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Hu HM, Marino G, Pérez-Mejías C, Spötl C, Yokoyama Y, Yu J, Rohling E, Kano A, Ludwig P, Pinto JG, Michel V, Valensi P, Zhang X, Jiang X, Mii HS, Chien WY, Tsai HC, Sung WH, Hsu CH, Starnini E, Zunino M, Shen CC. Sustained North Atlantic warming drove anomalously intense MIS 11c interglacial. Nat Commun 2024; 15:5933. [PMID: 39009621 PMCID: PMC11251152 DOI: 10.1038/s41467-024-50207-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 07/01/2024] [Indexed: 07/17/2024] Open
Abstract
The Marine Isotope Stage (MIS) 11c interglacial and its preceding glacial termination represent an enigmatically intense climate response to relatively weak insolation forcing. So far, a lack of radiometric age control has confounded a detailed assessment of the insolation-climate relationship during this period. Here, we present 230Th-dated speleothem proxy data from northern Italy and compare them with palaeoclimate records from the North Atlantic region. We find that interglacial conditions started in subtropical to middle latitudes at 423.1 ± 1.3 thousand years (kyr) before present, during a first weak insolation maximum, whereas northern high latitudes remained glaciated (sea level ~ 40 m below present). Some 14.5 ± 2.8 kyr after this early subtropical onset, peak interglacial conditions were reached globally, with sea level 6-13 m above present, despite weak insolation forcing. We attribute this remarkably intense climate response to an exceptionally long (~15 kyr) episode of intense poleward heat flux transport prior to the MIS 11c optimum.
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Affiliation(s)
- Hsun-Ming Hu
- High-Precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Department of Geosciences, National Taiwan University, Taipei, 10617, ROC, Taiwan.
- Radiogenic Isotope Facility, School of Earth and Environmental Sciences, The University of Queensland, Brisbane, QLD 4072, Australia.
- Research Center for Future Earth, National Taiwan University, Taipei, 10617, ROC, Taiwan.
| | - Gianluca Marino
- Centro de Investigación Mariña, GEOMA, Palaeoclimatology Lab, Universidade de Vigo, Vigo, 3610, Spain.
| | - Carlos Pérez-Mejías
- Institute of Global Environmental Change, Xi'an Jiaotong University, 710049, Xi'an, China
| | - Christoph Spötl
- Institute of Geology, University of Innsbruck, Innrain 52, 6020, Innsbruck, Austria
| | - Yusuke Yokoyama
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8564, Japan
- Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Jimin Yu
- Laoshan Laboratory, Qingdao, 266237, China
- Research School of Earth Sciences, The Australian National University, Canberra, ACT 2601, Australia
| | - Eelco Rohling
- Department of Earth Sciences, Utrecht University, 3584, CB, Utrecht, Netherlands
- Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH, UK
| | - Akihiro Kano
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8564, Japan
| | - Patrick Ludwig
- Institute of Meteorology and Climate Research Troposphere Research (IMKTRO), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Joaquim G Pinto
- Institute of Meteorology and Climate Research Troposphere Research (IMKTRO), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Véronique Michel
- Université Côte d'Azur, CNRS, CEPAM, 06300, Nice, France
- Université Côte d'Azur, CNRS, OCA, IRD, Géoazur, 06560, Valbonne, France
| | - Patricia Valensi
- UMR7194 HNHP (MNHN-CNRS-UPVD), Institut de Paléontologie Humaine, 75013, Paris, France
| | - Xin Zhang
- Key Laboratory of Humid Subtropical Eco-Geographical Processes, Ministry of Education, College of Geography Science, Fujian Normal University, Fuzhou, 350007, China
| | - Xiuyang Jiang
- Key Laboratory of Humid Subtropical Eco-Geographical Processes, Ministry of Education, College of Geography Science, Fujian Normal University, Fuzhou, 350007, China
| | - Horng-Sheng Mii
- Department of Earth Sciences, National Taiwan Normal University, Taipei, 11677, ROC, Taiwan
| | - Wei-Yi Chien
- High-Precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Department of Geosciences, National Taiwan University, Taipei, 10617, ROC, Taiwan
| | - Hsien-Chen Tsai
- High-Precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Department of Geosciences, National Taiwan University, Taipei, 10617, ROC, Taiwan
| | - Wen-Hui Sung
- High-Precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Department of Geosciences, National Taiwan University, Taipei, 10617, ROC, Taiwan
| | - Chia-Hao Hsu
- High-Precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Department of Geosciences, National Taiwan University, Taipei, 10617, ROC, Taiwan
| | - Elisabetta Starnini
- Department of Civilizations and Forms of Knowledge, University of Pisa, Via dei Mille 19, 56126, Pisa, Italy
| | - Marta Zunino
- Toirano Cave, Piazzale D. Maineri 1, 17055, Toirano (SV), Italy
| | - Chuan-Chou Shen
- High-Precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Department of Geosciences, National Taiwan University, Taipei, 10617, ROC, Taiwan.
- Research Center for Future Earth, National Taiwan University, Taipei, 10617, ROC, Taiwan.
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