Sediment records of long chain alkyl diols in an upwelling area of the coastal northern South China Sea

doi:10.1016/j.orggeochem.2018.03.014

	Sediment records of long chain alkyl diols in an upwelling area of the coastal northern South China Sea
	Zhu, Xiaowei 3; Jia, Guodong 1; Mao, Shengyi 4; Yan, Wen 2,3
刊名	ORGANIC GEOCHEMISTRY
	2018-07-01
卷号	121 页码:1-9
ISSN号	0146-6380
DOI	10.1016/j.orggeochem.2018.03.014
通讯作者	Jia, Guodong(jiagd@tongji.edu.cn)
英文摘要	Long chain alkyl diols in sediment cores were studied in the Yuedong Upwelling (YDU) area in the coastal northern South China Sea to investigate whether sea surface temperature (SST) and upwelling intensity over the last few decades can be traced by the diol-derived indices, i.e., the LDI (long chain diol index) as a proxy for SST and the DI-1 and DI-2 (diol index 1 and 2) as proxies for upwelling intensity. The influence of riverine long chain alkyl diols (e.g., 1,13- and 1,15-diols), which may affect LDI-reconstructed SSTs, was largely ruled out based on the comparison between diol distributions in suspended particulate materials in the Pearl River estuary and the core sediments. LDI-derived SSTs in downcore sediments matched well with local annual mean SSTs. The records of DI-2 changed in parallel with the local wind stress and inversely with SST at times of upwelling, suggesting that DI-2 is an effective proxy for upwelling intensity of YDU. The DI-1 showed a generally inverse variation pattern with DI-2, implying a major influence by SST, and it is thus not an applicable upwelling indicator for YDU. A negative relationship of DI-1 and a positive relationship of DI-2 with LDI-derived SST were observed. This occurrence might be attributed to El Nino-Southern Oscillation (ENSO), because the SST and upwelling intensity were largely modulated by ENSO, showing a warm annual mean SST during the years of enhanced El Nino and intensified summer upwelling. (C) 2018 Elsevier Ltd. All rights reserved.
资助项目	State Key RD project[2016YFA0601104] ; National Natural Science Foundation of China[41706059] ; National Natural Science Foundation of China[41061160498] ; National Natural Science Foundation of China[41706045] ; Key Laboratory of Ocean and Marginal Sea Geology, Chinese Academy of Sciences[OMG17-06] ; NSC[NSC97-2611-M-001-002-MY3]
WOS关键词	PEARL RIVER ESTUARY ; HYDROXY METHYL ALKANOATES ; PHYTOPLANKTON PRODUCTIVITY ; COMMUNITY STRUCTURE ; SEASONAL-VARIATION ; MARINE-SEDIMENTS ; DYNAMICS ; LIPIDS ; SHELF ; PLUME
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000434096000001
资助机构	State Key RD project ; National Natural Science Foundation of China ; Key Laboratory of Ocean and Marginal Sea Geology, Chinese Academy of Sciences ; NSC
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/23431]
专题	中国科学院广州能源研究所
通讯作者	Jia, Guodong
作者单位	1.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Xiaowei,Jia, Guodong,Mao, Shengyi,et al. Sediment records of long chain alkyl diols in an upwelling area of the coastal northern South China Sea[J]. ORGANIC GEOCHEMISTRY,2018,121:1-9.
APA	Zhu, Xiaowei,Jia, Guodong,Mao, Shengyi,&Yan, Wen.(2018).Sediment records of long chain alkyl diols in an upwelling area of the coastal northern South China Sea.ORGANIC GEOCHEMISTRY,121,1-9.
MLA	Zhu, Xiaowei,et al."Sediment records of long chain alkyl diols in an upwelling area of the coastal northern South China Sea".ORGANIC GEOCHEMISTRY 121(2018):1-9.