The medieval climate anomaly in Europe: Comparison of the summer and annual mean signals in two reconstructions and in simulations with data assimilation
The spatial pattern and potential dynamical origin of the Medieval Climate Anomaly (MCA, around 1000 AD) in Europe are assessed with two recent reconstructions and simulations constrained to follow those reconstructions by means of paleoclimate data assimilation. The simulations employ a climate mod...
Published in: | Global and Planetary Change |
---|---|
Main Authors: | , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2012
|
Subjects: | |
Online Access: | https://hal.science/hal-00866994 https://doi.org/10.1016/j.gloplacha.2011.07.002 |
id |
ftinraparis:oai:HAL:hal-00866994v1 |
---|---|
record_format |
openpolar |
spelling |
ftinraparis:oai:HAL:hal-00866994v1 2024-06-23T07:52:44+00:00 The medieval climate anomaly in Europe: Comparison of the summer and annual mean signals in two reconstructions and in simulations with data assimilation Goosse, H Guiot, Joel Mann, Me Dubinkina, S Sallaz-Damaz, Y 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) 2012 https://hal.science/hal-00866994 https://doi.org/10.1016/j.gloplacha.2011.07.002 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gloplacha.2011.07.002 hal-00866994 https://hal.science/hal-00866994 doi:10.1016/j.gloplacha.2011.07.002 ISSN: 0921-8181 Global and Planetary Change https://hal.science/hal-00866994 Global and Planetary Change, 2012, 84-85, pp.35-47. ⟨10.1016/j.gloplacha.2011.07.002⟩ Europe seasonal climate signal atmospheric circulation data assimilation NORTH-ATLANTIC OSCILLATION LAND-COVER CHANGE LAST MILLENNIUM TEMPERATURE-VARIATIONS LATE HOLOCENE CARBON-CYCLE CIRCULATION VARIABILITY INTERMEDIATE COMPLEXITY FENNOSCANDIAN SUMMERS SURFACE-TEMPERATURE Geography Physical Geosciences Multidisciplinary Physical Geography Geology 0921-8181 [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2012 ftinraparis https://doi.org/10.1016/j.gloplacha.2011.07.002 2024-06-11T14:39:18Z The spatial pattern and potential dynamical origin of the Medieval Climate Anomaly (MCA, around 1000 AD) in Europe are assessed with two recent reconstructions and simulations constrained to follow those reconstructions by means of paleoclimate data assimilation. The simulations employ a climate model of intermediate complexity (LOVECLIM). The data assimilation technique is based on a particle filter using an ensemble of 96 simulations. The peak winter (and annual mean) warming during the MCA, in our analyses, is found to be strongest at high latitudes, associated with strengthened mid-latitude westerlies. Summer warmth, by contrast, is found to be greatest in southern Europe and the Mediterranean Sea, associated with reduced westerlies and strengthened southerly winds off North Africa. The results of our analysis thus underscore the complexity of the spatial and seasonal structure of the MCA in Europe. (C) 2011 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Fennoscandian North Atlantic North Atlantic oscillation Institut National de la Recherche Agronomique: ProdINRA Global and Planetary Change 84-85 35 47 |
institution |
Open Polar |
collection |
Institut National de la Recherche Agronomique: ProdINRA |
op_collection_id |
ftinraparis |
language |
English |
topic |
Europe seasonal climate signal atmospheric circulation data assimilation NORTH-ATLANTIC OSCILLATION LAND-COVER CHANGE LAST MILLENNIUM TEMPERATURE-VARIATIONS LATE HOLOCENE CARBON-CYCLE CIRCULATION VARIABILITY INTERMEDIATE COMPLEXITY FENNOSCANDIAN SUMMERS SURFACE-TEMPERATURE Geography Physical Geosciences Multidisciplinary Physical Geography Geology 0921-8181 [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
