Black carbon emissions from China based on atmospheric observations and a chemistry transport model
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We estimated black carbon (BC) emissions from China using ground-based observations in remote regions of Japan and a chemical transport model. Tagged tracer simulations were performed with the GEOS-Chem chemical transport model. We selected data during which the influence of wet deposition during transport was minimal. We estimated the annual BC emissions from China by multiplying the emissions from the input bottom-up inventory by the observation-to-model ratios for mean BC concentrations after the selection.
Description
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Creator
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Release date
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2026/03/31
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Temporal coverage
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2009/01/01 - 2024/01/01
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Data provider
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NIES
Email: cgerdb_admin(at)nies.go.jp |
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DOI
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File format
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CSV
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Data volume
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496 B
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Version
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ver. 2026.1 (Last updated: 2026/03/31)
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Language
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English
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Data Set
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Parameters
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Black caron emissions from China
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Domain
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Regional
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Time resolution
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1[year]
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Spatial resolution
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China
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Calculation method
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GEOS-Chem is a chemical transport model driven by reanalysis meteorological data (MERRA-2). Here we used the nested-grid GEOS-Chem model version 13.1.2 with a horizontal resolution of 0.5° × 0.625° covering East Asia (70–150°E, 15–55°N). Tagged tracer simulations were utilized to distinguish source regions and types (i.e., anthropogenic and biomass burning) of BC concentrations. In this study, we divided anthropogenic BC sources in East Asia into four regions: Japan, the Korean Peninsula, North China (NCH), and South China (SCH).
To estimate BC emissions from China, we made the following two steps of data selection for the hourly BC concentrations at each observational site. First, we selected the periods when the relative contribution of total BC emitted from NCH and SCH to the overall BC concentration exceeded 80%. Second, we identified data with a transport efficiency of BC from China exceeding 80%. The transport efficiency value was calculated from BC concentration ratios of the control run and the sensitivity experiment with the wet removal processed turned off. We estimated the annual BC emissions from China by multiplying the emissions from the input bottom-up inventory (HTAPv3) by the observation-to-model ratios for mean BC concentrations after the selection. |
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Keywords
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[Free keywords]
black carbon, emission, China, Short-Lived Climate Forcers, SLCF, aerosol, chemistry transport model
[GCMD_Platform]Other > Models > GEOS > GEOS-Chem
[GCMD_Science]ATMOSPHERE > AEROSOLS > BLACK CARBON
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Update history
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[2026/03/31]
Version 2026.1 was released (ver.2026.1)
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Contributors
Acknowledgements
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Acknowledgements
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This study was supported by the Environment Research and Technology Development Fund of the ERCA (JPMEERF20252001) funded by the Ministry of the Environment.
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Reference Information
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References
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Tanimoto, H., Y. Kanaya, K. Ikeda, T. Morikawa, T. Sekiya, P. T. M. Ha, and K. Yamaji, East Asian Black Carbon Emission Report 2024, 22pp., 2025., doi:10.34462/0002000234.
Ikeda, K., Tanimoto, H., Kanaya, Y., and Taketani, F., Evaluation of anthropogenic emissions of black carbon from East Asia in six inventories: constraints from model simulations and surface observations on Fukue Island, Japan, Environmental Science: Atmospheres, 2, 416-427, 2022, doi:10.1039/D1EA00051A.
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Fund Information
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Funding Agency
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Environmental Restoration and Conservation Agency, the Ministry of Environment
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Grant No.
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JPMEERF20252001
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Terms and Conditions of Use*
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License
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Citation format
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When this data set is referred to in publications, it should be cited in the following format.
Ikeda et al. (2026), Black carbon emissions from China based on atmospheric observations and a chemistry transport model, ver.2026.1*1 , NIES, DOI:10.17595/20260331.001. (Reference date*2: YYYY/MM/DD)
*1 The version number is indicated in the Description. *2 As the reference date, please indicate the date you downloaded the files. |