Atmospheric teleconnection patterns and eddy kinetic energy content: wavelet analysis
International audience 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...
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ftccsdartic:oai:HAL:hal-00302333v1 2023-11-12T04:21:49+01:00 Atmospheric teleconnection patterns and eddy kinetic energy content: wavelet analysis Khokhlov, V. N. Glushkov, A. V. Tsenenko, I. A. Odessa Hydrometeorological Institute (OHMI) Innovative Geosciences Research Centre and Institute of Applied Mathematics 2004-06-18 https://hal.science/hal-00302333 https://hal.science/hal-00302333/document https://hal.science/hal-00302333/file/npg-11-295-2004.pdf en eng HAL CCSD European Geosciences Union (EGU) hal-00302333 https://hal.science/hal-00302333 https://hal.science/hal-00302333/document https://hal.science/hal-00302333/file/npg-11-295-2004.pdf info:eu-repo/semantics/OpenAccess ISSN: 1023-5809 EISSN: 1607-7946 Nonlinear Processes in Geophysics https://hal.science/hal-00302333 Nonlinear Processes in Geophysics, 2004, 11 (3), pp.295-301 [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2004 ftccsdartic 2023-10-21T23:12:23Z International audience 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. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Khokhlov, V. N. Glushkov, A. V. Tsenenko, I. A. Atmospheric teleconnection patterns and eddy kinetic energy content: wavelet analysis |
topic_facet |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience 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. |
author2 |
Odessa Hydrometeorological Institute (OHMI) Innovative Geosciences Research Centre and Institute of Applied Mathematics |
format |
Article in Journal/Newspaper |
author |
Khokhlov, V. N. Glushkov, A. V. Tsenenko, I. A. |
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 |
publisher |
HAL CCSD |
publishDate |
2004 |
url |
https://hal.science/hal-00302333 https://hal.science/hal-00302333/document https://hal.science/hal-00302333/file/npg-11-295-2004.pdf |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 1023-5809 EISSN: 1607-7946 Nonlinear Processes in Geophysics https://hal.science/hal-00302333 Nonlinear Processes in Geophysics, 2004, 11 (3), pp.295-301 |
op_relation |
hal-00302333 https://hal.science/hal-00302333 https://hal.science/hal-00302333/document https://hal.science/hal-00302333/file/npg-11-295-2004.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782337062371852288 |