Inertia–gravity waves generated by near balanced flow in 2-layer shallow water turbulence on the β-plane

Using a fine resolution numerical model (4000<sup>2</sup> × 2 grid-points) of the two-layer shallow-water equations of the mid-latitude β-plane dynamics, it is shown that there is no sudden breakdown of balance in the turbulent enstrophy cascade but a faint and continuous...

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Main Author: A. Wirth
Format: Article
Language:English
Published: Copernicus Publications 2013-01-01
Series:Nonlinear Processes in Geophysics
Online Access:http://www.nonlin-processes-geophys.net/20/25/2013/npg-20-25-2013.pdf
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author A. Wirth
author_facet A. Wirth
author_sort A. Wirth
collection DOAJ
description Using a fine resolution numerical model (4000<sup>2</sup> × 2 grid-points) of the two-layer shallow-water equations of the mid-latitude β-plane dynamics, it is shown that there is no sudden breakdown of balance in the turbulent enstrophy cascade but a faint and continuous emission of inertia–gravity waves. The wave energy accumulates in the equator-ward region of the domain due to the Coriolis parameter depending on the latitude and dispersion relation of inertia–gravity waves.
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spelling doaj.art-bb456f7b74e54e3cba405c0eaa5c80d32022-12-21T22:36:41ZengCopernicus PublicationsNonlinear Processes in Geophysics1023-58091607-79462013-01-01201253410.5194/npg-20-25-2013Inertia–gravity waves generated by near balanced flow in 2-layer shallow water turbulence on the β-planeA. WirthUsing a fine resolution numerical model (4000<sup>2</sup> × 2 grid-points) of the two-layer shallow-water equations of the mid-latitude β-plane dynamics, it is shown that there is no sudden breakdown of balance in the turbulent enstrophy cascade but a faint and continuous emission of inertia–gravity waves. The wave energy accumulates in the equator-ward region of the domain due to the Coriolis parameter depending on the latitude and dispersion relation of inertia–gravity waves.http://www.nonlin-processes-geophys.net/20/25/2013/npg-20-25-2013.pdf
spellingShingle A. Wirth
Inertia–gravity waves generated by near balanced flow in 2-layer shallow water turbulence on the β-plane
Nonlinear Processes in Geophysics
title Inertia–gravity waves generated by near balanced flow in 2-layer shallow water turbulence on the β-plane
title_full Inertia–gravity waves generated by near balanced flow in 2-layer shallow water turbulence on the β-plane
title_fullStr Inertia–gravity waves generated by near balanced flow in 2-layer shallow water turbulence on the β-plane
title_full_unstemmed Inertia–gravity waves generated by near balanced flow in 2-layer shallow water turbulence on the β-plane
title_short Inertia–gravity waves generated by near balanced flow in 2-layer shallow water turbulence on the β-plane
title_sort inertia gravity waves generated by near balanced flow in 2 layer shallow water turbulence on the β plane
url http://www.nonlin-processes-geophys.net/20/25/2013/npg-20-25-2013.pdf
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