Europe seasonal climate signal atmospheric circulation data assimilation NORTH-ATLANTIC OSCILLATION LAND-COVER CHANGE LAST MILLENNIUM TEMPERATURE-VARIATIONS LATE HOLOCENE CARBON-CYCLE CIRCULATION VARIABILITY INTERMEDIATE COMPLEXITY FENNOSCANDIAN SUMMERS SURFACE-TEMPERATURE Geography Physical Geosciences Multidisciplinary Physical Geography Geology 0921-8181 [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE.MCG]Environmental Sciences/Global Changes Goosse, H Guiot, Joel Mann, Me Dubinkina, S Sallaz-Damaz, Y The medieval climate anomaly in Europe: Comparison of the summer and annual mean signals in two reconstructions and in simulations with data assimilation |
topic_facet |
Europe seasonal climate signal atmospheric circulation data assimilation NORTH-ATLANTIC OSCILLATION LAND-COVER CHANGE LAST MILLENNIUM TEMPERATURE-VARIATIONS LATE HOLOCENE CARBON-CYCLE CIRCULATION VARIABILITY INTERMEDIATE COMPLEXITY FENNOSCANDIAN SUMMERS SURFACE-TEMPERATURE Geography Physical Geosciences Multidisciplinary Physical Geography Geology 0921-8181 [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE.MCG]Environmental Sciences/Global Changes |
description |
The spatial pattern and potential dynamical origin of the Medieval Climate Anomaly (MCA, around 1000 AD) in Europe are assessed with two recent reconstructions and simulations constrained to follow those reconstructions by means of paleoclimate data assimilation. The simulations employ a climate model of intermediate complexity (LOVECLIM). The data assimilation technique is based on a particle filter using an ensemble of 96 simulations. The peak winter (and annual mean) warming during the MCA, in our analyses, is found to be strongest at high latitudes, associated with strengthened mid-latitude westerlies. Summer warmth, by contrast, is found to be greatest in southern Europe and the Mediterranean Sea, associated with reduced westerlies and strengthened southerly winds off North Africa. The results of our analysis thus underscore the complexity of the spatial and seasonal structure of the MCA in Europe. (C) 2011 Elsevier B.V. All rights reserved. |
author2 |
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) |
format |
Article in Journal/Newspaper |
author |
Goosse, H Guiot, Joel Mann, Me Dubinkina, S Sallaz-Damaz, Y |
author_facet |
Goosse, H Guiot, Joel Mann, Me Dubinkina, S Sallaz-Damaz, Y |
author_sort |
Goosse, H |
title |
The medieval climate anomaly in Europe: Comparison of the summer and annual mean signals in two reconstructions and in simulations with data assimilation |
title_short |
The medieval climate anomaly in Europe: Comparison of the summer and annual mean signals in two reconstructions and in simulations with data assimilation |
title_full |
The medieval climate anomaly in Europe: Comparison of the summer and annual mean signals in two reconstructions and in simulations with data assimilation |
title_fullStr |
The medieval climate anomaly in Europe: Comparison of the summer and annual mean signals in two reconstructions and in simulations with data assimilation |
title_full_unstemmed |
The medieval climate anomaly in Europe: Comparison of the summer and annual mean signals in two reconstructions and in simulations with data assimilation |
title_sort |
medieval climate anomaly in europe: comparison of the summer and annual mean signals in two reconstructions and in simulations with data assimilation |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-00866994 https://doi.org/10.1016/j.gloplacha.2011.07.002 |
genre |
Fennoscandian North Atlantic North Atlantic oscillation |
genre_facet |
Fennoscandian North Atlantic North Atlantic oscillation |
op_source |
ISSN: 0921-8181 Global and Planetary Change https://hal.science/hal-00866994 Global and Planetary Change, 2012, 84-85, pp.35-47. ⟨10.1016/j.gloplacha.2011.07.002⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gloplacha.2011.07.002 hal-00866994 https://hal.science/hal-00866994 doi:10.1016/j.gloplacha.2011.07.002 |
op_doi |
https://doi.org/10.1016/j.gloplacha.2011.07.002 |
container_title |
Global and Planetary Change |
container_volume |
84-85 |
container_start_page |
35 |
op_container_end_page |
47 |
_version_ |
1802644118425305088 |