Mechanisms for European summer temperature response to solar forcing over the last millennium
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 re...
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Copernicus Publications
2012
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00024128 2023-05-15T18:18:38+02:00 Mechanisms for European summer temperature response to solar forcing over the last millennium Swingedouw, D. Terray, L. Servonnat, J. Guiot, J. 2012-10 electronic https://doi.org/10.5194/cp-8-1487-2012 https://noa.gwlb.de/receive/cop_mods_00024128 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00024083/cp-8-1487-2012.pdf https://cp.copernicus.org/articles/8/1487/2012/cp-8-1487-2012.pdf eng eng Copernicus Publications Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-8-1487-2012 https://noa.gwlb.de/receive/cop_mods_00024128 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00024083/cp-8-1487-2012.pdf https://cp.copernicus.org/articles/8/1487/2012/cp-8-1487-2012.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2012 ftnonlinearchiv https://doi.org/10.5194/cp-8-1487-2012 2022-02-08T22:50:18Z 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 Niedersächsisches Online-Archiv NOA Climate of the Past 8 5 1487 1495 |
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Niedersächsisches Online-Archiv NOA |
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English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Swingedouw, D. Terray, L. Servonnat, J. Guiot, J. Mechanisms for European summer temperature response to solar forcing over the last millennium |
topic_facet |
article Verlagsveröffentlichung |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Swingedouw, D. Terray, L. Servonnat, J. Guiot, J. |
author_facet |
Swingedouw, D. Terray, L. Servonnat, J. Guiot, J. |
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 |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/cp-8-1487-2012 https://noa.gwlb.de/receive/cop_mods_00024128 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00024083/cp-8-1487-2012.pdf https://cp.copernicus.org/articles/8/1487/2012/cp-8-1487-2012.pdf |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-8-1487-2012 https://noa.gwlb.de/receive/cop_mods_00024128 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00024083/cp-8-1487-2012.pdf https://cp.copernicus.org/articles/8/1487/2012/cp-8-1487-2012.pdf |
op_rights |
uneingeschränkt 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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1766195275922145280 |