Articles | Volume 15, issue 11
Atmos. Chem. Phys., 15, 6467–6486, 2015
Atmos. Chem. Phys., 15, 6467–6486, 2015

Research article 12 Jun 2015

Research article | 12 Jun 2015

The impact of overshooting deep convection on local transport and mixing in the tropical upper troposphere/lower stratosphere (UTLS)

W. Frey et al.

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Cited articles

Allen, G., Vaughan, G., Bower, K. N., Williams, P. I., Crosier, J., Flynn, M., Connolly, P., Hamilton, J. F., Lee, J. D., Saxton, J. E., Watson, N. M., Gallagher, M., Coe, H., Allan, J., Choularton, T. W., and Lewis, A. C.: Aerosol and trace-gas measurements in the Darwin area during the wet season, J. Geophys. Res., 113, D06306,, 2008.
Aschmann, J., Sinnhuber, B.-M., Chipperfield, M. P., and Hossaini, R.: Impact of deep convection and dehydration on bromine loading in the upper troposphere and lower stratosphere, Atmos. Chem. Phys., 11, 2671–2687,, 2011.
Baray, J.-L., Ancellet, G., Randriambelo, T., and Baldy, S.: Tropical cyclone Marlene and stratosphere-troposphere exchange, J. Geophys. Res., 104, 13953–13970,, 1999.
Barth, M. C., Kim, S. W., Wang, C., Pickering, K. E., Ott, L. E., Stenchikov, G., Leriche, M., Cautenet, S., Pinty, J. P., Barthe, C., Mari, C., Helsdon, J. H., Farley, R. D., Fridlind, A. M., Ackerman, A. S., Spiridonov, V., and Telenta, B.: Cloud-scale model intercomparison of chemical constituent transport in deep convection, Atmos. Chem. Phys., 7, 4709–4731,, 2007.
Barthe, C., Mari, C., Chaboureau, J. P., Tulet, P., Roux, F., and Pinty, J. P.: Numerical study of tracers transport by a mesoscale convective system over West Africa, Ann. Geophys., 29, 731–747,, 2011.
Short summary
This study examines the simulated downward transport and mixing of stratospheric air into the upper tropical troposphere as observed on a research flight during the SCOUT-O3 campaign in connection with a deep convective system, using the WRF model. Passive tracers are initialised to study the impact of the deep convection on the tracers and water vapour. We use the model to explain the processes causing the transport and also expose areas of inconsistencies between the model and observations.
Final-revised paper