The impact of North American anthropogenic emissions and lightning on long-range transport of trace gases and their export from the continent during summers 2002 and 2004
We analyze the contribution of North American (NA) lightning and anthropogenic emissions to ozone concentrations, radiative forcing, and export fluxes from North America during summers 2002 and 2004 using the University of Maryland Chemical Transport Model (UMD-CTM) driven by GEOS-4 reanalysis. Redu...
Published in: | Journal of Geophysical Research |
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American Geophysical Union (AGU)
2011
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Online Access: | http://hdl.handle.net/10754/552131 https://doi.org/10.1029/2010JD014305 |
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ftkingabdullahun:oai:repository.kaust.edu.sa:10754/552131 2023-12-31T10:20:37+01:00 The impact of North American anthropogenic emissions and lightning on long-range transport of trace gases and their export from the continent during summers 2002 and 2004 Martini, Matus Allen, Dale J. Pickering, Kenneth E. Stenchikov, Georgiy L. Richter, Andreas Hyer, Edward J. Loughner, Christopher P. Earth Science and Engineering Program Physical Science and Engineering (PSE) Division Department of Atmospheric and Oceanic Science, University of Maryland, College Park, Maryland, USA NASA Goddard Space Flight Center, Greenbelt, Maryland, USA Department of Environmental Sciences, Rutgers, State University of New Jersey, New Brunswick, New Jersey, USA Institute of Environmental Physics, University of Bremen, Bremen, Germany UCAR Visiting Scientist Program, Naval Research Laboratory, Monterey, California, USA 2011-04-07 application/pdf text/plain application/postscript image/tiff http://hdl.handle.net/10754/552131 https://doi.org/10.1029/2010JD014305 unknown American Geophysical Union (AGU) http://doi.wiley.com/10.1029/2010JD014305 The impact of North American anthropogenic emissions and lightning on long-range transport of trace gases and their export from the continent during summers 2002 and 2004 2011, 116 (D7) Journal of Geophysical Research doi:10.1029/2010JD014305 0148-0227 Journal of Geophysical Research http://hdl.handle.net/10754/552131 Archived with thanks to Journal of Geophysical Research radiative forcing long-range transport interannual variability of lightning Article 2011 ftkingabdullahun https://doi.org/10.1029/2010JD014305 2023-12-02T20:21:31Z We analyze the contribution of North American (NA) lightning and anthropogenic emissions to ozone concentrations, radiative forcing, and export fluxes from North America during summers 2002 and 2004 using the University of Maryland Chemical Transport Model (UMD-CTM) driven by GEOS-4 reanalysis. Reduced power plant emissions (NOx SIP Call) and cooler temperatures in 2004 compared to 2002 resulted in lower ambient ozone concentrations over the eastern United States. Lightning flash rates in early summer 2004 were 50% higher than 2002 over the United States. Over the North Atlantic, changes in ozone column between early summer 2002 and 2004 due to changes in lightning and meteorology exceeded the change due to emission reductions by a factor of 7. Late summer changes in lightning had a much smaller impact on ozone columns. In summer 2004, net downward radiative flux at the tropopause due to ozone produced from anthropogenic emissions ranged from 0.15 to 0.30 W m−2 across the North Atlantic, while that due to ozone produced from lightning NO emissions ranged from 0.20 to 0.50 W m−2. Enhanced lofting of polluted air followed by stronger westerly winds led to more net export of NOx, NOy, and ozone in early summer 2004 than 2002 despite reduced anthropogenic emissions. Ozone export fluxes across the eastern NA boundary due to anthropogenic emissions were factors of 1.6 and 2 larger than those due to lightning in 2004 and 2002, respectively. Doubling the NA lightning NO source increased downwind ozone enhancements due to lightning NO emissions by one third. Article in Journal/Newspaper North Atlantic King Abdullah University of Science and Technology: KAUST Repository Journal of Geophysical Research 116 D7 |
institution |
Open Polar |
collection |
King Abdullah University of Science and Technology: KAUST Repository |
op_collection_id |
ftkingabdullahun |
language |
unknown |
topic |
radiative forcing long-range transport interannual variability of lightning |
spellingShingle |
radiative forcing long-range transport interannual variability of lightning Martini, Matus Allen, Dale J. Pickering, Kenneth E. Stenchikov, Georgiy L. Richter, Andreas Hyer, Edward J. Loughner, Christopher P. The impact of North American anthropogenic emissions and lightning on long-range transport of trace gases and their export from the continent during summers 2002 and 2004 |
