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    Rights statement: An edited version of this paper was published by AGU. Copyright 2020 American Geophysical Union. Liu, D., Hu, K., Zhao, D., Ding, S., Wu, Y., & Zhou, C., et al. (2020). Efficient vertical transport of black carbon in the planetary boundary layer. Geophysical Research Letters, 47, e2020GL088858. https://doi.org/10.1029/2020GL088858 To view the published open abstract, go to http://dx.doi.org and enter the DOI

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Efficient Vertical Transport of Black Carbon in the Planetary Boundary Layer

Research output: Contribution to journalJournal articlepeer-review

Published
  • D. Liu
  • K. Hu
  • D. Zhao
  • S. Ding
  • Y. Wu
  • C. Zhou
  • C. Yu
  • P. Tian
  • Q. Liu
  • K. Bi
  • B. Hu
  • D. Ji
  • S. Kong
  • B. Ouyang
  • H. He
  • M. Huang
  • D. Ding
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Article numbere2020GL088858
<mark>Journal publication date</mark>16/08/2020
<mark>Journal</mark>Geophysical Research Letters
Issue number15
Volume47
Number of pages10
Publication StatusPublished
Early online date7/08/20
<mark>Original language</mark>English

Abstract

Vertical distribution of black carbon (BC) determines the layer where its heating impacts exert. This study presents continuous and simultaneous measurements at surface and on a mountain site above the wintertime planetary boundary layer influenced by uplifted surface anthropogenic emissions. BC was observed efficiently transported upwards by daytime convective mixing. However, this vertical transport was less for other particulate masses. An about twofold higher BC mass fraction was thus present at mountain than surface, hereby a lowered single-scattering albedo (SSA) by 0.06. This may be caused by the evaporative loss of condensed semivolatile materials, prevailing the secondary particulate formation, in a cleaner environment containing less precursors. The elevated BC mass corresponded with the most intensive solar radiation at midday, wielding more heating impacts over the planetary boundary layer (PBL). This phenomenon may apply to other remote regions where a reduced SSA will introduce more positive radiative effects. © 2020. American Geophysical Union. All Rights Reserved.

Bibliographic note

An edited version of this paper was published by AGU. Copyright 2020 American Geophysical Union. Liu, D., Hu, K., Zhao, D., Ding, S., Wu, Y., & Zhou, C., et al. (2020). Efficient vertical transport of black carbon in the planetary boundary layer. Geophysical Research Letters, 47, e2020GL088858. https://doi.org/10.1029/2020GL088858 To view the published open abstract, go to http://dx.doi.org and enter the DOI