Atmospheric teleconnection patterns and eddy kinetic energy content: wavelet analysis
In this paper, we employ a non-decimated wavelet decomposition to analyse long-term variations of the teleconnection pattern monthly indices (the North Atlantic Oscillation and the Southern Oscillation) and the relationship of these variations with eddy kinetic energy contents ( K E ) in the atmosph...
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ftcopernicus:oai:publications.copernicus.org:npg33166 2023-05-15T17:28:20+02:00 Atmospheric teleconnection patterns and eddy kinetic energy content: wavelet analysis Khokhlov, V. N. Glushkov, A. V. Tsenenko, I. A. 2018-01-15 application/pdf https://doi.org/10.5194/npg-11-295-2004 https://npg.copernicus.org/articles/11/295/2004/ eng eng doi:10.5194/npg-11-295-2004 https://npg.copernicus.org/articles/11/295/2004/ eISSN: 1607-7946 Text 2018 ftcopernicus https://doi.org/10.5194/npg-11-295-2004 2020-07-20T16:27:36Z In this paper, we employ a non-decimated wavelet decomposition to analyse long-term variations of the teleconnection pattern monthly indices (the North Atlantic Oscillation and the Southern Oscillation) and the relationship of these variations with eddy kinetic energy contents ( K E ) in the atmosphere of mid-latitudes and tropics. Major advantage of using this tool is to isolate short- and long-term components of fluctuations. Such analysis allows revealing basic periodic behaviours for the North Atlantic Oscillations (NAO) indices such as the 4-8-year and the natural change of dominant phase. The main results can be posed as follows. First, if the phases of North Atlantic and Southern Oscillations vary synchronously with the 4-8-year period then the relationship between the variations of the NAO indices and the K E contents is the most appreciable. Second, if the NAO phase tends to abrupt changes then the impact of these variations on the eddy kinetic energy contents in both mid-latitudes and tropics is more significant than for the durational dominance of certain phase. Text North Atlantic North Atlantic oscillation Copernicus Publications: E-Journals Nonlinear Processes in Geophysics 11 3 295 301 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
In this paper, we employ a non-decimated wavelet decomposition to analyse long-term variations of the teleconnection pattern monthly indices (the North Atlantic Oscillation and the Southern Oscillation) and the relationship of these variations with eddy kinetic energy contents ( K E ) in the atmosphere of mid-latitudes and tropics. Major advantage of using this tool is to isolate short- and long-term components of fluctuations. Such analysis allows revealing basic periodic behaviours for the North Atlantic Oscillations (NAO) indices such as the 4-8-year and the natural change of dominant phase. The main results can be posed as follows. First, if the phases of North Atlantic and Southern Oscillations vary synchronously with the 4-8-year period then the relationship between the variations of the NAO indices and the K E contents is the most appreciable. Second, if the NAO phase tends to abrupt changes then the impact of these variations on the eddy kinetic energy contents in both mid-latitudes and tropics is more significant than for the durational dominance of certain phase. |
format |
Text |
author |
Khokhlov, V. N. Glushkov, A. V. Tsenenko, I. A. |
spellingShingle |
Khokhlov, V. N. Glushkov, A. V. Tsenenko, I. A. Atmospheric teleconnection patterns and eddy kinetic energy content: wavelet analysis |
author_facet |
Khokhlov, V. N. Glushkov, A. V. Tsenenko, I. A. |
author_sort |
Khokhlov, V. N. |
title |
Atmospheric teleconnection patterns and eddy kinetic energy content: wavelet analysis |
title_short |
Atmospheric teleconnection patterns and eddy kinetic energy content: wavelet analysis |
title_full |
Atmospheric teleconnection patterns and eddy kinetic energy content: wavelet analysis |
title_fullStr |
Atmospheric teleconnection patterns and eddy kinetic energy content: wavelet analysis |
title_full_unstemmed |
Atmospheric teleconnection patterns and eddy kinetic energy content: wavelet analysis |
title_sort |
atmospheric teleconnection patterns and eddy kinetic energy content: wavelet analysis |
publishDate |
2018 |
url |
https://doi.org/10.5194/npg-11-295-2004 https://npg.copernicus.org/articles/11/295/2004/ |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
eISSN: 1607-7946 |
op_relation |
doi:10.5194/npg-11-295-2004 https://npg.copernicus.org/articles/11/295/2004/ |
op_doi |
https://doi.org/10.5194/npg-11-295-2004 |
container_title |
Nonlinear Processes in Geophysics |
container_volume |
11 |
container_issue |
3 |
container_start_page |
295 |
op_container_end_page |
301 |
_version_ |
1766120959101632512 |