Regional atmospheric influence on the Chandler wobble
International audience From the maps of regional contribution to atmospheric angular momentum (AAM) over the period 1948-2011 (NCEP/NCAR reanalysis data) time domain excitation in Chandler frequency band was extracted by Panteleev's filtering method. This permits us to investigate the evolution...
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Online Access: | https://hal.science/hal-02449123 https://doi.org/10.1016/j.asr.2014.12.013 |
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ftinsu:oai:HAL:hal-02449123v1 2024-04-14T08:15:44+00:00 Regional atmospheric influence on the Chandler wobble Zotov, L.V. Bizouard, C. Systèmes de Référence Temps Espace (SYRTE) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) 2015-03 https://hal.science/hal-02449123 https://doi.org/10.1016/j.asr.2014.12.013 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.asr.2014.12.013 hal-02449123 https://hal.science/hal-02449123 BIBCODE: 2015AdSpR.55.1300Z doi:10.1016/j.asr.2014.12.013 ISSN: 0273-1177 Advances in Space Research https://hal.science/hal-02449123 Advances in Space Research, 2015, 55 (5), pp.1300-1306. ⟨10.1016/j.asr.2014.12.013⟩ [SDU]Sciences of the Universe [physics] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] info:eu-repo/semantics/article Journal articles 2015 ftinsu https://doi.org/10.1016/j.asr.2014.12.013 2024-03-21T17:20:01Z International audience From the maps of regional contribution to atmospheric angular momentum (AAM) over the period 1948-2011 (NCEP/NCAR reanalysis data) time domain excitation in Chandler frequency band was extracted by Panteleev's filtering method. This permits us to investigate the evolution of the regional atmospheric influence on Chandler wobble. It appears that the temperate latitudes bring the strongest inputs. For pressure term they are limited to continents, and highlight the role of Europe. For the wind term they mostly result from ocean area, encompassing in particular North Atlantic. A quasi-20 year cycle is found in the regional patterns of the atmospheric excitation. The integrated AAM is finally compared with the geodetic excitation reconstructed from the observed polar motion. Article in Journal/Newspaper North Atlantic Institut national des sciences de l'Univers: HAL-INSU Chandler ENVELOPE(-59.682,-59.682,-64.490,-64.490) Advances in Space Research 55 5 1300 1306 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] |
spellingShingle |
[SDU]Sciences of the Universe [physics] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] Zotov, L.V. Bizouard, C. Regional atmospheric influence on the Chandler wobble |
topic_facet |
[SDU]Sciences of the Universe [physics] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] |
description |
International audience From the maps of regional contribution to atmospheric angular momentum (AAM) over the period 1948-2011 (NCEP/NCAR reanalysis data) time domain excitation in Chandler frequency band was extracted by Panteleev's filtering method. This permits us to investigate the evolution of the regional atmospheric influence on Chandler wobble. It appears that the temperate latitudes bring the strongest inputs. For pressure term they are limited to continents, and highlight the role of Europe. For the wind term they mostly result from ocean area, encompassing in particular North Atlantic. A quasi-20 year cycle is found in the regional patterns of the atmospheric excitation. The integrated AAM is finally compared with the geodetic excitation reconstructed from the observed polar motion. |
author2 |
Systèmes de Référence Temps Espace (SYRTE) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Zotov, L.V. Bizouard, C. |
author_facet |
Zotov, L.V. Bizouard, C. |
author_sort |
Zotov, L.V. |
title |
Regional atmospheric influence on the Chandler wobble |
title_short |
Regional atmospheric influence on the Chandler wobble |
title_full |
Regional atmospheric influence on the Chandler wobble |
title_fullStr |
Regional atmospheric influence on the Chandler wobble |
title_full_unstemmed |
Regional atmospheric influence on the Chandler wobble |
title_sort |
regional atmospheric influence on the chandler wobble |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal.science/hal-02449123 https://doi.org/10.1016/j.asr.2014.12.013 |
long_lat |
ENVELOPE(-59.682,-59.682,-64.490,-64.490) |
geographic |
Chandler |
geographic_facet |
Chandler |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 0273-1177 Advances in Space Research https://hal.science/hal-02449123 Advances in Space Research, 2015, 55 (5), pp.1300-1306. ⟨10.1016/j.asr.2014.12.013⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.asr.2014.12.013 hal-02449123 https://hal.science/hal-02449123 BIBCODE: 2015AdSpR.55.1300Z doi:10.1016/j.asr.2014.12.013 |
op_doi |
https://doi.org/10.1016/j.asr.2014.12.013 |
container_title |
Advances in Space Research |
container_volume |
55 |
container_issue |
5 |
container_start_page |
1300 |
op_container_end_page |
1306 |
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1796314153480093696 |