Interhemispheric Monsoon Response to Bipolar Forcing During Heinrich Stadial 4
Abstract Heinrich Stadial 4 (HS4) the most prominent iceberg collapse event of the Last Glacial and a key example for studying millennial‐scale events. Based on an improved chronological, we present high‐resolution, annually laminated speleothem record from southeastern China. Our data suggests that...
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| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2025-07-01
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| Series: | Geophysical Research Letters |
| Online Access: | https://doi.org/10.1029/2025GL115517 |
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| author | Rui Zhang Haiwei Zhang Christoph Spötl Xiyu Dong Carlos Pérez‐Mejíasa Hanying Li Peng Cheng Francisco W. Cruz Giselle Utida Youwei Li Miaomiao Wang Yueer Li Xuexue Jia Youfeng Ning Hai Cheng |
| author_facet | Rui Zhang Haiwei Zhang Christoph Spötl Xiyu Dong Carlos Pérez‐Mejíasa Hanying Li Peng Cheng Francisco W. Cruz Giselle Utida Youwei Li Miaomiao Wang Yueer Li Xuexue Jia Youfeng Ning Hai Cheng |
| author_sort | Rui Zhang |
| collection | DOAJ |
| description | Abstract Heinrich Stadial 4 (HS4) the most prominent iceberg collapse event of the Last Glacial and a key example for studying millennial‐scale events. Based on an improved chronological, we present high‐resolution, annually laminated speleothem record from southeastern China. Our data suggests that during the onset of HS4, the East Asian Summer Monsoon (EASM) and northern high‐latitude climate tightly coupled by the rapid southward migration of the Intertropical Convergence Zone. In contrast, low temperatures in Antarctica strengthened cross‐equatorial flow, leading to a gradual weakening of the Indian Summer Monsoon (ISM). Our records precisely date the onset of Heinrich Event 4 (HE4) at 39.70 ± 0.06 ka BP, narrowing the uncertainty in Greenland ice cores. At the onset of HE4, northern high‐latitude cooling weakened the EASM and intensified the South American Summer Monsoon (SASM), whereas the ISM declined significantly occurred only at the HE4 maximum, likely triggered by subsequent Antarctic warming. |
| format | Article |
| id | doaj-art-8bfd2e97739f4403be4d4487d116415f |
| institution | DOAJ |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-8bfd2e97739f4403be4d4487d116415f2025-08-20T02:46:20ZengWileyGeophysical Research Letters0094-82761944-80072025-07-015214n/an/a10.1029/2025GL115517Interhemispheric Monsoon Response to Bipolar Forcing During Heinrich Stadial 4Rui Zhang0Haiwei Zhang1Christoph Spötl2Xiyu Dong3Carlos Pérez‐Mejíasa4Hanying Li5Peng Cheng6Francisco W. Cruz7Giselle Utida8Youwei Li9Miaomiao Wang10Yueer Li11Xuexue Jia12Youfeng Ning13Hai Cheng14Institute of Global Environmental Change Xi'an Jiaotong University Xi'an ChinaInstitute of Global Environmental Change Xi'an Jiaotong University Xi'an ChinaInstitute of Geology University of Innsbruck Innsbruck AustriaInstitute of Global Environmental Change Xi'an Jiaotong University Xi'an ChinaInstitute of Global Environmental Change Xi'an Jiaotong University Xi'an ChinaInstitute of Global Environmental Change Xi'an Jiaotong University Xi'an ChinaInstitute of Global Environmental Change Xi'an Jiaotong University Xi'an ChinaInstituto de Geociências Universidade de São Paulo Sao Paolo BrazilInstituto de Geociências Universidade de São Paulo Sao Paolo BrazilInstitute of Global Environmental Change Xi'an Jiaotong University Xi'an ChinaInstitute of Global Environmental Change Xi'an Jiaotong University Xi'an ChinaInstitute of Global Environmental Change Xi'an Jiaotong University Xi'an ChinaInstitute of Global Environmental Change Xi'an Jiaotong University Xi'an ChinaInstitute of Global Environmental Change Xi'an Jiaotong University Xi'an ChinaInstitute of Global Environmental Change Xi'an Jiaotong University Xi'an ChinaAbstract Heinrich Stadial 4 (HS4) the most prominent iceberg collapse event of the Last Glacial and a key example for studying millennial‐scale events. Based on an improved chronological, we present high‐resolution, annually laminated speleothem record from southeastern China. Our data suggests that during the onset of HS4, the East Asian Summer Monsoon (EASM) and northern high‐latitude climate tightly coupled by the rapid southward migration of the Intertropical Convergence Zone. In contrast, low temperatures in Antarctica strengthened cross‐equatorial flow, leading to a gradual weakening of the Indian Summer Monsoon (ISM). Our records precisely date the onset of Heinrich Event 4 (HE4) at 39.70 ± 0.06 ka BP, narrowing the uncertainty in Greenland ice cores. At the onset of HE4, northern high‐latitude cooling weakened the EASM and intensified the South American Summer Monsoon (SASM), whereas the ISM declined significantly occurred only at the HE4 maximum, likely triggered by subsequent Antarctic warming.https://doi.org/10.1029/2025GL115517 |
| spellingShingle | Rui Zhang Haiwei Zhang Christoph Spötl Xiyu Dong Carlos Pérez‐Mejíasa Hanying Li Peng Cheng Francisco W. Cruz Giselle Utida Youwei Li Miaomiao Wang Yueer Li Xuexue Jia Youfeng Ning Hai Cheng Interhemispheric Monsoon Response to Bipolar Forcing During Heinrich Stadial 4 Geophysical Research Letters |
| title | Interhemispheric Monsoon Response to Bipolar Forcing During Heinrich Stadial 4 |
| title_full | Interhemispheric Monsoon Response to Bipolar Forcing During Heinrich Stadial 4 |
| title_fullStr | Interhemispheric Monsoon Response to Bipolar Forcing During Heinrich Stadial 4 |
| title_full_unstemmed | Interhemispheric Monsoon Response to Bipolar Forcing During Heinrich Stadial 4 |
| title_short | Interhemispheric Monsoon Response to Bipolar Forcing During Heinrich Stadial 4 |
| title_sort | interhemispheric monsoon response to bipolar forcing during heinrich stadial 4 |
| url | https://doi.org/10.1029/2025GL115517 |
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