Anderson, Daniel C., Nicely, Julie M., Salawitch, Ross J. et al. (33 more authors) (2016) A pervasive role for biomass burning in tropical high ozone/low water structures. Nature Communications. 10267. ISSN 2041-1723
Abstract
Air parcels with mixing ratios of high O 3 and low H 2O (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 O 3 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 O 3 and that low H 2O 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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Copyright, Publisher and Additional Information: | Supplementary information available for this article at http://www.nature.com/ncomms/2016/160113/ncomms10267/suppinfo/ncomms10267_S1.html This content is made available by the publisher under a Creative Commons CC BY Licence | ||||
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Institution: | The University of York | ||||
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) | ||||
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Depositing User: | Pure (York) | ||||
Date Deposited: | 18 Jan 2016 10:17 | ||||
Last Modified: | 31 Jan 2024 00:24 | ||||
Published Version: | https://doi.org/10.1038/ncomms10267 | ||||
Status: | Published | ||||
Refereed: | Yes | ||||
Identification Number: | https://doi.org/10.1038/ncomms10267 | ||||
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