A pervasive role for biomass burning in tropical high ozone/low water structures

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作者
Daniel C. Anderson
Julie M. Nicely
Ross J. Salawitch
Timothy P. Canty
Russell R. Dickerson
Thomas F. Hanisco
Glenn M. Wolfe
Eric C. Apel
Elliot Atlas
Thomas Bannan
Stephane Bauguitte
Nicola J. Blake
James F. Bresch
Teresa L. Campos
Lucy J. Carpenter
Mark D. Cohen
Mathew Evans
Rafael P. Fernandez
Brian H. Kahn
Douglas E. Kinnison
Samuel R. Hall
Neil R.P. Harris
Rebecca S. Hornbrook
Jean-Francois Lamarque
Michael Le Breton
James D. Lee
Carl Percival
Leonhard Pfister
R. Bradley Pierce
Daniel D. Riemer
Alfonso Saiz-Lopez
Barbara J.B. Stunder
Anne M. Thompson
Kirk Ullmann
Adam Vaughan
Andrew J. Weinheimer
机构
[1] University of Maryland,Department of Atmospheric and Oceanic Science
[2] University of Maryland,Department of Chemistry and Biochemistry
[3] Earth System Science Interdisciplinary Center,Department of Atmospheric Sciences
[4] University of Maryland,Department of Chemistry
[5] NASA Goddard Space Flight Center,Department of Chemistry
[6] Joint Center for Earth Systems Technology,Department of Atmospheric Chemistry and Climate
[7] University of Maryland Baltimore County,Department of Natural Science
[8] Atmospheric Chemistry Observation and Modeling Laboratory,Department of Chemistry
[9] National Center for Atmospheric Research,Earth Sciences Division
[10] Rosenstiel School of Marine and Atmospheric Science,undefined
[11] University of Miami,undefined
[12] Centre for Atmospheric Science,undefined
[13] School of Earth,undefined
[14] Atmospheric,undefined
[15] and Environmental Science,undefined
[16] The University of Manchester,undefined
[17] Facility for Airborne Atmospheric Measurements,undefined
[18] Deparment of Chemistry,undefined
[19] University of California,undefined
[20] Mesoscale and Microscale Meteorology Laboratory,undefined
[21] National Center for Atmospheric Research,undefined
[22] Wolfson Atmospheric Chemistry Laboratories,undefined
[23] University of York,undefined
[24] NOAA Air Resources Laboratory,undefined
[25] National Centre for Atmospheric Science,undefined
[26] University of York,undefined
[27] Institute of Physical Chemistry Rocasolano,undefined
[28] CSIC,undefined
[29] National Research Council (CONICET),undefined
[30] FCEN-UNCuyo,undefined
[31] Jet Propulsion Laboratory,undefined
[32] California Institute of Technology,undefined
[33] Cambridge University,undefined
[34] Climate and Global Dynamics Laboratory,undefined
[35] National Center for Atmospheric Research,undefined
[36] NASA Ames Research Center,undefined
[37] Moffett Field,undefined
[38] NOAA/NESDIS Center for Satellite Applications and Research,undefined
来源
Nature Communications | / 7卷
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摘要
Air parcels with mixing ratios of high O3 and low H2O (HOLW) are common features in the tropical western Pacific (TWP) mid-troposphere (300–700 hPa). Here, using data collected during aircraft sampling of the TWP in winter 2014, we find strong, positive correlations of O3 with multiple biomass burning tracers in these HOLW structures. Ozone levels in these structures are about a factor of three larger than background. Models, satellite data and aircraft observations are used to show fires in tropical Africa and Southeast Asia are the dominant source of high O3 and that low H2O results from large-scale descent within the tropical troposphere. Previous explanations that attribute HOLW structures to transport from the stratosphere or mid-latitude troposphere are inconsistent with our observations. This study suggest a larger role for biomass burning in the radiative forcing of climate in the remote TWP than is commonly appreciated.
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