Correlation and anti-correlation of the East Asian summer and winter monsoons during the last 21,000 years

Understanding the past significant changes of the East Asia Summer Monsoon (EASM) and Winter Monsoon (EAWM) is critical for improving the projections of future climate over East Asia. One key issue that has remained outstanding from the paleo-climatic records is whether the evolution of the EASM and...

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Bibliographic Details
Published in:Nature Communications
Main Authors: Wen, Xinyu, Liu, Zhengyu, Wang, Shaowu, Cheng, Jun, Zhu, Jiang
Other Authors: Wen, XY (reprint author), Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Beijing 100871, Peoples R China.; Wen, XY (reprint author), Peking Univ, Sch Phys, Lab Climate & Ocean Atmosphere Studies, Beijing 100871, Peoples R China., Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Beijing 100871, Peoples R China., Peking Univ, Sch Phys, Lab Climate & Ocean Atmosphere Studies, Beijing 100871, Peoples R China., Univ Wisconsin, Dept Atmospher & Ocean Sci, Nelson Inst Environm Studies, Madison, WI 53706 USA., Univ Wisconsin, Ctr Climat Res, Nelson Inst Environm Studies, Madison, WI 53706 USA., Nanjing Univ Informat Sci & Technol, Polar Climate Syst & Global Change Lab, Nanjing 210044, Jiangsu, Peoples R China., Wen, XY (reprint author), Peking Univ, Sch Phys, Lab Climate & Ocean Atmosphere Studies, Beijing 100871, Peoples R China.
Format: Journal/Newspaper
Language:English
Published: NATURE COMMUNICATIONS 2016
Subjects:
SOUTHERN-HEMISPHERE
HIGH-RESOLUTION
GLOBAL MONSOON
CLIMATE
DEGLACIATION
RECORD
CCSM3
MODEL
VARIABILITY
SIMULATION
North Atlantic
Online Access:https://hdl.handle.net/20.500.11897/433241
https://doi.org/10.1038/ncomms11999
Description
Summary:Understanding the past significant changes of the East Asia Summer Monsoon (EASM) and Winter Monsoon (EAWM) is critical for improving the projections of future climate over East Asia. One key issue that has remained outstanding from the paleo-climatic records is whether the evolution of the EASM and EAWM are correlated. Here, using a set of long-term transient simulations of the climate evolution of the last 21,000 years, we show that the EASM and EAWM are positively correlated on the orbital timescale in response to the precessional forcing, but are anti-correlated on millennial timescales in response to North Atlantic melt water forcing. The relation between EASM and EAWM can differ dramatically for different timescales because of the different response mechanisms, highlighting the complex dynamics of the East Asian monsoon system and the challenges for future projection. National Science Foundation of China [41130105, 41130962, 41005035, 41206024]; US NSF; Office of Science (BER), DOE SCI(E) PubMed ARTICLE xwen@pku.edu.cn 11999 7

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