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Convective lofting links Indian Ocean air pollution to paradoxical South Atlantic ozone maximaWe describe a broad resolution of the Atlantic Parado concerning the seasonal and geographic distribution, of tropical tropospheric ozone. We highlight periods of significant maximum tropospheric O3 for Jan.- April, 1999, exploiting satellite estimates and SHADOZ (Southern Hemisphere Additional Ozonesondes). Trajectory analyses connecting sondes and Total Tropospheric Ozone (TTO) maps suggest a complex influence from the Indian Ocean: beginning with mixed combustion sources, then low level transport, cumulonimbus venting, possible stratospheric input, and finally high-level transport to the west, with possible mixing over Africa. For the Jan.-March highest column-O3 periods in the Atlantic, distinct sounding peaks trace to specific NO sources, especially lightning, while in the same episodes, recurring every 20-50 days, more diffuse buildups of Indian-to-Atlantic pollution make important contributions.
Document ID
20060009189
Acquisition Source
Headquarters
Document Type
Reprint (Version printed in journal)
Authors
Chatfield, R. B.
(NASA Ames Research Center Moffett Field, CA, United States)
Guan, H.
(NASA Ames Research Center Moffett Field, CA, United States)
Thompson, A. M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Witte, J. C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 23, 2013
Publication Date
March 28, 2005
Publication Information
Publication: Geophysical Research Letters
Publisher: American Geophysical Union
Volume: 31
Issue: 6
ISSN: 0094-8276
Subject Category
Geophysics
Report/Patent Number
Paper-2003GL018866
Funding Number(s)
CONTRACT_GRANT: NCC2-1329
Distribution Limits
Public
Copyright
Other

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