Direct measurements of the convective recycling of the upper troposphere

Authors

Timothy H. Bertram, University of California, Berkeley
Anne E. Perring, University of California, Berkeley
Paul J. Wooldridge, University of California, Berkeley
John D. Crounse, California Institute of Technology
Alan J. Kwan, California Institute of Technology
Paul O. Wennberg, California Institute of Technology
Eric Scheuer, University of New Hampshire Durham
Jack Dibb, University of New Hampshire Durham
Melody Avery, NASA Langley Research Center
Glen Sachse, NASA Langley Research Center
Stephanie A. Vay, NASA Langley Research Center
James H. Crawford, NASA Langley Research Center
Cameron S. McNaughton, School of Ocean and Earth Science and Technology
Antony Clarke, School of Ocean and Earth Science and Technology
Kenneth E. Pickering, University of Maryland, College Park
Henry Fuelberg, Florida State University
Greg Huey, Georgia Institute of Technology
Donald R. Blake, University of California, Irvine
Hanwant B. Singh, NASA Ames Research Center
Samuel R. Hall, National Center for Atmospheric Research
Richard E. Shetter, National Center for Atmospheric Research
Alan Fried, National Center for Atmospheric Research
Brian G. Heikes, University of Rhode Island
Ronald C. Cohen, University of California, Berkeley

Document Type

Article

Date of Original Version

2-9-2007

Abstract

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.

Publication Title, e.g., Journal

Science

Volume

315

Issue

5813

Citation/Publisher Attribution

Bertram, Timothy H., Anne E. Perring, Paul J. Wooldridge, John D. Crounse, Alan J. Kwan, Paul O. Wennberg, Eric Scheuer, Jack Dibb, Melody Avery, Glen Sachse, Stephanie A. Vay, James H. Crawford, Cameron S. McNaughton, Antony Clarke, Kenneth E. Pickering, Henry Fuelberg, Greg Huey, Donald R. Blake, Hanwant B. Singh, Samuel R. Hall, Richard E. Shetter, Alan Fried, Brian G. Heikes, and Ronald C. Cohen. "Direct measurements of the convective recycling of the upper troposphere." Science 315, 5813 (2007). doi: 10.1126/science.1134548.