On the forcing of planetary‐scale Rossby waves by Antarctica
Abstract The propagation of Rossby waves forced at high latitudes into middle and low latitudes is studied using the barotropic vorticity equation on the sphere. Ray tracing theory indicates that fundamental differences exist between the response of an atmosphere initialized with typical northern he...
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crwiley:10.1002/qj.49711448105 2024-06-02T07:57:03+00:00 On the forcing of planetary‐scale Rossby waves by Antarctica James, I. N. 1988 http://dx.doi.org/10.1002/qj.49711448105 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.49711448105 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.49711448105 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Quarterly Journal of the Royal Meteorological Society volume 114, issue 481, page 619-637 ISSN 0035-9009 1477-870X journal-article 1988 crwiley https://doi.org/10.1002/qj.49711448105 2024-05-03T10:58:21Z Abstract The propagation of Rossby waves forced at high latitudes into middle and low latitudes is studied using the barotropic vorticity equation on the sphere. Ray tracing theory indicates that fundamental differences exist between the response of an atmosphere initialized with typical northern hemisphere winter flow and typical southern hemisphere winter flow to such a forcing, with a substantial response more likely for the southern hemisphere case. Integrations with a fully nonlinear barotropic model confirm this suggestion and indicate that away from the local forcing region, linear theory provides a good description of the response. The most notable feature in the steady solutions is a split of the mid‐latitude jet close to New Zealand. The location of this split coincides well with a region where blocking is observed to be prevalent in the southern hemisphere. Article in Journal/Newspaper Antarc* Antarctica Wiley Online Library New Zealand Quarterly Journal of the Royal Meteorological Society 114 481 619 637 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract The propagation of Rossby waves forced at high latitudes into middle and low latitudes is studied using the barotropic vorticity equation on the sphere. Ray tracing theory indicates that fundamental differences exist between the response of an atmosphere initialized with typical northern hemisphere winter flow and typical southern hemisphere winter flow to such a forcing, with a substantial response more likely for the southern hemisphere case. Integrations with a fully nonlinear barotropic model confirm this suggestion and indicate that away from the local forcing region, linear theory provides a good description of the response. The most notable feature in the steady solutions is a split of the mid‐latitude jet close to New Zealand. The location of this split coincides well with a region where blocking is observed to be prevalent in the southern hemisphere. |
format |
Article in Journal/Newspaper |
author |
James, I. N. |
spellingShingle |
James, I. N. On the forcing of planetary‐scale Rossby waves by Antarctica |
author_facet |
James, I. N. |
author_sort |
James, I. N. |
title |
On the forcing of planetary‐scale Rossby waves by Antarctica |
title_short |
On the forcing of planetary‐scale Rossby waves by Antarctica |
title_full |
On the forcing of planetary‐scale Rossby waves by Antarctica |
title_fullStr |
On the forcing of planetary‐scale Rossby waves by Antarctica |
title_full_unstemmed |
On the forcing of planetary‐scale Rossby waves by Antarctica |
title_sort |
on the forcing of planetary‐scale rossby waves by antarctica |
publisher |
Wiley |
publishDate |
1988 |
url |
http://dx.doi.org/10.1002/qj.49711448105 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.49711448105 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.49711448105 |
geographic |
New Zealand |
geographic_facet |
New Zealand |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Quarterly Journal of the Royal Meteorological Society volume 114, issue 481, page 619-637 ISSN 0035-9009 1477-870X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/qj.49711448105 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
container_volume |
114 |
container_issue |
481 |
container_start_page |
619 |
op_container_end_page |
637 |
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1800738204236644352 |