Dörffel, T. and Papke, A. and Klein, R. and Smolarkiewicz, P.
(2017)
*Intensification of tilted atmospheric vortices by asymmetric diabatic heating.*
SFB 1114 Preprint in arXiv:1708.07674
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pp. 1-22.
(Submitted)

Full text not available from this repository.

Official URL: https://arxiv.org/abs/1708.07674

## Abstract

Päschke et al. (JFM, 701, 137{170 (2012)) studied the nonlinear dynamics of strongly tilted vortices subject to asymmetric diabatic heating by asymptotic methods. They found, i.a., that an azimuthal Fourier mode 1 heating pattern can intensify or attenuate such a vortex depending on the relative orientation of tilt and heating asymmetries. The theory originally addressed the gradient wind regime which, asymptotically speaking, corresponds to vortex Rossby numbers of order O(1) in the limit. Formally, this restricts the appicability of the theory to rather weak vortices in the near equatorial region. It is shown below that said theory is, in contrast, uniformly valid for vanishing Coriolis parameter and thus applicable to vortices up to hurricane strength. The paper's main contribution is a series of three-dimensional numerical simulations which fully support the analytical predictions.

Item Type: | Article |
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Subjects: | Mathematical and Computer Sciences > Mathematics > Applied Mathematics |

Divisions: | Department of Mathematics and Computer Science > Institute of Mathematics > Geophysical Fluid Dynamics Group |

ID Code: | 2099 |

Deposited By: | Silvia Hoemke |

Deposited On: | 25 Aug 2017 12:27 |

Last Modified: | 30 Aug 2017 12:55 |

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