Northern Hemisphere Storm Tracks in Present Day and Last Glacial Maximum Climate Simulations: A Comparison of the European PMIP Models*
International audience Extratropical weather systems are an essential feature of the midlatitude climate and global circulation. At the last glacial maximum (LGM), the formation of regions of high transient activity, referred to as `storm tracks,' is strongly affected by the presence of large i...
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Other Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
1999
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Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-02931782 https://hal.archives-ouvertes.fr/hal-02931782/document https://hal.archives-ouvertes.fr/hal-02931782/file/%5B15200442%20-%20Journal%20of%20Climate%5D%20Northern%20Hemisphere%20Storm%20Tracks%20in%20Present%20Day%20and%20Last%20Glacial%20Maximum%20Climate%20Simulations%20A%20Comparison%20of%20the%20European%20PMIP%20Models.pdf https://doi.org/10.1175/1520-0442(1999)012<0742:NHSTIP>2.0.CO;2 |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Kageyama, M. Valdes, P. J. Ramstein, G. Hewitt, C. Wyputta, U. Northern Hemisphere Storm Tracks in Present Day and Last Glacial Maximum Climate Simulations: A Comparison of the European PMIP Models* |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Extratropical weather systems are an essential feature of the midlatitude climate and global circulation. At the last glacial maximum (LGM), the formation of regions of high transient activity, referred to as `storm tracks,' is strongly affected by the presence of large ice sheets over northern America and Scandinavia and by differences in sea surface temperature (SST) distributions. In the framework of the Palaeoclimate Modelling Intercomparison Project, simulations of the LGM climate have been run with a wide range of atmospheric general circulation models (AGCMs) using the same set of boundary conditions, allowing a valuable comparison between simulations of a climate very different from the present one.In this study, the authors focus on the storm track representation in the models and its relationship with the surface temperatures, the mean flow, and the precipitation. Storm tracks are described using transient eddy diagnostics such as mean sea level pressure variance and three-dimensional E vectors, computed from daily output. It is found that the general response to the changes in boundary conditions from present day to LGM is consistent for all models: they nearly all give an eastward shift for both storm tracks, with a larger shift for the Atlantic one. This is intrinsically linked to changes in stationary waves, which is also studied using the E vector diagnostic. Differences between the models reside in the value of the shift of the storm tracks and the change in their amplitude, which the authors analyze in terms of differences in resolution and parameterizations in the models. The sensitivity of the storm tracks to the sea surface temperatures and sea-ice extent are also examined by comparing the differences between prescribed and computed SST simulations. All in all, it is the eastern part of the storm tracks that is found to be most model-dependent, which relates to differences in the simulated climates over America's west coast and Europe, and has to be taken into account ... |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Modélisation du climat (CLIM) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) School of Geographical Sciences Bristol University of Bristol Bristol Met Office Hadley Centre for Climate Change (MOHC) United Kingdom Met Office Exeter University of Bremen |
format |
Article in Journal/Newspaper |
author |
Kageyama, M. Valdes, P. J. Ramstein, G. Hewitt, C. Wyputta, U. |
author_facet |
Kageyama, M. Valdes, P. J. Ramstein, G. Hewitt, C. Wyputta, U. |
author_sort |
Kageyama, M. |
title |
Northern Hemisphere Storm Tracks in Present Day and Last Glacial Maximum Climate Simulations: A Comparison of the European PMIP Models* |
title_short |
Northern Hemisphere Storm Tracks in Present Day and Last Glacial Maximum Climate Simulations: A Comparison of the European PMIP Models* |
title_full |
Northern Hemisphere Storm Tracks in Present Day and Last Glacial Maximum Climate Simulations: A Comparison of the European PMIP Models* |
title_fullStr |
Northern Hemisphere Storm Tracks in Present Day and Last Glacial Maximum Climate Simulations: A Comparison of the European PMIP Models* |
title_full_unstemmed |
Northern Hemisphere Storm Tracks in Present Day and Last Glacial Maximum Climate Simulations: A Comparison of the European PMIP Models* |
title_sort |
northern hemisphere storm tracks in present day and last glacial maximum climate simulations: a comparison of the european pmip models* |
publisher |
HAL CCSD |
publishDate |
1999 |
url |
https://hal.archives-ouvertes.fr/hal-02931782 https://hal.archives-ouvertes.fr/hal-02931782/document https://hal.archives-ouvertes.fr/hal-02931782/file/%5B15200442%20-%20Journal%20of%20Climate%5D%20Northern%20Hemisphere%20Storm%20Tracks%20in%20Present%20Day%20and%20Last%20Glacial%20Maximum%20Climate%20Simulations%20A%20Comparison%20of%20the%20European%20PMIP%20Models.pdf https://doi.org/10.1175/1520-0442(1999)012<0742:NHSTIP>2.0.CO;2 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
