Impact of ocean-atmosphere coupling on tropical cyclone activity in the variable-resolution ARPEGE GCM
International audience This study starts by investigating the impact of the configuration of the variable-resolution atmospheric grid on tropical cyclone (TC) activity. The French atmospheric general circulation model ARPEGE, the grid of which is rotated and stretched over the North Atlantic basin,...
Published in: | Climate Dynamics |
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Main Authors: | , , |
Other Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2012
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Online Access: | https://hal.science/hal-01006526 https://hal.science/hal-01006526/document https://hal.science/hal-01006526/file/Daloz2012.pdf https://doi.org/10.1007/s00382-012-1561-3 |
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ftutoulouse3hal:oai:HAL:hal-01006526v1 |
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openpolar |
institution |
Open Polar |
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Université Toulouse III - Paul Sabatier: HAL-UPS |
op_collection_id |
ftutoulouse3hal |
language |
English |
topic |
Tropical cyclone (TC) Ocean–atmosphere coupling Stretched Frequency of coupling African easterly wave (AEW) General circulation model (GCM) [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
spellingShingle |
Tropical cyclone (TC) Ocean–atmosphere coupling Stretched Frequency of coupling African easterly wave (AEW) General circulation model (GCM) [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Daloz, Anne Sophie Chauvin, Fabrice Roux, Frank Impact of ocean-atmosphere coupling on tropical cyclone activity in the variable-resolution ARPEGE GCM |
topic_facet |
Tropical cyclone (TC) Ocean–atmosphere coupling Stretched Frequency of coupling African easterly wave (AEW) General circulation model (GCM) [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
International audience This study starts by investigating the impact of the configuration of the variable-resolution atmospheric grid on tropical cyclone (TC) activity. The French atmospheric general circulation model ARPEGE, the grid of which is rotated and stretched over the North Atlantic basin, was used with prescribed sea surface temperatures. The study clearly shows that changing the position of the stretching pole strongly modifies the representation of TC activity over the North Atlantic basin. A pole in the centre of the North Atlantic basin provides the best representation of the TC activity for this region. In a second part, the variable-resolution climate model ARPEGE is coupled with the European oceanic global climate model NEMO in order to study the impact of ocean–atmosphere coupling on TC activity over the North Atlantic basin. Two pre-industrial runs, a coupled simulation and a simulation forced by the sea surface temperatures from the coupled one, are compared. The results show that the coupled simulation is more active in the Caribbean Sea and the Gulf of Mexico while the forced simulation is more active over eastern Florida and the eastern Atlantic. The difference in the distribution of TC activity is certainly linked with the location of TC genesis. In the forced simulation, tropical cyclogenesis is closer to the west African coast than in the coupled simulation. Moreover, the difference in TC activity over the eastern Atlantic seems to be related to two different mechanisms: the difference in African easterly wave activity over the west of Africa and the cooling produced, in the coupled simulation, by African easterly waves over the eastern Atlantic. Finally, the last part studies the impact of changing the frequency of ocean–atmosphere coupling on Atlantic TC activity. Increasing the frequency of coupling decreases the density of TC activity over the North Atlantic basin. However, it does not modify the spatial distribution of the TC activity. TC rainfalls are decreased by 8 % in the ... |
author2 |
Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'aérologie (LAERO) Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Daloz, Anne Sophie Chauvin, Fabrice Roux, Frank |
author_facet |
Daloz, Anne Sophie Chauvin, Fabrice Roux, Frank |
author_sort |
Daloz, Anne Sophie |
title |
Impact of ocean-atmosphere coupling on tropical cyclone activity in the variable-resolution ARPEGE GCM |
title_short |
Impact of ocean-atmosphere coupling on tropical cyclone activity in the variable-resolution ARPEGE GCM |
title_full |
Impact of ocean-atmosphere coupling on tropical cyclone activity in the variable-resolution ARPEGE GCM |
title_fullStr |
