Impact of Earth’s orbit and freshwater fluxes on Holocene climate mean seasonal cycle and ENSO characteristics
International audience We use a state-of-the-art 3-dimensional coupled model to investigate the relative impact of long term variations in the Holocene insolation forcing and of a freshwater release in the North Atlantic. We show that insolation has a greater effect on seasonality and La Niña events...
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ftinsu:oai:HAL:hal-03019484v1 2024-04-28T08:24:57+00:00 Impact of Earth’s orbit and freshwater fluxes on Holocene climate mean seasonal cycle and ENSO characteristics Braconnot, P. Luan, Y. Brewer, S. Zheng, W. 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)) Institute of Atmospheric Physics Beijing (IAP) Chinese Academy of Sciences Beijing (CAS) Department of Botany, University of Wyoming University of Wyoming (UW) 2012 https://hal.science/hal-03019484 https://hal.science/hal-03019484/document https://hal.science/hal-03019484/file/Braconnot2012_Article_ImpactOfEarthSOrbitAndFreshwat.pdf https://doi.org/10.1007/s00382-011-1029-x en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00382-011-1029-x hal-03019484 https://hal.science/hal-03019484 https://hal.science/hal-03019484/document https://hal.science/hal-03019484/file/Braconnot2012_Article_ImpactOfEarthSOrbitAndFreshwat.pdf doi:10.1007/s00382-011-1029-x info:eu-repo/semantics/OpenAccess ISSN: 0930-7575 EISSN: 1432-0894 Climate Dynamics https://hal.science/hal-03019484 Climate Dynamics, 2012, 38, pp.1081-1092. ⟨10.1007/s00382-011-1029-x⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2012 ftinsu https://doi.org/10.1007/s00382-011-1029-x 2024-04-05T00:36:33Z International audience We use a state-of-the-art 3-dimensional coupled model to investigate the relative impact of long term variations in the Holocene insolation forcing and of a freshwater release in the North Atlantic. We show that insolation has a greater effect on seasonality and La Niña events and is the major driver of sea surface temperature changes. In contrast, the variations in precipitation reflect changes in El Niño events. The impact of ice-sheet melting may have offset the impact of insolation on El Niño Southern Oscillation variability at the beginning of the Holocene. These simulations provide a coherent framework to refine the interpretation of proxy data and show that changes in seasonality may bias the projection of relationships established between proxy indicators and climate variations in the east Pacific from present day records. Article in Journal/Newspaper Ice Sheet North Atlantic Institut national des sciences de l'Univers: HAL-INSU Climate Dynamics 38 5-6 1081 1092 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Braconnot, P. Luan, Y. Brewer, S. Zheng, W. Impact of Earth’s orbit and freshwater fluxes on Holocene climate mean seasonal cycle and ENSO characteristics |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience We use a state-of-the-art 3-dimensional coupled model to investigate the relative impact of long term variations in the Holocene insolation forcing and of a freshwater release in the North Atlantic. We show that insolation has a greater effect on seasonality and La Niña events and is the major driver of sea surface temperature changes. In contrast, the variations in precipitation reflect changes in El Niño events. The impact of ice-sheet melting may have offset the impact of insolation on El Niño Southern Oscillation variability at the beginning of the Holocene. These simulations provide a coherent framework to refine the interpretation of proxy data and show that changes in seasonality may bias the projection of relationships established between proxy indicators and climate variations in the east Pacific from present day records. |
author2 |
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)) Institute of Atmospheric Physics Beijing (IAP) Chinese Academy of Sciences Beijing (CAS) Department of Botany, University of Wyoming University of Wyoming (UW) |
format |
Article in Journal/Newspaper |
author |
Braconnot, P. Luan, Y. Brewer, S. Zheng, W. |
author_facet |
Braconnot, P. Luan, Y. Brewer, S. Zheng, W. |
author_sort |
Braconnot, P. |
title |
Impact of Earth’s orbit and freshwater fluxes on Holocene climate mean seasonal cycle and ENSO characteristics |
title_short |
Impact of Earth’s orbit and freshwater fluxes on Holocene climate mean seasonal cycle and ENSO characteristics |
title_full |
Impact of Earth’s orbit and freshwater fluxes on Holocene climate mean seasonal cycle and ENSO characteristics |
title_fullStr |
Impact of Earth’s orbit and freshwater fluxes on Holocene climate mean seasonal cycle and ENSO characteristics |
title_full_unstemmed |
Impact of Earth’s orbit and freshwater fluxes on Holocene climate mean seasonal cycle and ENSO characteristics |
title_sort |
impact of earth’s orbit and freshwater fluxes on holocene climate mean seasonal cycle and enso characteristics |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-03019484 https://hal.science/hal-03019484/document https://hal.science/hal-03019484/file/Braconnot2012_Article_ImpactOfEarthSOrbitAndFreshwat.pdf https://doi.org/10.1007/s00382-011-1029-x |
genre |
Ice Sheet North Atlantic |
genre_facet |
Ice Sheet North Atlantic |
op_source |
ISSN: 0930-7575 EISSN: 1432-0894 Climate Dynamics https://hal.science/hal-03019484 Climate Dynamics, 2012, 38, pp.1081-1092. ⟨10.1007/s00382-011-1029-x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00382-011-1029-x hal-03019484 https://hal.science/hal-03019484 https://hal.science/hal-03019484/document https://hal.science/hal-03019484/file/Braconnot2012_Article_ImpactOfEarthSOrbitAndFreshwat.pdf doi:10.1007/s00382-011-1029-x |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1007/s00382-011-1029-x |
container_title |
Climate Dynamics |
container_volume |
38 |
container_issue |
5-6 |
container_start_page |
1081 |
op_container_end_page |
1092 |
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1797584939734007808 |