ISSN: 0894-8755 EISSN: 1520-0442 Journal of Climate https://hal.archives-ouvertes.fr/hal-02931782 Journal of Climate, American Meteorological Society, 1999, 12 (3), pp.742-760. ⟨10.1175/1520-0442(1999)0122.0.CO;2⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1175/1520-0442(1999)012<0742:NHSTIP>2.0.CO;2 hal-02931782 https://hal.archives-ouvertes.fr/hal-02931782 https://hal.archives-ouvertes.fr/hal-02931782/document https://hal.archives-ouvertes.fr/hal-02931782/file/%5B15200442%20-%20Journal%20of%20Climate%5D%20Northern%20Hemisphere%20Storm%20Tracks%20in%20Present%20Day%20and%20Last%20Glacial%20Maximum%20Climate%20Simulations%20A%20Comparison%20of%20the%20European%20PMIP%20Models.pdf doi:10.1175/1520-0442(1999)012<0742:NHSTIP>2.0.CO;2 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1175/1520-0442(1999)012<0742:NHSTIP>2.0.CO;2 https://doi.org/10.1175/1520-0442(1999)0122.0.CO;2 |
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1766195721910878208 |
spelling |
ftccsdartic:oai:HAL:hal-02931782v1 2023-05-15T18:18:57+02:00 Northern Hemisphere Storm Tracks in Present Day and Last Glacial Maximum Climate Simulations: A Comparison of the European PMIP Models* Kageyama, M. Valdes, P. J. Ramstein, G. Hewitt, C. Wyputta, U. Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Modélisation du climat (CLIM) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) School of Geographical Sciences Bristol University of Bristol Bristol Met Office Hadley Centre for Climate Change (MOHC) United Kingdom Met Office Exeter University of Bremen 1999-03 https://hal.archives-ouvertes.fr/hal-02931782 https://hal.archives-ouvertes.fr/hal-02931782/document https://hal.archives-ouvertes.fr/hal-02931782/file/%5B15200442%20-%20Journal%20of%20Climate%5D%20Northern%20Hemisphere%20Storm%20Tracks%20in%20Present%20Day%20and%20Last%20Glacial%20Maximum%20Climate%20Simulations%20A%20Comparison%20of%20the%20European%20PMIP%20Models.pdf https://doi.org/10.1175/1520-0442(1999)012<0742:NHSTIP>2.0.CO;2 en eng HAL CCSD American Meteorological Society info:eu-repo/semantics/altIdentifier/doi/10.1175/1520-0442(1999)012<0742:NHSTIP>2.0.CO;2 hal-02931782 https://hal.archives-ouvertes.fr/hal-02931782 https://hal.archives-ouvertes.fr/hal-02931782/document https://hal.archives-ouvertes.fr/hal-02931782/file/%5B15200442%20-%20Journal%20of%20Climate%5D%20Northern%20Hemisphere%20Storm%20Tracks%20in%20Present%20Day%20and%20Last%20Glacial%20Maximum%20Climate%20Simulations%20A%20Comparison%20of%20the%20European%20PMIP%20Models.pdf doi:10.1175/1520-0442(1999)012<0742:NHSTIP>2.0.CO;2 info:eu-repo/semantics/OpenAccess ISSN: 0894-8755 EISSN: 1520-0442 Journal of Climate https://hal.archives-ouvertes.fr/hal-02931782 Journal of Climate, American Meteorological Society, 1999, 12 (3), pp.742-760. ⟨10.1175/1520-0442(1999)0122.0.CO;2⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 1999 ftccsdartic https://doi.org/10.1175/1520-0442(1999)012<0742:NHSTIP>2.0.CO;2 https://doi.org/10.1175/1520-0442(1999)0122.0.CO;2 2021-12-19T00:30:54Z International audience Extratropical weather systems are an essential feature of the midlatitude climate and global circulation. At the last glacial maximum (LGM), the formation of regions of high transient activity, referred to as `storm tracks,' is strongly affected by the presence of large ice sheets over northern America and Scandinavia and by differences in sea surface temperature (SST) distributions. In the framework of the Palaeoclimate Modelling Intercomparison Project, simulations of the LGM climate have been run with a wide range of atmospheric general circulation models (AGCMs) using the same set of boundary conditions, allowing a valuable comparison between simulations of a climate very different from the present one.In this study, the authors focus on the storm track representation in the models and its relationship with the surface temperatures, the mean flow, and the precipitation. Storm tracks are described using transient eddy diagnostics such as mean sea level pressure variance and three-dimensional E vectors, computed from daily output. It is found that the general response to the changes in boundary conditions from present day to LGM is consistent for all models: they nearly all give an eastward shift for both storm tracks, with a larger shift for the Atlantic one. This is intrinsically linked to changes in stationary waves, which is also studied using the E vector diagnostic. Differences between the models reside in the value of the shift of the storm tracks and the change in their amplitude, which the authors analyze in terms of differences in resolution and parameterizations in the models. The sensitivity of the storm tracks to the sea surface temperatures and sea-ice extent are also examined by comparing the differences between prescribed and computed SST simulations. All in all, it is the eastern part of the storm tracks that is found to be most model-dependent, which relates to differences in the simulated climates over America's west coast and Europe, and has to be taken into account ... Article in Journal/Newspaper Sea ice Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |