Direct Measurements of the Convective Recycling of the Upper Troposphere
Author(s) -
Timothy H. Bertram,
A. E. Perring,
P. J. Wooldridge,
J. D. Crounse,
A. J. Kwan,
P. O. Wennberg,
E. Scheuer,
Jack E. Dibb,
M. A. Avery,
G. W. Sachse,
S. A. Vay,
J. H. Crawford,
C. S. McNaughton,
A. D. Clarke,
Kenneth Pickering,
Henry E. Fuelberg,
Greg Huey,
D. R. Blake,
H. B. Singh,
Samuel R. Hall,
R. E. Shetter,
Alan Fried,
Brian G. Heikes,
R. C. Cohen
Publication year - 2007
Publication title -
science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 12.556
H-Index - 1186
eISSN - 1095-9203
pISSN - 0036-8075
DOI - 10.1126/science.1134548
Subject(s) - troposphere , convection , environmental science , atmospheric composition , atmospheric sciences , atmospheric chemistry , meteorology , representation (politics) , climatology , geology , ozone , physics , atmosphere (unit) , politics , political science , law
We present a statistical representation of the aggregate effects of deep convection on the chemistry and dynamics of the upper troposphere (UT) based on direct aircraft observations of the chemical composition of the UT over the eastern United States and Canada during summer. These measurements provide unique observational constraints on the chemistry occurring downwind of convection and the rate at which air in the UT is recycled. These results provide quantitative measures that can be used to evaluate global climate and chemistry models.
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