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ACP - recent papers

Combined list of the recent articles of the journal Atmospheric Chemistry and Physics and the recent discussion forum Atmospheric Chemistry and Physics Discussions
  • Finite domains cause bias in measured and modeled distributions of cloud sizes
    Finite domains cause bias in measured and modeled distributions of cloud sizes Thomas D. DeWitt and Timothy J. Garrett Atmos. Chem. Phys., 24, 8457–8472, https://doi.org10.5194/acp-24-8457-2024, 2024 There is considerable disagreement on mathematical parameters that describe the number of clouds of different sizes as well as the size of the largest clouds. Both are key defining characteristics of Earth's atmosphere. A previous study provided an incorrect explanation for the disagreement. Instead, the disagreement may be explained by prior studies not properly accounting for the size of their measurement domain. We offer recommendations for how the domain size can be accounted for.

  • Large contributions of soil emissions to the atmospheric nitrogen budget and their impacts on air quality and temperature rise in North China
    Large contributions of soil emissions to the atmospheric nitrogen budget and their impacts on air quality and temperature rise in North China Tong Sha, Siyu Yang, Qingcai Chen, Liangqing Li, Xiaoyan Ma, Yan-Lin Zhang, Zhaozhong Feng, K. Folkert Boersma, and Jun Wang Atmos. Chem. Phys., 24, 8441–8455, https://doi.org10.5194/acp-24-8441-2024, 2024 Using an updated soil reactive nitrogen emission scheme in the Unified Inputs for Weather Research and Forecasting coupled with Chemistry (UI-WRF-Chem) model, we investigate the role of soil NO and HONO (Nr) emissions in air quality and temperature in North China. Contributions of soil Nr emissions to O3 and secondary pollutants are revealed, exceeding effects of soil NOx or HONO emission. Soil Nr emissions play an important role in mitigating O3 pollution and addressing climate change.

  • Critical contribution of chemically diverse carbonyl molecules to the oxidative potential of atmospheric aerosols
    Critical contribution of chemically diverse carbonyl molecules to the oxidative potential of atmospheric aerosols Feifei Li, Shanshan Tang, Jitao Lv, Shiyang Yu, Xu Sun, Dong Cao, Yawei Wang, and Guibin Jiang Atmos. Chem. Phys., 24, 8397–8411, https://doi.org10.5194/acp-24-8397-2024, 2024 Targeted derivatization and non-targeted analysis with Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) were used to reveal the molecular composition of carbonyl molecules in PM2.5, and the important role of carbonyls in increasing the oxidative potential of organic aerosol was found in real samples.

  • Interannual variations in Siberian carbon uptake and carbon release period
    Interannual variations in Siberian carbon uptake and carbon release period Dieu Anh Tran, Christoph Gerbig, Christian Rödenbeck, and Sönke Zaehle Atmos. Chem. Phys., 24, 8413–8440, https://doi.org10.5194/acp-24-8413-2024, 2024 The analysis of the atmospheric CO2 record from the Zotino Tall Tower Observatory (ZOTTO) in central Siberia shows significant increases in the length and amplitude of the CO2 uptake and release in the 2010–2021 period. The trend shows a stronger increase in carbon release amplitude compared to the uptake, suggesting that, despite enhanced growing season uptake, during this period climate warming did not elevate the annual net CO2 uptake as cold-season respirations also responded to the warming.

  • Source-resolved atmospheric metal emissions, concentrations, and deposition fluxes into the East Asian seas
    Source-resolved atmospheric metal emissions, concentrations, and deposition fluxes into the East Asian seas Shenglan Jiang, Yan Zhang, Guangyuan Yu, Zimin Han, Junri Zhao, Tianle Zhang, and Mei Zheng Atmos. Chem. Phys., 24, 8363–8381, https://doi.org10.5194/acp-24-8363-2024, 2024 This study aims to provide gridded data on sea-wide concentrations, deposition fluxes, and soluble deposition fluxes with detailed source categories of metals using the modified CMAQ model. We developed a monthly emission inventory of six metals – Fe, Al, V, Ni, Zn, and Cu – from terrestrial anthropogenic, ship, and dust sources in East Asia in 2017. Our results reveal the contribution of each source to the emissions, concentrations, and deposition fluxes of metals in the East Asian seas.