A 550,000-year record of East Asian monsoon rainfall from 10Be in loess

被引：301

作者：

Beck, J. Warren ^{[1
,2
,3
]}

Zhou, Weijian ^{[4
,5
]}

Li, Cheng ^{[3
]}

Wu, Zhenkun ^{[3
,4
]}

White, Lara ^{[1
,3
]}

Xian, Feng ^{[4
]}

Kong, Xianghui ^{[3
,4
]}

An, Zhisheng ^{[4
,6
]}

机构：

[1] Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA

[2] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[3] Univ Arizona, NSF Arizona Accelerator Mass Spectrometry Lab, Tucson, AZ 85721 USA

[4] Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China

[5] Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China

[6] Jiaotong Univ, Inst Global Environm Change, Xian 710061, Shaanxi, Peoples R China

来源：

SCIENCE | 2018年 / 360卷 / 6391期

基金：

美国国家科学基金会;

关键词：

CROSS-EQUATORIAL FLOWS; ICE-AGE TERMINATIONS; SUMMER MONSOON; INDIAN-OCEAN; INTERANNUAL VARIABILITY; AGULHAS SYSTEM; CIRCULATION; SEA; CLIMATE; PRECIPITATION;

D O I：

10.1126/science.aam5825

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

070301 [无机化学]; 070403 [天体物理学]; 070507 [自然资源与国土空间规划学]; 090105 [作物生产系统与生态工程];

摘要：

Cosmogenic Be-10 flux from the atmosphere is a proxy for rainfall. Using this proxy, we derived a 550,000-year-long record of East Asian summer monsoon (EASM) rainfall from Chinese loess. This record is forced at orbital precession frequencies, with higher rainfall observed during Northern Hemisphere summer insolation maxima, although this response is damped during cold interstadials. The Be-10 monsoon rainfall proxy is also highly correlated with global ice-volume variations, which differs from Chinese cave delta O-18, which is only weakly correlated. We argue that both EASM intensity and Chinese cave delta O-18 are not governed by high-northern-latitude insolation, as suggested by others, but rather by low-latitude interhemispheric insolation gradients, which may also strongly influence global ice volume via monsoon dynamics.

引用

页码：877 / +

页数：5

共 38 条

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