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Science 16 May 1997:
Vol. 276. no. 5315, pp. 1079 - 1083
DOI: 10.1126/science.276.5315.1079
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Articles

Dynamics of Transport Processes in the Upper Troposphere

J. D. Mahlman

A number of key problems in atmospheric chemistry are shaped by the strength and character of the various mechanisms acting to move and mix air in the upper troposphere. These transport processes are examined from a mechanistic perspective, with primary emphasis on the tropopause and middle-troposphere regions in the extratropics. The roles of vertical and horizontal transport "barriers" are explored, including the processes by which such barriers are created and are overcome. These transport considerations lead to a hypothesis concerning the processes that shape the tropopause itself. Some perspectives are offered on the still immature subject of transport in the upper troposphere of the tropics.

The author is with the Geophysical Fluid Dynamics Laboratory, National Oceanic and Atmospheric Administration, Box 308, Princeton University, Princeton, NJ 08542, USA.

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Tropospheric Chemistry and Transport.
D. Kley (1997)
Science 276, 1043-1044
   Abstract »    Full Text »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)