Articles | Volume 18, issue 16
https://doi.org/10.5194/acp-18-12141-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-18-12141-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Aug 2018
Research article |
| 22 Aug 2018
| 22 Aug 2018
Measurement and modeling of the multiwavelength optical properties of uncoated flame-generated soot
Sara D. Forestieri
CORRESPONDING AUTHOR
Department of Civil and Environmental Engineering, University of
California, Davis, CA 95616, USA
now at: California Air Resources Board, Sacramento, CA 95814, USA
Taylor M. Helgestad
Department of Civil and Environmental Engineering, University of
California, Davis, CA 95616, USA
now at: California Air Resources Board, Sacramento, CA 95814, USA
Andrew T. Lambe
Aerodyne Research Inc., Billerica, MA 01821, USA
Chemistry Department, Boston College, Boston, MA 02467, USA
Lindsay Renbaum-Wolff
Aerodyne Research Inc., Billerica, MA 01821, USA
Daniel A. Lack
NOAA Earth System Research Laboratory, Boulder, CO 80305, USA
Cooperative Institute for Research of the
Environmental Sciences, University of Colorado, Boulder, CO 80305, USA
now at: Transport Emissions, Air Quality and Climate
Consulting, Brisbane, Australia
Paola Massoli
Aerodyne Research Inc., Billerica, MA 01821, USA
Eben S. Cross
Department of Civil and Environmental Engineering, Massachusetts
Institute of Technology, Cambridge, MA 02139, USA
now at: Aerodyne Research Inc., Billerica, MA
01821, USA
Manvendra K. Dubey
Los Alamos National Laboratory, Los Alamos, NM 87545, USA
Claudio Mazzoleni
Department of Physics and Atmospheric Sciences Program, Michigan
Technological University, Houghton, MI 49931, USA
Jason S. Olfert
Department of Mechanical Engineering, University of Alberta, Edmonton,
Alberta, Canada
Arthur J. Sedlacek III
Biological, Environmental and Climate Sciences Department, Brookhaven
National Laboratory, Upton, NY 11973, USA
Andrew Freedman
Aerodyne Research Inc., Billerica, MA 01821, USA
Paul Davidovits
Chemistry Department, Boston College, Boston, MA 02467, USA
Timothy B. Onasch
Aerodyne Research Inc., Billerica, MA 01821, USA
Chemistry Department, Boston College, Boston, MA 02467, USA
Department of Civil and Environmental Engineering, University of
California, Davis, CA 95616, USA
Data sets
Measurement and modeling of the multi-wavelength optical properties of uncoated flame-generated soot: Data from the BC2, BC3, BC3+ and BC4 studies S. D. Forestieri and C. D. Cappa https://doi.org/10.25338/B8JP4V
Short summary
We characterized optical properties of flame-derived black carbon particles and interpret our observations through the use of Mie theory and Rayleigh–Debye–Gans theory. We determined that the mass absorption coefficient is independent of particle collapse and use this to derive theory- and wavelength-specific refractive indices for black carbon (BC). We demonstrate the inadequacy of Mie theory and suggest an alternative approach for atmospheric models to better represent light absorption by BC.
We characterized optical properties of flame-derived black carbon particles and interpret our...
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