North Atlantic forcing of climate and its uncertainty from a multi-model experiment
International audience To understand recent climate change in the North Atlantic region and to produce better climate forecasts with uncertainty estimates it is important to determine the atmospheric 'response' to Atlantic sea-surface temperature (SST) forcing. There have been conflicting...
Published in: | Quarterly Journal of the Royal Meteorological Society |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2004
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Subjects: | |
Online Access: | https://hal.science/hal-00770792 https://doi.org/10.1256/QJ.03.207 |
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ftutoulouse3hal:oai:HAL:hal-00770792v1 |
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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 |
NORTH ATLANTIC OSCILLATION INTERTROPICAL CONVERGENCE ZONE ASIAN MONSOON AIR-SEA INTERACTION [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
spellingShingle |
NORTH ATLANTIC OSCILLATION INTERTROPICAL CONVERGENCE ZONE ASIAN MONSOON AIR-SEA INTERACTION [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] Rodwell, M. J. Drévillon, M. Frankignoul, Claude Hurrell, J. W. Pohlmann, H. Stendel, M. Sutton, R. T. North Atlantic forcing of climate and its uncertainty from a multi-model experiment |
topic_facet |
NORTH ATLANTIC OSCILLATION INTERTROPICAL CONVERGENCE ZONE ASIAN MONSOON AIR-SEA INTERACTION [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
description |
International audience To understand recent climate change in the North Atlantic region and to produce better climate forecasts with uncertainty estimates it is important to determine the atmospheric 'response' to Atlantic sea-surface temperature (SST) forcing. There have been conflicting results regarding the strength, character and tropicalversus-extratropical origin of this response. For model-based studies, this may indicate differing sensitivities to Atlantic SST, but the comparison is complicated by changes in experimental design. Here, a highly controlled experiment with five atmospheric models is undertaken. The influence of realistic (if reasonably strong) and optimally chosen North Atlantic (equator to 70° N) SST anomalies is isolated. Unexpected global agreement between the models is found (e.g.the North Atlantic Oscillation (NAO), Eurasian temperatures, rainfall over the Americas and Africa, and the Asian monsoon). The extratropical North Atlantic region response appears to be associated with remote Caribbean and tropical Atlantic SST anomalies, and with local forcing. Some features such as the European winter-temperature response would be stronger than atmospheric 'noise' if the prescribed SST anomalies persisted for just two years. More generally, Atlantic air-sea interaction appears to be important for climate variability on the 30-year timescale and, thus, to be important in the climate-change context. The multimodel mean response patterns are in reasonable agreement with observational estimates, although the model response magnitudes may be too weak. The similarity between their responses helps to reconcile models. Intermodel differences do still exist and these are discussed and quantified. |
author2 |
Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) 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)-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) Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique (CERFACS) Laboratoire d'océanographie dynamique et de climatologie (LODYC) Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Max Planck Institute for Meteorology (MPI-M) Max-Planck-Gesellschaft Danish Climate Centre Danish Meteorological Institute (DMI) |
format |
Article in Journal/Newspaper |
author |
Rodwell, M. J. Drévillon, M. Frankignoul, Claude Hurrell, J. W. Pohlmann, H. Stendel, M. Sutton, R. T. |
author_facet |
Rodwell, M. J. Drévillon, M. Frankignoul, Claude Hurrell, J. W. Pohlmann, H. Stendel, M. Sutton, R. T. |
author_sort |
Rodwell, M. J. |
title |
North Atlantic forcing of climate and its uncertainty from a multi-model experiment |
title_short |
North Atlantic forcing of climate and its uncertainty from a multi-model experiment |
title_full |
North Atlantic forcing of climate and its uncertainty from a multi-model experiment |
title_fullStr |
