North-Atlantic dynamics and European temperature extremes in the IPSL model: Sensitivity to atmospheric resolution

The variability of the European climate is mostly controlled by the unstable nature of the North-Atlantic dynamics, especially in wintertime. The intra-seasonal to inter-annual fluctuations of atmospheric circulations has often been described as the alternation between a limited number of preferenti...

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Tipo de recurso:
Fecha de publicación:
2012
Institución:
Universidad del Rosario
Repositorio:
Repositorio EdocUR - U. Rosario
Idioma:
eng
OAI Identifier:
oai:repository.urosario.edu.co:10336/25897
Acceso en línea:
https://doi.org/10.1007/s00382-012-1529-3
https://repository.urosario.edu.co/handle/10336/25897
Palabra clave:
European climate
inter-annual fluctuations
atmospheric circulations
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id EDOCUR2_fa9e0e630b03b81d2803dfde5cf8c83b
oai_identifier_str oai:repository.urosario.edu.co:10336/25897
network_acronym_str EDOCUR2
network_name_str Repositorio EdocUR - U. Rosario
repository_id_str
spelling 7e6632cb-f629-4169-a66d-045d182a9621-1829721600c89efb21-b0f4-4618-b1eb-32154a61cf72-195ebe120-233b-4b03-bf97-fdef2cf05ba4-1c58dc760-fafa-40f2-b8a3-d3c4d443c59b-105a8024d-71d5-416f-a813-0be7b8f0e283-12020-08-06T16:20:09Z2020-08-06T16:20:09Z2012-09-27The variability of the European climate is mostly controlled by the unstable nature of the North-Atlantic dynamics, especially in wintertime. The intra-seasonal to inter-annual fluctuations of atmospheric circulations has often been described as the alternation between a limited number of preferential weather regimes. Such discrete description can be justified by the multi-modality of the latitudinal position of the jet stream. In addition, seasonal extremes in European temperatures are generally associated with an exceptional persistence into one weather regime. Here we investigate the skill of the IPSL model to both simulate North-Atlantic weather regimes and European temperature extremes, including summer heat waves and winter cold spells. We use a set of eight IPSL experiments, with six different horizontal resolutions and the two versions used in CMIP3 and CMIP5. We find that despite a substantial deficit in the simulated poleward peak of the jet stream, the IPSL model represents weather regimes fairly well. A significant improvement is found for all horizontal resolutions higher than the one used in CMIP3, while the increase in vertical resolution included in the CMIP5 version tends to improve the wintertime dynamics. In addition to a recurrent cold bias over Europe, the IPSL model generally overestimates (underestimates) the indices of winter cold spells (summer heat waves) such as frequencies or durations. We find that the increase in horizontal resolution almost always improves these statistics, while the influence of vertical resolution is less clear. Overall, the CMIP5 version of the IPSL model appears to carry promising improvements in the simulation of the European climate variability.application/pdfhttps://doi.org/10.1007/s00382-012-1529-3ISSN: 0930-7575EISSN: 1432-0894https://repository.urosario.edu.co/handle/10336/25897engSpringer Nature2310No. 402293Climate DynamicsClimate Dynamics, ISSN:0930-7575;EISSN:1432-0894, No.40 (2013);pp.2293-2310https://link.springer.com/article/10.1007%2Fs00382-012-1529-3Restringido (Acceso a grupos específicos)http://purl.org/coar/access_right/c_16ecClimate Dynamicsinstname:Universidad del Rosarioreponame:Repositorio Institucional EdocUREuropean climateinter-annual fluctuationsatmospheric circulationsNorth-Atlantic dynamics and European temperature extremes in the IPSL model: Sensitivity to atmospheric resolutionDinámica del Atlántico Norte y temperaturas extremas europeas en el modelo IPSL: sensibilidad a la resolución atmosféricaarticleArtículohttp://purl.org/coar/version/c_970fb48d4fbd8a85http://purl.org/coar/resource_type/c_6501Cattiaux,JulienQuesada, Benjamín RaphaelArakélian,AraCordon, FrancisVautard,RobertYiou,Pascal10336/25897oai:repository.urosario.edu.co:10336/258972021-06-03 00:50:20.335https://repository.urosario.edu.coRepositorio institucional EdocURedocur@urosario.edu.co
dc.title.spa.fl_str_mv North-Atlantic dynamics and European temperature extremes in the IPSL model: Sensitivity to atmospheric resolution
dc.title.TranslatedTitle.spa.fl_str_mv Dinámica del Atlántico Norte y temperaturas extremas europeas en el modelo IPSL: sensibilidad a la resolución atmosférica
title North-Atlantic dynamics and European temperature extremes in the IPSL model: Sensitivity to atmospheric resolution
