Contributions of foreign, domestic and natural emissions to US ozone estimated using the path-integral method in CAMx nested within GEOS-Chem

Dunker, Alan M.; Koo, Bonyoung; Yarwood, Greg

doi:https://doi.org/10.5194/acp-17-12553-2017

Articles | Volume 17, issue 20

https://doi.org/10.5194/acp-17-12553-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-17-12553-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 20

Research article

|

24 Oct 2017

Research article |

| 24 Oct 2017

Contributions of foreign, domestic and natural emissions to US ozone estimated using the path-integral method in CAMx nested within GEOS-Chem

Alan M. Dunker, Bonyoung Koo, and Greg Yarwood

Supplement

https://doi.org/10.5194/acp-17-12553-2017-supplement

Data sets

Emissions Database for Global Atmospheric Research European Commission http://edgar.jrc.ec.europa.eu/overview.php?v=42

Implementation of the RETRO Anthropogenic W. Reinhart D. and Millet http://wiki.seas.harvard.edu/geos-chem/images/4/49/GC_RETRO_update_v831_final.pdf

GEOS-5.2.0 Global Modeling and Assimilation Office (GMAO), NASA Goddard Space Flight Center http://wiki.seas.harvard.edu/geos-chem/index.php/GEOS-5

World Data Centre for Greenhouse Gases (WDCGG) World Meteorological Organization (WMO) http://ds.data.jma.go.jp/gmd/wdcgg/cgi-bin/wdcgg/catalogue.cgi

Model code and software

ESRL/GMD FTP Data Finder NOAA http://www.esrl.noaa.gov/gmd/dv/data/index.php

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Short summary

Using global and regional models, we determined the anthropogenic increment to ozone (base-case simulation minus a background simulation with only natural emissions) for the US and allocated the increment to anthropogenic emissions inside and outside the US. For the larger ozone concentrations in the base case, the relative importance of the sources is generally US emissions > anthropogenic lateral boundary concentrations (BCs) > Canadian/Mexican emissions ≫ anthropogenic top BCs.