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Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union
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Volume 24, issue 2
Nonlin. Processes Geophys., 24, 265–278, 2017
https://doi.org/10.5194/npg-24-265-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Current perspectives in modelling, monitoring, and predicting...

Nonlin. Processes Geophys., 24, 265–278, 2017
https://doi.org/10.5194/npg-24-265-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 09 Jun 2017

Research article | 09 Jun 2017

A simple kinematic model for the Lagrangian description of relevant nonlinear processes in the stratospheric polar vortex

Víctor José García-Garrido et al.

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Cited articles

Allen, D. R., Bevilacqua, R. M., Nedoluha, G. E., Randall, C. E., and Manney, G. L.: Unusual stratospheric transport and mixing during the 2002 Antarctic winter, Geophys. Res. Lett., 30, 1599, https://doi.org/10.1029/2003GL017117, 2003.
Aurell, E., Boffeta, G., Crisanti, A., Paladin, G., and Vulpiani, A.: Predictability in the large: An extension of the concept of Lyapunov exponent, J. Phys. A, 30, 1–26, 1997.
Bower, A. S.: A simple kinematic mechanism for mixing fluid parcels across a menadering jet, J. Phys. Oceanogr., 21, 173–180, 1991.
Bowman, K. P.: Large-scale isentropic mixing properties of the Antarctic polar vortex from analyzed winds, J. Geophys. Res., 98, 23013–23027, https://doi.org/10.1029/93JD02599, 1993.
Bowman, K. P.: Rossby Wave Phase Speeds and Mixing Barriers in the Stratosphere. Part I: Observations, J. Atmos. Sci., 53, 905–916, 1996.
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Short summary
Our work shows that a simple kinematic model is able to retain the fundamental mechanisms responsible for complex fluid parcel evolution in the stratosphere. Our analysis justifies in a controlled manner the formation of filaments eroding the polar vortex and shows that the breaking and splitting of the polar vortex is explained by the sudden growth of a planetary wave and the decay of the axisymmetric flow.
Our work shows that a simple kinematic model is able to retain the fundamental mechanisms...
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