Evidence for Asian summer monsoon precipitation instability of the Younger Dryas phase |
| |
Authors: | Jie Zhou Weijian Zhou Huizhong Chen Xiangxi Xue G Nanson |
| |
Institution: | (1) State Key Laboratory of Lass Md Quaternary Ceology, Chinese Academy of Sciences, 710054 Xi’an, China;(2) Desert Research Institute, Chinese Academy of Sciences, 730000 Lanzhou, China;(3) Department of Geology, Northwest University, 710000 Xi’an, China;(4) School of Geosciences, University of Wollongong, 2522 NSW, Australia |
| |
Abstract: | The loess and desert transitional zone of China responses sensitively to the Asian monsoon fluctuations. A high resolution
loess-dust and aeolian sand-paleosols section records the climatic history of the Younger Dryas. Based upon AMS14C dating of pollen concentrates and proxy climate indices including magnetic susceptibilty, organic carbon content and grain
size, it is demonstrated that the Asian monsoon climate manifests not only cooling as in other regions of the Northern Hemisphere,
but also unusual oscillations in precipitation which were probably associated with atmospheric interactions between both the
Northern and Southern Hemispheres and atmospheric pressure anomalies of topic Pacific Ocean (ENSO). |
| |
Keywords: | Younger Dryas Asian summer monsoon precipitation instability loess/desert transitional zone |
本文献已被 SpringerLink 等数据库收录! |
| 点击此处可从《中国科学通报(英文版)》浏览原始摘要信息 |
| 点击此处可从《中国科学通报(英文版)》下载免费的PDF全文 |