spellingShingle North-Atlantic dynamics and European temperature extremes in the IPSL model: Sensitivity to atmospheric resolution
European climate
inter-annual fluctuations
atmospheric circulations
title_short North-Atlantic dynamics and European temperature extremes in the IPSL model: Sensitivity to atmospheric resolution
title_full North-Atlantic dynamics and European temperature extremes in the IPSL model: Sensitivity to atmospheric resolution
title_fullStr North-Atlantic dynamics and European temperature extremes in the IPSL model: Sensitivity to atmospheric resolution
title_full_unstemmed North-Atlantic dynamics and European temperature extremes in the IPSL model: Sensitivity to atmospheric resolution
title_sort North-Atlantic dynamics and European temperature extremes in the IPSL model: Sensitivity to atmospheric resolution
dc.subject.keyword.spa.fl_str_mv European climate
inter-annual fluctuations
atmospheric circulations
topic European climate
inter-annual fluctuations
atmospheric circulations
description The variability of the European climate is mostly controlled by the unstable nature of the North-Atlantic dynamics, especially in wintertime. The intra-seasonal to inter-annual fluctuations of atmospheric circulations has often been described as the alternation between a limited number of preferential weather regimes. Such discrete description can be justified by the multi-modality of the latitudinal position of the jet stream. In addition, seasonal extremes in European temperatures are generally associated with an exceptional persistence into one weather regime. Here we investigate the skill of the IPSL model to both simulate North-Atlantic weather regimes and European temperature extremes, including summer heat waves and winter cold spells. We use a set of eight IPSL experiments, with six different horizontal resolutions and the two versions used in CMIP3 and CMIP5. We find that despite a substantial deficit in the simulated poleward peak of the jet stream, the IPSL model represents weather regimes fairly well. A significant improvement is found for all horizontal resolutions higher than the one used in CMIP3, while the increase in vertical resolution included in the CMIP5 version tends to improve the wintertime dynamics. In addition to a recurrent cold bias over Europe, the IPSL model generally overestimates (underestimates) the indices of winter cold spells (summer heat waves) such as frequencies or durations. We find that the increase in horizontal resolution almost always improves these statistics, while the influence of vertical resolution is less clear. Overall, the CMIP5 version of the IPSL model appears to carry promising improvements in the simulation of the European climate variability.
publishDate 2012
dc.date.created.spa.fl_str_mv 2012-09-27
dc.date.accessioned.none.fl_str_mv 2020-08-06T16:20:09Z
dc.date.available.none.fl_str_mv 2020-08-06T16:20:09Z
dc.type.eng.fl_str_mv article
dc.type.coarversion.fl_str_mv http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_6501
dc.type.spa.spa.fl_str_mv Artículo
dc.identifier.doi.none.fl_str_mv https://doi.org/10.1007/s00382-012-1529-3
dc.identifier.issn.none.fl_str_mv ISSN: 0930-7575
EISSN: 1432-0894
dc.identifier.uri.none.fl_str_mv https://repository.urosario.edu.co/handle/10336/25897
url https://doi.org/10.1007/s00382-012-1529-3
https://repository.urosario.edu.co/handle/10336/25897
identifier_str_mv ISSN: 0930-7575
EISSN: 1432-0894
dc.language.iso.spa.fl_str_mv eng
language eng
dc.relation.citationEndPage.none.fl_str_mv 2310
dc.relation.citationIssue.none.fl_str_mv No. 40
dc.relation.citationStartPage.none.fl_str_mv 2293
dc.relation.citationTitle.none.fl_str_mv Climate Dynamics
dc.relation.ispartof.spa.fl_str_mv Climate Dynamics, ISSN:0930-7575;EISSN:1432-0894, No.40 (2013);pp.2293-2310
dc.relation.uri.spa.fl_str_mv https://link.springer.com/article/10.1007%2Fs00382-012-1529-3
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_16ec
dc.rights.acceso.spa.fl_str_mv Restringido (Acceso a grupos específicos)
rights_invalid_str_mv Restringido (Acceso a grupos específicos)
http://purl.org/coar/access_right/c_16ec
dc.format.mimetype.none.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Springer Nature
dc.source.spa.fl_str_mv Climate Dynamics
institution Universidad del Rosario
dc.source.instname.none.fl_str_mv instname:Universidad del Rosario
dc.source.reponame.none.fl_str_mv reponame:Repositorio Institucional EdocUR
repository.name.fl_str_mv Repositorio institucional EdocUR
repository.mail.fl_str_mv edocur@urosario.edu.co
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