Articles | Volume 18, issue 8
https://doi.org/10.5194/acp-18-5483-2018
© 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-18-5483-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
23 Apr 2018
Research article |
| 23 Apr 2018
| 23 Apr 2018
High-resolution inversion of OMI formaldehyde columns to quantify isoprene emission on ecosystem-relevant scales: application to the southeast US
Jennifer Kaiser
CORRESPONDING AUTHOR
John A. Paulson School of Engineering and Applied Sciences, Harvard
University, Cambridge, MA, USA
Daniel J. Jacob
John A. Paulson School of Engineering and Applied Sciences, Harvard
University, Cambridge, MA, USA
Department of Earth and Planetary Sciences, Harvard University,
Cambridge, MA, USA
John A. Paulson School of Engineering and Applied Sciences, Harvard
University, Cambridge, MA, USA
Katherine R. Travis
John A. Paulson School of Engineering and Applied Sciences, Harvard
University, Cambridge, MA, USA
now at: Department of Civil and Environmental Engineering,
Massachusetts Institute of Technology, Cambridge, MA, USA
Jenny A. Fisher
Centre for Atmospheric Chemistry, School of Chemistry, University of
Wollongong, Wollongong, NSW, Australia
School of Earth and Environmental Sciences, University of Wollongong,
Wollongong, NSW, Australia
Gonzalo González Abad
Harvard–Smithsonian Center for Astrophysics, Cambridge, MA, USA
Lin Zhang
Laboratory for Climate and Ocean-Atmosphere Studies, Department of
Atmospheric and Oceanic Sciences, School of Physics, Peking University,
Beijing 100871, People's Republic of China
Xuesong Zhang
Department of Physics, University of Toronto, Toronto, Ontario, Canada
Alan Fried
Institute for Arctic and Alpine Research, University of Colorado,
Boulder, CO, USA
John D. Crounse
Division of Geological and Planetary Sciences, California Institute of
Technology, Pasadena, CA, USA
Jason M. St. Clair
Division of Geological and Planetary Sciences, California Institute of
Technology, Pasadena, CA, USA
now at: Atmospheric Chemistry and Dynamics Laboratory, NASA
Goddard Space Flight Center, Greenbelt, MD, USA
now at: Joint Center for Earth Systems Technology, University
of Maryland Baltimore County, Baltimore, MD, USA
Armin Wisthaler
Institute for Ion Physics and Applied Physics, University of
Innsbruck, Innsbruck, Austria
Department of Chemistry, University of Oslo, Oslo, Norway
Data sets
OMI/Aura Formaldehyde (HCHO) Total Column 1-orbit L2 Swath 13x24 km V003 Kelly Chance https://doi.org/10.5067/Aura/OMI/DATA2015
SEAC4RS Field Campaign Data SEAC4RS Science Team https://doi.org/10.5067/aircraft/seac4rs/aerosol-tracegas-cloud
Short summary
Isoprene emissions from vegetation have a large effect on atmospheric chemistry and air quality. Here we use the adjoint of GEOS-Chem in an inversion of OMI formaldehyde observations to produce top-down estimates of isoprene emissions in the southeast US during the summer of 2013. We find that MEGAN v2.1 is biased high on average by 40 %. Our downward correction of isoprene emissions leads to a small reduction in modeled surface O3 and decreases the contribution of isoprene to organic aerosol.
Isoprene emissions from vegetation have a large effect on atmospheric chemistry and air quality....
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