The spatiotemporal pattern of the Bond 4 event (5.2 ka) : a global data-based review
International audience The Bond 4 event starting at 7000 yr BP and culminating around 5200 yr BP corresponds to the largest (in magnitude and duration) invasion of drifting ice across the subpolar North Atlantic during the Holocene (Bond et al., 2001). While several studies have focused on other eve...
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2021
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Online Access: | https://hal.science/hal-03503452 https://doi.org/10.5194/egusphere-egu21-15576 |
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[SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
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[SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Jalali, Bassem Sicre, Marie-Alexandrine The spatiotemporal pattern of the Bond 4 event (5.2 ka) : a global data-based review |
topic_facet |
[SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
International audience The Bond 4 event starting at 7000 yr BP and culminating around 5200 yr BP corresponds to the largest (in magnitude and duration) invasion of drifting ice across the subpolar North Atlantic during the Holocene (Bond et al., 2001). While several studies have focused on other events of the Holocene, such as the 8.2 ka, the 4.2 ka and the Little Ice Age, little is known about the mid-Holocene 5.2 ka event. Here we present a global compilation of carefully selected high-resolution time series of sea surface temperature (SST; N=58) and humidity/precipitation (N=35) to characterize in space and time the 5.2 ka event pattern.The SST records show the occurrence of cold conditions in the North Atlantic, western Mediterranean as well as in the western Pacific Ocean. However, they indicate warming in the high latitude North Atlantic, the southeastern Atlantic, the eastern Mediterranean and the Arabian and Red seas. Humidity/precipitation data (mainly based on oxygen isotope records in speleothems) indicate dry conditions in the northern hemisphere subtropical and mid latitude regions of all continents. Based on these data and others from marine and lacustrine records in tropical regions, we suggest a possible weakening of monsoon systems, i.e. in Africa, North America, southwest Asia as well as East Asia. Precipitation reduced as well in most regions of the Mediterranean (i.e. except Iberian Peninsula). All together these data indicate severe climate conditions during the 5.2 ka event.Based on the recent compilation of sortable silt from the high latitude North Atlantic of McCave and Andrews (2019), the 5.2 ka event coincides with a decrease of the main Shallow and bottom ocean flows (i.e. North Iceland Irminger Current, East Greenland Current, Iceland-Scotland over flow) probably reflecting a weakening of the North Atlantic Deep Water formation. This event also corresponds to the occurrence of several solar minima as well as several tropical volcanic mega-eruptions that could have triggered a ... |
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Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Variabilité de l'Océan et de la Glace de mer (VOG) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) |
format |
Conference Object |
author |
Jalali, Bassem Sicre, Marie-Alexandrine |
author_facet |
Jalali, Bassem Sicre, Marie-Alexandrine |
author_sort |
Jalali, Bassem |
title |
The spatiotemporal pattern of the Bond 4 event (5.2 ka) : a global data-based review |
title_short |
The spatiotemporal pattern of the Bond 4 event (5.2 ka) : a global data-based review |
title_full |
The spatiotemporal pattern of the Bond 4 event (5.2 ka) : a global data-based review |
title_fullStr |
The spatiotemporal pattern of the Bond 4 event (5.2 ka) : a global data-based review |
title_full_unstemmed |
The spatiotemporal pattern of the Bond 4 event (5.2 ka) : a global data-based review |
title_sort |
spatiotemporal pattern of the bond 4 event (5.2 ka) : a global data-based review |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03503452 https://doi.org/10.5194/egusphere-egu21-15576 |
op_coverage |
Vienne, Austria |
genre |
East Greenland east greenland current Greenland Iceland North Atlantic Deep Water North Atlantic |
genre_facet |
East Greenland east greenland current Greenland Iceland North Atlantic Deep Water North Atlantic |
op_source |
EGU 2021 https://hal.science/hal-03503452 EGU 2021, Apr 2021, Vienne, Austria. ⟨10.5194/egusphere-egu21-15576⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu21-15576 hal-03503452 https://hal.science/hal-03503452 doi:10.5194/egusphere-egu21-15576 |
op_doi |
https://doi.org/10.5194/egusphere-egu21-15576 |
_version_ |
1799479203237724160 |
spelling |
ftinspolytechpar:oai:HAL:hal-03503452v1 2024-05-19T07:39:37+00:00 The spatiotemporal pattern of the Bond 4 event (5.2 ka) : a global data-based review Jalali, Bassem Sicre, Marie-Alexandrine Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Variabilité de l'Océan et de la Glace de mer (VOG) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Vienne, Austria 2021-04 https://hal.science/hal-03503452 https://doi.org/10.5194/egusphere-egu21-15576 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu21-15576 hal-03503452 https://hal.science/hal-03503452 doi:10.5194/egusphere-egu21-15576 EGU 2021 https://hal.science/hal-03503452 EGU 2021, Apr 2021, Vienne, Austria. ⟨10.5194/egusphere-egu21-15576⟩ [SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/conferenceObject Conference papers 2021 ftinspolytechpar https://doi.org/10.5194/egusphere-egu21-15576 2024-04-22T01:47:30Z International audience The Bond 4 event starting at 7000 yr BP and culminating around 5200 yr BP corresponds to the largest (in magnitude and duration) invasion of drifting ice across the subpolar North Atlantic during the Holocene (Bond et al., 2001). While several studies have focused on other events of the Holocene, such as the 8.2 ka, the 4.2 ka and the Little Ice Age, little is known about the mid-Holocene 5.2 ka event. Here we present a global compilation of carefully selected high-resolution time series of sea surface temperature (SST; N=58) and humidity/precipitation (N=35) to characterize in space and time the 5.2 ka event pattern.The SST records show the occurrence of cold conditions in the North Atlantic, western Mediterranean as well as in the western Pacific Ocean. However, they indicate warming in the high latitude North Atlantic, the southeastern Atlantic, the eastern Mediterranean and the Arabian and Red seas. Humidity/precipitation data (mainly based on oxygen isotope records in speleothems) indicate dry conditions in the northern hemisphere subtropical and mid latitude regions of all continents. Based on these data and others from marine and lacustrine records in tropical regions, we suggest a possible weakening of monsoon systems, i.e. in Africa, North America, southwest Asia as well as East Asia. Precipitation reduced as well in most regions of the Mediterranean (i.e. except Iberian Peninsula). All together these data indicate severe climate conditions during the 5.2 ka event.Based on the recent compilation of sortable silt from the high latitude North Atlantic of McCave and Andrews (2019), the 5.2 ka event coincides with a decrease of the main Shallow and bottom ocean flows (i.e. North Iceland Irminger Current, East Greenland Current, Iceland-Scotland over flow) probably reflecting a weakening of the North Atlantic Deep Water formation. This event also corresponds to the occurrence of several solar minima as well as several tropical volcanic mega-eruptions that could have triggered a ... Conference Object East Greenland east greenland current Greenland Iceland North Atlantic Deep Water North Atlantic HAL de l'Institut Polytechnique de Paris |