Articles | Volume 19, issue 9
Research article
17 May 2019
Research article |  | 17 May 2019

A numerical process study on the rapid transport of stratospheric air down to the surface over western North America and the Tibetan Plateau

Bojan Škerlak, Stephan Pfahl, Michael Sprenger, and Heini Wernli

Related authors

The upstream-downstream mechanism of North Atlantic and Mediterranean cyclones in semi-idealized simulations
Alexander Scherrmann, Heini Wernli, and Emmanouil Flaounas
EGUsphere,,, 2023
This preprint is open for discussion and under review for Weather and Climate Dynamics (WCD).
Short summary
Influence of atmospheric rivers and associated weather systems on precipitation in the Arctic
Melanie Lauer, Annette Rinke, Irina Gorodetskaya, Michael Sprenger, Mario Mech, and Susanne Crewell
Atmos. Chem. Phys., 23, 8705–8726,,, 2023
Short summary
On the descent of the Alpine south foehn
Lukas Jansing, Lukas Papritz, and Michael Sprenger
EGUsphere,,, 2023
Short summary
A composite approach to produce reference datasets for extratropical cyclone tracks: application to Mediterranean cyclones
Emmanouil Flaounas, Leonardo Aragão, Lisa Bernini, Stavros Dafis, Benjamin Doiteau, Helena Flocas, Suzanne L. Gray, Alexia Karwat, John Kouroutzoglou, Piero Lionello, Mario Marcello Miglietta, Florian Pantillon, Claudia Pasquero, Platon Patlakas, María Ángeles Picornell, Federico Porcù, Matthew D. K. Priestley, Marco Reale, Malcolm J. Roberts, Hadas Saaroni, Dor Sandler, Enrico Scoccimarro, Michael Sprenger, and Baruch Ziv
Weather Clim. Dynam., 4, 639–661,,, 2023
Short summary
Future changes in North Atlantic winter cyclones in CESM-LE – Part 2: A Lagrangian analysis
Edgar Dolores-Tesillos and Stephan Pfahl
EGUsphere,,, 2023
Short summary

Related subject area

Subject: Dynamics | Research Activity: Atmospheric Modelling and Data Analysis | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
Meteorological modeling sensitivity to parameterizations and satellite-derived surface datasets during the 2017 Lake Michigan Ozone Study
Jason A. Otkin, Lee M. Cronce, Jonathan L. Case, R. Bradley Pierce, Monica Harkey, Allen Lenzen, David S. Henderson, Zac Adelman, Tsengel Nergui, and Christopher R. Hain
Atmos. Chem. Phys., 23, 7935–7954,,, 2023
Short summary
Trajectory enhancement of low-earth orbiter thermodynamic retrievals to predict convection: a simulation experiment
Mark T. Richardson, Brian H. Kahn, and Peter Kalmus
Atmos. Chem. Phys., 23, 7699–7717,,, 2023
Short summary
Lagrangian transport simulations using the extreme convection parameterization: an assessment for the ECMWF reanalyses
Lars Hoffmann, Paul Konopka, Jan Clemens, and Bärbel Vogel
Atmos. Chem. Phys., 23, 7589–7609,,, 2023
Short summary
Better-constrained climate sensitivity when accounting for dataset dependency on pattern effect estimates
Angshuman Modak and Thorsten Mauritsen
Atmos. Chem. Phys., 23, 7535–7549,,, 2023
Short summary
Determination of the chemical equator from GEOS-Chem model simulation: a focus on the tropical western Pacific region
Xiaoyu Sun, Mathias Palm, Katrin Müller, Jonas Hachmeister, and Justus Notholt
Atmos. Chem. Phys., 23, 7075–7090,,, 2023
Short summary

Cited articles

Akritidis, D., Zanis, P., Pytharoulis, I., Mavrakis, A., and Karacostas, T.: A deep stratospheric intrusion event down to the earth's surface of the megacity of Athens, Meteorol. Atmos. Phys., 109, 9–18, 2010. 
Akritidis, D., Katragkou, E., Zanis, P., Pytharoulis, I., Melas, D., Flemming, J., Inness, A., Clark, H., Plu, M., and Eskes, H.: A deep stratosphere-to-troposphere ozone transport event over Europe simulated in CAMS global and regional forecast systems: analysis and evaluation, Atmos. Chem. Phys., 18, 15515==15534,, 2018. 
Baldauf, M., Seifert, A., Förstner, J., Majewski, D., and Raschendorfer, M.: Operational convective-scale numerical weather prediction with the COSMO model: Description and sensitivities, Mon. Weather Rev., 139, 3887–3905,, 2011. 
Beekmann, M., Ancellet, G., Blonsky, S., De Muer, D., Ebel, A., Elbern, H., Hendricks, J., Kowol, J., Mancier, C., Sladkovic, R., Smit, H. G. J., Speth, P., Trickl, T., and Van Haver, P.: Regional and global tropopause fold occurrence and related ozone flux across the tropopause, J. Atmos. Chem., 28, 29–44, 1997. 
Bott, A.: A positive definite advection scheme obtained by nonlinear renormalization of the advective fluxes, Mon. Weather Rev., 117, 1006–1015, 1989. 
Short summary
Upper-level fronts are often associated with the rapid transport of stratospheric air to the lower troposphere, leading to significantly enhanced ozone concentrations. This paper considers the multi-scale nature that is needed to bring stratospheric air down to the surface. The final transport step to the surface can be related to frontal zones and the associated vertical winds or to near-horizontal tracer transport followed by entrainment into a growing planetary boundary layer.
Final-revised paper