Articles | Volume 19, issue 7
Atmos. Chem. Phys., 19, 4517–4539, 2019

Special issue: The SPARC Reanalysis Intercomparison Project (S-RIP) (ACP/ESSD...

Atmos. Chem. Phys., 19, 4517–4539, 2019

Research article 05 Apr 2019

Research article | 05 Apr 2019

The climatology of the Brewer–Dobson circulation and the contribution of gravity waves

Kaoru Sato and Soichiro Hirano

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Cited articles

Abalos, M., Randel, W. J., and Serrano, E.: Dynamical Forcing of Subseasonal Variability in the Tropical Brewer–Dobson Circulation, J. Atmos. Sci., 71, 3439–3453,, 2014. 
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. and Vincent, R. A.: Gravity waves in the tropical lower stratosphere: An observational study of seasonal and interannual variability, J. Geophys. Res.-Atmos., 105, 17971–17982,, 2000. 
Alexander, M. J., Eckermann, S. D., Broutman, D., and Ma, J.: Momentum flux estimates for South Georgia Island mountain waves in the stratosphere observed via satellite, Geophys. Res. Lett., 36, 1–5,, 2009. 
Allen, S. J. and Vincent, R. A.: Gravity wave activity in the lower atmosphere: Seasonal and latitudinal variations, J. Geophys. Res., 100, 1327–1350,, 1995. 
Short summary
The climatology of the Brewer–Dobson circulation and the potential contribution of gravity waves (GWs) are examined using four modern reanalysis datasets for the annual mean and each season. In this study, unresolved waves are designated as GWs. GWs are essential to determine the high-latitude extension and the turn-around latitude except in summer, although their contribution to the upward mass flux is relatively small. Plausible deficiencies of the current GW parameterizations are discussed.
Final-revised paper