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Stratospheric Circulation Simulation
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Abstract: This research looks at transport of chemical constituents in the lower
stratosphere.Almost all air enters the stratosphere over the tropics. A slow,
mean vertical circulation, called the Brewer-Dobson circulation, lofts air over
the tropics from the troposphere into the stratosphere. Air lofted into the
stratosphere then moves either to the north or the south where it drops back
down to the troposphere, completing the circulation by moving back towards the

A second, faster, horizontal circulation is active in the stratosphere. This
stratospheric circulation moves from east to west around the equator and
changes directions to west-to-east towards the poles. The net result is that
particles transported out of the tropics may cover the globe in only two months
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Geographic Coverage
Spatial coordinates   
  N: 90.0   S: -90.0   E: 180.0   W: -180.0

Data Set Citation
Dataset Originator/Creator: William Randel (scientist), Fey Wu (scientist), John Clyne (animator)
Online Resource:
Temporal Coverage
Start Date: 2001-12-20
Use Constraints Copyright 2002, University Corporation for Atmospheric Research (UCAR)
Ancillary Keywords
Originating Center
Data Center
Community Data Portal, Visualization and Enabling Technologies Section, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research Supplemental Info
Data Center URL:

Data Center Personnel
Email: cdp at
Contact Address:
National Center for Atmospheric Research
P.O. Box 3000
City: Boulder
Province or State: CO
Postal Code: 80307-3000
Country: USA
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Creation and Review Dates
DIF Creation Date: 2005-11-16
Last DIF Revision Date: 2016-11-18
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