Onset and termination of Heinrich Stadial 4 and the underlying climate dynamics

被引：32

作者：

Cheng, Hai ^{[1
,2
,3
]}

Xu, Yao ^{[1
]}

Dong, Xiyu ^{[1
]}

Zhao, Jingyao ^{[1
]}

Li, Hanying ^{[1
]}

Baker, Jonathan ^{[1
]}

Sinha, Ashish ^{[4
]}

Spotl, Christoph ^{[5
]}

Zhang, Haiwei ^{[1
]}

Du, Wenjing ^{[1
]}

Zong, Baoyun ^{[1
]}

Jia, Xue ^{[1
]}

Kathayat, Gayatri ^{[1
]}

Liu, Dianbing ^{[6
]}

Cai, Yanjun ^{[1
]}

Wang, Xianfeng ^{[7
]}

Strikis, Nicolas M. ^{[8
]}

Cruz, Francisco W. ^{[8
]}

Auler, Augusto S. ^{[9
]}

Gupta, Anil K. ^{[10
]}

Singh, Raj Kumar ^{[11
]}

Jaglan, Sonu ^{[12
]}

Dutt, Som ^{[13
]}

Liu, Zhengyu ^{[14
]}

Edwards, R. Lawrence ^{[15
]}

机构：

[1] Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710054, Peoples R China

[2] Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China

[3] CAGS, Inst Karst Geol, Key Lab Karst Dynam, MLR, Guilin 541004, Peoples R China

[4] Calif State Univ Dominguez Hills, Dept Earth Sci, Carson, CA 90747 USA

[5] Univ Innsbruck, Inst Geol, A-6020 Innsbruck, Austria

[6] Nanjing Normal Univ, Coll Geog Sci, Nanjing, Peoples R China

[7] Nanyang Technol Univ, Earth Observ Singapore, Singapore 639798, Singapore

[8] Univ Sao Paulo, Inst Geociencias, BR-05508090 Sao Paulo, Brazil

[9] Inst Carste, Rua Barcelona 240-302, BR-30360260 Belo Horizonte, MG, Brazil

[10] Indian Inst Technol Kharagpur, Dept Geol & Geophys, Kharagpur, W Bengal, India

[11] Indian Inst Technol Bhubaneswar, Sch Earth Ocean & Climate Sci, Argul 752050, India

[12] Govt PG Coll Narnaul, Dept Geol, Mahendragarh 123001, India

[13] Wadia Inst Himalayan Geol, Dehra Dun 248001, Uttarakhand, India

[14] Ohio State Univ, Dept Geog, Columbus, OH 43210 USA

[15] Univ Minnesota, Dept Earth & Environm Sci, Minneapolis, MN 55455 USA

来源：

COMMUNICATIONS EARTH & ENVIRONMENT | 2021年 / 2卷 / 01期

关键词：

LAST GLACIAL PERIOD; GREENLAND ICE-CORE; OCEAN CIRCULATION; ATLANTIC-OCEAN; MONSOON RECORD; SUMMER MONSOON; HULU CAVE; OSCILLATIONS; VARIABILITY; TEMPERATURE;

D O I：

10.1038/s43247-021-00304-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Heinrich Stadial 4 during the last glacial period was marked by severe cooling at northern high latitudes along with the attendant changes in Asian Monsoon (Chinese Stadial 4) and South American Monsoon (South American Stadial 4). Here we present improved constraints on timings of Heinrich/Chinese/South American Stadial 4 onset and termination at sub-centennial precision based on speleothem records. We show that their initial onsets were essentially synchronous (40.20 +/- 0.08 thousand years ago) and led the Antarctic warming by similar to 300 years. The Heinrich/Chinese Stadial 4 termination commenced at 38.34 +/- 0.07 thousand years ago following a centennial-scale reduction in the Amazon River runoff and a poleward shift of the Southern Westerly wind belt. These two precursor events may have contributed to a reduced Amazon Plume Region and an enhanced Agulhas salt/heat leakage that led to an abrupt resumption of the Atlantic Meridional Ocean Circulation eventually triggering the Heinrich/Chinese Stadial 4 termination.

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