Stalagmite-inferred centennial variability of the Asian summer monsoon in southwest China between 58 and 791 ka BP

We use a new spliced stalagmite oxygen isotope record from Yangkou Cave and Xinya Cave, Chongqing, southwest China, to reconstruct the centennial-millennial-scale changes in Asian Summer Monsoon (ASM) intensity between 58.0 and 79.3 thousand years before present (ka BP, before AD 1950). This multide...

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Bibliographic Details
Published in:Quaternary Science Reviews
Main Authors: Zhang, Tao-Tao, Li, Ting-Yong, Cheng, Hai, Edwards, R. Lawrence, Shen, Chuan-Chou, Spoetl, Christoph, Li, Hong-Chun, Han, Li-Yin, Li, Jun-Yun, Huang, Chun-Xia, Zhao, Xin
Format: Article in Journal/Newspaper
Language:English
Published: 2017
Subjects:
Stalagmite Delta O-18
Asian Summer Monsoon
Greenland Interstadials
Heinrich Event 6
Southern Hemisphere
Science & Technology
Physical Sciences
LAST GLACIAL PERIOD
NORTH-ATLANTIC CLIMATE
GREENLAND ICE-CORE
INTERTROPICAL CONVERGENCE ZONE
MILLENNIAL-SCALE VARIABILITY
INDIAN-OCEAN CLIMATE
HIGH-RESOLUTION
OXYGEN-ISOTOPE
WINTER MONSOON
HEINRICH EVENT
Physical Geography
Geology
Geography
Physical
Geosciences
Multidisciplinary
Greenland
Indian
Antarc*
Antarctica
Greenland ice core
ice core
North Atlantic
Online Access:http://ir.ieecas.cn/handle/361006/5494
https://doi.org/10.1016/j.quascirev.2017.02.003
Description
Summary:We use a new spliced stalagmite oxygen isotope record from Yangkou Cave and Xinya Cave, Chongqing, southwest China, to reconstruct the centennial-millennial-scale changes in Asian Summer Monsoon (ASM) intensity between 58.0 and 79.3 thousand years before present (ka BP, before AD 1950). This multidecadally resolved record shows four strong ASM periods, corresponding to Greenland Interstadials (GIS) 17-20, and three weak ASM episodes, among which, the one starting at 61.5 +/- 0.2 ka BP and ending at 59.4 +/- 0.2 ka BP that may correlate with Heinrich Event 6. The close agreement of climate events between China and Greenland supports the notion that the ASM is dominantly governed by high-latitude forcings in the Northern Hemisphere. The short-lived interstadial GIS 18, however, lasted for over 3 kyr in the records derived from ASM region, reflecting a gradual decline of ASM intensity, which coincides with a millennial-scale warming trend in Antarctica. This suggests an additional forcing of the ASM by the Southern Hemisphere, which also affected GIS 8-12, H4 and H5, as shown by previous speleothem studies from the ASM region. (C) 2017 Elsevier Ltd. All rights reserved.

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