertainty from individual measurements, composite profiles were developed by grouping and averaging source profiles from the same category. The fractions of oxygenated volatile organic compounds (OVOC) were corrected during the compositing process for those profiles which used improper sampling and analyzing methods. Emissions of individual species were then lumped into species in different chemical mechanisms used in CTMs by applying mechanism-dependent species mapping tables, which overcomes the weakness of inaccurate mapping in previous studies. Gridded emissions for eight chemical mechanisms are developed at 30 min × 30 min resolution using various spatial proxies and are provided through the website: http://mic.greenresource.cn/intex-b2006. Emission estimates for individual NMVOC species differ between one and three orders of magnitude for some species when different sets of profiles are used, indicating that source profile is the most important source of uncertainties of individual species emissions. However, those differences are diminished in lumped species as a result of the lumping in the chemical mechanisms.

Citation: Li, M., Zhang, Q., Streets, D. G., He, K. B., Cheng, Y. F., Emmons, L. K., Huo, H., Kang, S. C., Lu, Z., Shao, M., Su, H., Yu, X., and Zhang, Y.: Mapping Asian anthropogenic emissions of non-methane volatile organic compounds to multiple chemical mechanisms, Atmos. Chem. Phys. Discuss., 13, 32649-32701, doi:10.5194/acpd-13-32649-2013, 2013.
 
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