Mechanisms for European summer temperature response to solar forcing over the last millennium
International audience A simulation of the last millennium is compared to a recent spatio-temporal reconstruction of summer temperature over Europe. The focus is on the response to solar forcing over the pre-industrial era. Although the correlation between solar forcing and the reconstruction remain...
Published in: | Climate of the Past |
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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-01457745 https://hal.science/hal-01457745/document https://hal.science/hal-01457745/file/cp-8-1487-2012.pdf https://doi.org/10.5194/cp-8-1487-2012 |
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ftinsu:oai:HAL:hal-01457745v1 |
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Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
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English |
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[SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
[SDE.MCG]Environmental Sciences/Global Changes Swingedouw, D. Terray, L. Servonnat, J. Guiot, Joel Mechanisms for European summer temperature response to solar forcing over the last millennium |
topic_facet |
[SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience A simulation of the last millennium is compared to a recent spatio-temporal reconstruction of summer temperature over Europe. The focus is on the response to solar forcing over the pre-industrial era. Although the correlation between solar forcing and the reconstruction remains small, the spatial regression over solar forcing shows statistically significant regions. The meridional pattern of this regression is found to be similar in the model and in the reconstruction. This pattern exhibits a large warming over Northern and Mediterranean Europe and a lesser amplitude response over Central and Eastern Europe. The mechanisms explaining this pattern in the simulation are mainly related to evapotranspiration fluxes. It is shown that the evapotranspiration is larger in summer over Central and Eastern Europe when solar forcing increases, while it decreases over the Mediterranean area. The explanation for the evapotranspiration increase over Central and Eastern Europe is found in the increase of winter precipitation there, leading to a soil moisture increase in spring. As a consequence, the evapotranspiration is larger in summer, which leads to an increase in cloud cover over this region, reducing the surface shortwave flux there and leading to less warming. Over the Mediterranean area, the surface shortwave flux increases with solar forcing, the soil becomes dryer and the evapotranspiration is reduced in summer leading to a larger increase in temperature. This effect appears to be overestimated in the model as compared to the reconstruction. Finally, the warming of Northern Europe is related to the albedo feedback due to sea-ice cover retreat with increasing solar forcing. |
author2 |
Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique (CERFACS) 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) Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics (MERMAID) 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)) Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Ecosystèmes continentaux et risques environnementaux (ECCOREV) Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Swingedouw, D. Terray, L. Servonnat, J. Guiot, Joel |
author_facet |
Swingedouw, D. Terray, L. Servonnat, J. Guiot, Joel |
author_sort |
Swingedouw, D. |
title |
Mechanisms for European summer temperature response to solar forcing over the last millennium |
title_short |
Mechanisms for European summer temperature response to solar forcing over the last millennium |
title_full |
Mechanisms for European summer temperature response to solar forcing over the last millennium |
title_fullStr |
Mechanisms for European summer temperature response to solar forcing over the last millennium |
title_full_unstemmed |
Mechanisms for European summer temperature response to solar forcing over the last millennium |
title_sort |
mechanisms for european summer temperature response to solar forcing over the last millennium |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-01457745 https://hal.science/hal-01457745/document https://hal.science/hal-01457745/file/cp-8-1487-2012.pdf https://doi.org/10.5194/cp-8-1487-2012 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
ISSN: 1814-9324 EISSN: 1814-9332 Climate of the Past https://hal.science/hal-01457745 Climate of the Past, 2012, 8 (5), pp.1487-1495. ⟨10.5194/cp-8-1487-2012⟩ |
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info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-8-1487-2012 hal-01457745 https://hal.science/hal-01457745 https://hal.science/hal-01457745/document https://hal.science/hal-01457745/file/cp-8-1487-2012.pdf doi:10.5194/cp-8-1487-2012 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/cp-8-1487-2012 |
container_title |
Climate of the Past |
container_volume |
8 |
container_issue |
5 |
container_start_page |
1487 |
op_container_end_page |
1495 |
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1797569188747804672 |
spelling |
ftinsu:oai:HAL:hal-01457745v1 2024-04-28T08:37:58+00:00 Mechanisms for European summer temperature response to solar forcing over the last millennium Swingedouw, D. Terray, L. Servonnat, J. Guiot, Joel Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique (CERFACS) 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) Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics (MERMAID) 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)) Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Ecosystèmes continentaux et risques environnementaux (ECCOREV) Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS) 2012 https://hal.science/hal-01457745 https://hal.science/hal-01457745/document https://hal.science/hal-01457745/file/cp-8-1487-2012.pdf https://doi.org/10.5194/cp-8-1487-2012 en eng HAL CCSD European Geosciences Union (EGU) info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-8-1487-2012 hal-01457745 https://hal.science/hal-01457745 https://hal.science/hal-01457745/document https://hal.science/hal-01457745/file/cp-8-1487-2012.pdf doi:10.5194/cp-8-1487-2012 info:eu-repo/semantics/OpenAccess ISSN: 1814-9324 EISSN: 1814-9332 Climate of the Past https://hal.science/hal-01457745 Climate of the Past, 2012, 8 (5), pp.1487-1495. ⟨10.5194/cp-8-1487-2012⟩ [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2012 ftinsu https://doi.org/10.5194/cp-8-1487-2012 2024-04-05T00:47:53Z International audience A simulation of the last millennium is compared to a recent spatio-temporal reconstruction of summer temperature over Europe. The focus is on the response to solar forcing over the pre-industrial era. Although the correlation between solar forcing and the reconstruction remains small, the spatial regression over solar forcing shows statistically significant regions. The meridional pattern of this regression is found to be similar in the model and in the reconstruction. This pattern exhibits a large warming over Northern and Mediterranean Europe and a lesser amplitude response over Central and Eastern Europe. The mechanisms explaining this pattern in the simulation are mainly related to evapotranspiration fluxes. It is shown that the evapotranspiration is larger in summer over Central and Eastern Europe when solar forcing increases, while it decreases over the Mediterranean area. The explanation for the evapotranspiration increase over Central and Eastern Europe is found in the increase of winter precipitation there, leading to a soil moisture increase in spring. As a consequence, the evapotranspiration is larger in summer, which leads to an increase in cloud cover over this region, reducing the surface shortwave flux there and leading to less warming. Over the Mediterranean area, the surface shortwave flux increases with solar forcing, the soil becomes dryer and the evapotranspiration is reduced in summer leading to a larger increase in temperature. This effect appears to be overestimated in the model as compared to the reconstruction. Finally, the warming of Northern Europe is related to the albedo feedback due to sea-ice cover retreat with increasing solar forcing. Article in Journal/Newspaper Sea ice Institut national des sciences de l'Univers: HAL-INSU Climate of the Past 8 5 1487 1495 |