Hierarchy of abrupt transitions in the past climate
The Earth’s climate has experienced numerous critical transitions during its history. Such transitions are evidenced in high-resolution records covering different timescales. This suggests the possibility of identifying, ranking past critical transitions, which yields a more complex perspective on c...
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ftccsdartic:oai:HAL:hal-03713538v2 2023-05-15T17:32:47+02:00 Hierarchy of abrupt transitions in the past climate Rousseau, Denis-Didier Lucarini, Valerio Bagniewski, Witold Géosciences Montpellier Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)-Université de Montpellier (UM) 2022-10-20 https://hal.archives-ouvertes.fr/hal-03713538 https://hal.archives-ouvertes.fr/hal-03713538v2/document https://hal.archives-ouvertes.fr/hal-03713538v2/file/Hierarchy_advances_ms_template.pdf en eng HAL CCSD hal-03713538 https://hal.archives-ouvertes.fr/hal-03713538 https://hal.archives-ouvertes.fr/hal-03713538v2/document https://hal.archives-ouvertes.fr/hal-03713538v2/file/Hierarchy_advances_ms_template.pdf info:eu-repo/semantics/OpenAccess https://hal.archives-ouvertes.fr/hal-03713538 2022 [SDE.MCG]Environmental Sciences/Global Changes [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/preprint Preprints, Working Papers, . 2022 ftccsdartic 2022-10-29T23:18:57Z The Earth’s climate has experienced numerous critical transitions during its history. Such transitions are evidenced in high-resolution records covering different timescales. This suggests the possibility of identifying, ranking past critical transitions, which yields a more complex perspective on climatic history. Such a context allows defining dynamical climate landscapes with multi-scale features. To illustrate such a richer structure, we have analyzed 2 key high-resolution datasets: the CENOGRID marine compilation (past 66 Myr), and North Atlantic U1308 record (past 3.3 Myr). Our aim was to examine objectively the observed visual evidence of abrupt transitions and to identify among them, the key thresholds indicating regime changes that differentiate among major clusters of variability. This identification is discussed after comparison with major climate factors. A hierarchy in the observed thresholds is proposed through a domino-like succession of abrupt transitions, corresponding to as many bifurcations that shaped the Earth’s climate system over the past 66 Ma. Report North Atlantic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
topic |
[SDE.MCG]Environmental Sciences/Global Changes [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
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[SDE.MCG]Environmental Sciences/Global Changes [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Rousseau, Denis-Didier Lucarini, Valerio Bagniewski, Witold Hierarchy of abrupt transitions in the past climate |
topic_facet |
[SDE.MCG]Environmental Sciences/Global Changes [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
The Earth’s climate has experienced numerous critical transitions during its history. Such transitions are evidenced in high-resolution records covering different timescales. This suggests the possibility of identifying, ranking past critical transitions, which yields a more complex perspective on climatic history. Such a context allows defining dynamical climate landscapes with multi-scale features. To illustrate such a richer structure, we have analyzed 2 key high-resolution datasets: the CENOGRID marine compilation (past 66 Myr), and North Atlantic U1308 record (past 3.3 Myr). Our aim was to examine objectively the observed visual evidence of abrupt transitions and to identify among them, the key thresholds indicating regime changes that differentiate among major clusters of variability. This identification is discussed after comparison with major climate factors. A hierarchy in the observed thresholds is proposed through a domino-like succession of abrupt transitions, corresponding to as many bifurcations that shaped the Earth’s climate system over the past 66 Ma. |
author2 |
Géosciences Montpellier Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)-Université de Montpellier (UM) |
format |
Report |
author |
Rousseau, Denis-Didier Lucarini, Valerio Bagniewski, Witold |
author_facet |
Rousseau, Denis-Didier Lucarini, Valerio Bagniewski, Witold |
author_sort |
Rousseau, Denis-Didier |
title |
Hierarchy of abrupt transitions in the past climate |
title_short |
Hierarchy of abrupt transitions in the past climate |
title_full |
Hierarchy of abrupt transitions in the past climate |
title_fullStr |
Hierarchy of abrupt transitions in the past climate |
title_full_unstemmed |
Hierarchy of abrupt transitions in the past climate |
title_sort |
hierarchy of abrupt transitions in the past climate |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.archives-ouvertes.fr/hal-03713538 https://hal.archives-ouvertes.fr/hal-03713538v2/document https://hal.archives-ouvertes.fr/hal-03713538v2/file/Hierarchy_advances_ms_template.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
https://hal.archives-ouvertes.fr/hal-03713538 2022 |
op_relation |
hal-03713538 https://hal.archives-ouvertes.fr/hal-03713538 https://hal.archives-ouvertes.fr/hal-03713538v2/document https://hal.archives-ouvertes.fr/hal-03713538v2/file/Hierarchy_advances_ms_template.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766131054410727424 |