Impact of ocean-atmosphere coupling on tropical cyclone activity in the variable-resolution ARPEGE GCM |
title_full_unstemmed |
Impact of ocean-atmosphere coupling on tropical cyclone activity in the variable-resolution ARPEGE GCM |
title_sort |
impact of ocean-atmosphere coupling on tropical cyclone activity in the variable-resolution arpege gcm |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-01006526 https://hal.science/hal-01006526/document https://hal.science/hal-01006526/file/Daloz2012.pdf https://doi.org/10.1007/s00382-012-1561-3 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 0930-7575 EISSN: 1432-0894 Climate Dynamics https://hal.science/hal-01006526 Climate Dynamics, 2012, 39 (9-10), pp.2343-2359. ⟨10.1007/s00382-012-1561-3⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00382-012-1561-3 hal-01006526 https://hal.science/hal-01006526 https://hal.science/hal-01006526/document https://hal.science/hal-01006526/file/Daloz2012.pdf doi:10.1007/s00382-012-1561-3 |
op_rights |
http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1007/s00382-012-1561-3 |
container_title |
Climate Dynamics |
container_volume |
39 |
container_issue |
9-10 |
container_start_page |
2343 |
op_container_end_page |
2359 |
_version_ |
1785569619934707712 |
spelling |
ftutoulouse3hal:oai:HAL:hal-01006526v1 2023-12-17T10:46:14+01:00 Impact of ocean-atmosphere coupling on tropical cyclone activity in the variable-resolution ARPEGE GCM Daloz, Anne Sophie Chauvin, Fabrice Roux, Frank Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'aérologie (LAERO) Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) 2012 https://hal.science/hal-01006526 https://hal.science/hal-01006526/document https://hal.science/hal-01006526/file/Daloz2012.pdf https://doi.org/10.1007/s00382-012-1561-3 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00382-012-1561-3 hal-01006526 https://hal.science/hal-01006526 https://hal.science/hal-01006526/document https://hal.science/hal-01006526/file/Daloz2012.pdf doi:10.1007/s00382-012-1561-3 http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess ISSN: 0930-7575 EISSN: 1432-0894 Climate Dynamics https://hal.science/hal-01006526 Climate Dynamics, 2012, 39 (9-10), pp.2343-2359. ⟨10.1007/s00382-012-1561-3⟩ Tropical cyclone (TC) Ocean–atmosphere coupling Stretched Frequency of coupling African easterly wave (AEW) General circulation model (GCM) [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/article Journal articles 2012 ftutoulouse3hal https://doi.org/10.1007/s00382-012-1561-3 2023-11-22T17:54:28Z International audience This study starts by investigating the impact of the configuration of the variable-resolution atmospheric grid on tropical cyclone (TC) activity. The French atmospheric general circulation model ARPEGE, the grid of which is rotated and stretched over the North Atlantic basin, was used with prescribed sea surface temperatures. The study clearly shows that changing the position of the stretching pole strongly modifies the representation of TC activity over the North Atlantic basin. A pole in the centre of the North Atlantic basin provides the best representation of the TC activity for this region. In a second part, the variable-resolution climate model ARPEGE is coupled with the European oceanic global climate model NEMO in order to study the impact of ocean–atmosphere coupling on TC activity over the North Atlantic basin. Two pre-industrial runs, a coupled simulation and a simulation forced by the sea surface temperatures from the coupled one, are compared. The results show that the coupled simulation is more active in the Caribbean Sea and the Gulf of Mexico while the forced simulation is more active over eastern Florida and the eastern Atlantic. The difference in the distribution of TC activity is certainly linked with the location of TC genesis. In the forced simulation, tropical cyclogenesis is closer to the west African coast than in the coupled simulation. Moreover, the difference in TC activity over the eastern Atlantic seems to be related to two different mechanisms: the difference in African easterly wave activity over the west of Africa and the cooling produced, in the coupled simulation, by African easterly waves over the eastern Atlantic. Finally, the last part studies the impact of changing the frequency of ocean–atmosphere coupling on Atlantic TC activity. Increasing the frequency of coupling decreases the density of TC activity over the North Atlantic basin. However, it does not modify the spatial distribution of the TC activity. TC rainfalls are decreased by 8 % in the ... Article in Journal/Newspaper North Atlantic Université Toulouse III - Paul Sabatier: HAL-UPS Climate Dynamics 39 9-10 2343 2359 |