North Atlantic forcing of climate and its uncertainty from a multi-model experiment |
title_full_unstemmed |
North Atlantic forcing of climate and its uncertainty from a multi-model experiment |
title_sort |
north atlantic forcing of climate and its uncertainty from a multi-model experiment |
publisher |
HAL CCSD |
publishDate |
2004 |
url |
https://hal.science/hal-00770792 https://doi.org/10.1256/QJ.03.207 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 0035-9009 EISSN: 1477-870X Quarterly Journal of the Royal Meteorological Society https://hal.science/hal-00770792 Quarterly Journal of the Royal Meteorological Society, 2004, 130, pp.2013-2032. ⟨10.1256/QJ.03.207⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1256/QJ.03.207 hal-00770792 https://hal.science/hal-00770792 BIBCODE: 2004QJRMS.130.2013R doi:10.1256/QJ.03.207 |
op_doi |
https://doi.org/10.1256/QJ.03.207 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
container_volume |
130 |
container_issue |
601 |
container_start_page |
2013 |
op_container_end_page |
2032 |
_version_ |
1785569422965997568 |
spelling |
ftutoulouse3hal:oai:HAL:hal-00770792v1 2023-12-17T10:46:04+01:00 North Atlantic forcing of climate and its uncertainty from a multi-model experiment Rodwell, M. J. Drévillon, M. Frankignoul, Claude Hurrell, J. W. Pohlmann, H. Stendel, M. Sutton, R. T. Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) 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)-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) Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique (CERFACS) Laboratoire d'océanographie dynamique et de climatologie (LODYC) Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Max Planck Institute for Meteorology (MPI-M) Max-Planck-Gesellschaft Danish Climate Centre Danish Meteorological Institute (DMI) 2004-07 https://hal.science/hal-00770792 https://doi.org/10.1256/QJ.03.207 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1256/QJ.03.207 hal-00770792 https://hal.science/hal-00770792 BIBCODE: 2004QJRMS.130.2013R doi:10.1256/QJ.03.207 ISSN: 0035-9009 EISSN: 1477-870X Quarterly Journal of the Royal Meteorological Society https://hal.science/hal-00770792 Quarterly Journal of the Royal Meteorological Society, 2004, 130, pp.2013-2032. ⟨10.1256/QJ.03.207⟩ NORTH ATLANTIC OSCILLATION INTERTROPICAL CONVERGENCE ZONE ASIAN MONSOON AIR-SEA INTERACTION [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2004 ftutoulouse3hal https://doi.org/10.1256/QJ.03.207 2023-11-22T17:28:49Z International audience To understand recent climate change in the North Atlantic region and to produce better climate forecasts with uncertainty estimates it is important to determine the atmospheric 'response' to Atlantic sea-surface temperature (SST) forcing. There have been conflicting results regarding the strength, character and tropicalversus-extratropical origin of this response. For model-based studies, this may indicate differing sensitivities to Atlantic SST, but the comparison is complicated by changes in experimental design. Here, a highly controlled experiment with five atmospheric models is undertaken. The influence of realistic (if reasonably strong) and optimally chosen North Atlantic (equator to 70° N) SST anomalies is isolated. Unexpected global agreement between the models is found (e.g.the North Atlantic Oscillation (NAO), Eurasian temperatures, rainfall over the Americas and Africa, and the Asian monsoon). The extratropical North Atlantic region response appears to be associated with remote Caribbean and tropical Atlantic SST anomalies, and with local forcing. Some features such as the European winter-temperature response would be stronger than atmospheric 'noise' if the prescribed SST anomalies persisted for just two years. More generally, Atlantic air-sea interaction appears to be important for climate variability on the 30-year timescale and, thus, to be important in the climate-change context. The multimodel mean response patterns are in reasonable agreement with observational estimates, although the model response magnitudes may be too weak. The similarity between their responses helps to reconcile models. Intermodel differences do still exist and these are discussed and quantified. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Université Toulouse III - Paul Sabatier: HAL-UPS Quarterly Journal of the Royal Meteorological Society 130 601 2013 2032 |