Particle relabelling symmetries and Noether's theorem for vertical slice models

Cotter Colin J.; Cullen Michael John Priestley

doi:10.3934/jgm.2019007

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2019, Volume 11, Issue 2: 139-151. Doi: 10.3934/jgm.2019007 open access

This issue Previous Article Infinite dimensional integrals and partial differential equations for stochastic and quantum phenomena Next Article Euler-Lagrangian approach to 3D stochastic Euler equations

Particle relabelling symmetries and Noether's theorem for vertical slice models

Cotter Colin J.^1, , and
Cullen Michael John Priestley^2,

1.
Department of Mathematics, Imperial College London, London, SW7 2AZ, UK
2.
Met Office, FitzRoy Road, Exeter, Devon, EX1 3PB, UK

^* Corresponding author: C. J. Cotter
^* Corresponding author: C. J. Cotter

CJC is supported by NERC grant NE/K012533/1.
Michael John Priestley Cullen's contribution is Crown Copyright.

Received: November 30, 2017

Revised: June 30, 2018

Published: May 2019

This paper entilted "Particle relabelling symmetries and Noether's theorem for vertical slice models" is licensed under a Creative Commons Attribution 3.0 Unported License. See http://creativecommons.org/licenses/by/3.0/

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Abstract

We consider the variational formulation for vertical slice models introduced in Cotter and Holm (Proc Roy Soc, 2013). These models have a Kelvin circulation theorem that holds on all materially-transported closed loops, not just those loops on isosurfaces of potential temperature. Potential vorticity conservation can be derived directly from this circulation theorem. In this paper, we show that this property is due to these models having a relabelling symmetry for every single diffeomorphism of the vertical slice that preserves the density, not just those diffeomorphisms that preserve the potential temperature. This is developed using the methodology of Cotter and Holm (Foundations of Computational Mathematics, 2012).

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Mathematics Subject Classification: Primary: 35Q35, 37K05.

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References

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