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...
Published in: | Climate of the Past |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2012
|
Subjects: | |
Online Access: | https://doi.org/10.5194/cp-8-1487-2012 https://doaj.org/article/dd614de7554a4c71a4e2dc77c30a5964 |
id |
ftdoajarticles:oai:doaj.org/article:dd614de7554a4c71a4e2dc77c30a5964 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:dd614de7554a4c71a4e2dc77c30a5964 2023-05-15T18:18:43+02:00 Mechanisms for European summer temperature response to solar forcing over the last millennium D. Swingedouw L. Terray J. Servonnat J. Guiot 2012-10-01T00:00:00Z https://doi.org/10.5194/cp-8-1487-2012 https://doaj.org/article/dd614de7554a4c71a4e2dc77c30a5964 EN eng Copernicus Publications http://www.clim-past.net/8/1487/2012/cp-8-1487-2012.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 doi:10.5194/cp-8-1487-2012 1814-9324 1814-9332 https://doaj.org/article/dd614de7554a4c71a4e2dc77c30a5964 Climate of the Past, Vol 8, Iss 5, Pp 1487-1495 (2012) Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 article 2012 ftdoajarticles https://doi.org/10.5194/cp-8-1487-2012 2022-12-31T06:15:21Z 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 Directory of Open Access Journals: DOAJ Articles Climate of the Past 8 5 1487 1495 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
spellingShingle |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 D. Swingedouw L. Terray J. Servonnat J. Guiot Mechanisms for European summer temperature response to solar forcing over the last millennium |
topic_facet |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
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 |
D. Swingedouw L. Terray J. Servonnat J. Guiot |
author_facet |
D. Swingedouw L. Terray J. Servonnat J. Guiot |
author_sort |
D. Swingedouw |
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://doaj.org/article/dd614de7554a4c71a4e2dc77c30a5964 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Climate of the Past, Vol 8, Iss 5, Pp 1487-1495 (2012) |
op_relation |
http://www.clim-past.net/8/1487/2012/cp-8-1487-2012.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 doi:10.5194/cp-8-1487-2012 1814-9324 1814-9332 https://doaj.org/article/dd614de7554a4c71a4e2dc77c30a5964 |
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 |
_version_ |
1766195382913597440 |