干旱区生态环境知识资源中心(Arid): Evidence for Abruspt climatic Changes on northwestern margin of East Asian Monsoon Region During Last Deglaciation

Arid

DOI	10.1007/s11769-004-0018-y
	Evidence for Abruspt climatic Changes on northwestern margin of East Asian Monsoon Region During Last Deglaciation
	Qiang Mingrui; Li Sen; Gao Shangyu
来源期刊	Chinese Geographical Science
ISSN	1002-0063
出版年	2004
卷号	14 期号:2 页码:117-121
英文摘要	Based on investigations of the Zhongwei Nanshan aeolian section situated in the southeastern margin of Tcngger Desert, carbon-14 and TL (thermoluminescence) dating results and paleoclimatic proxies such as magnetic susceptibility and grain size, we inferred that the northwestern margin of East Asian monsoon region experienced abrupt climatic changes during the last deglaciation. Six oscillation events were identified: Oldest Dryas, Bolling, Older Dryas, Allerod, Intra-Allerod Cold Period (IACP) and Younger Dryas (YD). The summer monsoon was weaker during Oldest Dryas and Younger Dryas when the winter monsoon was stronger. However, during the B/A (Bolling/Allerod)period, the summer monsoon strengthened, reflected by magnetic susceptibility, when the winter monsoon also became strong, which is different from the paleoclimatic pattern established in the East Asian monsoon region. Furthermore,the summer monsoon was nearly in phase with the climate changes inferred from the oxygen isotopic records of Greenland ice cores. It could be speculated that the variations of the sea ice cover in the high latitudes of the North Hemisphere affected the high pressure of Asian continent and the changes of the winter monsoon inland. On the other hand,the sea ice cover variations might have indirectly caused the occurrence of ENSO events that has tightly been related to the summer monsoon in northwest margin of East Asian monsoon region.
英文关键词	last deglaciation East Asian monsoon abrupt climatic changes QIANG Ming-rui LI Se GAO Shang-yu
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:1841865
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334859
作者单位	Qiang Mingrui, China Center of Desert Research, Beijing Normal University, Key Laboratory of Environmental Changes and Natural Disaster, the Ministry of Education of China, BeiJing 100875, China.; Gao Shangyu, China Center of Desert Research, Beijing Normal University, Key Laboratory of Environmental Changes and Natural Disaster, the Ministry of Education of China, BeiJing 100875, China.; Li Sen, Department of Tourism, Resources and Environment, Foshan University, Foshan, Guangdong 528000, China.
推荐引用方式 GB/T 7714	Qiang Mingrui,Li Sen,Gao Shangyu. Evidence for Abruspt climatic Changes on northwestern margin of East Asian Monsoon Region During Last Deglaciation[J],2004,14(2):117-121.
APA	Qiang Mingrui,Li Sen,&Gao Shangyu.(2004).Evidence for Abruspt climatic Changes on northwestern margin of East Asian Monsoon Region During Last Deglaciation.Chinese Geographical Science,14(2),117-121.
MLA	Qiang Mingrui,et al."Evidence for Abruspt climatic Changes on northwestern margin of East Asian Monsoon Region During Last Deglaciation".Chinese Geographical Science 14.2(2004):117-121.