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    Rights statement: An edited version of this paper was published by AGU. Copyright 2019 American Geophysical Union. Ding, S., Zhao, D., He, C., Huang, M., He, H., Tian, P., et al. ( 2019). Observed interactions between black carbon and hydrometeor during wet scavenging in mixed‐phase clouds. Geophysical Research Letters, 46, 8453– 8463. https://doi.org/10.1029/2019GL083171 To view the published open abstract, go to http://dx.doi.org and enter the DOI.

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    Available under license: CC BY-NC: Creative Commons Attribution-NonCommercial 4.0 International License

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Observed Interactions Between Black Carbon and Hydrometeor During Wet Scavenging in Mixed-Phase Clouds

Research output: Contribution to journalJournal articlepeer-review

Published
  • S. Ding
  • D. Zhao
  • C. He
  • M. Huang
  • H. He
  • P. Tian
  • Q. Liu
  • K. Bi
  • C. Yu
  • J. Pitt
  • Y. Chen
  • X. Ma
  • X. Jia
  • S. Kong
  • J. Wu
  • D. Hu
  • K. Hu
  • D. Ding
  • D. Liu
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<mark>Journal publication date</mark>28/07/2019
<mark>Journal</mark>Geophysical Research Letters
Issue number14
Volume46
Number of pages11
Pages (from-to)8453-8463
Publication StatusPublished
Early online date22/07/19
<mark>Original language</mark>English

Abstract

Wet scavenging of black carbon (BC) has been subject to large uncertainty, which importantly determines its atmospheric lifetime and indirect forcing impact on cloud microphysics. This study reveals the complex BC‐hydrometeor interactions in mixed‐phase clouds via single particle measurements in the real‐world environment, by capturing precipitation processes throughout cloud formation, cold rain/graupel, and subsequent snow events at a mountain site influenced by anthropogenic sources in wintertime. We found highly efficient BC wet scavenging during cloud formation, with large and thickly coated BC preferentially incorporated into droplets. During snow processes, BC core sizes in the interstitial phase steadily increased. A mechanism was proposed whereby the BC mass within each droplet was accumulated through droplet collision, leading to larger BC cores, which were then released back to the interstitial air through the Wegener‐Bergeron‐Findeisen processes when ice dominated. These results provide fundamental basis for constraining BC wet scavenging.

Bibliographic note

An edited version of this paper was published by AGU. Copyright 2019 American Geophysical Union. Ding, S., Zhao, D., He, C., Huang, M., He, H., Tian, P., et al. ( 2019). Observed interactions between black carbon and hydrometeor during wet scavenging in mixed‐phase clouds. Geophysical Research Letters, 46, 8453– 8463. https://doi.org/10.1029/2019GL083171 To view the published open abstract, go to http://dx.doi.org and enter the DOI.