Articles | Volume 15, issue 14
https://doi.org/10.5194/acp-15-7841-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-15-7841-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
16 Jul 2015
Research article |
| 16 Jul 2015
Brown carbon aerosol in the North American continental troposphere: sources, abundance, and radiative forcing
School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
now at: Atmospheric Sciences and Global Change Division, Pacific Northwest, National Laboratory, Richland, WA 99352, USA
E. Scheuer
Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, Durham, NH 03824, USA
J. Dibb
Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, Durham, NH 03824, USA
G. S. Diskin
NASA Langley Research Center, Hampton, VA 23681, USA
L. D. Ziemba
NASA Langley Research Center, Hampton, VA 23681, USA
K. L. Thornhill
NASA Langley Research Center, Hampton, VA 23681, USA
B. E. Anderson
NASA Langley Research Center, Hampton, VA 23681, USA
A. Wisthaler
Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria
T. Mikoviny
Oak Ridge Associated Universities (ORAU), Oak Ridge, TN 37830, USA
J. J. Devi
School of Civil & Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, USA
M. Bergin
School of Civil & Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, USA
A. E. Perring
Chemical Sciences Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado 80305, USA
Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, USA
M. Z. Markovic
Chemical Sciences Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado 80305, USA
Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, USA
J. P. Schwarz
Chemical Sciences Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado 80305, USA
Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, USA
P. Campuzano-Jost
Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, USA
Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309, USA
D. A. Day
Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, USA
Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309, USA
J. L. Jimenez
Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, USA
Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309, USA
School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
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Latest update: 06 Dec 2025
Short summary
Brown carbon (BrC) is found throughout the US continental troposphere during a summer of extensive biomass burning and its prevalence relative to black carbon (BC) increases with altitude. A radiative transfer model based on direct measurements of aerosol scattering and absorption by BC and BrC shows BrC reduces top-of-atmosphere forcing by 20%. A method to estimate BrC radiative forcing efficiencies from surface-based measurements is provided.
Brown carbon (BrC) is found throughout the US continental troposphere during a summer of...
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