文献类型：期刊文献

英文题名：Asian Winter Monsoon Imprint on the Water Column Structure at the Northern South China Sea Coast

作者：Zhang, Yancheng[1,2];Zhu, Kai[2];Huang, Chao[3,4];Kong, Deming[4];He, Yuxin[5];Wang, Huanye[6];Liu, Weiguo[6];Xie, Zhouqing[7];Wei, Gangjian[3];Liu, Zhonghui[2]

机构：[1]Sun Yat Sen Univ, Sch Marine Sci, Zhuhai, Peoples R China;[2]Univ Hong Kong, Dept Earth Sci, Hong Kong, Peoples R China;[3]Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou, Peoples R China;[4]Guangdong Ocean Univ, Guangdong Prov Key Lab Coastal Ocean Variat & Dis, Zhanjiang, Peoples R China;[5]Zhejiang Univ, Sch Earth Sci, Hangzhou, Peoples R China;[6]Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China;[7]Univ Sci & Technol China, Dept Environm Sci & Engn, Anhui Key Lab Polar Environm & Global Change, Hefei, Peoples R China

年份：2021

卷号：9

外文期刊名：FRONTIERS IN EARTH SCIENCE

收录：SCI-EXPANDED(收录号：WOS:000697923100001)、、EI(收录号：20213610870757)、Scopus(收录号：2-s2.0-85114284687)、WOS

基金：This work was supported by the National Key Research and Development Program of China (2016YFA0601204) and Hong Kong RGC Grant 17325516.

语种：英文

外文关键词：South China Sea; coastal conditions; GDGTs; last millennium; Asian winter monsoon

外文摘要：Coastal regions of the northern South China Sea (SCS) strongly interact with the Asian monsoon circulation (AMC). Thus, variations of sea surface temperature (SST) here are newly suggested to document AMC changes in an effective manner, but additional physical parameters of oceanic conditions, probably also in relation to the AMC system, remain poorly understood. In this study, we analyzed glycerol dialkyl glycerol tetraethers (GDGTs) from a well-dated sediment core YJ, retrieved at the northern SCS coast, to further scrutinize the intrinsic response of water column to winter AMC strength. It shows that within the time frame of past similar to 1,000 years, the tetraether index of lipids with 86 carbon atoms (TEX86 ) and published alkenone ( U-37(K)') temperature records together confirm a reduced thermal gradient during the Little Ice Age (LIA), in comparison to that during the Medieval Climate Anomaly (MCA). Considering concurrent variations of the branched and isoprenoid tetraether (BIT) and the ratio of archaeol to caldarchaeol (ACE), for example, with decreased values (