Large-scale dynamical influence of a gravity wave generated over the Antarctic Peninsula – regional modelling and budget analysis
The case study of a mountain wave triggered by the Antarctic Peninsula on 6 October 2005, which has already been documented in the literature, is chosen here to quantify the associated gravity wave forcing on the large-scale flow, with a budget analysis of the horizontal wind components and horizont...
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ftdoajarticles:oai:doaj.org/article:56500b6b0f9e43b9a790626312d529d8 2023-05-15T13:38:09+02:00 Large-scale dynamical influence of a gravity wave generated over the Antarctic Peninsula – regional modelling and budget analysis JOEL Arnault 2013-03-01T00:00:00Z https://doi.org/10.3402/tellusa.v65i0.20254 https://doaj.org/article/56500b6b0f9e43b9a790626312d529d8 EN eng Stockholm University Press http://www.tellusa.net/index.php/tellusa/article/view/20254/pdf_1 https://doaj.org/toc/0280-6495 https://doaj.org/toc/1600-0870 doi:10.3402/tellusa.v65i0.20254 0280-6495 1600-0870 https://doaj.org/article/56500b6b0f9e43b9a790626312d529d8 Tellus: Series A, Dynamic Meteorology and Oceanography, Vol 65, Iss 0, Pp 1-24 (2013) atmospheric modelling budget analysis gravity wave momentum forcing turbulence Oceanography GC1-1581 Meteorology. Climatology QC851-999 article 2013 ftdoajarticles https://doi.org/10.3402/tellusa.v65i0.20254 2022-12-30T22:33:01Z The case study of a mountain wave triggered by the Antarctic Peninsula on 6 October 2005, which has already been documented in the literature, is chosen here to quantify the associated gravity wave forcing on the large-scale flow, with a budget analysis of the horizontal wind components and horizontal kinetic energy. In particular, a numerical simulation using the Weather Research and Forecasting (WRF) model is compared to a control simulation with flat orography to separate the contribution of the mountain wave from that of other synoptic processes of non-orographic origin. The so-called differential budgets of horizontal wind components and horizontal kinetic energy (after subtracting the results from the simulation without orography) are then averaged horizontally and vertically in the inner domain of the simulation to quantify the mountain wave dynamical influence at this scale. This allows for a quantitative analysis of the simulated mountain wave's dynamical influence, including the orographically induced pressure drag, the counterbalancing wave-induced vertical transport of momentum from the flow aloft, the momentum and energy exchanges with the outer flow at the lateral and upper boundaries, the effect of turbulent mixing, the dynamics associated with geostrophic re-adjustment of the inner flow, the deceleration of the inner flow, the secondary generation of an inertia–gravity wave and the so-called baroclinic conversion of energy between potential energy and kinetic energy. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Antarctic Peninsula Tellus A: Dynamic Meteorology and Oceanography 65 1 20254 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
atmospheric modelling budget analysis gravity wave momentum forcing turbulence Oceanography GC1-1581 Meteorology. Climatology QC851-999 |
spellingShingle |
atmospheric modelling budget analysis gravity wave momentum forcing turbulence Oceanography GC1-1581 Meteorology. Climatology QC851-999 JOEL Arnault Large-scale dynamical influence of a gravity wave generated over the Antarctic Peninsula – regional modelling and budget analysis |
topic_facet |
atmospheric modelling budget analysis gravity wave momentum forcing turbulence Oceanography GC1-1581 Meteorology. Climatology QC851-999 |
description |
The case study of a mountain wave triggered by the Antarctic Peninsula on 6 October 2005, which has already been documented in the literature, is chosen here to quantify the associated gravity wave forcing on the large-scale flow, with a budget analysis of the horizontal wind components and horizontal kinetic energy. In particular, a numerical simulation using the Weather Research and Forecasting (WRF) model is compared to a control simulation with flat orography to separate the contribution of the mountain wave from that of other synoptic processes of non-orographic origin. The so-called differential budgets of horizontal wind components and horizontal kinetic energy (after subtracting the results from the simulation without orography) are then averaged horizontally and vertically in the inner domain of the simulation to quantify the mountain wave dynamical influence at this scale. This allows for a quantitative analysis of the simulated mountain wave's dynamical influence, including the orographically induced pressure drag, the counterbalancing wave-induced vertical transport of momentum from the flow aloft, the momentum and energy exchanges with the outer flow at the lateral and upper boundaries, the effect of turbulent mixing, the dynamics associated with geostrophic re-adjustment of the inner flow, the deceleration of the inner flow, the secondary generation of an inertia–gravity wave and the so-called baroclinic conversion of energy between potential energy and kinetic energy. |
format |
Article in Journal/Newspaper |
author |
JOEL Arnault |
author_facet |
JOEL Arnault |
author_sort |
JOEL Arnault |
title |
Large-scale dynamical influence of a gravity wave generated over the Antarctic Peninsula – regional modelling and budget analysis |
title_short |
Large-scale dynamical influence of a gravity wave generated over the Antarctic Peninsula – regional modelling and budget analysis |
title_full |
Large-scale dynamical influence of a gravity wave generated over the Antarctic Peninsula – regional modelling and budget analysis |
title_fullStr |
Large-scale dynamical influence of a gravity wave generated over the Antarctic Peninsula – regional modelling and budget analysis |
title_full_unstemmed |
Large-scale dynamical influence of a gravity wave generated over the Antarctic Peninsula – regional modelling and budget analysis |
title_sort |
large-scale dynamical influence of a gravity wave generated over the antarctic peninsula – regional modelling and budget analysis |
publisher |
Stockholm University Press |
publishDate |
2013 |
url |
https://doi.org/10.3402/tellusa.v65i0.20254 https://doaj.org/article/56500b6b0f9e43b9a790626312d529d8 |
geographic |
Antarctic The Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_source |
Tellus: Series A, Dynamic Meteorology and Oceanography, Vol 65, Iss 0, Pp 1-24 (2013) |
op_relation |
http://www.tellusa.net/index.php/tellusa/article/view/20254/pdf_1 https://doaj.org/toc/0280-6495 https://doaj.org/toc/1600-0870 doi:10.3402/tellusa.v65i0.20254 0280-6495 1600-0870 https://doaj.org/article/56500b6b0f9e43b9a790626312d529d8 |
op_doi |
https://doi.org/10.3402/tellusa.v65i0.20254 |
container_title |
Tellus A: Dynamic Meteorology and Oceanography |
container_volume |
65 |
container_issue |
1 |
container_start_page |
20254 |
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1766101966437482496 |