Articles | Volume 17, issue 6
Atmos. Chem. Phys., 17, 4337–4353, 2017
Atmos. Chem. Phys., 17, 4337–4353, 2017

Research article 30 Mar 2017

Research article | 30 Mar 2017

Role of vertical and horizontal mixing in the tape recorder signal near the tropical tropopause

Anne A. Glanville and Thomas Birner

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Subject: Dynamics | Research Activity: Atmospheric Modelling | Altitude Range: Stratosphere | Science Focus: Physics (physical properties and processes)
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Cited articles

Abalos, M., Randel, W. J., Kinnison, D. E., and Serrano, E.: Quantifying tracer transport in the tropical lower stratosphere using WACCM, Atmos. Chem. Phys., 13, 10591–10607,, 2013.
Abalos, M., Legras, B., Ploeger, F., and Randel, W. J.: Evaluating the advective Brewer-Dobson circulation in three reanalyses for the period 1979–2012, J. Geophys. Res., 120, 7534–7554,, 2015.
Alexander, M. J., Richter, J. H., and Sutherland, B. R.: Generation and trapping of gravity waves from convection with comparison to parameterization, J. Atmos. Sci., 63, 2963–2977,, 2006.
Andrews, D. G., Holton, J. R., and Leovy, C. B.: Middle Atmosphere Dynamics, Academic Press, 136 pp, 1987.
Brewer, A. W.: Evidence for a world circulation provided by the measurements of helium and water vapour distribution in the stratosphere, Q. J. Roy. Meteor. Soc., 75, 351–363,, 1949.
Short summary
Nearly all air enters the stratosphere through the tropical tropopause, which exerts a control on stratospheric chemistry and climate. By combining satellite observations with a simple 1-D transport model, we study the roles of vertical and horizontal mixing in transport near the tropical tropopause. We find that vertical mixing may play a more significant role than previously assumed, which is potentially as important as slow vertical transport by the residual mass circulation.
Final-revised paper