Amplitude and frequency of temperature extremes over the North Atlantic region
International audience Recent studies on extreme events have focused on the potential change of their intensity during the 20th century, but their frequency evolution has often been overlooked although its socioeconomic impact is equally important. This paper focuses on extreme events of high and lo...
Published in: | Geophysical Research Letters |
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Online Access: | https://hal.science/hal-03189825 https://hal.science/hal-03189825/document https://hal.science/hal-03189825/file/2005GL024251.pdf https://doi.org/10.1029/2005gl024251 |
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ftgroupeedf:oai:HAL:hal-03189825v1 2024-06-09T07:47:31+00:00 Amplitude and frequency of temperature extremes over the North Atlantic region Nogaj, M Yiou, P Parey, S Malek, F Naveau, P Extrèmes : Statistiques, Impacts et Régionalisation (ESTIMR) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) EDF (EDF) Laboratoire de Modélisation Stochastique et Statistique Université Paris-Sud - Paris 11 (UP11) 2006 https://hal.science/hal-03189825 https://hal.science/hal-03189825/document https://hal.science/hal-03189825/file/2005GL024251.pdf https://doi.org/10.1029/2005gl024251 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2005gl024251 hal-03189825 https://hal.science/hal-03189825 https://hal.science/hal-03189825/document https://hal.science/hal-03189825/file/2005GL024251.pdf doi:10.1029/2005gl024251 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03189825 Geophysical Research Letters, 2006, 33 (10), pp.L10801. ⟨10.1029/2005gl024251⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/article Journal articles 2006 ftgroupeedf https://doi.org/10.1029/2005gl024251 2024-05-16T14:10:35Z International audience Recent studies on extreme events have focused on the potential change of their intensity during the 20th century, but their frequency evolution has often been overlooked although its socioeconomic impact is equally important. This paper focuses on extreme events of high and low temperatures and their amplitude and frequency changes over the last 60 years in the North Atlantic (NA) region. We analyze the temporal evolution of the amplitude and frequency of extreme events through the parameters of an extreme value distribution applied to NCEP reanalysis for the winter and summer seasons. We examine the relation of the statistics of extremes with greenhouse gas forcing and an atmospheric circulation index and obtain a spatial distribution of the trends of those extreme parameters. We find that the frequency of warm extremes increases over most of the NA while their magnitude does not vary as systematically. Apart from the Labrador Sea and parts of Scandinavia, the features of winter cold extremes exhibit decreasing or no trends. Article in Journal/Newspaper Labrador Sea North Atlantic Portail HAL-EDF Geophysical Research Letters 33 10 |
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Portail HAL-EDF |
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ftgroupeedf |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
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[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Nogaj, M Yiou, P Parey, S Malek, F Naveau, P Amplitude and frequency of temperature extremes over the North Atlantic region |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
International audience Recent studies on extreme events have focused on the potential change of their intensity during the 20th century, but their frequency evolution has often been overlooked although its socioeconomic impact is equally important. This paper focuses on extreme events of high and low temperatures and their amplitude and frequency changes over the last 60 years in the North Atlantic (NA) region. We analyze the temporal evolution of the amplitude and frequency of extreme events through the parameters of an extreme value distribution applied to NCEP reanalysis for the winter and summer seasons. We examine the relation of the statistics of extremes with greenhouse gas forcing and an atmospheric circulation index and obtain a spatial distribution of the trends of those extreme parameters. We find that the frequency of warm extremes increases over most of the NA while their magnitude does not vary as systematically. Apart from the Labrador Sea and parts of Scandinavia, the features of winter cold extremes exhibit decreasing or no trends. |
author2 |
Extrèmes : Statistiques, Impacts et Régionalisation (ESTIMR) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) EDF (EDF) Laboratoire de Modélisation Stochastique et Statistique Université Paris-Sud - Paris 11 (UP11) |
format |
Article in Journal/Newspaper |
author |
Nogaj, M Yiou, P Parey, S Malek, F Naveau, P |
author_facet |
Nogaj, M Yiou, P Parey, S Malek, F Naveau, P |
author_sort |
Nogaj, M |
title |
Amplitude and frequency of temperature extremes over the North Atlantic region |
title_short |
Amplitude and frequency of temperature extremes over the North Atlantic region |
title_full |
Amplitude and frequency of temperature extremes over the North Atlantic region |
title_fullStr |
Amplitude and frequency of temperature extremes over the North Atlantic region |
title_full_unstemmed |
Amplitude and frequency of temperature extremes over the North Atlantic region |
title_sort |
amplitude and frequency of temperature extremes over the north atlantic region |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://hal.science/hal-03189825 https://hal.science/hal-03189825/document https://hal.science/hal-03189825/file/2005GL024251.pdf https://doi.org/10.1029/2005gl024251 |
genre |
Labrador Sea North Atlantic |
genre_facet |
Labrador Sea North Atlantic |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03189825 Geophysical Research Letters, 2006, 33 (10), pp.L10801. ⟨10.1029/2005gl024251⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2005gl024251 hal-03189825 https://hal.science/hal-03189825 https://hal.science/hal-03189825/document https://hal.science/hal-03189825/file/2005GL024251.pdf doi:10.1029/2005gl024251 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2005gl024251 |
container_title |
Geophysical Research Letters |
container_volume |
33 |
container_issue |
10 |
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1801378647521624064 |