Detection of a mid-Holocene climate event at 7.2 ka BP based on an analysis of globally-distributed multi-proxy records
文献类型：期刊论文
| 作者 | Hou, Mei5; Wu, Wenxiang2; Cohen, David J.; Zeng, Zhaoqi5; Huang, Han; Zheng, Hongbo1; Ge, Quansheng |
| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| 出版日期 | 2023-05-15 |
| 卷号 | 618页码:111525 |
| ISSN号 | 0031-0182 |
| 关键词 | 7 2 ka event Summer monsoon Solar activity Volcanic eruption |
| DOI | 10.1016/j.palaeo.2023.111525 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Identification of Holocene climate events, their temporal and spatial characteristics, and their causal mechanisms are important for understanding past climate systems with implications for interpreting ancient cultural transformations. In this paper, we analyse globally-distributed, high-resolution climate proxy records from 58 sites to develop a comprehensive understanding of climate change around 7.2 ka BP. Analysis of the data compilation, which comprises records from lake sediments, one loess section, speleothems, marine sediments, and ice cores, show that the climate event is manifested as a weakening of the Asian summer monsoon and a strengthening of the South American summer monsoon. Climate change also involves dramatic cooling and wetter conditions in north-central Europe, widespread aridity across the Africa and west-south North America, contrasting patterns of precipitation variability throughout the Mediterranean, and notable cooling over the polar regions, suggesting that this is a global climate event. A close correspondence between the 7.2 ka event and the timing of solar irradiance minima, strong volcanic eruptions, meltwater flux into the North Atlantic Ocean, and an orbitallyinduced decrease in summer solar insolation suggests a possible causal link with these phenomena. We suggest that climate anomalies around 7.2 ka BP may be specifically explained as a response to southward migration of the Intertropical Convergence Zone, onset of an increasingly El Nin & SIM;o-like state, reinforcement of the westerlies, and slowing of the Atlantic Meridional Overturning Circulation (AMOC). |
| WOS关键词 | SEA-LEVEL RISE ; NORTH-ATLANTIC CLIMATE ; INTERTROPICAL CONVERGENCE ZONE ; HOLOCENE GLACIER FLUCTUATIONS ; SOUTHERN OKINAWA TROUGH ; EAST-ASIAN MONSOON ; LAST DEGLACIATION ; VOLCANIC-ERUPTIONS ; LATEST PLEISTOCENE ; ICE-CORE |
| WOS研究方向 | Physical Geography ; Geology ; Paleontology |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001030145200001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/194417]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Cohen, David J.] Natl Taiwan Univ, Dept Anthropol, Taipei 10617, Peoples R China 2.Yunnan Univ, Res Ctr Earth Syst Sci, Kunming 650091, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, 11A, Datun Rd, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hou, Mei,Wu, Wenxiang,Cohen, David J.,et al. Detection of a mid-Holocene climate event at 7.2 ka BP based on an analysis of globally-distributed multi-proxy records[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2023,618:111525. |
| APA | Hou, Mei.,Wu, Wenxiang.,Cohen, David J..,Zeng, Zhaoqi.,Huang, Han.,...&Ge, Quansheng.(2023).Detection of a mid-Holocene climate event at 7.2 ka BP based on an analysis of globally-distributed multi-proxy records.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,618,111525. |
| MLA | Hou, Mei,et al."Detection of a mid-Holocene climate event at 7.2 ka BP based on an analysis of globally-distributed multi-proxy records".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 618(2023):111525. |
入库方式： OAI收割
来源：地理科学与资源研究所
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