topic_facet |
radiative forcing long-range transport interannual variability of lightning |
description |
We analyze the contribution of North American (NA) lightning and anthropogenic emissions to ozone concentrations, radiative forcing, and export fluxes from North America during summers 2002 and 2004 using the University of Maryland Chemical Transport Model (UMD-CTM) driven by GEOS-4 reanalysis. Reduced power plant emissions (NOx SIP Call) and cooler temperatures in 2004 compared to 2002 resulted in lower ambient ozone concentrations over the eastern United States. Lightning flash rates in early summer 2004 were 50% higher than 2002 over the United States. Over the North Atlantic, changes in ozone column between early summer 2002 and 2004 due to changes in lightning and meteorology exceeded the change due to emission reductions by a factor of 7. Late summer changes in lightning had a much smaller impact on ozone columns. In summer 2004, net downward radiative flux at the tropopause due to ozone produced from anthropogenic emissions ranged from 0.15 to 0.30 W m−2 across the North Atlantic, while that due to ozone produced from lightning NO emissions ranged from 0.20 to 0.50 W m−2. Enhanced lofting of polluted air followed by stronger westerly winds led to more net export of NOx, NOy, and ozone in early summer 2004 than 2002 despite reduced anthropogenic emissions. Ozone export fluxes across the eastern NA boundary due to anthropogenic emissions were factors of 1.6 and 2 larger than those due to lightning in 2004 and 2002, respectively. Doubling the NA lightning NO source increased downwind ozone enhancements due to lightning NO emissions by one third. |
author2 |
Earth Science and Engineering Program Physical Science and Engineering (PSE) Division Department of Atmospheric and Oceanic Science, University of Maryland, College Park, Maryland, USA NASA Goddard Space Flight Center, Greenbelt, Maryland, USA Department of Environmental Sciences, Rutgers, State University of New Jersey, New Brunswick, New Jersey, USA Institute of Environmental Physics, University of Bremen, Bremen, Germany UCAR Visiting Scientist Program, Naval Research Laboratory, Monterey, California, USA |
format |
Article in Journal/Newspaper |
author |
Martini, Matus Allen, Dale J. Pickering, Kenneth E. Stenchikov, Georgiy L. Richter, Andreas Hyer, Edward J. Loughner, Christopher P. |
author_facet |
Martini, Matus Allen, Dale J. Pickering, Kenneth E. Stenchikov, Georgiy L. Richter, Andreas Hyer, Edward J. Loughner, Christopher P. |
author_sort |
Martini, Matus |
title |
The impact of North American anthropogenic emissions and lightning on long-range transport of trace gases and their export from the continent during summers 2002 and 2004 |
title_short |
The impact of North American anthropogenic emissions and lightning on long-range transport of trace gases and their export from the continent during summers 2002 and 2004 |
title_full |
The impact of North American anthropogenic emissions and lightning on long-range transport of trace gases and their export from the continent during summers 2002 and 2004 |
title_fullStr |
The impact of North American anthropogenic emissions and lightning on long-range transport of trace gases and their export from the continent during summers 2002 and 2004 |
title_full_unstemmed |
The impact of North American anthropogenic emissions and lightning on long-range transport of trace gases and their export from the continent during summers 2002 and 2004 |
title_sort |
impact of north american anthropogenic emissions and lightning on long-range transport of trace gases and their export from the continent during summers 2002 and 2004 |
publisher |
American Geophysical Union (AGU) |
publishDate |
2011 |
url |
http://hdl.handle.net/10754/552131 https://doi.org/10.1029/2010JD014305 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://doi.wiley.com/10.1029/2010JD014305 The impact of North American anthropogenic emissions and lightning on long-range transport of trace gases and their export from the continent during summers 2002 and 2004 2011, 116 (D7) Journal of Geophysical Research doi:10.1029/2010JD014305 0148-0227 Journal of Geophysical Research http://hdl.handle.net/10754/552131 |
op_rights |
Archived with thanks to Journal of Geophysical Research |
op_doi |
https://doi.org/10.1029/2010JD014305 |
container_title |
Journal of Geophysical Research |
container_volume |
116 |
container_issue |
D7 |
_version_ |
1786831085185794048 |